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.

公开(公告)号：US20250040827A1

公开(公告)日：2025-02-06

申请号：US18921953

申请日：2024-10-21

Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Inventor： Ye LI ,  Zhiguang MO ,  Xiaoping ZHANG ,  Huageng LIANG ,  Chao LUO ,  Qiaoyan CHEN ,  Changjun TIE ,  Qi CAO ,  Wen XIAO

IPC: A61B5/055 ,  A61B5/00 ,  G01R33/34 ,  G01R33/36

Abstract: A multichannel endorectal coil for prostate MRI, a system, and a working method. The coil comprises a support body provided with a winding curved surface, a plurality of first endorectal coils (1, 2, 3) wrapped around the surface of the support body, and a second endorectal coil stacked on the plurality of first endorectal coils (1, 2, 3); wherein two adjacent first endorectal coils (1, 2, 3) are decoupled by means of partial overlapping, and two non-adjacent first endorectal coils (1, 2, 3) are decoupled by providing a shared capacitor (5); the second endorectal coil comprises a first coil section and a second coil section which are in intersecting connection with one another, the first coil section and the second coil section are arranged symmetrically, and no electrical connection exists at the intersection thereof. The invention increases the number of channels, and further achieves better high-resolution imaging capabilities.