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Coronary MRA: Technical Advances and Clinical Applications

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机构: [1]Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China 100053 [2]Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Davis, Suite G-140, Los Angeles, CA 90048, USA
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关键词: 3 0 Tesla Coronary artery disease Coronary magnetic resonance angiography Whole-heart

摘要:
Magnetic resonance angiography (MRA) has become a routine clinical tool to evaluate arteries in the head and neck, abdomen, and extremities. However, coronary MRA (CMRA) is a more challenging task. A number of factors have hindered its progress, including: 1) the motion of the heart during cardiac and respiratory cycles; 2) the highly tortuous courses; and 3) the small sizes of coronary arteries. It is important to have an appropriate balance between signal-to-noise ratio (SNR), imaging speed, and spatial resolution when determining imaging parameters of CMRA. Whole heart CMRA at 1. 5 T has been successfully introduced as a method of choice that can provide visualization of all three major coronary arteries in a single 3D volume. Recent single and multicenter studies suggest that 1. 5 T whole heart CMRA can eliminate the need for diagnostic coronary catheterization in many patients at risk of coronary artery disease. 3. 0 T cardiovascular MR has become an area of active research in recent years. Contrast-enhanced coronary MRA at 3. 0 T improves SNR and contrast-to-noise ratio and shows high accuracy in the detection of significant coronary artery stenoses. © 2011 Springer Science+Business Media, LLC.

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大类 | 4 区 医学
小类 | 4 区 核医学
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第一作者机构: [1]Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China 100053
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通讯机构: [2]Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Davis, Suite G-140, Los Angeles, CA 90048, USA
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