REALTIME DESIGN OF RADIO-FREQUENCY PULSES AND GRADIENT PULSES IN MAGNETIC RESONANCE IMAGING

    公开(公告)号:US20230408612A1

    公开(公告)日:2023-12-21

    申请号:US18035141

    申请日:2021-11-04

    CPC classification number: G01R33/4836 G01R33/543 G01R33/5608

    Abstract: Disclosed herein is a medical system (100, 300) comprising a memory (110) storing machine executable instructions (120) and a convolutional neural network (122). The convolutional neural network is configured to receive as input a complex array (128) encoding a selection of at least one excitation field of view (324, 900) and in response output a radio frequency wave form (130) and multiple spatially selective gradient pulse waveforms (132). The convolutional neural network is a multi-task convolutional neural network. The execution of the machine executable instructions causes a computational system (104) to: receive (200) a selection (124) of the at least one excitation field of view; receive (202) initial pulse sequence commands (126); encode (204) the complex array using the at least one excitation field of view; receive (206) the radio frequency wave form and the multiple spatially selective gradient pulse waveforms in response to inputting the complex array into the convolutional neural network; and construct (208) modified pulse sequence commands (134) by modifying the initial pulse sequence commands with the radio frequency wave form and the multiple spatially selective gradient pulse waveforms.

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