Continuous table movement for peripheral MRA with matrix coils at 3.0 T
نویسندگان
چکیده
منابع مشابه
A Universal Timing Strategy for Moving Table Peripheral MRA
Introduction Single injection moving table peripheral contrast enhanced MR angiography (pMRA) is increasingly utilized for the evaluation of peripheral atherosclerotic occlusive disease (PAOD). While the majority of exams are successful, a sizable fraction are not; almost always due to lower station venous contamination. This is largely due to the tremendous inter-patient variability in arteria...
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Introduction: The proliferation and increased use of 3.0 T MR Systems offers both potential advantages and difficulties in the implementation of unenhanced MRA techniques. The increased signal-to-noise ratio (SNR) that scales linearly with the field-strength can be utilized in decreasing acquisition time, increasing spatial resolution or a combination of both. The implementation of unenhanced t...
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M. Sabati, M. L. Lauzon, R. Frayne University of Calgary, Calgary, Alberta, Canada, Seaman Family MR Research Centre, Calgary, Alberta, Canada Synopsis A large coverage is required in the study of peripheral vascular disease (PVD). In the continuously moving-table peripheral contrastenhanced MR angiography (CE MRA), the large field-of-view (FOV) is built up as a local FOVx is translated along t...
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Background ECG gated 3D single shot fast spin echo (SSFSE) sequence can be used to acquire systolic and diastolic data and the subtracted image gives the arterial blood signal. This technique, also called Fresh Blood Imaging (FBI), has been applied to image the peripheral artery without contrast infusion, in which each slice encoding (SE) step is acquired in a fixed TR (TR=n*RR). Ideally, TR sh...
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Functional perfusion imaging with a separate labeling coil located above the common carotid artery was demonstrated in human volunteers at 3 T. A helmet resonator and a spin-echo echo-planar imaging (EPI) sequence were used for imaging, and a circular surface coil of 6 cm i.d. was employed for labeling. The subjects performed a finger-tapping task. Signal differences between the condition of fi...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Magnetic Resonance
سال: 2009
ISSN: 1532-429X
DOI: 10.1186/1532-429x-11-s1-p282