Angioscopy: Endoscopic examination, therapy or surgery performed on the interior of blood vessels.Angioscopes: Endoscopes used for viewing the interior of blood vessels.Coronary Thrombosis: Coagulation of blood in any of the CORONARY VESSELS. The presence of a blood clot (THROMBUS) often leads to MYOCARDIAL INFARCTION.Coronary Vessels: The veins and arteries of the HEART.Plaque, Atherosclerotic: Lesions formed within the walls of ARTERIES.Angioplasty, Balloon, Laser-Assisted: Techniques using laser energy in combination with a balloon catheter to perform angioplasty. These procedures can take several forms including: 1, laser fiber delivering the energy while the inflated balloon centers the fiber and occludes the blood flow; 2, balloon angioplasty immediately following laser angioplasty; or 3, laser energy transmitted through angioplasty balloons that contain an internal fiber.Ultrasonography, Interventional: The use of ultrasound to guide minimally invasive surgical procedures such as needle ASPIRATION BIOPSY; DRAINAGE; etc. Its widest application is intravascular ultrasound imaging but it is useful also in urology and intra-abdominal conditions.Endoscopes: Instruments for the visual examination of interior structures of the body. There are rigid endoscopes and flexible fiberoptic endoscopes for various types of viewing in ENDOSCOPY.Coronary Angiography: Radiography of the vascular system of the heart muscle after injection of a contrast medium.Saphenous Vein: The vein which drains the foot and leg.Coronary Artery Disease: Pathological processes of CORONARY ARTERIES that may derive from a congenital abnormality, atherosclerotic, or non-atherosclerotic cause.Calcium Sulfate: A calcium salt that is used for a variety of purposes including: building materials, as a desiccant, in dentistry as an impression material, cast, or die, and in medicine for immobilizing casts and as a tablet excipient. It exists in various forms and states of hydration. Plaster of Paris is a mixture of powdered and heat-treated gypsum.Atherectomy: Endovascular procedure in which atheromatous plaque is excised by a cutting or rotating catheter. It differs from balloon and laser angioplasty procedures which enlarge vessels by dilation but frequently do not remove much plaque. If the plaque is removed by surgical excision under general anesthesia rather than by an endovascular procedure through a catheter, it is called ENDARTERECTOMY.Drug Delivery Systems: Systems for the delivery of drugs to target sites of pharmacological actions. Technologies employed include those concerning drug preparation, route of administration, site targeting, metabolism, and toxicity.Atherectomy, Coronary: Percutaneous transluminal procedure for removing atheromatous plaque from the coronary arteries. Both directional (for removing focal atheromas) and rotational (for removing concentric atheromatous plaque) atherectomy devices have been used.Radiology Information Systems: Information systems, usually computer-assisted, designed to store, manipulate, and retrieve information for planning, organizing, directing, and controlling administrative activities associated with the provision and utilization of radiology services and facilities.Kinesis: Locomotor behavior not involving a steering reaction, but in which there may be a turning random in direction. It includes orthokinesis, the rate of movement and klinokinesis, the amount of turning, which are related to the intensity of stimulation.Quercetin: A flavonol widely distributed in plants. It is an antioxidant, like many other phenolic heterocyclic compounds. Glycosylated forms include RUTIN and quercetrin.Puerto Rico: An island in the Greater Antilles in the West Indies. Its capital is San Juan. It is a self-governing commonwealth in union with the United States. It was discovered by Columbus in 1493 but no colonization was attempted until 1508. It belonged to Spain until ceded to the United States in 1898. It became a commonwealth with autonomy in internal affairs in 1952. Columbus named the island San Juan for St. John's Day, the Monday he arrived, and the bay Puerto Rico, rich harbor. The island became Puerto Rico officially in 1932. (From Webster's New Geographical Dictionary, 1988, p987 & Room, Brewer's Dictionary of Names, 1992, p436)X-Ray Absorption Spectroscopy: Analysis of the energy absorbed across a spectrum of x-ray energies/wavelengths to determine the chemical structure and electronic states of the absorbing medium.Teleradiology: The electronic transmission of radiological images from one location to another for the purposes of interpretation and/or consultation. Users in different locations may simultaneously view images with greater access to secondary consultations and improved continuing education. (From American College of Radiology, ACR Standard for Teleradiology, 1994, p3)Computer Communication Networks: A system containing any combination of computers, computer terminals, printers, audio or visual display devices, or telephones interconnected by telecommunications equipment or cables: used to transmit or receive information. (Random House Unabridged Dictionary, 2d ed)Mitral Valve: The valve between the left atrium and left ventricle of the heart.Mitral Valve Annuloplasty: A type of heart valve surgery that involves the repair, replacement, or reconstruction of the annulus of the MITRAL VALVE. It includes shortening the circumference of the annulus to improve valve closing capacity and reinforcing the annulus as a step in more complex valve repairs.Mitral Valve Insufficiency: Backflow of blood from the LEFT VENTRICLE into the LEFT ATRIUM due to imperfect closure of the MITRAL VALVE. This can lead to mitral valve regurgitation.Aortic Valve: The valve between the left ventricle and the ascending aorta which prevents backflow into the left ventricle.Diaphragmatic Eventration: A congenital abnormality characterized by the elevation of the DIAPHRAGM dome. It is the result of a thinned diaphragmatic muscle and injured PHRENIC NERVE, allowing the intra-abdominal viscera to push the diaphragm upward against the LUNG.Illusions: The misinterpretation of a real external, sensory experience.Suture Techniques: Techniques for securing together the edges of a wound, with loops of thread or similar materials (SUTURES).Chills: The sudden sensation of being cold. It may be accompanied by SHIVERING.Spectrophotometry, Atomic: Spectrophotometric techniques by which the absorption or emmision spectra of radiation from atoms are produced and analyzed.Atmosphere Exposure Chambers: Experimental devices used in inhalation studies in which a person or animal is either partially or completely immersed in a chemically controlled atmosphere.Extracorporeal Circulation: Diversion of blood flow through a circuit located outside the body but continuous with the bodily circulation.Oxygen: An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Fluoroscopy: Production of an image when x-rays strike a fluorescent screen.Hospital Communication Systems: The transmission of messages to staff and patients within a hospital.Catheters, Indwelling: Catheters designed to be left within an organ or passage for an extended period of time.Radiography: Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film).Radiography, Interventional: Diagnostic and therapeutic procedures that are invasive or surgical in nature, and require the expertise of a specially trained radiologist. In general, they are more invasive than diagnostic imaging but less invasive than major surgery. They often involve catheterization, fluoroscopy, or computed tomography. Some examples include percutaneous transhepatic cholangiography, percutaneous transthoracic biopsy, balloon angioplasty, and arterial embolization.Catheters: A flexible, tubular device that is used to carry fluids into or from a blood vessel, hollow organ, or body cavity.Models, Biological: Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.Computer Simulation: Computer-based representation of physical systems and phenomena such as chemical processes.High-Intensity Focused Ultrasound Ablation: The use of focused, high-frequency sound waves to destroy tissue. It is sometimes used in conjunction with but is distinct from INTERVENTIONAL ULTRASONOGRAPHY.Ultrasonic Therapy: The use of focused, high-frequency sound waves to produce local hyperthermia in certain diseased or injured parts of the body or to destroy the diseased tissue.Equipment Design: Methods of creating machines and devices.Ultrasonography: The visualization of deep structures of the body by recording the reflections or echoes of ultrasonic pulses directed into the tissues. Use of ultrasound for imaging or diagnostic purposes employs frequencies ranging from 1.6 to 10 megahertz.Transducers: Any device or element which converts an input signal into an output signal of a different form. Examples include the microphone, phonographic pickup, loudspeaker, barometer, photoelectric cell, automobile horn, doorbell, and underwater sound transducer. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)Cell Polarity: Orientation of intracellular structures especially with respect to the apical and basolateral domains of the plasma membrane. Polarized cells must direct proteins from the Golgi apparatus to the appropriate domain since tight junctions prevent proteins from diffusing between the two domains.Angioplasty, Balloon: Use of a balloon catheter for dilation of an occluded artery. It is used in treatment of arterial occlusive diseases, including renal artery stenosis and arterial occlusions in the leg. For the specific technique of BALLOON DILATION in coronary arteries, ANGIOPLASTY, BALLOON, CORONARY is available.Angioplasty, Balloon, Coronary: Dilation of an occluded coronary artery (or arteries) by means of a balloon catheter to restore myocardial blood supply.Angioplasty: Reconstruction or repair of a blood vessel, which includes the widening of a pathological narrowing of an artery or vein by the removal of atheromatous plaque material and/or the endothelial lining as well, or by dilatation (BALLOON ANGIOPLASTY) to compress an ATHEROMA. Except for ENDARTERECTOMY, usually these procedures are performed via catheterization as minimally invasive ENDOVASCULAR PROCEDURES.Coated Materials, Biocompatible: Biocompatible materials usually used in dental and bone implants that enhance biologic fixation, thereby increasing the bond strength between the coated material and bone, and minimize possible biological effects that may result from the implant itself.Treatment Outcome: Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.Vascular Access Devices: Devices to be inserted into veins or arteries for the purpose of carrying fluids into or from a peripheral or central vascular location. They may include component parts such as catheters, ports, reservoirs, and valves. They may be left in place temporarily for therapeutic or diagnostic purposes.
A policy of quality control assessment helps to reduce the risk of intraoperative stroke during carotid endarterectomy. (1/180)
OBJECTIVES: A pilot study in our unit suggested that a combination of transcranial Doppler (TCD) plus completion angioscopy reduced incidence of intra-operative stroke (i.e. patients recovering from anaesthesia with a new deficit) during carotid endarterectomy (CEA). The aim of the current study was to see whether routine implementation of this policy was both feasible and associated with a continued reduction in the rate of intraoperative stroke (IOS). MATERIALS AND METHODS: Prospective study in 252 consecutive patients undergoing carotid endarterectomy between March 1995 and December 1996. RESULTS: Continuous TCD monitoring was possible in 229 patients (91%), while 238 patients (94%) underwent angioscopic examination. Overall, angioscopy identified an intimal flap requiring correction in six patients (2.5%), whilst intraluminal thrombus was removed in a further six patients (2.5%). No patient in this series recovered from anaesthesia with an IOS, but the rate of postoperative stroke was 2.8%. CONCLUSIONS: Our policy of TCD plus angioscopy has continued to contribute towards a sustained reduction in the risk of IOS following CEA, but requires access to reliable equipment and technical support. However, a policy of intraoperative quality control assessment may not necessarily alter the rate of postoperative stroke. (+info)Intraoperative assessment of technical perfection in carotid endarterectomy: a prospective analysis of 1305 completion procedures. Collaborators of the EVEREST study group. Eversion versus standard carotid endartectomy. (2/180)
OBJECTIVE: to define the incidence of technical defects and the impact of technical errors on ipsilateral carotid occlusion, ipsilateral stroke, and early restenosis rates, we analysed 1305 patients undergoing carotid completion procedures. DESIGN: prospective multicentre study. PATIENTS AND METHODS: adequacy of CEA was assessed intraoperatively by angiography in 1004 (77%), by angioscopy in 299 (22%), and by duplex scan in two patients (1%). Arteriograms and angioscopic findings were interpreted at the time of the procedure by the operating surgeon, who also established the need for immediate surgical revision. RESULTS: perioperatively, 13 major strokes (0.9%, all ipsilateral) and six deaths (0.4%) were recorded. Overall, 112 defects (9%) were identified intraoperatively: 81 (72%) were located in the common carotid artery (CCA) or internal carotid artery (ICA), and 31 (28%) in the external carotid artery. In 48 patients (4%) the defects were revised. Logistic regression analysis revealed that carotid plaque extension >2 cm on the ICA was a positive independent predictor of CEA defects (odds ratio (OR) 1.5p=0.03). A significant association was found between the incidence of revised defects of the CCA and ICA and perioperative ipsilateral stroke (OR 11.5p=0.0002). In contrast, patients with minor non-revised defects had an ipsilateral stroke rate comparable to that of patients with no defects (p=0.4). No significant association was found between revised or non-revised defects and occurrence of restenosis/occlusion at 6-month follow-up. CONCLUSIONS: the incidence of major technical defects during CEA is low, yet the perioperative neurological prognosis of patients with major defects warranting revision is poor. Completion angiography or angioscopy and possible correction of defects did not protect per se from an unfavourable early outcome after CEA. Therefore, surgical excellence is mandatory to achieve satisfactory results after CEA. (+info)Valvulotomy of non-reversed saphenous vein bypass grafts: a randomised, blinded, angioscopy-controlled study. (3/180)
OBJECTIVES: to compare the result of vein valve disruption with two different valvulotomes during non-reversed saphenous vein bypass. DESIGN: a randomised, blinded clinical study. MATERIALS AND METHODS: twenty patients undergoing femorodistal non-reversed saphenous vein arterial bypass were randomised into two equal groups. Valve leaflet disruption was performed either with a standard size plastic valvulotome or with a metal valvulotome with an exchangeable cutting head. Valvulotomy was done after full exposure of the vein and completion of the proximal anastomosis. The result was evaluated by a surgeon blinded to the valvulotome used, using angioscopy. RESULTS: a total of 219 valve cusps were inspected with angioscopy. There were 83 completely lysed cusps (69%) by plastic and 76 (78%) by metallic valvulotomes (p=0.14). Of all the incompletely lysed cusps 12 (29%) occurred in the most proximal valve pocket treated with valvulotomy. CONCLUSIONS: no significant difference in performance between the investigated valvulotomes was found. Incomplete valvulotomy occurred mainly in the proximal part of the vein and was obviously caused by a size mismatch between the diameter of vein and the valvulotome. Construction of a valvulotome with a variable diameter cutting head is therefore recommended. (+info)Evaluation of disinfection and sterilization of reusable angioscopes with the duck hepatitis B model. (4/180)
PURPOSE: Nosocomial transmission of viral hepatitis and retrovirus infection has been reported. The expected risk is greatest for the hepatitis B virus (HBV). The duck HBV (DHBV) has similar biologic and structural characteristics to HBV and has been adopted as a suitable model for disinfectant testing. METHODS: Angioscopic examination of the external jugular vein was performed on DHBV-infected ducks. After use, the instrument was air dried for 3 minutes. Samples were obtained by flushing the channel with 5 mL of phosphate buffered saline solution. The samples were collected immediately after drying (control), after flushing with 5 mL of water, after glutaraldehyde disinfection for 5, 10, and 20 minutes, and after ethylene oxide gas sterilization. Angioscopes were either precleaned or uncleaned before disinfection/sterilization. Residual infectivity was assessed with inoculation of samples into the peritoneal cavity of day-old ducks (n = 231). RESULTS: DNA analysis results of liver samples showed that all 38 control ducks became infected. The frequency of DHBV infection was reduced to 93% (14 of 15) by flushing the angioscope with 5 mL of sterile water. No transmission occurred after the use of any of the properly precleaned and disinfected/sterilized angioscopes. However, after the use of the uncleaned angioscopes, the transmission rate was 90% (9 of 10) and 70% (7 of 10) after 5 and 10 minutes of contact time, respectively, in 2% glutaraldehyde. Even after the recommended 20 minutes of contact time, there was still 6% (2 of 35) transmission. After ethylene oxide sterilization, two of the recipient ducklings (2 of 35) were infected with DHBV. CONCLUSION: There was no disease transmission after reuse of disposable angioscopes adequately cleaned before disinfection or sterilization. However, if the angioscopes are inadequately cleaned, DHBV can survive despite glutaraldehyde disinfection or ethylene oxide sterilization. This contrasts with previous in vitro and in vivo data with solid surgical instruments. It is postulated that the presence of a narrow lumen or residual protein shielding within the lumen may compromise effective inactivation of hepadnaviruses on angioscopes, with the potential risk for patient-to-patient transmission. (+info)Stent attachment site-related endoleakage after stent graft treatment: An in vitro study of the effects of graft size, stent type, and atherosclerotic wall changes. (5/180)
OBJECTIVE: Perigraft endoleakage is a major complication of the endovascular treatment of abdominal aortic aneurysms. The factors that cause this form of endoleakage are not completely identified. The effect of sizing of the prosthesis in combination with either self-expandable or balloon-expandable stents is evaluated in this study. Further, the influence of atherosclerotic changes on endoleakage is evaluated. METHODS: Eight human abdominal aortas were assessed macroscopically at 11 sites for the presence of atherosclerotic changes with intravascular ultrasound scanning (IVUS) and with computed tomography (CT). Five aortas were placed in in vitro circulation with physiologic parameters. After the determination of the proximal and distal landing site of the stent graft, the diameter and surface measurements of the cross sections were taken. The stent graft diameters were chosen from 4-mm undersizing to 6-mm oversizing, both for Gianturco stent grafts (William Cook Europe A/S, Bjaeverskov, Denmark) and for Palmaz stent grafts (Cordis/Johnson & Johnston Co, Warren, NJ). After placement of the stent graft, the diameter and surface measurements of the aortic cross section were determined at the proximal and distal stent attachment sites. The presence and size of the folds at the stent attachment site and the interface with the aortic wall were determined with IVUS and angioscopy. Endoleakage was evaluated with angiography. After angioplasty of the stent attachment site, IVUS, angioscopy, and angiography were repeated. RESULTS: Regarding atherosclerotic changes of the aortic wall, the correlations between clinical impression and CT, clinical impression and IVUS, and CT and IVUS were high (r = 0.77, r = 0.79 and r = 0.79, respectively). For the Gianturco stent grafts, no significant relationship existed between the diameters measured before and after stent graft placement, leading to great differences in intended and achieved oversizing. The achieved oversizing was less in the case of minimal atherosclerotic changes of the aortic wall. The Gianturco stent graft followed the aortic wall closely during the heart cycle. The sizes of the folds of the fabric were clearly correlated with the achieved oversizing (r = 0.83; P =.04) and the grade of endoleakage (r = 0.88; P =.022). Angioplasty after stent graft placement had no effect on the diameter and the grade of endoleakage. Palmaz stent grafts did not follow the aortic wall during the heart cycle. A significant correlation existed between oversizing and both space between aortic wall and stent graft (r = -0.88; P =.02) and grade of endoleakage (r = 0.84; P =.036). Grade of endoleakage in the Palmaz stent graft group was less than in the Gianturco stent graft group. CONCLUSION: With the use of Gianturco stents, a great difference between intended and achieved oversizing is accomplished. The atherosclerotic changes of the aortic wall possibly affect this finding. The configuration of the Gianturco stent results in the formation of fold in the case of oversizing, which is associated with endoleakage. However, the self-expandable character of the stent leads to a close relation to the aortic wall during the heart cycle, and this may possibly accommodate future aortic neck dilation. The Palmaz stent grafts do not follow the aortic wall during the heart cycle, but they do lead to better interface between the graft and the aortic wall, which results in less endoleakage. (+info)The use of arm vein in lower-extremity revascularization: results of 520 procedures performed in eight years. (6/180)
PURPOSE: The absence of an adequate ipsilateral saphenous vein in patients requiring lower-extremity revascularization poses a difficult clinical dilemma. This study examined the results of the use of autogenous arm vein bypass grafts in these patients. METHODS: Five hundred twenty lower-extremity revascularization procedures performed between 1990 and 1998 were followed prospectively with a computerized vascular registry. The arm vein conduit was prepared by using intraoperative angioscopy for valve lysis and identification of luminal abnormalities in 44.8% of cases. RESULTS: Seventy-two (13. 8%) femoropopliteal, 174 (33.5%) femorotibial, 29 (5.6%) femoropedal, 101 (19.4%) popliteo-tibial/pedal, and 144 (27.7%) extension "jump" graft bypass procedures were performed for limb salvage (98.2%) or disabling claudication (1.8%). The average age of patients was 68.5 years (range, 32 to 91 years); 63.1% of patients were men, and 36.9% of patients were women. Eighty-five percent of patients had diabetes mellitus, and 77% of patients had a recent history of smoking. The grafts were composed of a single arm vein segment in 363 cases (69. 8%) and of spliced composite vein with venovenostomy in 157 cases (30.2%). The mean follow-up period was 24.9 months (range, 1 month to 7.4 years). Overall patency and limb salvage rates for all graft types were: primary patency, 30-day = 97.0% +/- 0.7%, 1-year = 80.2% +/- 2.1%, 3-year = 68.9% +/- 3.6%, 5-year = 54.5% +/- 6.6%; secondary patency, 30-day = 97.0% +/- 0.7%, 1-year = 80.7% +/- 2.1%, 3-year = 70.3% +/- 3.4%, 5-year = 57.5% +/- 6.2%; limb salvage, 30-day = 97.6% +/- 0.7%, 1-year = 89.8% +/- 1.7%, 3-year = 82.1% +/- 3.3%, 5-year = 71.5% +/- 6.9%. Secondary patency and limb salvage rates were greatest at 5 years for femoropopliteal grafts (69.8% +/- 12.8%, 80.7% +/- 11.8%), as compared with femorotibial (59.6% +/- 10. 3%, 72.7% +/- 10.5%), femoropedal (54.9% +/- 25.7%, 56.8% +/- 26.9%, ) and popliteo-tibial/pedal grafts (39.0% +/- 7.3%, 47.6% +/- 15.4%). The patency rate of composite vein grafts was equal to that of single-vein conduits. The overall survival rate was 54% at 4 years. CONCLUSION: Autogenous arm vein has been used successfully in a wide variety of lower-extremity revascularization procedures and has achieved excellent long- and short-term patency and limb salvage rates, higher than those generally reported for prosthetic or cryopreserved grafts. Its durability and easy accessibility make it an alternative conduit of choice when an adequate saphenous vein is not available. (+info)Endovascular-assisted versus conventional in situ saphenous vein bypass grafting: cumulative patency, limb salvage, and cost results in a 39-month multicenter study. (7/180)
OBJECTIVE: In this retrospective multicenter study, the results of a minimally invasive method of endovascular-assisted in situ bypass grafting (EISB) versus "open" conventional in situ bypass grafting (CISB) were evaluated with a comparison of primary and secondary patency, limb salvage, and cost. METHODS: Enrolled in this study were 273 patients: 117 underwent CISB (42 femoropopliteal, 75 femorocrural) and 156 underwent EISB (41 femoropopliteal, 115 femorocrural). EISB was performed with an angioscopic Side Branch Occlusion system and an angioscopically guided valvulotome. All the patients underwent follow-up examination with serial color-flow ultrasound scanning. RESULTS: Both groups had similar comorbid risk factors for diabetes mellitus, coronary artery heart disease, hypertension, and cigarette smoking. The primary patency rates (CISB, 78.2% +/- 5% [SE]; EISB, 70.5% +/- 5%; P =.156), the secondary patency rates (CISB, 84.1% +/- 4%; EISB, 82.9% +/- 5%; P =.26), and the limb salvage rates (CISB, 85.8%; EISB, 88.4%; P =.127) were statistically similar, with a follow-up period that extended to 39 months (mean, 16.6 months; range, 1 to 40 months). In veins that were less than 2.5 to 3.0 mm in diameter, the EISB grafts fared poorly, with an increased incidence of early (12-month) graft thromboses (CISB, 10 grafts, 8.5%; EISB, 24 grafts, 15.3%). However, wound complications (CISB, 23%; EISB, 4%; P =.003), mean hospital length of stay (CISB, 6.5 days +/- 4.83; EISB, 3.2 days +/- 3.19; P =.001), and mean hospital charges (CISB, $25,349 +/- $19,476; EISB, $18,096 +/- $14,573; P =.001) were all significantly reduced in the EISB group. CONCLUSION: The CISB and EISB midterm primary and secondary patency and limb salvage rates were statistically similar. In smaller veins (< 2.5 to 3.0 mm in diameter), however, EISB is not appropriate because overly aggressive instrumentation may cause intimal trauma, with resultant early graft failure. With the avoidance of a long leg incision in the EISB group, wound complications and hospital length of stay were significantly reduced, which lowered hospital charges and justified the additional cost of the endovascular instruments. When in situ bypass grafting is contemplated, EISB in appropriate patients is a safe, minimally invasive, and cost-effective alternative to CISB. (+info)Minimally invasive approach for aortic arch branch vessel reconstruction. (8/180)
Minimally invasive aortic arch branch vessel reconstruction was successfully accomplished in four patients over the past 3 years. There were no operative complications. Three patients had an uneventful hospital course, ranging from 3 to 5 days. The fourth patient with multiple medical problems and severe peripheral vascular disease had a prolonged hospital course for reasons unrelated to the surgical procedure. This minimally invasive surgical exposure can be used to effectively and safely repair innominate and left common carotid artery lesions. (+info)AS = Angioscopy. *BI = Biomagnetic Imaging. *CD = Color Flow Doppler. *CF = Cinefluorography (retired) ...
"Dynamic Anatomical Study Of Cardiac Shunting In Crocodiles Using High-Resolution Angioscopy" (PDF). The Journal of Experimental ...
Axelsson, Michael; Craig E. Franklin (1997). "From anatomy to angioscopy: 164 years of crocodilian cardiovascular research, ...
He is the first cardiologist in the region to perform an angioscopy and directional atherectomy. He is reported to be the first ... Atherectomy Drug Eluting Stents Ventricular assist device Angioscopy Embolectomy Transmyocardial revascularization India portal ...
1991 Gershman, A., Chandra, M., Daykhovsky, L., Grundfest, W. Technical Parameters For Angioscopy: Critical Elements For ...
... serial observations by coronary angioscopy". Am Heart J. 161 (6): 1200-6. doi:10.1016/j.ahj.2011.03.006. PMID 21641369. Hwang ...
... for detecting myocardial infarction Angioscopy using a flexible fiberoptic catheter inserted directly into an artery. ...
... angioscopy arthroscopy bronchoscopy colposcopy cystoscopy fetoscopy hysteroscopy gastrointestinal endoscopy including ...
Forrester led a team that developed coronary angioscopy, a method for seeing inside a living patient's coronary arteries using ...
... angioscopy MeSH E04.800.250.070 --- arthroscopy MeSH E04.800.250.100 --- bronchoscopy MeSH E04.800.250.150 --- colposcopy MeSH ... angioscopy MeSH E04.100.814.143 --- arteriovenous shunt, surgical MeSH E04.100.814.200 --- blood vessel prosthesis implantation ...
... angioscopy MeSH E01.370.370.120 --- blood circulation time MeSH E01.370.370.130 --- blood flow velocity MeSH E01.370.370.140 ... angioscopy MeSH E01.370.388.250.070 --- arthroscopy MeSH E01.370.388.250.100 --- bronchoscopy MeSH E01.370.388.250.150 --- ... microscopic angioscopy MeSH E01.370.370.610 --- plethysmography MeSH E01.370.370.610.600 --- photoplethysmography MeSH E01.370. ...
Fluorescein angiography or angioscopy of eye (95.13) Ultrasound study of eye (95.14) X-ray study of eye (95.15) Ocular motility ...
The instrument used to perform angioscopy is called as angioscope. Coronary artery angioscopy, which first was used to reveal ... Angioscopy is a medical technique for visualizing the interior of blood vessels. In this technique, a flexible fiberoptic ... Angioscopy is also used as an adjunctive procedure during vascular bypass to visualize valves within venous conduits. ...
... is a common medical procedure in which an instrument called a proctoscope (also known as a rectoscope, although the latter may be a bit longer) is used to examine the anal cavity, rectum, or sigmoid colon. A proctoscope is a short, straight, rigid, hollow metal tube, and usually has a small light bulb mounted at the end. It is approximately 5 inches or 15 cm long, while a rectoscope is approximately 10 inches or 25 cm long.[1] During proctoscopy, the proctoscope is lubricated and inserted into the rectum, and then the obturator is removed, allowing an unobstructed view of the interior of the rectal cavity. This procedure is normally done to inspect for hemorrhoids or rectal polyps and might be mildly uncomfortable as the proctoscope is inserted further into the rectum. Modern fibre-optic proctoscopes allow more extensive observation with less discomfort. ...
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 ...
... is a palliative surgical procedure performed for patients with Tricuspid atresia. It is also part of the surgical treatment path for hypoplastic left heart syndrome. [1][2][3] This procedure has been largely replaced by Bidirectional Glenn procedure. It connects the superior vena cava to the right pulmonary artery.[4] ...
The patient must be placed supine, without the head or any extremities dangling over the edge of the table. Measurement of ankle blood pressures in a seated position will grossly overestimate the ABI (by approximately 0.3). A Doppler ultrasound blood flow detector, commonly called Doppler wand or Doppler probe, and a sphygmomanometer (blood pressure cuff) are usually needed. The blood pressure cuff is inflated proximal to the artery in question. Measured by the Doppler wand, the inflation continues until the pulse in the artery ceases. The blood pressure cuff is then slowly deflated. When the artery's pulse is re-detected through the Doppler probe the pressure in the cuff at that moment indicates the systolic pressure of that artery. The higher systolic reading of the left and right arm brachial artery is generally used in the assessment. The pressures in each foot's posterior tibial artery and dorsalis pedis artery are measured with the higher of the two values used as the ABI for that leg.[2] ...
While most IVC filters are made of non-ferromagnetic materials, there are a few types that are weakly ferromagnetic. Accordingly, IVC filters fall under the MRI Safe and MRI Conditional categories depending mostly on type of material used during construction. Rarely will one find an MRI Not Safe IVC filter, as most of the steel, and other ferromagnetic material devices have been discontinued via the FDA. IVC filters are attached to the vena cava via hooks on their ends. Some are compression springs, which compress outward onto the side wall of the vena cava; however, they still have small hooks that retain their location. These hooks aid in the anchoring and healing process, as they allow the tissues to 'ingrow' around them, securing the IVC in place. It is unlikely, then, after 4 to 6 weeks of healing, that an MRI of 1.5 tesla, up to 3 tesla, will cause any level of dislodging to occur to the IVC filter. Studies of MR examination of both animals and humans, with implanted IVC filters, have not ...
The original procedure was named for Alfred Blalock, surgeon, Baltimore (1899-1964), Helen B. Taussig, cardiologist, Baltimore/Boston (1898-1986) and Vivien Thomas (1910-1985) who was at that time Blalock's laboratory technician. They all helped to develop the procedure. Taussig, who treated hundreds of infants and children with this disorder, had observed that children with a cyanotic heart defect and a patent ductus arteriosus (PDA) lived longer than those without the PDA. It therefore seemed to her that a shunt which mimicked the function of a PDA might relieve the tetralogy patients' poor oxygenation. In 1943, having broached the possibility of a surgical solution to Robert Gross of Boston without success, Taussig approached Blalock and Thomas in their Hopkins laboratory in 1943. According to the account of the original consultation between the three provided in Vivien Thomas' 1985 autobiography Partners of the Heart, Taussig carefully described the anomaly of Tetralogy of Fallot, but made ...
After angioplasty, most patients are monitored overnight in the hospital, but if there are no complications, patients are sent home the following day. The catheter site is checked for bleeding and swelling and the heart rate and blood pressure is monitored. Usually, patients receive medication that will relax them to protect the arteries against spasms. Patients are typically able to walk within two to six hours following the procedure and return to their normal routine by the following week.[4] Angioplasty recovery consists of avoiding physical activity for several days after the procedure. Patients are advised to avoid any type of lifting, or other strenuous physical activity for a week.[5] Patients will need to avoid physical stress or prolonged sport activities for a maximum of two weeks after a delicate balloon angioplasty.[6] After the initial two week recovery phase, most angioplasty patients can begin to safely return to low-level exercise. A graduated exercise program is recommended ...
The specialty continues to be based on operative arterial and venous surgery but since the early 1990s has evolved greatly. There is now considerable emphasis on minimally invasive alternatives to surgery. The field was originally pioneered by interventional radiologists, chiefly Dr. Charles Dotter, who invented angioplasty. Further development of the field has occurred via joint efforts between interventional radiology, vascular surgery, and interventional cardiology. This area of vascular surgery is called Endovascular Surgery or Interventional Vascular Radiology, a term that some in the specialty append to their primary qualification as Vascular Surgeon. Endovascular and endovenous procedures can now form the bulk of a vascular surgeon's practice.. The development of endovascular surgery has been accompanied by a gradual separation of vascular surgery from its origin in general surgery. Most vascular surgeons would now confine their practice to vascular surgery and similarly general surgeons ...
... , or impedance plethysmography (IPG), is a non-invasive medical test that measures small changes in electrical resistance of the chest, calf or other regions of the body. These measurements reflect blood volume changes, and can indirectly indicate the presence or absence of venous thrombosis. This procedure provides an alternative to venography, which is invasive and requires a great deal of skill to execute adequately and interpret accurately. For the chest, the technique was developed by NASA to measure the split second impedance changes within the chest, as the heart beats, to calculate both cardiac output and lung water content. This technique has progressed clinically (often now called BioZ, i.e. biologic impedance, as promoted by the leading manufacturer in the US) and allows low cost, non-invasive estimations of cardiac output and total peripheral resistance, using only 4 skin electrodes, oscillometric blood pressure measurement and lung water volumes with minimal ...
ක්රියේටිව් කොමන්ස් ඇට්රිබ්යුශන්/ශෙයා-අලයික් වරපතට යටත්ව ඉහත පෙළ ඔබ වෙත සැපයෙයි; අමතර කොන්දේසි අදාළ විය හැක. විස්තර සඳහා පරිහරණ කොන්දේසි බලන්න ...
The instrument used to perform angioscopy is called as angioscope. Coronary artery angioscopy, which first was used to reveal ... Angioscopy 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 ... Retrieved from "https://en.wikipedia.org/w/index.php?title=Angioscopy&oldid=768649155" ...
Starting with the structure and fundamental principles of angioscopy, it shows ... This book presents a thorough review of coronary angioscopy, ranging from instructions on its use to the latest advances. ... Angioscopy is a unique medical technique for visualizing the interior of blood vessels and helps physicians not only to ... The authors are leading researchers on angioscopy. This book offers the perfect guide not only for new clinicians but also for ...
Background: With faster image acquisition times and thinner slice widths, multislice detector computed tomography (MSCT) allows visualisation of human coronary arteries with diagnostic image quality. In addition to conventional axial slices, virtual coronary angioscopies (VCA) can be reconstructed using MSCT datasets.. Objective: To evaluate the feasibility of reconstructing VCA and to determine the clinical value of this new application in detecting atherosclerotic coronary artery lesions.. Methods: Datasets obtained by contrast enhanced non-invasive coronary angiography using MSCT (Somatom VZ) were analysed from 14 consecutive patients. VCA were simulated in 14 coronary arteries (left anterior descending, n = 7; right coronary, n = 7). Lesion detection was undertaken on conventional contrast enhanced axial slices, as well as by VCA. Intracoronary ultrasound (ICUS) was used as the gold standard for in vivo plaque detection.. Results: 38 lesions were detected both on ICUS and on axial slices: 14 ...
"Angioscopy" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH (Medical Subject ... Below are MeSH descriptors whose meaning is more general than "Angioscopy".. *Analytical, Diagnostic and Therapeutic Techniques ... This graph shows the total number of publications written about "Angioscopy" by people in Harvard Catalyst Profiles by year, ... Below are the most recent publications written about "Angioscopy" by people in Profiles. ...
Angioscopy and Chronic Pulmonary Arterial Obstruction BRUCE H. BRUNDAGE, M.D.; STUART RICH, M.D. ... To the editor: Shure and colleagues (1) recently reported on the use of angioscopy in patients with chronic pulmonary arterial ... BRUNDAGE BH, RICH S. Angioscopy and Chronic Pulmonary Arterial Obstruction. Ann Intern Med. ;104:586. doi: 10.7326/0003-4819- ...
... angioscopy demonstrated significant sub-intirnal dissections (2/8 cases) . Angioscopy provides valuable clinical information to ... Percutaneous angioscopy of sapphire-tip laser angioplasty Author(s): Michael Ralph Rees; Abdurrazak A. Gehani; Simon Ashley; ... Percutaneous angioscopy using flexible steerable 2.2mm diameter and non-steerable 1.4 mm. angioscopes together with a guiding ... Prior to laser angioplasty, angioscopy demonstrated endoluminal findings that were not detected by angiography. Following laser ...
Coronary angioscopy before and after stent deployment Author(s): Scott J. Denardo; Richard A. Schatz; Krishna J. Rocha-Singh; S ... Coronary angioscopy was used in an attempt to visualize the internal architecture of cardiac vessels before and after ... In 24 patients, angioscopy was performed both after preliminary balloon angioplasty and then again after stent deployment. In ... In 16 of these 24 patients a dissection was documented by angioscopy after balloon angioplasty. The dissection was absent after ...
Incorporation of virtual angioscopy (VA) in the diagnostic work-up of aortic diseases could improve the clinical value and ... Basha, M.A.A., Salem, A.F., Azmy, T.M. et al. The added value of CT virtual angioscopy to MDCT angiography in the evaluation of ... Incorporation of virtual angioscopy (VA) in the diagnostic work-up of aortic diseases could improve the clinical value and ... Virtual angioscopy and 3D navigation: a new technique for analysis of the aortic arch after vascular surgery. European Journal ...
Detection of Vulnerable Coronary Plaques by Color Fluorescent Angioscopy. Yasumi Uchida, Yasuto Uchida, Seiji Kawai, Ryohei ...
Coronary angiography was less sensitive than angioscopy for detecting intracoronary thrombus. Angioscopy and angiography were ... Angioscopy was more sensitive than angiography for intracoronary thrombus. ACP J Club. 1995 Mar-April;122:45. doi:10.7326/ACPJC ... Will coronary angioscopy become a tool for every patient having coronary intervention? This is unlikely, although the more ... When angioscopy was used as the diagnostic standard, the sensitivity of angiography for detecting thrombus was 19%, the ...
Findings of optical frequency domain imaging and coronary angioscopy in a lesion with spontaneous recanalization identified by ...
1991) Percutaneous angioscopy during angioplasty using a steerable microangioscopy. J Am Coll Cardiol 17:100-105. ... 1995) Prediction of acute coronary syndromes by percutaneous angioscopy in patients with stable angina. Am Heart J 130:195-203. ... Coronary angioscopy was performed with an image catheter (Vecmova, Clinical Supply Co., Gifu, Japan). Before use, the white ... Pre-interventional coronary angioscopy and IVUS images were obtained from 57 patients with ischemic heart disease. Catheter ...
title = "Angioscopy-assisted aneurysm clipping",. abstract = "OBJECTIVE: To test the concept that endovascular angioscopy can ... Angioscopy has the potential to become a useful adjunct during intracranial aneurysm clipping because it provides real-time ... Angioscopy has the potential to become a useful adjunct during intracranial aneurysm clipping because it provides real-time ... Angioscopy has the potential to become a useful adjunct during intracranial aneurysm clipping because it provides real-time ...
Findings From Coronary Angioscopy and Optical Coherence Tomography ... Mechanisms of Very Late Stent Thrombosis After Drug-Eluting Stent Implantation: Findings From Coronary Angioscopy and Optical ... Correlation Between Plaque Color Classification by Coronary Angioscopy and Fibrous Cap Thickness by Optical Coherence ... Stent Thrombosis after Sirolimus-Eluting Stent Implantation Observed Using Optical Coherence Tomography and Coronary Angioscopy ...
Cauliflower-Like Appearance of Calcified Nodules Observed by Coronary Angioscopy. Kazuoki Dai, Kazuki Suruga, Yasuhisa Nakao, ... Cauliflower-Like Appearance of Calcified Nodules Observed by Coronary Angioscopy. Kazuoki Dai, Kazuki Suruga, Yasuhisa Nakao, ... Cauliflower-Like Appearance of Calcified Nodules Observed by Coronary Angioscopy. Kazuoki Dai, Kazuki Suruga, Yasuhisa Nakao, ... such as coronary angioscopy, optical frequency domain imaging, and intravascular ultrasound during percutaneous coronary ...
angioscopy Joint project between University of California, Berkeley (Sastry, Fearing and Stark), Endorobotics Corporation (Cohn ...
... performed angioscopy in 21 patients undergoing angiography and concluded that angioscopy is superior to angiography for ... Coronary angioscopy is an excellent research tool, however, its role in day-to-day management is not defined. ... C, Angioscopy view after angioplasty revealing an improved lumen diameter and displacement of the friable plaque. D, Angiogram ... Percutaneous Angioscopy Of Saphenous Vein Coronary Bypass Grafts Angiography remains the reference standard for the diagnosis ...
AS = Angioscopy. *BI = Biomagnetic Imaging. *CD = Color Flow Doppler. *CF = Cinefluorography (retired) ...
... angioscopy; an ultrasound probe that is or is not an integral part of the device; or an angioscope that is or is not an ...
Angioscopy apparatus and methods. US6142971. Aug 13, 1998. Nov 7, 2000. Therox, Inc.. System and method for high pressure ...
Real time angioscopy imaging system. US5036464 *. 15 May 1990. 30 Jul 1991. Olympus Optical Co., Ltd.. Methods of detecting ...
Angioscopy: Instrumentation, Techniques, and Applications. Pages 93-108. Miller, Arnold (et al.) ...
Real time angioscopy imaging system. US5036464 *. 15 May 1990. 30 Jul 1991. Olympus Optical Co., Ltd.. Methods of detecting ...
6. 6 Available/Suggested Techniques for Detection of Vulnerable Plaques Invasive Angiography IVUS MRI OCT Angioscopy ...
Detection of Vulnerable Patients by Angioscopy. Tomohito Ohtani, Yasunori Ueda, Isamu Mizote, Jota Oyabu, Katsuki Okada, ...
- Prior to laser angioplasty, angioscopy demonstrated endoluminal findings that were not detected by angiography. (spie.org)
- In seven patients, thrombus that was not apparent by angiography was visualized by angioscopy. (spie.org)
- Moreover, in four patients, thrombus that was suggested by angiography could not be confirmed by angioscopy. (spie.org)
- Incorporation of virtual angioscopy (VA) in the diagnostic work-up of aortic diseases could improve the clinical value and efficiency of multidetector computed tomography angiography (MDCTA). (springer.com)
- To compare coronary angioscopy with angiography for the detection of intimal dissection and intracoronary thrombus. (acpjc.org)
- Blinded comparison of coronary angioscopy with angiography. (acpjc.org)
- 52 patients (mean age, 61 y) who had both coronary angiography and coronary angioscopy during the same cardiac catheterization session. (acpjc.org)
- 2 angiographic dissections were undetected by angioscopy, and 27 angioscopic dissections were undetected by angiography. (acpjc.org)
- Angioscopy and angiography were complementary diagnostic tools for detecting intimal dissections. (acpjc.org)
- I do not believe that angioscopy is likely to provide additional clinical value for coronary dissection above that provided by angiography. (acpjc.org)
- Acute ischaemic episodes such as myocardial infarction and unstable angina have been shown by histology, 6 angiography, 7 and angioscopy 8 to be largely caused by thrombosis developing over a culprit plaque. (bmj.com)
- Indicated in diagnostic fluorescein angiography or angioscopy of the fundus and of the iris vasculature. (rxlist.com)
- Comparision of angioscopy and angiography for monitoring infrainguinal bypass vein grafts: Results of a prospective randomized trial. (columbiadoctors.org)
- We describe here a case report of late stent malapposition following sirolimus-eluting stent implantation observed by angiography, intravascular ultrasound, optical coherence tomography and angioscopy. (invasivecardiology.com)
- 1 Calcified nodules are sometimes observed by intracoronary imaging modalities, such as coronary angioscopy, optical frequency domain imaging, and intravascular ultrasound during percutaneous coronary intervention procedures. (ahajournals.org)
- In order this information to be obtained, other modalities such as optical coherence tomography, angioscopy, near infrared spectroscopy and intravascular magnetic resonance imaging have either been utilized or are under evaluation. (biomedcentral.com)
- For these limitations to be addressed, alternative invasive modalities with different strengths and weaknesses have been developed such as angioscopy, optical coherence tomography (OCT), near infrared spectroscopy (NIRS) and intravascular magnetic resonance imaging (IV-MRI). (biomedcentral.com)
- Diagnostic procedures are performed, including right-heart catheterization, left-heart catheterization, angioscopy, intravascular ultrasound and Doppler wire evaluations. (umdnj.edu)
- Angioscopy is a unique medical technique for visualizing the interior of blood vessels and helps physicians not only to diagnose the pathology but also to measure the effectiveness of Percutaneous coronary intervention (PCI) or antiarteriosclerotic drugs. (springer.com)
- Percutaneous angioscopy using flexible steerable 2.2mm diameter and non-steerable 1.4 mm. angioscopes together with a guiding catheter system was used to evaluate the endoluminal appearances before and after laser angioplasty using ND-YAG laser energy modified by 1.8,2.2 and 3.0 mm rounded sapphire probes in 8 patients with occlusive peripheral vascular disease. (spie.org)
- 29. Percutaneous Cardiovascular Angioscopy. (booktopia.com.au)
- 1 Angioscopy has been reported to be useful for the direct visualization of thrombus and allows for characterization of the vessel wall from inside, 2 but we cannot observe the distal side of CTO in coronary arteries. (ahajournals.org)
- Relationship between yellow plaque grade and tissue protrusion after stent implantation: A coronary angioscopy study. (amedeo.com)
- The patient subsequently underwent IVUS assessment, optical coherence tomography (OCT), and coronary angioscopy (CAS). (invasivecardiology.com)
- Angioscopy is a medical technique for visualizing the interior of blood vessels . (wikipedia.org)
- Angioscopy is also used as an adjunctive procedure during vascular bypass to visualize valves within venous conduits. (wikipedia.org)
- Virtual angioscopy and 3-dimensional navigation findings of the aortic arch after vascular surgery. (springer.com)
- Virtual angioscopy and 3D navigation: a new technique for analysis of the aortic arch after vascular surgery. (springer.com)
- These virtual objects include three-dimensional (3D) objects (namely 3D models of the skin and vascular structures) and two-dimensional (2D) objects [namely orthogonal views of computed tomography (CT) angiograms, 2D images of 3D vascular models, and 2D images of a new virtual angioscopy whose appearance of the vessel wall follows that shown in ex vivo and in vivo angioscopies]. (degruyter.com)
- Reliant Medical Group has established a leadership role in minimally invasive surgery and angioscopy. (reliantmedicalgroup.org)
- Under the leadership of Dr. Leon Josephs, minimally invasive surgical techniques have been developed, including the use of angioscopy for lower extremity bypass operations. (reliantmedicalgroup.org)
- RESULTS: Angioscopy allowed clear visualization of the extent of aneurysm neck occlusion (complete, incomplete, residual 'dog ear') after clip application, as well as the presence or absence of distal parent vessel compromise. (elsevier.com)
- Angioscopy has the potential to become a useful adjunct during intracranial aneurysm clipping because it provides real-time endoluminal viewing of the aneurysm-distal parent vessel complex, which is sometimes obscured to the surgeon. (elsevier.com)
- (C) Coronary angioscopy (CAS) findings at baseline (a) and post-PCB angioplasty (b) . (onlinejacc.org)
- The instrument used to perform angioscopy is called as angioscope. (wikipedia.org)
- Frequency-domain optical coherence tomography (FD-OCT) revealed homogeneous neointima ( Figure 1B-a ) and coronary angioscopy (CAS) revealed white neointimal coverage at the ISR site ( Figure 1C-a ). (onlinejacc.org)
- This view changed when angioscopy and atherectomy studies compared the coronary lesions responsible for stable and unstable angina. (bmj.com)
- In 24 patients, angioscopy was performed both after preliminary balloon angioplasty and then again after stent deployment. (spie.org)
- In 16 of these 24 patients a dissection was documented by angioscopy after balloon angioplasty. (spie.org)
- Angioscopy was done before ( n = 15) or after ( n = 37) coronary balloon angioplasty. (acpjc.org)
- Coronary angioscopy after paclitaxel-coated balloon angioplasty revealed that undissolved drugs were floating and flowed distally ( C-c, blue arrow , Online Video 1 ). (onlinejacc.org)
- Intraoperative vein angioscopy was performed to identify and lyse valves. (bestbets.org)
- Role of angioscopy in reoperation for the failing or failed infrainguinal vein bypass graft. (columbiadoctors.org)
- The plaques were classified as either yellow or white using coronary angioscopy. (onlinejacc.org)
- Atherosclerotic plaques of coronary arteries can be classified into two types according to color by coronary angioscopy. (onlinejacc.org)
- To the editor: Shure and colleagues (1) recently reported on the use of angioscopy in patients with chronic pulmonary arterial obstruction. (annals.org)
- BRUNDAGE BH, RICH S. Angioscopy and Chronic Pulmonary Arterial Obstruction. (annals.org)
- Starting with the structure and fundamental principles of angioscopy, it shows readers how to apply the image to comprehensive care of coronary-artery patients. (springer.com)
- 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, is now widely used in catherization laboratories to visualize stents. (wikipedia.org)
- Coronary angioscopy was used in an attempt to visualize the internal architecture of cardiac vessels before and after deployment of Palmaz-Schatz stents in 50 patients. (spie.org)
- Coronary angioscopy was performed before and at 36 weeks after elective PCI in 19 and 14 patients treated with prasugrel and clopidogrel, respectively, across eight participating institutions. (go.jp)
- Coronary angioscopy in patients with unstable angina pectoris. (nii.ac.jp)
- Maldjian PD, Partyka L. Intimal tears in thoracic aortic dissection: appearance on MDCT with virtual angioscopy. (springer.com)
- Angioscopy and Ultrasound Guidance. (booktopia.com.au)
- Angioscopy provides valuable clinical information to support in-vitro experimental evidence of the mode of action of sapphire probes. (spie.org)
- What is the likely clinical utility of coronary angioscopy? (acpjc.org)
- Angioscopy was done with the Image-Cath system (Baxter, Interventional Cardiology Division). (acpjc.org)
- Angioscopy" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (harvard.edu)
- Virtual Angioscopy Using Spiral CT and Real-Time Interactive Volume-Rendering Techniques. (springer.com)
- Depth-map-based scene analysis for active navigation in virtual angioscopy. (springer.com)
- Tomás AC, Santos ÁL, Fragata J. Virtual angioscopy and 3D navigation of the aorta. (springer.com)
- This book presents a thorough review of coronary angioscopy, ranging from instructions on its use to the latest advances. (springer.com)
- The Difficult Hemodialysis Access Extremity: Proximal Radial Arteriovenous Fistulas and the Role of Angioscopy and Valvulotomes. (uthscsa.edu)
- This graph shows the total number of publications written about "Angioscopy" by people in Harvard Catalyst Profiles by year, and whether "Angioscopy" was a major or minor topic of these publication. (harvard.edu)
- Furthermore, the recently developed molecular angioscopy approach allows us to observe Low-density lipoprotein (LDL) oxide, collagen, and macrophages, and is rapidly growing in importance. (springer.com)
- Here we report an evaluation of the distal side of CTO of the superficial femoral artery (SFA) via a retrograde approach with angioscopy. (ahajournals.org)