Volume and planar gated cardiac magnetic resonance imaging: a correlative study of normal anatomy with thallium-201 SPECT and cadaver sections.
Volume and planar gated cardiac magnetic resonance imaging: a correlative study of normal anatomy with thallium-201 SPECT and cadaver sections.
复制标题
体积和平面门控心脏磁共振成像：正常解剖结构与铊 201 SPECT 和尸体切片的相关研究。
作者：
R. Go;W. Macintyre;H. Yeung;D. Kramer;M. Geisinger;W. Chilcote;C. George;J. O’Donnell;D. Moodie;T. Meaney
使用原型 0.15-T 电阻磁成像系统对 10 名受试者进行了磁共振 (MR) 门控心脏成像。利用饱和度恢复、质子 T1 加权弛豫时间脉冲序列的体积和平面成像技术产生了心脏和大血管的图像，具有精致的解剖细节，显示出与心脏尸体切片的良好相关性。左心室心肌节段也显示出与铊201心脏单光子发射计算机断层扫描图像的良好相关性。体积采集允许对不同方向的断层扫描切片进行后处理选择，以优化感兴趣的特定结构的可视化。 MR体积成像提供的出色的空间和对比度分辨率，不涉及使用电离辐射和碘造影剂，应确保其在心血管系统的诊断评估中发挥重要作用。
Magnetic resonance (MR) gated cardiac imaging was performed in ten subjects using a prototype 0.15-T resistive magnet imaging system. Volume and planar imaging techniques utilizing saturation recovery, proton Tl-weighted relaxation time pulse sequences produced images of the heart and great vessels with exquisite anatomic detail that showed excellent correlation with cadaver sections of the heart. The left ventricular myocardial segments also showed excellent correlation with the thallium-201 cardiac single photon emission computed tomography images. Volume acquisition allowed postprocessing selection of tomographic sections in various orientations to optimize visualization of a particular structure of interest. The excellent spatial and contrast resolution afforded by MR volume imaging, which does not involve the use of ionizing radiation and iodinated contrast material, should assure it a significant role in the diagnostic assessment of the cardiovascular system.