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MOTION-ATTENUATED CONTRAST-ENHANCED CARDIAC MAGNETIC RESONANCE IMAGING AND RELATED METHOD THEREOF
MOTION-ATTENUATED CONTRAST-ENHANCED CARDIAC MAGNETIC RESONANCE IMAGING AND RELATED METHOD THEREOF
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机译:运动增强的对比度磁共振成像及其相关方法
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摘要
A system and method for providing a dark-blood technique for contrast-enhanced cardiac magnetic resonance, improving visualization of subendocardial infarcts or perfusion abnormalities that may otherwise be difficult to distinguish from the bright blood pool. In one technique the dark-blood preparation is performed using a driven-equilibrium fourier transform (DEFT) preparation with motion sensitizing gradients which attenuate the signal in the ventricular cavities related to incoherent phase losses resulting from non-steady flow within the heart. This dark-blood preparation preserves the underlying contrast characteristics of the pulse sequence causing a myocardial infarction to be bright while rendering the blood pool dark. When applied to perfusion imaging, this dark-blood preparation will help eliminate artifacts resulting from the juxtaposition of a bright ventricular cavity and relatively dark myocardium.
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