منابع مشابه
Magnetic Resonance Angiography Techniques
■ ■ Contrast-Enhanced Magnetic Resonance Angiography t1 Shortening phase encoding Considerations acquisition timing acquisition timing: test Bolus acquisition timing: Signal Initiated acquisition acquisition timing: Dynamic Subtraction Contrast-enhanced Magnetic resonance angiography Imaging parameters advantages of Contrast-enhanced Magnetic resonance angiography Limitations of Contrast-enhanc...
متن کاملCoronary magnetic resonance angiography.
Coronary magnetic resonance angiography (MRA) is a powerful noninvasive technique with high soft-tissue contrast for the visualization of the coronary anatomy without X-ray exposure. Due to the small dimensions and tortuous nature of the coronary arteries, a high spatial resolution and sufficient volumetric coverage have to be obtained. However, this necessitates scanning times that are typical...
متن کاملMagnetic Resonance Angiography Techniques
68 Introduction MR Imaging (MRI) depends on relaxation times T1 and T2 and spin density r. Furthermore, MRI is very sensitive to motion resulting in a variety of flow effects. On one hand, flow effects are responsible for a number of artifacts which can drastically impair the diagnostic value of the images; on the other hand, flow effects can be used advantageously to develop non-invasive techn...
متن کاملGadofosveset-enhanced magnetic resonance angiography
Gadofosveset (Vasovist, Bayer Schering Pharma AG, Berlin/Germany) is the first intravascular contrast agent approved for use with magnetic resonance angiography in the European Union, Switzerland, Turkey, Canada, and Australia. Gadofosveset reversibly binds to albumin providing extended intravascular enhancement compared wth existing extracellular magnetic resonance contrast agents. Prior to ap...
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ژورنال
عنوان ژورنال: Journal of Molecular Medicine
سال: 1994
ISSN: 0946-2716,1432-1440
DOI: 10.1007/bf00184580