Gated cardiac magnetic resonance structural imaging: optimization by electronic axial rotation.
Gated cardiac magnetic resonance structural imaging: optimization by electronic axial rotation.
复制标题
门控心脏磁共振结构成像：通过电子轴旋转优化。
DOI：
10.1148/radiology.154.1.3155478
复制
发表时间：
1985
期刊：
影响因子：
19.7
通讯作者：
T. Meaney
中科院分区：
文献类型：
--
作者：
D. Feiglin;C. George;W. Macintyre;J. O’Donnell;R. Go;W. Pavlicek;T. Meaney
大多数磁共振成像使用身体正交轴，其中 Z 轴沿身体长度放置，X 轴和 Y 轴与身体成直角。这种方向对于心脏来说并不是最佳的。沿短心轴和长心轴的切片可视化将最好地定义心脏结构细节和功能状态。新的定向是通过为每个受试者选择磁场的电子角度来实现的，而不是试图通过改变患者的位置来近似心轴。该技术改善了比较壁段、瓣膜结构和心脏的真实四腔视图的可视化，并且还提供了心包的最佳可视化。此外，由于切片与心肌正交，因此可以从短轴方向对心室大小和心肌质量进行更准确的估计。
Most magnetic resonance imaging has used body orthogonal axes with the Z axis placed along the length of the body and the X and Y axes at right angles to the body. This orientation is not optimum for the heart; visualization of sections along the short and long cardiac axes would best define cardiac structural detail and functional status. The new orientation was accomplished by selection of electronic angulation of the magnetic fields for each subject rather than by attempting to approximate the cardiac axes by altering the position of the patient. This technique improved visualization of comparative wall segments, valvular structures, and the true four-chamber view of the heart, and also gave the best visualization of the pericardium. In addition, more accurate estimates of chamber size and myocardial mass can be made from the short-axis orientation, since the sections are orthogonal to the myocardium.