公开(公告)号：US20200292651A1

公开(公告)日：2020-09-17

申请号：US16888882

申请日：2020-06-01

Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY

Inventor： Hairong ZHENG ,  Xin LIU ,  Chao ZOU ,  Chuanli CHENG ,  Yangzi QIAO ,  Changjun TIE

IPC: G01R33/48 ,  G01R33/50

Abstract: The present invention provides a magnetic resonance temperature imaging method and apparatus, and relates to the field of magnetic resonance. According to the magnetic resonance temperature imaging method and apparatus, accuracy and precision of a water-fat tissue temperature image at a current moment are improved by using a two-step iterative temperature estimation algorithm, a magnetic resonance signal model includes multiple fat peaks, and a fourth strength amplitude value of a water signal, a fourth strength amplitude value of a fat signal, a fourth field drift caused by a non-uniform main magnetic field, and the water-fat tissue temperature image at the current moment that minimize a difference between signal strength and signal strength before fitting are estimated.