White R D, Paschal C B, Tkach J A, Carvlin M J
Department of Radiology, Cleveland Clinic Foundation, Ohio 44195.
Top Magn Reson Imaging. 1990 Mar;2(2):31-48.
The pursuit of capabilities for the evaluation of functional aspects of cardiovascular disease by MRI has resulted in the development and implementation of a number of interesting techniques that can be performed on a conventional scanner. Some currently available techniques emphasize the production of anatomically accurate images representing different phases of the cardiac cycle; others demonstrate physical changes within the acquired data that reflect motion, such as blood flow. Magnitude data from spin-echo and gradient-echo sequences can be used to produce dynamic images of the cardiovascular system. Phase data can be used to generate flow-based images reflecting the movement of blood protons. These techniques can be applied in the evaluation of ventricular function, valve function, or functional abnormalities in either congenital cardiovascular disease or great artery disease.
通过磁共振成像（MRI）评估心血管疾病功能方面的能力的追求，已促使人们开发并实施了许多可在传统扫描仪上进行的有趣技术。目前一些可用技术强调生成代表心动周期不同阶段的解剖学精确图像；其他技术则展示采集数据内反映运动（如血流）的物理变化。自旋回波和梯度回波序列的幅度数据可用于生成心血管系统的动态图像。相位数据可用于生成反映血液质子运动的基于血流的图像。这些技术可应用于评估心室功能、瓣膜功能或先天性心血管疾病或大动脉疾病中的功能异常。
