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.

公开(公告)号：US20210088611A1

公开(公告)日：2021-03-25

申请号：US17032588

申请日：2020-09-25

Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY

Inventor： Ye LI ,  Qiaoyan CHEN ,  Jo LEE ,  Chao LUO ,  Jianhong WEN ,  Chao ZOU ,  Xin LIU

IPC: G01R33/3875 ,  G01R33/44 ,  G01R33/54 ,  A61B5/055 ,  G01R33/48

Abstract: A local shimming system for magnetic resonance imaging and the method thereof, wherein the shimming method comprises the following steps: collecting B0 field map information using two-dimensional gradient echo (301); calculating and evaluating the homogeneity of B0 (302); optimizing the current of each channel shim coil (303); determining whether the minimum standard deviation value of Δf is obtained (304); outputting an optimal current combination values and setting an optimum current value corresponding to each channel of the shim coil on the current control software (305); and testing and evaluating the homogeneity of B0 to achieve the shimming goal (306).