Computed tomographyIntravenousMagneticDiagnosisCerebral AngiographyUltrasonographyScintigraphyPulmonary angiographyInterventional radiologyAneurysmVesselCarotidContrast-enhancedModality of choiceRadiographyRenalAngioplastyBlood vesselsOcclusionBiplaneEmbolizationAnatomyImagingInvasiveStentMDCTEndovascular techniquesMeSHDetectableVeinVascular structuresNephropathyEquipmentPatientsArteryStandardVisualizeArterialAneurysmsTreatmentPreciseTechnologyMistrettaMeasurementInstrumentationMethodClinical
Computed tomography7
- It is being replaced by computed tomography angiography (CTA), which can produce 3D images through a test which is less invasive and stressful for the patient, and magnetic resonance angiography (MRA), which avoids X-rays and nephrotoxic contrast agents. (wikipedia.org)
- Angiography Computed tomography angiography (CTA) Contrast medium Peripheral artery disease X-ray image intensifier Digital variance angiography (DVA) Glick, Yair. (wikipedia.org)
- Computed tomography (CT) pulmonary angiography is highly specific for pulmonary embolism. (bmj.com)
- Computed tomography angiography (CTA) and digital subtraction angiography showed a right unruptured large BA/SCA aneurysm. (surgicalneurologyint.com)
- The patient underwent computed tomography angiography (CTA) and digital subtraction angiography (DSA) that showed a right unruptured SCA aneurysm measuring approximately 13 mm in maximum diameter and associated with bilateral hypoplastic P1 arteries. (surgicalneurologyint.com)
- Various imaging modalities may be employed to diagnose and define a source of bleeding, including colonoscopy, nuclear scintigraphy with technetium‐99m‐labeled red blood cell or 99mTc sulfur colloid, computed tomography, and transcatheter digital subtraction angiography. (medscape.com)
- HlthRes-DB also contains indicators on the availability of the following medical equipment: computed tomography (CT) scanners, magnetic resonance imaging (MRI) units, positron emission tomography (PET) scanners, gamma cameras, digital subtraction angiography units, mammographs, radiation therapy equipment and lithotriptors. (who.int)
Intravenous3
- Intravenous digital subtraction angiography (IV-DSA) is a form of angiography which was first developed in the late 1970s. (wikipedia.org)
- Using intravenous digital subtraction angiography for carotid, cerebral, and renal arteries, a comparison was made between a single pulsed image and an integrated image composed of several pulsed images. (elsevierpure.com)
- Inter-observer agreement (Kappa statistic, 95% confidence interval (CI)) for categorization of carotid stenosis, as 0-29%, 30-69% or 70-99% was good (0.68, 0.63-0.73) on 789 conventional or digitally subtracted selective angiograms, and good (0.64, 0.54-0.75) on 174 conventionally and digitally subtracted aortic arch injection angiograms, but was poor (0.29, 0.02-0.80) on 29 intravenous digital subtraction angiograms. (ox.ac.uk)
Magnetic7
- Computed tomographic angiography (CTA) and magnetic resonance angiography (MRA) are routinely utilized nowadays in clinical practice. (hindawi.com)
- During the 1990s, Mistretta applied DSA technology to overcome the limitations of slow magnetic resonance data acquisition in contrast-enhanced MRA techniques. (nxtbook.com)
- A 52-year-old woman with nonspecific symptoms was diagnosed with multiple cerebral aneurysms and abnormal blood vessels observed on magnetic resonance angiography. (nagoya-u.ac.jp)
- Modern brain imaging techniques such as flat panel detector computed tomographic angiography and magnetic resonance imaging angiography have a significant role in the preoperative work-up, still digital subtraction angiography remains the neuroimaging mainstay. (minervamedica.it)
- We also perform MRA, magnetic resonance imaging angiography. (diagnosticdetectives.com)
- The diagnostic and prognostic information available from captopril renography and the increasing availability of magnetic resonance angiography (MRA) have reduced the use of renal arteriography as a diagnostic tool, except in evaluating kidneys with intrarenal branch-artery stenoses and those with complex vascular anatomy, including multiple accessory arteries. (medscape.com)
- Magnetic resonance angiography (MRA) produces excellent contrast-enhanced angiograms without the risk of iodinated compounds and radiation exposure. (medscape.com)
Diagnosis8
- The cost-effectiveness of digital subtraction angiography in the diagnosis of cerebrovascular disease (PDF). (wikipedia.org)
- Digital subtraction angiography (DSA) is still considered the gold standard among the currently used imaging methods for the diagnosis of an intracranial aneurysm. (hindawi.com)
- Mistretta For contributions to network multi-user information theory and for wide-ranging impact on programmable circuit architectures For the development of imaging instrumentation and techniques that have transformed the diagnosis and treatment of vascular disease Abbas El Gamal's lasting contributions to information theory, wireless networks, field programmable gate arrays (FPGAs), and digital imaging have immensely impacted a wide variety of information technology applications critical in today's society. (nxtbook.com)
- Under general supervision, perform routine and specialized diagnostic and therapeutic angiography procedures on patients following established parameters/protocols for use by physicians in diagnosis and treatment of pathologies. (svu.org)
- The diagnosis was verified with Doppler sonography, digital subtraction angiography (DSA) and captopril renal scintigraphy (CRS). (viamedica.pl)
- A basis of value established for the measure of quantity, weight, extent or quality, e.g. weight standards, standard solutions, methods , techniques, and procedures used in diagnosis and therapy. (lookformedical.com)
- Techniques used to carry out clinical investigative procedures in the diagnosis and therapy of disease. (lookformedical.com)
- Its diagnosis is histologic using immunohistochemical techniques [ 2 ]. (scitechnol.com)
Cerebral Angiography1
- Of these, 97 (8.4%) patients were included in the study because the aetiology of the SAH could not be verified by repeated four vessel cerebral angiography or postmortem examination. (bmj.com)
Ultrasonography2
- Ultrasonography (US), CT, MRI, cholangiography, angiography and scintigraphy are the most common radiological modalities used to evaluate the hepatic graft. (medscape.com)
- Carotid artery imaging types include digital subtraction angiography (DSA), duplex ultrasonography (DUS), CT angiography, and MR angiography. (rpi.edu)
Scintigraphy1
- Radiographic interventions (tagged red blood cell scintigraphy, computed tomographic angiography, and angiography) should be considered in high-risk patients with ongoing bleeding who do not respond adequately to resuscitation and who are unlikely to tolerate bowel preparation and colonoscopy. (medscape.com)
Pulmonary angiography5
- All others followed a diagnostic imaging protocol to exclude and diagnose pulmonary embolism using PIOPED interpreted ventilation-perfusion scanning, CT pulmonary angiography, and digital subtraction pulmonary angiography. (bmj.com)
- This study aimed to establish the safety of a diagnostic algorithm combining clinical probability, D-dimer, ventilation-perfusion scanning, CT pulmonary angiography and digital subtraction pulmonary angiography in patients with pleuritic chest pain. (bmj.com)
- Although pulmonary angiography is less sensitive than contrast-enhanced CT scanning, it is performed to accurately define the anatomy, specifically before therapeutic embolization is performed. (medscape.com)
- Although pulmonary angiography may also be a criterion standard for confirmation of a PAVM, angiography is required only when further intervention is planned. (medscape.com)
- Pulmonary angiography is less sensitive in identifying small or microscopic PAVMs, and MRI has significant limitations in screening for small lesions and in differentiating PAVM from lesions of other causes. (medscape.com)
Interventional radiology2
- Digital subtraction angiography (DSA) is a fluoroscopy technique used in interventional radiology to clearly visualize blood vessels in a bony or dense soft tissue environment. (wikipedia.org)
- A Digital Subtraction Angiography (DSA Cathlab) for advanced image guided interventional radiology technique is commissioned. (actrec.gov.in)
Aneurysm5
- In the future, further refinement of imaging techniques is necessary to increase the reliability of small vessel angiography to use this data for risk assessment before stent placement and aneurysm treatment. (ajnr.org)
- The development of newer MRA techniques may provide valuable information regarding the flow characteristics of an aneurysm. (hindawi.com)
- 9-11 Some researchers do not accept this and speculate that spontaneous thrombosis, vasospasm, destruction of the aneurysm by haemorrhage, narrowing of the aneurysmal neck, alterations in blood flow, inadequate angiographic technique or observer error may be responsible. (bmj.com)
- The current technique, involving the use of an easy-to-make device３is effective for endovascular aneurysm repair, especially when a proximal neck needs to be created in the ascending aorta. (bvsalud.org)
- Because we use modern techniques of brain aneurysm treatment. (diagnosticdetectives.com)
Vessel1
- On average, in 15% (5-30%) of patients with spontaneous subarachnoid haemorrhage (SAH), no obvious source of bleeding can be demonstrated, even with high quality four vessel cerebral digital subtraction angiography (DSA). (bmj.com)
Carotid3
- The effect of angiographic technique and image quality on the reproducibility of measurement of carotid stenosis and assessment of plaque surface morphology. (ox.ac.uk)
- We conclude that the reproducibility of measurement of carotid stenosis and the assessment of plaque surface morphology vary depending on the type of angiography and the quality of visualization of the stenosis. (ox.ac.uk)
- These imaging techniques provide information on the carotid artery's shape, localized blood flow, and plaque composition. (rpi.edu)
Contrast-enhanced4
- 3D TOF MRA and contrast-enhanced MRA are the most commonly employed techniques. (hindawi.com)
- The 3D reformatted contrast enhanced CT angiography demonstrated a cluster of dilated dysplastic vessels with pseudo aneurysms, anticipating potentially significant intraoperative blood loss (Figure 1C). (jscimedcentral.com)
- Unlike contrast-enhanced angiography, MRA has no attendant risk of nephropathy caused by contrast agent or cholesterol-emboli syndrome. (medscape.com)
- However, as a group, radiologists are using MRA in place of contrast-enhanced angiography as the diagnostic modality of choice. (medscape.com)
Modality of choice1
- CT angiography is the noninvasive imaging modality of choice for evaluation of suspected caroticocavernous fistula 9 . (radiopaedia.org)
Radiography1
- During the 1970s, screen film X-rays were the standard for radiography and angiography. (nxtbook.com)
Renal1
- In the process of therapeutic management of patients with Leriche's syndrome and renal artery stenosis we face the dilemma of which surgical technique and sequence of reconstructive procedures to choose. (viamedica.pl)
Angioplasty1
- A-5: Digital subtraction angiogram obtained during balloon angioplasty of a stenotic artery. (medscape.com)
Blood vessels2
- In traditional angiography, images are acquired by exposing an area of interest with time-controlled x-rays while injecting a contrast medium into the blood vessels. (wikipedia.org)
- Imaging blood vessels: Since it was introduced in 1980, a technology called digital subtraction angiography has become a standard method of measuring blood flow in arteries and veins. (wisc.edu)
Occlusion1
- Subsequent angiography confirmed occlusion at the hepatic arterial anastomosis. (medscape.com)
Biplane1
- image matrix 2480 × 1920 pixels) and 3D rotational angiography reconstructions (5 second DSA, subtraction technique) obtained on Axiom Artis zee biplane neuroradiologic angiography equipment using standard protocol. (ajnr.org)
Embolization1
- While transarterial or transvenous endovascular techniques represent frequently the therapy of choice, surgery remains a very valuable option both as a first line treatment and after partial embolization has been carried out. (minervamedica.it)
Anatomy3
- Therefore, we retrospectively analyzed DSA images and 3D rotational angiography with a review of literature for an imaging definition of microvascular anatomy of the brain stem. (ajnr.org)
- Mistretta recognized the importance that electronic subtraction in imaging could play in providing vascular images that were free of obscuring anatomy. (nxtbook.com)
- In digital subtraction angiography (DSA), the anatomy is viewed by the doctor using an image intensifier. (groveout.com)
Imaging12
- 1 , 2 Because of the small diameter of these side branches of 383 μm, visualization by different means of angiographic imaging like CT- or MR-based angiography is difficult and uncertain. (ajnr.org)
- Digital subtraction angiography is considered the imaging method of choice. (hindawi.com)
- The gold standard for intracerebral vascular imaging remains catheter angiography (Fig 2-11). (aao.org)
- The pioneering accomplishments and vision of Charles A. Mistretta in developing digital subtraction angiography (DSA), timeresolved magnet resonance angiography (MRA), and accelerated imaging algorithms have transformed diagnostic radiology. (nxtbook.com)
- Catheter-based digital subtraction angiography is the gold standard imaging technique due to its superior spatial and temporal resolution. (radiopaedia.org)
- With developments like digital subtraction angiography, flat panel detectors, and three-dimensional imaging, these devices have advanced significantly. (groveout.com)
- AngioViz provides a new visualization of the vascular flow seen in DSA imaging utilizing a technique called parametric imaging. (medgadget.com)
- Dual Energy Imaging - Dual Energy Subtraction is a new tool for evaluating rib fractures, bone abnormalities, primary lung cancer, metastatic disease, pneumonia, cardiac disease and lung diseases. (rwjbh.org)
- One of the most advanced diagnostic tools available today, PET/CT goes beyond the capabilities of traditional imaging techniques. (rwjbh.org)
- Our DSA unit provides digital high-resolution vascular imaging. (rwjbh.org)
- At present, angiography remains the standard imaging approach for detecting fibromuscular dysplasia/arterial stenoses and aneurysms, though its role is being redefined. (medscape.com)
- CT angiography (CTA) imaging with maximum intensity projection (MIP) and quantitative measurement of stenosis is an accurate noninvasive technique for diagnosing fibromuscular dysplasia/stenosis of the visceral arteries, regardless of the etiology. (medscape.com)
Invasive3
- Digital subtraction angiography (DSA), although invasive, is the criterion standard. (medscape.com)
- We diagnose, manage and treat disease that affect your brain, nervous system, spinal cord, head and neck with minimally invasive image guided techniques. (nsw.gov.au)
- 1 after initial resuscitation and/or active bleeding is suspected, CT angiography provides the fastest and least invasive means to localize the site of blood loss before planning endoscopic or radiological therapy. (medscape.com)
Stent1
- Stent-assisted coiling included the modified stent-assisted semi-jailing technique (n=10), balloon-in-stent technique (n=2), and coiling followed by balloon mounted stent (n=2). (bmj.com)
MDCT1
- Lee et al retrospectively enrolled 75 patients who had undergone liver transpalantation and found that although MDCT in the late period should be interpreted with caution in patients with suspected biliary complication, MDCT is a reliable diagnostic technique for the identification of early and late abdominal complications after liver transplantation. (medscape.com)
Endovascular techniques2
- Topic: Chapter discussing the indications for treatment of brain aneurysms, endovascular techniques, tips and tricks. (intechopen.com)
- Our experience reveals that the PED procedure is technically straightforward for the treatment of selected wide-necked saccular aneurysms, fusiform aneurysms, remnants of aneurysms, aneurysms with a high likelihood of failure with conventional endovascular techniques, and dissected vessels. (nih.gov)
MeSH1
- Angiography, Digital Subtraction" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (ctsicn.org)
Detectable1
- The patient had an uneventful postoperative course, with no detectable endoleak on postoperative digital subtraction angiography. (bvsalud.org)
Vein1
- A significant neurosurgical advance is the introduction of indocyanine green video angiography, which allows precise identification of the arterialized draining vein of the dural fistula to be disconnected and confirms interruption of the arteriovenous shunt. (minervamedica.it)
Vascular structures2
- The use of digital subtraction technology has enhanced the ability to visualize vascular structures with smaller amounts of contrast dye. (aao.org)
- He went on to refine and optimize DSA to provide virtually real-time visualization of vascular structures without obstructions, revolutionizing angiography with a safer and more effective technology that is now found in practically every medical center. (nxtbook.com)
Nephropathy1
- It can be used, for instance, in conjunction with CO2 angiography to help avoid nephropathy brought on by contrast. (groveout.com)
Equipment2
- The QUART DSA phantom is designed for maximum precision in QA/QC of Digital Subtraction Angiography equipment. (rothband.com)
- The department is now digital thanks to new picture archiving and communications systems (PACS) technology that accepts digital images from diagnostic equipment, such as X-rays and MRIs, stores them in a long-term archive and immediate review. (rwjbh.org)
Patients6
- Follow-up with selective digital subtraction angiography was performed in 323/596 (54.2%) patients harboring 342 aneurysms with a mean follow-up time of 28.6 months. (ajnr.org)
- Selective digital subtraction angiography (DSA) was performed as follow-up investigation in all included patients. (ajnr.org)
- All hospital records and death certificates were studied and 33 patients were examined by MRI and MR angiography more than 9 years (mean 12 years) after the initial bleeding. (bmj.com)
- MR angiography revealed no new findings in 33 surviving patients. (bmj.com)
- Digital subtraction angiography (DSA) was performed in all patients except for three who died during the acute stage. (bmj.com)
- Dr. Mika Niemela, MD. We follow the patients with digital subtraction angiography, DSA. (diagnosticdetectives.com)
Artery2
- 4 We hypothesized that the 3D-rotation technique allows superior visualization of the small branches of the basilar artery than 2D DSA images do. (ajnr.org)
- Digital subtraction angiography and endovascular procedures were performed through left brachial or axillary artery access under local anaesthesia. (viamedica.pl)
Standard1
- He subsequently pioneered the use of FPGAs in teaching digital system design, which has become standard in all electrical engineering programs. (nxtbook.com)
Visualize1
- Our results demonstrate that 2D DSA and 3D-rotation techniques are able to reliably visualize the penetrating branches of the brain stem in vivo. (ajnr.org)
Arterial1
- A pesar de los avances en el tratamiento farmacológico de la hipertensión pulmonar, en particular de la hipertensión arterial pulmonar (HAP), sigue siendo una enfermedad mortal. (revespcardiol.org)
Aneurysms3
- MR angiography (MRA) as a noninvasive adjunct to DSA was performed in 241 (70.5%) aneurysms. (ajnr.org)
- Digital subtraction angiography revealed four aneurysms and anastomoses between the left AMA and inferolateral trunk (ILT). (nagoya-u.ac.jp)
- But today the techniques of endovascular treatment of brain aneurysms are better. (diagnosticdetectives.com)
Treatment2
- 3 Understanding the mechanisms that underlie complications during transfemoral TAVR is essential, and familiarity with the techniques for their prevention and treatment is mandatory. (ahajournals.org)
- It is diagnosed using immunohistochemical technique and the treatment of choice is surgical resection of the tumour in order to prevent recurrences. (scitechnol.com)
Precise1
- DC Bead LUMI™ is designed to offer a more precise and controlled procedure than current techniques. (bostonscientific.com)
Technology1
- Digital technology made DSA practical starting in the 1970s. (wikipedia.org)
Mistretta2
- Incorporating a hand-made, custom-designed digital image processor, Mistretta introduced his DSA technique. (nxtbook.com)
- From the first, the technique had multiple advantages, says its inventor, Charles Mistretta, a professor of medical physics. (wisc.edu)
Measurement1
- Sources for this may be due to the observer's missing an abnormality, or to faulty technique resulting in incorrect test measurement, or to misinterpretation of the data. (lookformedical.com)
Instrumentation1
- The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. (lookformedical.com)
Method1
- Inter-observer agreement for assessment of plaque surface morphology was moderate (kappa 0.4-0.6) and did not vary with type of angiography or method of image acquisition. (ox.ac.uk)
Clinical1
- We present a brief historical overview of MRA, the currently used techniques, their pitfalls, and the MRA's clinical significance by systematically reviewing the pertinent literature. (hindawi.com)