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Contrast agent enhanced magnetic resonance angiography with vessel segmentation
Contrast agent enhanced magnetic resonance angiography with vessel segmentation
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机译:造影剂增强血管造影的血管造影
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摘要
A magnetic resonance angiogram (MRA) is acquired using a contrast enhancement method in which a series of low resolution NMR images are rapidly acquired during a time resolved phase of the examination in which the contrast bolus makes a first pass through the arteries and veins. Additional, high resolution NMR image data is acquired in a subsequent steady-state phase of the examination from which a high resolution NMR image is reconstructed. Segmentation of arteries, veins and background in the high resolution image is performed using information in the low resolution NMR images.
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