RADIAL TURBO SPIN-ECHO IMAGING
RADIAL TURBO SPIN-ECHO IMAGING
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DOI：
10.1002/mrm.1910320512
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发表时间：
1994-11-01
影响因子：
3.3
通讯作者：
SCHEPPER, W
中科院分区：
文献类型：
--
作者：
RASCHE, V;HOLZ, D;SCHEPPER, W
快速MR成像方法应在缩短的扫描时间内提供熟悉的对比度行为。多自旋回波方法（TSE）是满足这一条件的最有前途的技术之一。尽管数据采集时间显著缩短，但图像质量仍可能受到患者运动和血流造成的伪影的影响。径向快速自旋回波（rTSE）方法结合了TSE方法和投影重建（PR）技术。在PR图像中，已知由患者运动或血流引起的伪影具有所有不同的外观，具有较低的强度水平。研究了rTSE方法的对比度和伪影行为。新技术已应用于腹部成像，采集时间短于30秒，并结合心脏触发心脏成像。
Fast MR imaging methods should provide a familiar contrast behavior at a reduced scan time. The multi-spin echo approach (TSE) is one of the most promising techniques satisfying this condition. Although the data acquisition time is significantly reduced, image quality may still suffer from artifacts due to patient motion and flow. The radial turbo spin echo (rTSE) approach combines TSE methods and projection reconstruction (PR) techniques. In PR images, artifacts induced by patient motion or flow are known to have al different appearance with lower level of intensity. The contrast and artifact behavior of the rTSE approach has been investigated. The new technique has been applied to abdominal imaging with acquisition times shorter than 30 s and to heart imaging in combination with cardiac triggering.