473. The Usefulness of Gated 2D TOF MRA
نویسندگان
چکیده
منابع مشابه
TOF-MRA using multi-oblique-stack acquisition (MOSA).
PURPOSE To alleviate the intrinsic limitation of current time-of-flight magnetic resonance angiography (TOF-MRA) techniques, which are insensitive to in-plane blood flow due to the flow saturation effect. MATERIALS AND METHODS A multi-oblique-stack acquisition (MOSA) technique was proposed in this study to tackle this TOF problem by acquiring two or more TOF image stacks bearing different ori...
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A. Eissa, A. Wilman Biomedical Engineering, University of Alberta, Edmonton, AB, Canada INTRODUCTION TOF MRA has been successful at 3T (1,2) largely due to the increases in SNR and T1 relaxation times. The higher SNR at higher fields allows for higher resolution. The increase in T1 values will also allow for higher background suppression. However, increasing field also suffers from increasing R...
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Introduction: Several self-navigation techniques have been proposed to improve respiratory motion compensation in CMRA [1-3]. Compared to diaphragmatic navigators self-navigating methods do not require the use of a heart-diaphragm motion model as they allow direct measurement of cardiac motion. Motion estimation is, however, often impeded by static structures within the excited volume. In this ...
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ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 1994
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.kj00003326272