Radiographic visualization of the aorta and its branches by injection of contrast media, using percutaneous puncture or catheterization procedures.
An abnormal balloon- or sac-like dilatation in the wall of AORTA.
The dilatation of the aortic wall behind each of the cusps of the aortic valve.
Injuries caused by impact with a blunt object where there is no penetration of the skin.
The portion of the descending aorta proceeding from the arch of the aorta and extending to the DIAPHRAGM, eventually connecting to the ABDOMINAL AORTA.
The aorta from the DIAPHRAGM to the bifurcation into the right and left common iliac arteries.
Aneurysm caused by a tear in the TUNICA INTIMA of a blood vessel leading to interstitial HEMORRHAGE, and splitting (dissecting) of the vessel wall, often involving the AORTA. Dissection between the intima and media causes luminal occlusion. Dissection at the media, or between the media and the outer adventitia causes aneurismal dilation.
A congenital heart defect characterized by the persistent opening of fetal DUCTUS ARTERIOSUS that connects the PULMONARY ARTERY to the descending aorta (AORTA, DESCENDING) allowing unoxygenated blood to bypass the lung and flow to the PLACENTA. Normally, the ductus is closed shortly after birth.
Narrowing or occlusion of the RENAL ARTERY or arteries. It is due usually to ATHEROSCLEROSIS; FIBROMUSCULAR DYSPLASIA; THROMBOSIS; EMBOLISM, or external pressure. The reduced renal perfusion can lead to renovascular hypertension (HYPERTENSION, RENOVASCULAR).
Radiography of blood vessels after injection of a contrast medium.
The tearing or bursting of the wall along any portion of the AORTA, such as thoracic or abdominal. It may result from the rupture of an aneurysm or it may be due to TRAUMA.
A birth defect characterized by the narrowing of the AORTA that can be of varying degree and at any point from the transverse arch to the iliac bifurcation. Aortic coarctation causes arterial HYPERTENSION before the point of narrowing and arterial HYPOTENSION beyond the narrowed portion.
Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body.
Pathological processes involving any part of the AORTA.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.
Pathological condition characterized by the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to regurgitation. It is caused by diseases of the AORTIC VALVE or its surrounding tissue (aortic root).
An abnormal balloon- or sac-like dilatation in the wall of the THORACIC AORTA. This proximal descending portion of aorta gives rise to the visceral and the parietal branches above the aortic hiatus at the diaphragm.
A branch of the abdominal aorta which supplies the kidneys, adrenal glands and ureters.
An abnormal balloon- or sac-like dilatation in the wall of the ABDOMINAL AORTA which gives rise to the visceral, the parietal, and the terminal (iliac) branches below the aortic hiatus at the diaphragm.
Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.
The valve between the left ventricle and the ascending aorta which prevents backflow into the left ventricle.
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.
Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
Messages between computer users via COMPUTER COMMUNICATION NETWORKS. This feature duplicates most of the features of paper mail, such as forwarding, multiple copies, and attachments of images and other file types, but with a speed advantage. The term also refers to an individual message sent in this way.
Mechanical food dispensing machines.
The guidelines and policy statements set forth by the editor(s) or editorial board of a publication.
The profession of writing. Also the identity of the writer as the creator of a literary production.
A publication issued at stated, more or less regular, intervals.
The functions and activities carried out by the U.S. Postal Service, foreign postal services, and private postal services such as Federal Express.
A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.
Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (>2.5 cm in diameter) may compress adjacent structures, including the OCULOMOTOR NERVE. (From Adams et al., Principles of Neurology, 6th ed, p841)
A localized bulging or dilatation in the muscle wall of a heart (MYOCARDIUM), usually in the LEFT VENTRICLE. Blood-filled aneurysms are dangerous because they may burst. Fibrous aneurysms interfere with the heart function through the loss of contractility. True aneurysm is bound by the vessel wall or cardiac wall. False aneurysms are HEMATOMA caused by myocardial rupture.
Forced expiratory effort against a closed GLOTTIS.
Pathological outpouching or sac-like dilatation in the wall of any blood vessel (ARTERIES or VEINS) or the heart (HEART ANEURYSM). It indicates a thin and weakened area in the wall which may later rupture. Aneurysms are classified by location, etiology, or other characteristics.
The insertion of a catheter through the skin and body wall into the kidney pelvis, mainly to provide urine drainage where the ureter is not functional. It is used also to remove or dissolve renal calculi and to diagnose ureteral obstruction.
Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.
Catheters designed to be left within an organ or passage for an extended period of time.
A flexible, tubular device that is used to carry fluids into or from a blood vessel, hollow organ, or body cavity.
Region of the back including the LUMBAR VERTEBRAE, SACRUM, and nearby structures.
The artery supplying nearly all the left half of the transverse colon, the whole of the descending colon, the sigmoid colon, and the greater part of the rectum. It is smaller than the superior mesenteric artery (MESENTERIC ARTERY, SUPERIOR) and arises from the aorta above its bifurcation into the common iliac arteries.
A method of hemostasis utilizing various agents such as Gelfoam, silastic, metal, glass, or plastic pellets, autologous clot, fat, and muscle as emboli. It has been used in the treatment of spinal cord and INTRACRANIAL ARTERIOVENOUS MALFORMATIONS, renal arteriovenous fistulas, gastrointestinal bleeding, epistaxis, hypersplenism, certain highly vascular tumors, traumatic rupture of blood vessels, and control of operative hemorrhage.
The continuation of the axillary artery; it branches into the radial and ulnar arteries.
A 20-carbon-chain fatty acid, unsaturated at positions 8, 11, and 14. It differs from arachidonic acid, 5,8,11,14-eicosatetraenoic acid, only at position 5.

Transcatheter arterial embolization for impending rupture of an isolated internal iliac artery aneurysm complicated with disseminated intravascular coagulation. (1/1212)

A 90-year-old male, with impending rupture of an isolated internal iliac artery aneurysm (IIAA) complicated with disseminated intravascular coagulation (DIC) was successfully treated with transcatheter arterial embolization (TAE). After TAE, enlargement of the aneurysm was arrested and coagulation-fibrinolytic abnormalities induced by DIC improved without severe complications. Although IIAA is relatively rare, the post-operative mortality of patients with ruptures is reportedly high. We assessed the usefulness of this procedure for impending rupture of IIAA, especially for patients in high risk groups.  (+info)

Anomalous origin of the left coronary artery from the pulmonary artery: natural history and normal pregnancies. (2/1212)

Two female patients are described with anomalous origin of the left coronary artery arising from the pulmonary artery who sustained an anterolateral myocardial infarction in infancy. Neither patient received surgical treatment although both have lived to middle age with minimal cardiovascular problems and have had uncomplicated pregnancies. Good exercise tolerance and long term survival may be possible even without surgery for patients with this anomaly.  (+info)

Intimal tear without hematoma: an important variant of aortic dissection that can elude current imaging techniques. (3/1212)

BACKGROUND: The modern imaging techniques of transesophageal echocardiography, CT, and MRI are reported to have up to 100% sensitivity in detecting the classic class of aortic dissection; however, anecdotal reports of patient deaths from a missed diagnosis of subtle classes of variants are increasingly being noted. METHODS AND RESULTS: In a series of 181 consecutive patients who had ascending or aortic arch repairs, 9 patients (5%) had subtle aortic dissection not diagnosed preoperatively. All preoperative studies in patients with missed aortic dissection were reviewed in detail. All 9 patients (2 with Marfan syndrome, 1 with Takayasu's disease) with undiagnosed aortic dissection had undergone >/=3 imaging techniques, with the finding of ascending aortic dilatation (4.7 to 9 cm) in all 9 and significant aortic valve regurgitation in 7. In 6 patients, an eccentric ascending aortic bulge was present but not diagnostic of aortic dissection on aortography. At operation, aortic dissection tears were limited in extent and involved the intima without extensive undermining of the intima or an intimal "flap." Eight had composite valve grafts inserted, and all survived. Of the larger series of 181 patients, 98% (179 of 181) were 30-day survivors. CONCLUSIONS: In patients with suspected aortic dissection not proven by modern noninvasive imaging techniques, further study should be performed, including multiple views of the ascending aorta by aortography. If patients have an ascending aneurysm, particularly if eccentric on aortography and associated with aortic valve regurgitation, an urgent surgical repair should be considered, with excellent results expected.  (+info)

Follow-up results of transvenous occlusion of patent ductus arteriosus with the buttoned device. (4/1212)

OBJECTIVES: The purpose of this presentation is to document results of buttoned device (BD) occlusion of patent ductus arteriosus (PDA) in a large number of patients with particular emphasis on long-term follow-up in an attempt to provide evidence for feasibility, safety and effectiveness of this method of PDA closure. BACKGROUND: Immediate and short-term results of BD occlusion of PDA have been documented in a limited number of children. METHODS: During a six-year period ending August 1996, transcatheter BD closure of PDA was attempted in 284 patients, ages 0.3 to 92 years (median 7) under a protocol approved by the local institutional review boards and FDA with an investigational device exemption in U.S. cases. RESULTS: The PDAs measured 1 to 15 mm (median 4) at the narrowest diameter; 20 were larger than 8 mm and 10 larger than 10 mm. They were occluded with devices measuring from 15 to 35 mm delivered via 7F (N = 140) or 8F (N = 144) sheaths. Successful implantation of the device was accomplished in 278 (98%) of 284 patients. The Qp:Qs decreased from 1.8+/-0.6 (mean+/-SD) to 1.09+/-0.19 (p < 0.001). Effective occlusion defined as no (N = 167 [60%]) or trivial (N = 79 [28%]) residual shunt was achieved in 246 (88%) patients. All types of PDAs, irrespective of the shape (conical, tubular or short), size (small or large) or length (short or long) of the PDA and previously implanted Rashkind devices, could be occluded. Follow-up data, 1 to 60 months (median 24) after device implantation, were available in 234 (84%) patients. Seven (3%) patients required reintervention to treat residual shunt with (N = 2) or without (N = 5) hemolysis. Actuarial reintervention-free rates were 95% at 1 and 5 years. There was gradual reduction of actuarial residual shunts and were 40%, 28%, 21%, 14%, 11%, 10%, 6% and 0% respectively at 1 day, 1, 6, 12, 24, 36, 48 and 60 months after device implantation. Incorporation of folding plug over the button loop in 10 additional patients produced immediate and complete occlusion of PDA. CONCLUSIONS: This large multiinstitutional experience confirms the feasibility, safety and effectiveness of buttoned device closure of PDAs. All types of PDAs irrespective of the shape, length and diameter can be effectively occluded. Incorporation of folding plug over the button loop produces complete PDA occlusion at the time of device implantation.  (+info)

The snare-assisted technique for transcatheter coil occlusion of moderate to large patent ductus arteriosus: immediate and intermediate results. (5/1212)

OBJECTIVES: The purpose of this study was to evaluate the feasibility, safety and efficacy of using a snare-assisted technique to coil occlude the moderate to large size patent ductus arteriosus (PDA). BACKGROUND: Transcatheter occlusion of small PDAs using Gianturco coils is safe and effective. However, in larger size PDAs and/or those with short PDA length, the procedure still carries risks of coil embolization, incomplete occlusion and failure to implant the coil. METHODS: From January 1994 to June 1997, the records of 104 consecutive snare-assisted coil occlusions of moderate to large PDAs (minimum diameter >2.0 mm) were reviewed. Immediate and intermediate outcomes including complete and partial occlusion, failure to implant and complications were analyzed with respect to ductal type and size. RESULTS: Patient age ranged from 0.1 to 70.1 years (median 3.3 years). Minimum PDA diameter ranged from 2.1 to 6.8 mm (mean 3.0 +/- 0.9 mm). Angiographic types were A-62, B-13, C-6, D-14 and E-9. Using the snare-assisted technique, coil placement was successful in 104/104 patients (100%), irrespective of size or angiographic type. Immediate complete closure was observed in 73/104 (70.2%) and was related to smaller PDA size, but not to angiographic type. Complete closure was documented in 102/104 (98.1%) at 2- to 16-month follow-up. Successful closure was unrelated to PDA size or type. Coil embolization to the pulmonary artery occurred in 3/104 (2.9%) patients and was not related to PDA size or type. The need for multiple coils was found in 28/104 patients (26.9%), and was related to larger PDA size, but not to angiographic type. CONCLUSIONS: The snare-assisted delivery technique allows successful occlusion of moderate to large PDAs up to 6.8 mm, irrespective of angiographic type. This technique permits improved control and accuracy of coil placement, and facilitates delivery of multiple coils.  (+info)

Surgical renal artery reconstruction without contrast arteriography: the role of clinical profiling and magnetic resonance angiography. (6/1212)

PURPOSE: Contrast arteriography is the accepted gold standard for diagnosis and treatment planning in patients with atherosclerotic renovascular disease (RVD). In this study, the results of a selective policy of surgical renal artery reconstruction (RAR) with magnetic resonance angiography (MRA) as the sole preoperative imaging modality are reviewed. METHODS: From May 1993 to May 1998, 25 patients underwent RAR after clinical evaluation, and aortic/renal MRA performed with a gadolinium-enhanced and 3-dimensional phase contrast technique. Clinical presentations suggested severe RVD in all patients and included poorly controlled hypertension (16 patients), hospitalization for hypertensive crises and/or acute pulmonary edema (13), and deterioration of renal function within one year of operation (15). Thirteen patients had associated aortic pathologic conditions (12 aneurysms, 1 aortoiliac occlusive disease), and eight of these patients also underwent noncontrast computed tomography scans. Significant renal dysfunction (serum creatinine level, >/=2.0 mg/dL) was present in all but 4 patients with 14 of 25 patients having extreme (creatinine level, >/=3.0 mg/dL) dysfunction. RESULTS: Hemodynamically significant RVD in the main renal artery was verified at operation in 37 of 38 reconstructed main renal arteries (24/25 patients). A single accessory renal artery was missed by MRA. RAR was comprehensive (bilateral or unilateral to a single-functioning kidney) in 21 of 25 patients and consisted of hepatorenal bypass graft (3 patients), combined aortic and RAR (13 patients), isolated transaortic endarterectomy (8 patients), and aortorenal bypass graft (1 patient). Early improvement in both hypertension control and/or renal function was noted in 21 of 25 patients without operative deaths or postoperative renal failure. Sustained favorable functional results at follow-up, ranging from 5 months to 4 years, were noted in 19 of 25 patients. CONCLUSION: MRA is an adequate preoperative imaging modality in selected patients before RAR. This strategy is best applied in circumstances where the clinical presentation suggests hemodynamically significant bilateral RVD and/or in patients at substantial risk of complications from contrast angiography.  (+info)

Periprosthetic leak and rupture after endovascular repair of abdominal aortic aneurysm: the significance of device design for long-term results. (7/1212)

We present a case of abdominal aortic aneurysm treated with an endovascular bifurcated aortic graft in which a periprosthetic leak caused by a tear in the polyester prosthesis appeared between 9 and 12 months after surgery. The tear appeared adjacent to a suture breakage that caused separation of two struts of the nitinol wire framework in the body of the stent graft. The leak was sealed with insertion of a new endovascular tube graft into the body of the bifurcation. Eight months later, the patient had a nonfatal rupture of the abdominal aortic aneurysm because detachment of the second limb from the bifurcation caused a new major periprosthetic leak. According to the manufacturer of this device, suture breakage with separation of metal components is commonly seen, but perforation of the polyester prosthesis caused by movement of the metal stent against the fabric has not been reported. It is likely that this occurred in our patient. Detachment of the second limb from the bifurcated stent, causing a rupture, has been described before. Increasing angulation and tortuosity of the stent graft, as a result of either remodeling of the sac or elongation of the stent, and reduced compliance to angulation after the stent-in-stent procedure might have contributed to the detachment in this case.  (+info)

Realistic expectations for patients with stent-graft treatment of abdominal aortic aneurysms. Results of a European multicentre registry. (8/1212)

OBJECTIVE: the outcomes for patients after endovascular treatment of abdominal aortic aneurysm (AAA) are determined primarily by the endpoints of death and endoleaks, the latter representing continued risk of rupture. The data of a multicentre registry were analysed with regard to the early outcome of stent-graft procedures for AAA and the complications associated with this treatment. In addition, the results during follow-up were analysed by determining mortality and endoleak development as separate endpoints and as a combined endpoint defined as endoleak-free survival. SETTING: 38 European institutions of Vascular Surgery collaborating in a multicentre registry project. PATIENTS AND METHODS: 899 patients with AAA underwent between May 1994 and March 1998 elective endovascular repair (818 men and 81 women; mean age 69 years). 80 (8.9%) of the patients had medical conditions that excluded them from open repair. 818 (91%) of patients had a bifurcated device, 63 (7%) had a straight tube graft, and only 18 (2%) had an aorto-uni-iliac device. Clinical examination and contrast-enhanced computed tomography was performed at fixed follow-up intervals to assess increase or decrease of the maximum transverse diameter (MTD). Endoleaks observed at follow-up were discriminated into persistent endoleak and temporary endoleak. The latter is defined as single time observed endoleaks or with two or more negative imaging studies between observed endoleaks. Life-table analyses were used to calculate the rates of freedom-from-endoleak (no endoleak at any time), freedom-from-persistent endoleak (no persistent endoleak), patient survival, and persistent-endoleak-free-survival. RESULTS: the median follow-up of this patient series was 6.2 months. The ratio between observed and expected follow-up data was 82% for the overall follow-up period. However, at 18 months of follow-up this rate was only 45%. The number of patients followed during this period was sufficient to allow statistically meaningful assessment. The MTD in patients with temporary endoleaks demonstrated a significant decrease at 6 to 12 months compared to preoperative values (mean 57 and 53 respectively, p =0.004). In patients with persistent endoleaks there was no change between the preoperative and 6-month MTD (mean 57 and 60 mm respectively). At 6 and 18 months freedom-from-endoleak was 83% and 74% and freedom-from-persistent endoleak was 93% and 90%, respectively. The 18-month cumulative patient survival was 88% and the main outcome measure, the persistent endoleak-free-survival was 79%. CONCLUSIONS: the MTD decreases in patients with temporary endoleak, but not in patients with persistent endoleak. Therefore, the use of the rate of freedom-from-persistent endoleak, reflecting absence of persisting endoleaks to estimate the prognosis with regard to the AAA, is justified. Determining persistent endoleak-free survival appears a rational approach to provide a realistic outlook for patients with stent-grafted AAA. The observed 18-month endoleak-free survival reflects a satisfactory mid-term result.  (+info)

Luehr M, Etz CD, Mohr FW, Borger MA: Surgical management after stent-graft failure during the frozen elephant trunk technique for acute type A aortic dissection. J Thorac Cardiovasc Surg 2012;144:e106-e108. Czerny M, Bachet J, Bavaria J, Bonser RS, Borger MA, De Paulis R, DiBartolomeo R, Grabenwoeger M, Lonn L, Loubani M, Mestres CA, Schepens MA, Weigang E, Carrel TP: The future of aortic surgery in Europe. Eur J Cardiothorac Surg 2013;43:226-30.
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n demonstration of the aorta after introduction of an opaque medium, either via a catheter passed along the femoral or brachial artery or by direct translumbar injection - aortographic adj, aortogram n, aortograph n. ...
Does anyone know if this code is a replacement code for 93544? We never did the aortic root injection but do the aortography? I cant see where there
Looking for online definition of translumbar aortography in the Medical Dictionary? translumbar aortography explanation free. What is translumbar aortography? Meaning of translumbar aortography medical term. What does translumbar aortography mean?
TY - JOUR. T1 - Patologia estesa dellaorta toracica. T2 - Trattamento ibrido con la tecnica del frozen elephant trunk. AU - Di Eusanio, Marco. AU - Armaro, Alessandro. AU - Di Marco, Luca. AU - Pacini, Davide. AU - Pantaleo, Antonio. AU - Di Bartolomeo, Roberto. PY - 2011/6. Y1 - 2011/6. N2 - Background. Aneurysms of the aortic arch extending beyond the origin of the left subclavian artery represent a challenging pathology in aortic surgery and, most commonly, are treated with different surgical, endovascular or hybrid two-staged procedures. In 2006, we initiated an intense surgical program with the frozen elephant trunk procedure that, combining together conventional surgery with endovascular techniques, allows single-stage treatment of patients with extended disease of the thoracic aorta. We here describe our surgical technique and the results with the single-stage frozen elephant trunk procedure. Methods. Between January 2007 and August 2010, 87 patients were treated with the frozen elephant ...
This paper contains a brief review of the cases, published earlier, of aneurysms of the sinuses of Valsalva, and a case is reported in which the diagnosis was made before rupture of the aneurysm by means of thoracic aortography. No reports are to be found in the literature of the diagnosis of unruptured aortic sinus aneurysms and of the associated clinical findings. Roentgenograms, aortograms and catheterization findings are included.. ...
Diagnostic Abdominal Aortography and Renal Angiography-Local Coverage Determination,1. The indications for renal arteriography adapted from the American College of Radiology (1999) include the following:
Angiographies of the supra-aortic vessels by magnetic imaging have become common recently. So it was the purpose of this study to evaluate the imaging potential of different contrast agents.. Three contrast agents for magnetic resonance imaging are compared in angiographies of the supra-aortic arteries in a intraindividual study of 10 patients.. All applications of these contrast agents are performed with a flow of 2 ml/s. One contrast medium is applicated a second time with a reduced flow of 1 ml/s.. The angiographies of the supra-aortic vessels are evaluated by two experienced readers in a consensus reading. The signal/noise- and contrast/noise-ratio of anatomic vessel segments of the carotic and vertebral arteries are measured and compared to each other. ...
07/11/2019 2nd Athens Cardiovascular & Thoracic Symposium , D. Kamentsidis , Hybrid treatment of an aortic arch aneurysm in a patient with patent LIMA and RIMA grafts ...
subacqua junior snorkel: The Subacqua Junior snorkel is smaller than standard size and is intended for younger children or divers. Very comfortable for children when snorkeling and swimming on surface.
Scubapro Apnea snorkel er en fleksibel og sammenleggbar snorkel i høy kvalitet. Den har et komfortabelt bitemunnstykke og holder formen pålitelig i bruk. Fleksibiliteten i materialet gir økt komfort ved lengre tids bruk.
The Breeze Snorkel has been conceived exclusively for spearfishing. The tube is moulded in two types of materials with different hardness.
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Murata Official product details information. Here are the latest datasheet, appearance & shape, specifications, features, applications, product data of High Voltage Resistors MHR0609SA255M70.Specifications:Power Rating=0.8W,Shape=Lead,Maximum Working Voltage=1.4kVdc,Resistance=2.5MΩ,Resistance Deviation=±20%,Single Use/Mold Use=Single use,Length=10.1mm,Height H=9.0mm,Lead Pitch P=7.62mm
Looking for online definition of Amplatz aortography catheter in the Medical Dictionary? Amplatz aortography catheter explanation free. What is Amplatz aortography catheter? Meaning of Amplatz aortography catheter medical term. What does Amplatz aortography catheter mean?
I. The Electrocardiogram … A. Admissibility in Evidence of Electrocardiogram … B. Physician Cannot Testify as to Electrocardiogram without Producing It … C. Electrocardiographic Recordings and Interpreting … D. Physician Who Testifies as to Electrocardiogram Does Not Have to Have Made It … E. Value of Electrocardiogram Lies in Plurality for Purpose of Comparison … F. Clinical Correlation II. The Myelogram … A. Attending Physician May Testify as to Pathology Revealed by Myelogram … B. No Introduction in Evidence of Myelogram after Hearing or Trial … C. May Employee be Compelled to Undergo Myelogram? III. The Aortogram … A. Dangers in Aortography … B. Cause of Paraplegia following Aortogram … C. Who Performs Aortography … D. Injuries following Attempted Aortogram … E. Physicians Negligent Acts in Attempting Aortography IV. The Electroencephalogram … A. Admissibility of Electroencephalograms in Evidence … B. Retroactive Admissibility … C. Foundations Must Be Laid … D.
Pseudoaneurysm of the ascending aorta is a rare but potentially lethal complication arising after interventions involving surgical manipulation of the aorta. The classic therapeutic management strategy consists of high-risk surgical reintervention. In recent years, percutaneous treatment has emerged as an alternative to surgery. Here, we present a case of successful repair of an aortic pseudoaneurysm by percutaneous intervention.. An 81-year-old woman presented with persistent chest pain 3 weeks after surgical replacement of the aortic valve. Thoracic computed tomography revealed a pseudoaneurysm of the ascending aorta measuring 40×27 mm, with a narrow neck connected to the anterior face of the aorta (Ao) above the level of the pulmonary artery (PA) and the left main coronary artery (LMCA) (Figures 1A and B). The case was discussed in a medical-surgical session, and a decision was made to perform percutaneous closure of the pseudoaneurysm. An aortogram showed a rounded cavity connected to the ...
Traumatic aortic injury (TAI) is most often caused by blunt trauma (refered to as BTAI) and is best described in terms of injury location, type and and severity: abdominal aortic injury aortic pseudoaneurysm thoracic aortic injury minimal aor...
Patients involved in high-energy blunt trauma involving rapid deceleration are at significant risk for blunt aortic injury. The majority of blunt aortic injuries are due to motor vehicle collision. In the United States, blunt aortic injury is the sec
TY - JOUR. T1 - Treatment of a Salmonella-induced rapidly expanding aortic pseudoaneurysm involving the visceral arteries using the Cardiatis multilayer stent. AU - Reijnen, Michel M.P.J.. AU - Van Sterkenburg, Steven M.M.. PY - 2014/10/1. Y1 - 2014/10/1. N2 - Treatment of infection-induced aortic aneurysms is among the greatest challenges nowadays of vascular surgery because the use of prosthetic material is considered unsuitable. The Cardiatis multilayer stent (Cardiatis, Isnes, Belgium) is a flow-diverting bare stent with a proven efficacy in peripheral and visceral artery aneurysms. We present a unique case of a Salmonella serotype enteritidis-induced rapidly expanding aortic pseudoaneurysm with a penetrating ulcer that was treated with the Cardiatis multilayer stent. At 18 months of follow-up, the patient was in good clinical condition, with normalized C-reactive protein levels. Computed tomography angiography and 2-deoxy-2-[F18]-fluoro-d-glucose-positron-emission tomography/computed ...
The CX Aortic Edited Cases session yesterday provided the unique opportunity for the audience to interact with experts and ask questions about the cases being presented. The first session focused on thoracic aortic cases and the remainder were abdominal aortic cases.. Michael Dake (Stanford, USA) presented a case with the TAG thoracic branch endoprosthesis (Gore) which is part of a US feasibility multicentre trial that has evaluated 22 patients (mean age 74.1±10.5 years, 54.5% male) undergoing branched thoracic endovascular aortic repair (B-TEVAR) in Ishimaru zone 2.. According to Dake, the endograft features a single side branch designed to facilitate aortic coverage proximal to the left subclavian artery, while maintaining branch vessel patency. Pathology treated included fusiform (n=10) or saccular (n=12) aneurysm, with a mean aortic diameter of 5.7±1.1cm.. Reporting on the progress of the trial, he said that the primary endpoints of device delivery and branch vessel patency was achieved in ...
An improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The stent includes rings aligned along a common longitudinal axis and connected by links, where the stent has one or more portals for aligning with and partially expanding into the opening to the side branch vessel. The stent is implanted at a bifurcation so that the main stent section is in the main vessel, and the portal section covers at least a portion of the opening to the side branch vessel. A second stent can be implanted in the side branch vessel and abut the expanded central section to provide full coverage of the bifurcated area in the main vessel and the side branch vessel. Radiopaque markers on the stent and on the tip of the delivery catheter assist in aligning the portal section with the opening to the side branch vessel.
The catheter assembly includes an expandable member mounted to the distal end of a placement catheter, for delivery of a therapeutic device in one of the branch vessels of a bifurcated vessel. The catheter assembly includes lumens for a tracking guide wire and a positioning guide member for placement of the therapeutic device. The therapeutic device is mounted on the expandable member, the tracking guide wire is placed into the target branch vessel, and the placement catheter is then introduced over the tracking guide wire. A positioning guide member is introduced through the catheter, extended through an exit port in the catheter proximal to the expandable member, and then placed in another branch vessel of the bifurcation. The placement catheter then is advanced until the positioning guide member engages the vessel carina between the branch vessels, and the therapeutic device then may be placed accurately in the target branch vessel. In another form of the catheter assembly, a secondary catheter
In this video, we show in a step-by-step fashion how we could perform what is, to the best of our knowledge, the first total arch replacement with Frozen Elephant Trunk (FET) without circulatory arrest (CA) in a patient with type A acute dissection ...
The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is more than 60 days but less than or equal to 180 days. The sponsor cannot require changes to the communication and cannot extend the embargo ...
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The Cosmed AquaTrainer® snorkel, in connection with the K4b2 analyzer, is the most recent instrument used for real time gas analysis during swimming. This study aimed to test if a new AquaTrainer® snorkel with 2 (SV2) or 4 (SV4) valves is comparable to a standard face mask (Mask) being valid for rea …
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article: A case of pediatric aortic coarctation: role of imaging - Journal of Radiological Review 2021 September;8(3):260-4 - Minerva Medica - Riviste
Learn more about Aortic Coarctation -- Adult at Grand Strand Medical Center DefinitionCausesRisk FactorsSymptomsDiagnosisTreatmentPreventionrevision ...
Learn more about Aortic Coarctation -- Adult at St. Davids HealthCare DefinitionCausesRisk FactorsSymptomsDiagnosisTreatmentPreventionrevision ...
Learn more about Aortic Coarctation -- Adult at TriStar Centennial Parthenon Pavilion DefinitionCausesRisk FactorsSymptomsDiagnosisTreatmentPreventionrevision ...
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TY - JOUR. T1 - Outcome of medical and surgical treatment in patients with acute type B aortic dissection. AU - Hsu, Ron Bin. AU - Ho, Yi Lwun. AU - Chen, Robert J.. AU - Wang, Shoei Shen. AU - Lin, Fang Yue. AU - Chu, Shu Hsun. PY - 2005/1/1. Y1 - 2005/1/1. N2 - Background. Optimal treatment of acute type B aortic dissection remain unclear. The aim of this study was to assess the clinical outcome of acute type B aortic dissection. Methods. In the last 8 years, 107 patients were admitted for acute type B aortic dissection. We medically treated patients at the time of onset with antihypertensives. Surgery was considered if there is intractable pain, uncontrolled hypertension, severe aortic branch malperfusion, or aneurysm expansion. Results. Twenty-nine patients had pleural effusion (27%), 9 patients had leg ischemia (8%), 5 patients had impending rupture, and 2 patients had aneurysm enlargement exceeding 60 mm on repeated imaging studies. A total of 16 patients (15%) underwent surgical ...
TY - JOUR. T1 - Patterns of aortic remodelling after total arch replacement with frozen elephant trunk for acute aortic dissection. AU - Iida, Yasunori. AU - Fujii, Susumu. AU - Shimizu, Hideyuki. AU - Sawa, Shigeharu. PY - 2019/12/1. Y1 - 2019/12/1. N2 - OBJECTIVES: We investigated the outcomes of total arch replacement with frozen elephant trunk (FET) for Stanford type A acute aortic dissection and the patterns of postoperative aortic remodelling from computed tomographic (CT) findings. METHODS: From April 2015 to November 2018, we performed total arch replacement with FET for Stanford type A aortic dissection in 30 patients. Postoperative contrast-enhanced CT showed the position of the FET distal end, the number and the site of communications between the lumina and the presence or absence of aortic remodelling. RESULTS: Primary entry tear was found in the ascending aorta (n = 6), proximal arch (n = 6), aortic arch (n = 11) and distal arch (n = 7). The mean diameter and length of FET were 26 ...
TY - JOUR. T1 - Technical video of endovascular repair of chronic postdissection thoracoabdominal aortic aneurysm using a five-vessel preloaded fenestrated-branched stent graft. AU - Mirza, Aleem K.. AU - Tenorio, Emanuel R.. AU - Kärkkäinen, Jussi M.. AU - Ozbek, Pinar. AU - Oderich, Gustavo S.. PY - 2019/1. Y1 - 2019/1. N2 - Fenestrated-branched endovascular repair has been applied to treat chronic postdissection thoracoabdominal aortic aneurysms (TAAAs). We report a patient with diffuse postdissection aortic aneurysm involving the arch and thoracoabdominal aorta treated in a staged fashion with redo aortic arch repair using the frozen elephant trunk technique, followed by completion endovascular TAAA using preloaded guidewire system and a five-vessel fenestrated and branched stent graft. A technical video illustrates the use of onlay fusion and sequential catheterization with the preloaded guidewire system to facilitate TAAA repair.. AB - Fenestrated-branched endovascular repair has been ...
SCVS 2020 Abstracts: Single-stage Hybrid Repair Of A Thoracoabdominal Aortic Aneurysm Complicated By Chronic Type B Aortic Dissection And Kommerells Diverticulum Via Simultaneous Median Sternotomy And Laparotomy
Thoracic endovascular aneurysm repair (TEVAR) is a safe and effective procedure for the treatment of thoracic aortic aneurysms (TAAs).
Current management and outcome of chronic type B aortic dissection: results with open and endovascular repair since the advent of thoracic endografting
Current management and outcome of chronic type B aortic dissection: results with open and endovascular repair since the advent of thoracic endografting
I think I have a vague memory of this from several years ago but this was an opportunity to properly look into it.. Most of this comes from a generally poor understanding of aortic diseases. I know Ive got myself in a muddle before with thoracic aortic aneurysms and thoracic aortic dissections and occasionally confabulating with the dissecting thoracic aneurysm…. Traumatic aortic injury is somewhat similar with most folk (including myself apparently) labelling it simply as an aortic dissection when in fact it probably isnt.. Where do you see these injuries:. ...
Aortic dissection, though rare, is an often fatal event.1 A recent population-based study from Oxford showed that women have higher mortality from aortic dissection and are more likely to die before hospital assessment,2 which was also shown by the worlds largest registry of aortic dissection.3 Importantly, most individuals with aortic dissection had inadequately controlled hypertension, suggesting that modifiable risk factors may play a role in prevention.2 Moreover, women have worse outcomes following surgery for aortic dissection,3 and the surgical risk is even higher during pregnancy.4 ,5 The majority of aortic dissections in women of childbearing age occur during pregnancy and have adverse consequences for the mother and the fetus.6 Data from the Swedish National Birth Registry in women ,40 years of age have shown that pregnancy is associated with a 25-fold increased risk of aortic dissection.6 The scientific literature regarding aortic dissection and pregnancy is largely made up of case ...
Sternotomy for AVR surgery. Bilateral hilar prominence; pulmonary arteries dilatation? On the lateral view, possibility of an enormous aortic pseudoaneurysm vs enormous pulmonary trunk. Those findings werent present in previous chest x-rays, before the surgery. ...
Endovascular aneurysm repair (EVAR) is the intervention of choice to treat abdominal aortic aneurysms (AAA).1 In comparison to open surgical repair, EVAR confers a reduction of mortality lasting into the short to intermediate term.2 However, EVAR is associated with complications which sometimes require secondary interventions in order to maintain efficacy of EVAR. This has been recognised since the inception of the technique and confirmed in observational studies as well as randomised controlled trials.3-6 Therefore, periodic surveillance imaging is recommended for life following EVAR.7 8 The importance of post-EVAR surveillance remains enduring, its value further highlighted by a recently published analysis of 15-year follow-up after EVAR.2 The most common complication in EVAR surveillance is an endoleak,9 which is persistent blood flow within the aneurysm sac but outside the stent graft.10 Endoleaks are classified based on the source of blood flow,10 but can be grouped into stent graft ...
Greenhalgh spoke to the audience about innovations and challenges to innovation in collecting data. He presented insights from the European Vascular and Endovascular Monitor, a consumption-based monitor covering 200 centres from Western Europe. He said that the advantage of a monitor approach was that it was enduring and effective in rapidly-shifting markets.. From the thoracic market, data showed that thoracic endovascular aneurysm repair remains the gold standard and that the current issues in the thoracic field were the size of the aneurysm, and the perceived need for a screening programme. For carotid procedures, Greenhalgh said the data indicated open surgery as the gold standard and that endovascular procedures were focused in the German and Italian markets.. Endovascular procedures continue to grow at the expense of open surgery, Greenhalgh commented on aortic-iliac procedures and femoropopliteal, with the use of drug-eluting balloons on the increase in the latter. Hefsyv identified ...
Endovascular Aortic Repair: Current Techniques with Fenestrated, Branched and Parallel Stent-Grafts by Gustavo S. Oderich English | 9 Apr. 2017 | ISBN: 3319151
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Pena, Constantino, Aortoiliac Aneurysms with No Distal Landing Zone: Strategies for Management of the Hypogastric Artery and External Iliac Extensions (2014). All Publications. 281 ...
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Aortic dissection is a unique cardiac emergency that tests our collective understanding of vascular anatomy and pathology .It poses the ultimate challenge to the expertise and wisdom of both cardiologists, and surgeons. Its all about freezing the Time The philosophy of management swings between near-total Inaction* in some (As in most Type B & few…
Developed by renowned radiologists in each specialty, STATdx provides comprehensive decision support you can rely on - Thoracic Aortic Endografts
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An endograft delivery device assembly is disclosed. The assembly comprises: a tip; a guide wire cannula, the guide wire cannula; a pusher disposed around the guide wire cannula, the pusher having a sheath assembly receiving portion at a proximal end thereof and a main portion extending distally from the sheath assembly receiving portion to a distal end, the sheath assembly receiving portion having at least one longitudinally extending groove; and a sheath assembly slidably mounted to the sheath assembly receiving portion of the pusher. The sheath assembly has a sheath portion, mountable over a endograft, and slide connecter portion. The slide connector portion has at least one inwardly projecting key, the key keying with the groove. The sheath assembly is slidably movable from an extended position over the endograft to a retracted position in which the endograft is uncovered.
Aortic Dissection is a condition that occurs when blood gets through a tear in the inner layer of the aorta.. Treatment: Aortic dissection is a medical emergency; treatment should be started as soon as possible in the intensive care unit of a hospital. In some cases, you will be given a sedative and fast-acting IV medicine to lower high blood pressure. In other cases, you may need surgery to replace the weakened part of the aorta with a graft of man-made material.. ...
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[117 Pages Report] Check for Discount on Global Aortic Repair Devices Sales Market Report 2017 report by QYResearch Group. In this report, the global Aortic Repair Devices market is...
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Read Wall stress correlates with intimal entry tear localization in Type A aortic dissection, Interactive CardioVascular and Thoracic Surgery on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
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Learn about the causes, symptoms, diagnosis & treatment of Aneurysms and Aortic Dissection from the Home Version of the Merck Manuals.
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Learn more about Aortic Coarctation -- Adult at West Florida Hospital DefinitionCausesRisk FactorsSymptomsDiagnosisTreatmentPreventionrevision ...
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Aortic dissection is a condition in which the inner layer of the aortic wall splits open. The main situations in which an aortic...
An aortic dissection may complicate a number of conditions. Early recognition of the risk can result in prevention or an effective intervention.
Aortic Dissection - Etiology, pathophysiology, symptoms, signs, diagnosis & prognosis from the Merck Manuals - Medical Professional Version.
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The procedure is known as aortography. Previously thought to be the diagnostic gold standard, it has been supplanted by other, ... diagnosing an aortic dissection by aortography is difficult if the cause is an intramural hematoma. An aortic dissection ...
Four cases demonstrating left subclavian steal on aortography". The American Journal of Cardiology. 42 (1): 97-101. doi:10.1016 ...
Radner S. Thoracal aortography by catheterization from the radial artery; preliminary report of a new technique Acta Radiol ...
... a quantitative approach by aortography". Surgical and Radiologic Anatomy. 10 (4): 297-302. doi:10.1007/BF02107902. PMID 3145571 ...
He invented a method known as occlusive aortography in an animal model. Occlusive aortography involved the transient occlusion ... Dotter CT, Frische LH (1958). "Visualization of the coronary circulation by occlusion aortography: a practical method". ... while performing an aortic root aortography, Mason Sones, a pediatric cardiologist at the Cleveland Clinic, noted that the ...
LANCE EM, KILLEN DA, SCOTT HW (1959). "A plea for caution in the use of sodium acetrizoate (urokon) for aortography". Ann Surg ...
A specialist called on to testify helped determine that an aortography was a normal procedure under the circumstances. The ...
Aortography can also be used to visualize the origin of all head and arm vessels originating from the two arches. Double aortic ... Through a catheter in the ascending aorta contrast media is injected and the resulting aortography may be used to delineate the ... Cardiac catherization/aortography: Today patients with double aortic arch usually only undergo cardiac catherization to ...
... selective visceral arteriography and aortography, peripheral venography (phlebography) ...
Sigmoidoscopy Esophageal motility study Evoked potential Magnetoencephalography Medical imaging Angiography Aortography ...
... he performed the first aortography in Lisbon in 1929. In 1930, he became a full professor of Urology and, in 1941, of Surgical ...
... aortography MeSH E01.370.350.700.060.180 - cerebral angiography MeSH E01.370.350.700.060.190 - cineangiography MeSH E01.370. ... aortography MeSH E01.370.370.050.180 - cerebral angiography MeSH E01.370.370.050.190 - cineangiography MeSH E01.370.370.050.200 ...
... involves placement of a catheter in the aorta and injection of contrast material while taking X-rays of the aorta. ... Aortography has largely been replaced by the diagnostic tools of MRI, CT, and transesophageal echocardiography (TEE) all of ... Aortography at the US National Library of Medicine Medical Subject Headings (MeSH). ...
Röntgen discovered X-rays' medical use when he made a picture of his wife's hand on a photographic plate formed due to X-rays. The photograph of his wife's hand was the first ever photograph of a human body part using X-rays. When she saw the picture, she said, "I have seen my death."[28] The first use of X-rays under clinical conditions was by John Hall-Edwards in Birmingham, England on 11 January 1896, when he radiographed a needle stuck in the hand of an associate. On 14 February 1896, Hall-Edwards also became the first to use X-rays in a surgical operation.[29] The United States saw its first medical X-ray obtained using a discharge tube of Ivan Pulyui's design. In January 1896, on reading of Röntgen's discovery, Frank Austin of Dartmouth College tested all of the discharge tubes in the physics laboratory and found that only the Pulyui tube produced X-rays. This was a result of Pulyui's inclusion of an oblique "target" of mica, used for holding samples of fluorescent material, within the ...
... (CTLM) is the trademark of Imaging Diagnostic Systems, Inc. (IDSI, United States) for its optical tomographic technique for female breast imaging. This medical imaging technique uses laser energy in the near infrared region of the spectrum, to detect angiogenesis in the breast tissue. It is optical molecular imaging for hemoglobin both oxygenated and deoxygenated. The technology uses laser in the same way computed tomography uses X-Rays, these beams travel through tissue and suffer attenuation. A laser detector measures the intensity drop and the data is collected as the laser detector moves across the breast creating a tomography image. CTLM images show hemoglobin distribution in a tissue and can detect areas of Angiogenesis surrounding malignant tumors, that stimulate this angiogenesis to obtain nutrients for growth. ...
... is a medical technique for visualizing the interior of blood vessels. In this technique, a flexible fiberoptic catheter inserted directly into an artery.[1] It can be helpful in diagnosing e.g. arterial embolism.[1] Angioscopy is also used as an adjunctive procedure during vascular bypass to visualize valves within venous conduits. The instrument used to perform angioscopy is called as angioscope. Coronary artery angioscopy, which first was used to reveal the presence of a blood clot in the coronary arteries of patients with unstable angina and myocardial infarction,[2] is now widely used in catherization laboratories to visualize stents. ...
... or hepatobiliary scintigraphy is scintigraphy of the hepatobiliary tract, including the gallbladder and bile ducts. The image produced by this type of medical imaging, called a cholescintigram, is also known by other names depending on which radiotracer is used, such as HIDA scan, PIPIDA scan, DISIDA scan, or BrIDA scan. Cholescintigraphic scanning is a nuclear medicine procedure to evaluate the health and function of the gallbladder and biliary system. A radioactive tracer is injected through any accessible vein and then allowed to circulate to the liver, where it is excreted into the bile ducts and stored by the gallbladder[1] until released into the duodenum. In the absence of gallbladder disease, the gallbladder is visualized within 1 hour of the injection of the radioactive tracer. If the gallbladder is not visualized within 4 hours after the injection, this indicates either cholecystitis or cystic duct obstruction, such as by cholelithiasis (gallstone formation).[2] This ...
The procedure involves the insertion of a Foley catheter into the distal urethra and minimally inflating it. This is followed by instillation of 30mL of water-soluble contrast and a plain radiograph is obtained; leakage of the contrast suggests urethral injury (usually secondary to pelvic trauma) and is an indication for surgical intervention. It is used when there is suspicion of urethral trauma, such as a history of trauma to the area followed by pain, inability to void urine, or the presence of blood at the urethral meatus, a scrotal hematoma, or free-floating prostate on rectal examination. If a urethral injury is suspected, a retrograde urethrogram should be performed before attempting to place a Foley catheter into the bladder. If there is a urethral disruption, a suprapubic catheter should be placed. ...
Four types of confocal microscopes are commercially available: Confocal laser scanning microscopes use multiple mirrors (typically 2 or 3 scanning linearly along the x and the y axis) to scan the laser across the sample and "descan" the image across a fixed pinhole and detector.. Spinning-disk (Nipkow disk) confocal microscopes use a series of moving pinholes on a disc to scan spots of light. Since a series of pinholes scans an area in parallel each pinhole is allowed to hover over a specific area for a longer amount of time thereby reducing the excitation energy needed to illuminate a sample when compared to laser scanning microscopes. Decreased excitation energy reduces photo-toxicity and photo-bleaching of a sample often making it the preferred system for imaging live cells or organisms.. Microlens enhanced or dual spinning disk confocal microscopes work under the same principles as spinning-disk confocal microscopes except a second spinning disk containing micro-lenses is placed before the ...
An upper gastrointestinal series, also called an upper gastrointestinal study or contrast radiography of the upper gastrointestinal tract, is a series of radiographs used to examine the gastrointestinal tract for abnormalities. A contrast medium, usually a radiocontrast agent such as barium sulfate mixed with water, is ingested or instilled into the gastrointestinal tract, and X-rays are used to create radiographs of the regions of interest. The barium enhances the visibility of the relevant parts of the gastrointestinal tract by coating the inside wall of the tract and appearing white on the film. This in combination with other plain radiographs allows for the imaging of parts of the upper gastrointestinal tract such as the pharynx, larynx, esophagus, stomach, and small intestine such that the inside wall lining, size, shape, contour, and patency are visible to the examiner. With fluoroscopy, it is also possible to visualize the functional movement of examined organs such as swallowing, ...
The scanner platform generates a 3 D volume of the subject's head every TR. This consists of an array of voxel intensity values, one value per voxel in the scan. The voxels are arranged one after the other, unfolding the three-dimensional structure into a single line. Several such volumes from a session are joined together to form a 4 D volume corresponding to a run, for the time period the subject stayed in the scanner without adjusting head position. This 4 D volume is the starting point for analysis. The first part of that analysis is preprocessing. The first step in preprocessing is conventionally slice timing correction. The MR scanner acquires different slices within a single brain volume at different times, and hence the slices represent brain activity at different timepoints. Since this complicates later analysis, a timing correction is applied to bring all slices to the same timepoint reference. This is done by assuming the timecourse of a voxel is smooth when plotted as a dotted line. ...
Scintillography is mainly used in scintillation cameras in experimental physics. For example, huge neutrino detection underground tanks filled with tetrachloroethylene are surrounded by arrays of photo detectors in order to capture the extremely rare event of a collision between the fluid's atoms and a neutrino. Another extensive use of scintillography is in medical imaging techniques which use gamma ray detectors called gamma cameras. Detectors coated with materials which scintillate when subjected to gamma rays are scanned with optical photon detectors and scintillation counters. The subjects are injected with special radionuclides which irradiate in the gamma range inside the region of interest, such as the heart or the brain. A special type of gamma camera is the SPECT (Single Photon Emission Computed Tomography). Another medical scintillography technique, the Positron-emission tomography (PET), which uses the scintillations provoked by electron-positron annihilation phenomena. ...
The raw data collected by a PET scanner are a list of 'coincidence events' representing near-simultaneous detection (typically, within a window of 6 to 12 nanoseconds of each other) of annihilation photons by a pair of detectors. Each coincidence event represents a line in space connecting the two detectors along which the positron emission occurred (i.e., the line of response (LOR)).. Analytical techniques, much like the reconstruction of computed tomography (CT) and single-photon emission computed tomography (SPECT) data, are commonly used, although the data set collected in PET is much poorer than CT, so reconstruction techniques are more difficult. Coincidence events can be grouped into projection images, called sinograms. The sinograms are sorted by the angle of each view and tilt (for 3D images). The sinogram images are analogous to the projections captured by computed tomography (CT) scanners, and can be reconstructed in a similar way. However, the statistics of the data are much worse ...
Continuous hemofiltration (CHF) was first described in a 1977 paper by Kramer et al. as a treatment for fluid overload.[4] Hemofiltration is most commonly used in an intensive care unit setting, where it is either given as 8- to 12-hour treatments, so called SLEF (slow extended hemofiltration), or as CHF (continuous hemofiltration), also sometimes called continuous veno-venous hemofiltration (CVVH) or continuous renal replacement therapy (CRRT).[5][6] Hemodiafiltration (SLED-F or CHDF or CVVHDF) also is widely used in this fashion. In the United States, the substitution fluid used in CHF or CHDF is commercially prepared, prepackaged, and sterile (or sometimes is prepared in the local hospital pharmacy), avoiding regulatory issues of on-line creation of replacement fluid from dialysis solution. With slow continuous therapies, the blood flow rates are usually in the range of 100-200 ml/min, and access is usually achieved through a central venous catheter placed in one of the large central veins. ...
The radiation used in CT scans can damage body cells, including DNA molecules, which can lead to cancer.[12] According to the National Council on Radiation Protection and Measurements, between the 1980s and 2006, the use of CT scans has increased sixfold (+500%). The radiation doses received from CT scans is variable. Compared to the lowest dose x-ray techniques, CT scans can have 100 to 1,000 times higher dose than conventional X-rays.[45] However, a lumbar spine x-ray has a similar dose as a head CT.[46] Articles in the media often exaggerate the relative dose of CT by comparing the lowest-dose x-ray techniques (chest x-ray) with the highest-dose CT techniques. In general, the radiation dose associated with a routine abdominal CT has a radiation dose similar to 3 years average background radiation (from cosmic radiation).[47] Some experts note that CT scans are known to be "overused," and "there is distressingly little evidence of better health outcomes associated with the current high rate of ...
The WHO committee did not have enough data to create definitions for men or other ethnic groups.[5] Special considerations are involved in the use of DXA to assess bone mass in children. Specifically, comparing the bone mineral density of children to the reference data of adults (to calculate a T-score) will underestimate the BMD of children, because children have less bone mass than fully developed adults. This would lead to an over-diagnosis of osteopenia for children. To avoid an overestimation of bone mineral deficits, BMD scores are commonly compared to reference data for the same gender and age (by calculating a Z-score). Also, there are other variables in addition to age that are suggested to confound the interpretation of BMD as measured by DXA. One important confounding variable is bone size. DXA has been shown to overestimate the bone mineral density of taller subjects and underestimate the bone mineral density of smaller subjects. This error is due to the way by which DXA calculates ...
After completion of surgery, the patient is transferred to the post anesthesia care unit and closely monitored. When the patient is judged to have recovered from the anesthesia, he/she is either transferred to a surgical ward elsewhere in the hospital or discharged home. During the post-operative period, the patient's general function is assessed, the outcome of the procedure is assessed, and the surgical site is checked for signs of infection. There are several risk factors associated with postoperative complications, such as immune deficiency and obesity. Obesity has long been considered a risk factor for adverse post-surgical outcomes. It has been linked to many disorders such as obesity hypoventilation syndrome, atelectasis and pulmonary embolism, adverse cardiovascular effects, and wound healing complications.[11] If removable skin closures are used, they are removed after 7 to 10 days post-operatively, or after healing of the incision is well under way. It is not uncommon for surgical ...
For flexible tomographic reconstruction, open source toolboxes are available, such as TomoPy[5], ODL or the ASTRA toolbox.[6][7] TomoPy is an open-source Python toolbox to perform tomographic data processing and image reconstruction tasks at the Advanced Photon Source at Argonne National Laboratory. TomoPy toolbox is specifically designed to be easy to use and deploy at a synchrotron facility beamline. It supports reading many common synchrotron data formats from disk through Scientific Data Exchange,[8] and includes several other processing algorithms commonly used for synchrotron data. TomoPy also includes several reconstruction algorithms, which can be run on multi-core workstations and large-scale computing facilities.[9] The ASTRA Toolbox is a MATLAB toolbox of high-performance GPU primitives for 2D and 3D tomography, from 2009-2014 developed by iMinds-Vision Lab, University of Antwerp and since 2014 jointly developed by iMinds-VisionLab, UAntwerpen and CWI, Amsterdam. The toolbox supports ...
In the average person, the diaphragm should be intersected by the 5th to 7th anterior ribs at the mid-clavicular line, and 9 to 10 posterior ribs should be viewable on a normal PA inspiratory film. An increase in the number of viewable ribs implies hyperinflation, as can occur, for example, with obstructive lung disease or foreign body aspiration. A decrease implies hypoventilation, as can occur with restrictive lung disease, pleural effusions or atelectasis. Underexpansion can also cause interstitial markings due to parenchymal crowding, which can mimic the appearance of interstitial lung disease. Enlargement of the right descending pulmonary artery can indirectly reflect changes of pulmonary hypertension, with a size greater than 16 mm abnormal in men and 15 mm in women.[6] Appropriate penetration of the film can be assessed by faint visualization of the thoracic spines and lung markings behind the heart. The right diaphragm is usually higher than the left, with the liver being situated ...
Translumbar Aortography. Br Med J 1957; 1 doi: https://doi.org/10.1136/bmj.1.5017.518-b (Published 02 March 1957) Cite this as ...
Aortography involves placement of a catheter in the aorta and injection of contrast material while taking X-rays of the aorta. ... Aortography has largely been replaced by the diagnostic tools of MRI, CT, and transesophageal echocardiography (TEE) all of ... Aortography at the US National Library of Medicine Medical Subject Headings (MeSH). ...
abdominal aortogram, Abdominal aortogram, Abdominal aortography, Abdominal aortogram (procedure). Spanish. aortografía ... Abdominal Aortography, Angiography in AAA, AAA Angiogram. ... Aka: Abdominal Aortography, Angiography in AAA, AAA Angiogram * ...
translumbar aortography synonyms, translumbar aortography pronunciation, translumbar aortography translation, English ... dictionary definition of translumbar aortography. n. Examination of the aorta using x-rays following the injection of a ... aortography. (redirected from translumbar aortography). Also found in: Medical, Encyclopedia. a·or·tog·ra·phy. (ā′ôr-tŏg′rə-fē) ... aortography. (ˌeɪɔːˈtɒɡrəfɪ) n, pl -phies. an X-ray examination of the aorta ...
Compare risks and benefits of common medications used for Aortography. Find the most popular drugs, view ratings, user reviews ... Medications for Aortography. *Medication List. About Aortography: Aortography is radiographic imaging of the aorta and its ... Drugs Used for Aortography. The following list of medications are in some way related to, or used in the treatment of this ...
Congenital Aneurysm of the Right Sinus of Valsalva, Diagnosed by Aortography. WALTHER FALHOLT, GREGERS THOMSEN ... and a case is reported in which the diagnosis was made before rupture of the aneurysm by means of thoracic aortography. No ...
What is Amplatz aortography catheter? Meaning of Amplatz aortography catheter medical term. What does Amplatz aortography ... Looking for online definition of Amplatz aortography catheter in the Medical Dictionary? Amplatz aortography catheter ... redirected from Amplatz aortography catheter) Amplatz, Kurt, 20th century U.S. cardiologist. Amplatz angiography needle ... Amplatz aortography catheter , definition of Amplatz aortography catheter by Medical dictionary https://medical-dictionary. ...
What is translumbar aortography? Meaning of translumbar aortography medical term. What does translumbar aortography mean? ... Looking for online definition of translumbar aortography in the Medical Dictionary? translumbar aortography explanation free. ... translumbar aortography. Also found in: Dictionary, Encyclopedia. trans·lum·bar a·or·tog·ra·phy. early method of aortography by ... translumbar aortography. Aortography by injection of a contrast medium into the abdominal aorta through a needle inserted into ...
A method of lumbar aortography is descriptionbed for use in the investigation of obliterative arterial disease affecting the ... Keyword(s) : Aortography, Obliterative vascular disease and Standardized technique * Accreditation : Department of Higher ... A method of lumbar aortography is descriptionbed for use in the investigation of obliterative arterial disease affecting the ... oa South African Medical Journal - Aortography: a standardized technique for the investigation of obliterative vascular disease ...
Aortography) can be found listed below. Find a cost comparison to other providers in Louisville-Jefferson County (balance), KY ... View a Aorta X-Ray (Aortography) cost comparison for Louisville and Request a Free Quote before you make a decision. ... Norton Hospital - Aorta X-Ray (Aortography) Price Range. 200 East Chestnut Street Louisville, KY 40202. www.nortonhealthcare. ... About Aorta X-Ray (Aortography) at Norton Hospital. Norton Hospital is committed to providing outstanding patient care in the ...
Aortography) can be found listed below. Find a cost comparison to other providers in New York, NY and see your potential ... Syosset Radiology - Aorta X-Ray (Aortography) Price Range. 221 Jericho Tpke Syosset, NY 11791. Work here? Claim your profile. ... View a Aorta X-Ray (Aortography) cost comparison for Syosset and Request a Free Quote before you make a decision. ... About Aorta X-Ray (Aortography) at Syosset Radiology. Syosset Radiology is committed to providing outstanding patient care in ...
... by contrast aortography and in 8% by TTE. Implantation depth was not correlated with PVL by contrast aortography or TTE (p = ... angiography, aortic stenosis, contrast aortography, transcatheter aortic valve replacement Persistent URL. dx.doi.org/10.1016/j ... Importance of Contrast Aortography With Lotus Transcatheter Aortic Valve Replacement: A Post Hoc Analysis From the RESPOND Post ... A secondary analysis compared PVL analysis by contrast aortography with transthoracic echocardiography (TTE) performed by the ...
... thoracic aortography techniques, intravascular ultrasound, and special equipment. by Rodney A. White et al. ... Intraprocedural imaging: thoracic aortography techniques, intravascular ultrasound, and special equipment.. @article{ ... White2006IntraproceduralIT, title={Intraprocedural imaging: thoracic aortography techniques, intravascular ultrasound, and ...
Find out information about aortography. Radiography of the aorta through a radiopaque dye injection Explanation of aortography ... aortography. Also found in: Dictionary, Medical.. Related to aortography: angiography, translumbar aortography aortography. [‚ā ... Aortography , Article about aortography by The Free Dictionary https://encyclopedia2.thefreedictionary.com/aortography ... An aortography was done in order to detect whether there is a Cx artery or not.. Combined congenital coronary artery anomaly: ...
A volume-rendered hemorrhage-responsible arteriogram created with 64 multidetector-row CT (64MDCT) during aortography (MDCTAo) ... Aortography for detecting hemorrhage is limited when determining the catheter treatment strategy because the artery responsible ... MDCT during thoracic aortography (MDCT-TA) for thoracic arterial bleeding. We developed a scanning protocol for MDCT-TA for ... MDCT during abdominal aortography (MDCT-AA) for abdominal arterial bleeding. The protocol used for MDCT-AA follows that for ...
... by contrast aortography and in 8% by TTE. Implantation depth was not correlated with PVL by contrast aortography or TTE (p= ... Contrast aortography allows for the assessment of implantation depth, relationship to the coronary ostia and paravalvular leak ... TCT-305 Importance of Contrast Aortography with Lotus transcatheter aortic valve replacement - a post hoc analysis from the ... TCT-305 Importance of Contrast Aortography with Lotus transcatheter aortic valve replacement - a post hoc analysis from the ...
This is true of translumbar aortography, although it was described by Dos Santos before the Surgical Society of Paris in 1929.1 ... aortography has been found to be of equal or even greater value in the diagnosis of vascular pathology involving the abdominal ... 3The original application of aortography was chiefly in the field of urology to differentiate between various types of renal ... and complete or partial occlusion may now be confirmed or excluded by this means.The technic of translumbar aortography has ...
This is the first known case of hypertensive response to CO2 aortography in a patient with unsuspected functioning ... Cite this paper: Patel, N. and Cho, K. (2015) Transient Hypertensive Response to CO2 Aortography in a Patient with ... This is the first known case of hypertensive response to CO2 aortography in a patient with unsuspected functioning ...
Aortography. n demonstration of the aorta after introduction of an opaque medium, either via a catheter passed along the ...
In aortography , the risks of procedures include injury to the aorta and neighboring organs, pleural puncture, renal damage ... Aortography: Repeated intra-aortic injections may be hazardous.. Pediatric angiocardiography: Repeated injections may be ... Aortography. RenoCal-76 injected into the aorta by the translumbar or retrograde method of administration, permits radiographic ... RenoCal-76 is indicated in excretion urography, nephrotomography, aortography, pediatric angiocardiography, peripheral ...
Aortography. Aortography has been the diagnostic criterion standard study for aortic dissection, but it is difficult to perform ... Aortography (see the image below) leads to accurate diagnosis of aortic dissection in over 95% of patients and aids the surgeon ... Aortography is still considered by some as the diagnostic criterion standard test for aortic dissection. However, it is being ... Aortography is being replaced by newer imaging modalities because of risks associated with invasiveness and adverse reactions ...
Retrograde thoracic aortography is a safe, simple method of opacifying and recording roentgenographically the thoracic aorta ... Retrograde thoracic aortography is a safe, simple method of opacifying and recording roentgenographically the thoracic aorta ... Retrograde Thoracic Aortography. JAMA. 1967;200(9):785-787. doi:10.1001/jama.1967.03120220087017 ...
During aortography, performed in a hospital, youll be mildly sedated while your doctor threads a catheter from your groin or ...
CT AORTOGRAPHY / AORTIC ANGIO) diagnostic test in India ... CT Scan ( AORTOGRAPHY / AORTIC ANGIO ). CT Scan or Computed ... cost of CT Scan (CT AORTOGRAPHY / AORTIC ANGIO). ...
Abdominal Aortography with Lower Extremity Runoff: Did the catheter move?. Posted May 3, 2019. January 13, 2020. NDuea ... CPT® code 75630 describes abdominal aortography with bilateral iliofemoral runoff from this single high catheter position. ...
5. Abdominal aortography and/or renal arteriography may be indicated for those patients having mid-abdominal bruits or known/ ... 4. Abdominal aortography and/or renal arteriography may be indicated for those patients with known/suspected aneurysm, ... 9. Aortography (from ACR Guideline: Quality Improvement Guidelines for Diagnostic Arteriography, September 2003):. Intrinsic ...
Angiography - aorta; Aortography; Abdominal aorta angiogram; Aortic arteriogram; Aneurysm - aortic arteriogram. Patient ...
Renal Extraction of PAH in Man Following Abdominal Aortography. Davidson, A. J.; Abrams, H. L.; Stamey, T. A. ...
... abdominal aortography; contrast arteriography; magnetic resonance imaging (i.e., MRI); and echocardiography. The images gained ...
  • 2002 ]). Hepatoma-feeding arteriograms that were created by MDCT during aortography (MDCTAo) were previously reported to be displayed on the monitor in the angiography room and used for catheterization of feeding arteries to a HCC (Minamiguchi et al. (springeropen.com)
  • Coronary angiography and aortography was pursued to evaluate for coronary artery disease and COA. (aafp.org)
  • Aortography involves placement of a catheter in the aorta and injection of contrast material while taking X-rays of the aorta. (wikipedia.org)
  • Aortography for detecting hemorrhage is limited when determining the catheter treatment strategy because the artery responsible for hemorrhage commonly overlaps organs and non-responsible arteries. (springeropen.com)
  • A volume-rendered hemorrhage-responsible arteriogram created with 64 multidetector-row CT (64MDCT) during aortography (MDCTAo) can be used both for hemorrhage mapping and catheter navigation. (springeropen.com)
  • During aortography, performed in a hospital, you'll be mildly sedated while your doctor threads a catheter from your groin or arm into the aorta. (sutterhealth.org)
  • Abdominal Aortography with Lower Extremity Runoff: Did the catheter move? (medlearnmedia.com)
  • CPT® code 75630 describes abdominal aortography with bilateral iliofemoral runoff from this single high catheter position . (medlearnmedia.com)
  • For example, physician places a catheter in the abdominal aorta near the renal arteries and performs abdominal aortography, also documents bilateral pelvic and common femoral artery imaging. (zhealthpublishing.com)
  • This paper contains a brief review of the cases, published earlier, of aneurysms of the sinuses of Valsalva, and a case is reported in which the diagnosis was made before rupture of the aneurysm by means of thoracic aortography. (ahajournals.org)
  • Intraprocedural imaging: thoracic aortography techniques, intravascular ultrasound, and special equipment. (semanticscholar.org)
  • Retrograde thoracic aortography is a safe, simple method of opacifying and recording roentgenographically the thoracic aorta and its branches for the purpose of studying diseases intrinsic to these great vessels as well as those structures adjacent to their course. (jamanetwork.com)
  • Similarly, aortography used to be the only way to diagnose Thoracic Aortic Dissections, and that's a very invasive screening test for a very uncommon diagnosis. (medpagetoday.com)
  • Translumbar aortography was extensively used as a diagnostic procedure until the 80's. (thefreedictionary.com)
  • This is true of translumbar aortography, although it was described by Dos Santos before the Surgical Society of Paris in 1929. (mdedge.com)
  • The technic of translumbar aortography has been adequately described in the literature. (mdedge.com)
  • A secondary analysis compared PVL analysis by contrast aortography with transthoracic echocardiography (TTE) performed by the independent core laboratory. (eur.nl)
  • The smooth muscle myosin heavy-chain assay has greater sensitivity and specificity than transthoracic echocardiography (TTE), CT, and aortography, but it has less sensitivity and specificity than transesophageal echocardiography (TEE), MRI, and helical CT. (medscape.com)
  • Aortography has largely been replaced by the diagnostic tools of MRI, CT, and transesophageal echocardiography (TEE) all of which have high sensitivities. (wikipedia.org)
  • This may include contrast computed tomography (CT), transoesophageal echocardiography and definitive arch aortography. (bmj.com)
  • Norton Hospital is committed to providing outstanding patient care in the Louisville, KY area, but before you commit to Norton Hospital for a Aorta X-Ray (Aortography) make sure you compare and shop other medical facilities. (newchoicehealth.com)
  • View a Aorta X-Ray (Aortography) cost comparison for Louisville and Request a Free Quote before you make a decision. (newchoicehealth.com)
  • Both our patients had severe aortic stenosis and were regarded as high anaesthetic risk for sudden death, therefore CT aortography was chosen as the modality of choice. (thefreedictionary.com)
  • Aortography showed severe aortic stenosis and aortic regurgitation as well as high output recurrent PDA (Figure 2). (ispub.com)
  • 4. Abdominal aortography and/or renal arteriography may be indicated for those patients with known/suspected aneurysm, dissection, or trauma involving the abdominal aorta, the renal arteries, other visceral arteries, and/or the iliac arteries. (radiologybillingcoding.com)
  • 5. Abdominal aortography and/or renal arteriography may be indicated for those patients having mid-abdominal bruits or known/suspected vascular diseases of the abdominal aorta, the renal arteries, other visceral arteries, and/or the iliac arteries. (radiologybillingcoding.com)
  • Aortography is radiographic imaging of the aorta and its branches, or a portion of the aorta, by injection of contrast medium. (drugs.com)
  • early method of aortography by injection into the abdominal aorta through a needle just below the twelfth rib and four fingerbreadths to the left of the spinous process of the vertebra. (thefreedictionary.com)
  • Aortography by injection of a contrast medium into the abdominal aorta through a needle inserted into the lumbar area near the level of the 12th rib. (thefreedictionary.com)
  • Objectives: To evaluate the in vivo feasibility of aortography with one accurately timed diastolic low-volume contrast injection for quantitative assessment of aortic regurgitation (AR) post transcatheter aortic valve replacement (TAVR). (eur.nl)
  • More than 40% of patients who undergo aortography for aortoiliac disease have this disorder. (annals.org)
  • 36) Furthermore, 33% of patients having abdominal aortography for either peripheral vascular disease or aortic aneurysm were found to have clinically unsuspected RAS. (thefreedictionary.com)
  • Contrast aortography allows for the assessment of implantation depth, relationship to the coronary ostia and paravalvular leak (PVL) during and after transcatheter aortic valve replacement (TAVR). (onlinejacc.org)
  • Aortography was the study that established the diagnosis in most cases reported before the development and widespread use of newer imaging methods. (thefreedictionary.com)
  • In recent years, aortography has been found to be of equal or even greater value in the diagnosis of vascular pathology involving the abdominal aorta and its immediate branches. (mdedge.com)
  • The diagnosis is confirmed by aortography. (nih.gov)
  • The diagnosis was established by aortography. (ebscohost.com)
  • Aortography is still considered by some as the diagnostic criterion standard test for aortic dissection. (medscape.com)
  • An aortography was done in order to detect whether there is a Cx artery or not. (thefreedictionary.com)
  • Aortography was introduced via transbrachial artery. (koreamed.org)
  • Because of difficulty in selectively cannulating the left subclavian artery, aortography was performed. (bmj.com)
  • We report a case of a 51-year-old woman who developed ischemic colitis following aortography, demonstrating that such angiographic studies may produce substantial morbidity. (hofstra.edu)
  • Ductal diameter and length were measured by aortography at left lateral position. (thefreedictionary.com)
  • As our studies have shown, this can improve opacification of the renal arteries and abdominal aorta during flush abdominal aortography procedures," said Hobbs. (thefreedictionary.com)
  • Comparative study of ultrasound, 131I-19-iodocholesterol scintigraphy, and aortography in localising adrenal lesions. (bmj.com)
  • Acute mesenteric ischemia: a sequela of abdominal aortography" by S. Kedia, V. R. Bhatt et al. (hofstra.edu)
  • The original application of aortography was chiefly in the field of urology to differentiate between various types of renal lesions. (mdedge.com)
  • A method of lumbar aortography is descriptionbed for use in the investigation of obliterative arterial disease affecting the lower extremities. (journals.co.za)
  • Disease activity, aortography and mycetoma showed a statistically significant correlation with recurrence rate. (ingentaconnect.com)
  • Background Contrast aortography allows for the assessment of implantation depth and PVL during and after TAVR. (eur.nl)
  • Background: With the rise of a minimalistic approach for TAVR, aortography (re)emerges as a pragmatic tool for AR assessment. (eur.nl)
  • On ventriculography, small ventricular septal defect was detected and aortography revealed large PDA (Video 1-2. (thefreedictionary.com)