نتایج جستجو برای: digital subtraction angiography dsa
تعداد نتایج: 360515 فیلتر نتایج به سال:
Methods We reviewed the contrast-enhanced brain MR, MR angiography (MRA), and digital subtraction angiography (DSA) examinations of 3 male patients with a confirmed molecular diagnosis of ADA2 deficiency and CNS involvement: two brothers (R312X and E328D mutations in compound heterozygosis) and a third unrelated patient (T360A homozygosis). Age at first MR examination was 6 years, 1 year 5 mont...
A preliminary study showed that encouraging laboratory results reported previously using tomographic digital subtraction angiography (DSA) can be transferred to clinical application for neurovascular imaging. Tomography may show cervical carotid disease more clearly than standard DSA images, and it eliminates the interference caused by overlapping vessels. Production of multiple tomographic ima...
Submit Manuscript | http://medcraveonline.com Abbreviations: PTA: Percutaneous Transluminal Angioplasty; Du-PTA: Duplex-Guided Percutaneous Transluminal Angioplasty; CLI: Critical Limb Ischemia; DSA: Digital Subtraction Angiography; COPD: Chronic Obstructive Pulmonary Disease; SFA: Superficial Femoral Artery; PSV: Peak Systolic Velocity; CIN: Contrast Induced Nephropathy; eGFR: Estimated Glomer...
Relation: Iodide mumps is an uncommon condition, induced by iodide-containing contrast, and is characterized by a rapid, painless enlargement of the bilateral or unilateral salivary gland. At present, the pathogenesis of iodide mumps is not yet clear. It may be related to an idiosyncratic reaction, a toxic accumulation of iodine in the gland duct, or renal function damage leading to an iodine e...
The introduction of digital subtraction angiography (DSA) in 1980 provided a method for real time 2D subtraction imaging. Later, 4D magnetic resonance (MR) angiography emerged beginning with techniques like Keyhole and time-resolved imaging of contrast kinetics (TRICKS) that provided frame rates of one every 5 seconds with limited spatial resolution. Undersampled radial acquisition was subseque...
BACKGROUND AND PURPOSE Contrast-enhanced MR angiography and extracranial color-coded duplex sonography are noninvasive, preoperative imaging modalities for evaluation of carotid artery stenosis. Innovative techniques and improvements in image quality require frequent reassessment of accuracy, reliability, and diagnostic value compared with those of digital subtraction angiography (DSA). We eval...
INTRODUCTION Cerebral CT angiography (CTA) is an established method applied to both the detection and treatment planning of intracranial aneurysms. The aim of our study was to compare CTA and digital subtraction angiography (DSA) findings with the surgical results mainly in patients with acute SAH and to evaluate the clinical usefulness of CTA. MATERIALS AND METHODS During the last 2 years, 8...
BACKGROUND AND PURPOSE The method of choice for detecting or excluding a vertebrobasilar aneurysm still is a matter of debate in patients with a characteristically perimesencephalic pattern of subarachnoid hemorrhage (SAH) on CT. We used decision analysis to compare possible diagnostic strategies in these patients. METHODS A decision analytic model was developed to evaluate the effect of 4 di...
This report describes three-dimensional (3D) fusion digital subtraction angiography (FDSA), a new algorithm for rotational angiography that combines reconstructions of the blood vessels and the osseous frame in a single 3D representation. 3D-FDSA is based on separate reconstructions of the mask and contrast sequences of the rotational acquisition. The two independent 3D data sets (3D-bone and 3...
BACKGROUND AND PURPOSE MR angiography is primarily and increasingly used to assess intracranial arterial stenoocclusion. However, MR angiography can cause overestimation of stenosis. Although CT angiography is accurate, it has limitations. Our purpose was to determine whether the accuracy of combined MR angiography and CT angiography is equal to that of digital subtraction angiography (DSA) in ...
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