Results 221 to 230 of about 99,920 (253)
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Intracranial Magnetic Resonance Angiography
Cardiovascular and Interventional Radiology, 1992Intraarterial angiography remains the "gold standard" for the evaluation of the intracranial vasculature, but it carries with it the risks of local vascular damage, systemic reactions, transient neurologic deficits, permanent neurologic compromise, and even death.
P M, Ruggieri +3 more
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PORTAL MAGNETIC RESONANCE ANGIOGRAPHY
Magnetic Resonance Imaging Clinics of North America, 1993MR angiography has shown definite clinical use in the portal venous system. Methods have been developed for noninvasive assessment of portal venous anatomy and blood flow using a variety of techniques. Time-of-flight techniques for portal angiography and both time-of-flight and phase-contrast techniques for flow measurement are reviewed.
J P, Finn, B, Siewert, M, Mueller
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Cerebral magnetic resonance angiography
Neurological Research, 1992Magnetic resonance angiography (MRA) is an accurate non-invasive tool for imaging the cerebral vessels. It provides morphologic information about the cerebral vessels relying on blood flow as the physical basis for generating contrast between stationary tissues and moving spins.
Mattle HP, Edelman RR
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Cardiothoracic Magnetic Resonance Angiography
Current Problems in Diagnostic RadiologyCatheter-based angiography is regarded as the clinical reference imaging technique for vessel imaging; however, it is invasive and is currently used for intervention or physiologic measurements. Contrast enhanced magnetic resonance angiography (MRA) with gadolinium-based contrast agents can be performed as a three-dimensional (3D) MRA or as a time ...
Murat Kocaoglu +3 more
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Magnetic resonance angiography.
The British Journal of Radiology, 1997Magnetic resonance angiography (MRA) permits the non-invasive visualization of blood flow through the effects of moving spins on the magnetic resonance signal. MRA techniques can be divided into two main classifications depending upon the primary effect responsible for contrast in the image.
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Magnetic resonance pulmonary angiography
Coronary Artery Disease, 1999Just recently, use of magnetic resonance imaging for thoracic investigations has become increasingly appealing. This resurgence has been triggered by the enormous improvements in image quality with the development of scanners with faster data-acquisition capabilities and the routine use of contrast agents.
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Magnetic resonance angiography.
Current opinion in radiology, 1992Literature of the past year contains several worthwhile papers describing the application of MR angiography techniques to imaging of the vascular system. MR angiography has been performed with two-dimensional time-of-flight, two-dimensional phase-contrast, and three-dimensional time-of-flight techniques.
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Magnetic Resonance Angiography
2013The clinical use of magnetic resonance angiography (MRA) has rapidly expanded as technological advances in both hardware and imaging techniques overcome previous limitations. This is particularly true for imaging of patients with congenital heart disease (CHD), who are often younger and frequently require continued, lifelong imaging follow-up.
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Body Magnetic Resonance Angiography
Seminars in Roentgenology, 2009Hong Lei, Zhang +3 more
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