公开(公告)号：US20240295619A1

公开(公告)日：2024-09-05

申请号：US18005047

申请日：2021-07-12

申请人： MRIGUIDANCE B.V.

发明人： Peter Roland SEEVINCK ,  Frank ZIJLSTRA

IPC分类号： G01R33/48 ,  G01R33/50

CPC分类号： G01R33/4828 ,  G01R33/4812 ,  G01R33/50

摘要： A method is disclosed for generating a contrast image using MRI comprising a four-echo steady state free precession (SSFP) sequence. The method comprises:



generating a pulse train of excitation pulses having a repetition time;
generating between two subsequent excitation pulses of the pulse train a first S+echo; a second S+echo; a first S−echo; and a second S−echo
sampling between the two subsequent excitation pulses the first S+echo; the second S+echo; the first S−echo; and the second S−echo;
generating the contrast image based on the sampled first S+echo, the sampled second S+echo, the sampled first S−echo, and the sampled second S−echo.