公开(公告)号：US20180238987A1

公开(公告)日：2018-08-23

申请号：US15438417

申请日：2017-02-21

申请人： General Electric Company

发明人： Dashen Chu ,  Xiaoli Zhao ,  Zhentian Xie ,  Ty Allen Cashen ,  Zhu Li

IPC分类号： G01R33/565 ,  G01R33/341 ,  G01R33/36 ,  G01R33/58

CPC分类号： G01R33/5659 ,  G01R33/341 ,  G01R33/3621 ,  G01R33/3664 ,  G01R33/583

摘要： In one example, a method for acquiring a medical image includes activating a body radiofrequency (RF) coil in a body coil receive mode to obtain body calibration information of a subject. The method further includes, while the body RF coil is in the body coil receive mode, activating a surface RF coil in a surface coil receive mode to obtain surface calibration information of the subject, and correcting a reconstructed image with an intensity correction filter determined from the body calibration information and surface calibration information.

公开(公告)号：US20190041475A1

公开(公告)日：2019-02-07

申请号：US15670402

申请日：2017-08-07

申请人： General Electric Company

发明人： Saikat Saha ,  Zhentian Xie

IPC分类号： G01R33/345 ,  G01R33/422 ,  H01Q15/00 ,  G01R33/36 ,  G01R33/34

摘要： A MRI system includes a RF coil assembly, a gradient coil assembly disposed around the RF coil assembly, the gradient coil assembly including a RF shield, and a superconducting magnet assembly disposed around the gradient coil assembly, the superconducting magnet assembly including a vessel containing a plurality of superconducting coils. The RF coil assembly includes a plurality of RF coil elements applied on an outer surface of a hollow cylindrical RF coil former. The plurality of RF coil elements includes a plurality of rungs and a plurality of ground patches that are connected. The plurality of ground patches are spaced apart from the RF shield with a dielectric material in between, and the plurality of ground patches are capacitively coupled to the RF shield. The RF coil assembly is a TEM RF body coil.

公开(公告)号：US10466332B2

公开(公告)日：2019-11-05

申请号：US15438417

申请日：2017-02-21

申请人： General Electric Company

发明人： Dashen Chu ,  Xiaoli Zhao ,  Zhentian Xie ,  Ty Allen Cashen ,  Zhu Li

IPC分类号： G01R33/565 ,  G01R33/58 ,  G01R33/36 ,  G01R33/341

摘要： In one example, a method for acquiring a medical image includes activating a body radiofrequency (RF) coil in a body coil receive mode to obtain body calibration information of a subject. The method further includes, while the body RF coil is in the body coil receive mode, activating a surface RF coil in a surface coil receive mode to obtain surface calibration information of the subject, and correcting a reconstructed image with an intensity correction filter determined from the body calibration information and surface calibration information.