- 专利标题: MINIMIZING INTRAVASCULAR MAGNETIC RESONANCE IMAGING (MRI) GUIDEWIRE HEATING WITH SINGLE LAYER MRI TRANSMIT/RECEIVE RADIO FREQUENCY COIL
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申请号: US15923437申请日: 2018-03-16
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公开(公告)号: US20180275226A1公开(公告)日: 2018-09-27
- 发明人: Xiaoyu Yang , Tsinghua Zheng , Haoqin Zhu
- 申请人: Quality Electrodynamics, LLC
- 主分类号: G01R33/28
- IPC分类号: G01R33/28 ; G01R33/48 ; A61B5/055 ; A61M25/01 ; A61M25/09
摘要:
A method for controlling an interventional magnetic resonance imaging (iMRI) system configured to control a heating mode of an iMRI guidewire, the method comprising: controlling, during an iMRI procedure, a magnitude of an induced current in a single-layer MRI radio frequency (RF) coil used in the iMRI procedure, or a phase of the induced current by adjusting at least one of: a difference between a working frequency of a whole body coil (WBC) used in the iMRI procedure and a resonant frequency of the single layer MRI RF coil, a coil loss resistance of the single layer MRI RF coil, or a blocking impedance of an LC circuit connected in parallel with the single-layer MRI RF coil; and controlling a heating mode of the guidewire based, at least in part on the magnitude or phase.