首页 | 本学科首页   官方微博 | 高级检索  
     


Steady state of echo-shifted sequences with radiofrequency phase cycling.
Authors:Carl Ganter
Affiliation:Department of Diagnostic Radiology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. cganter@roe.med.tum.de
Abstract:Due to a delayed echo-formation, echo-shifted gradient echo sequences (ES-GRE) allow for an enhanced T(2)*-weighting at short repetition times. While they are in use with and without RF spoiling, analytical solutions are only known for the latter. The signal formation in the former could only be assessed in approximative form, so far. In this article an exact analytical solution is presented for TR-periodic ES-GRE sequences with RF phase cycling. Besides providing a better numerical performance, it should be useful for systematic sequence development. The relation to recent approximative solutions is discussed.
Keywords:gradient echo  steady state  RF spoiling  shifted echo
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号