Rasche V, Holz D, Schepper W
Fakultät für Physik, Universität Bielefeld, Germany.
Magn Reson Med. 1994 Nov;32(5):629-38. doi: 10.1002/mrm.1910320512.
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 a 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.
快速磁共振成像方法应在缩短扫描时间的情况下提供熟悉的对比行为。多自旋回波方法（TSE）是满足这一条件的最有前景的技术之一。尽管数据采集时间显著缩短，但由于患者运动和血流，图像质量仍可能受到伪影的影响。径向涡轮自旋回波（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不同的外观且强度较低。已对rTSE方法的对比和伪影行为进行了研究。这项新技术已应用于采集时间短于30秒的腹部成像以及与心脏触发相结合的心脏成像。
