- 专利标题: Data Acquisition Acceleration In Magnetic Resonance Angiography Applications Using Magnetization-Prepared Simultaneous Multi-Slice Acquisition
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申请号: US16687733申请日: 2019-11-19
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公开(公告)号: US20200085322A1公开(公告)日: 2020-03-19
- 发明人: Shivraman Giri , Robert R. Edelman , Ioannis Koktzoglou , Himanshu Bhat
- 申请人: Siemens Healthcare GmbH , NorthShore University HealthSystem
- 主分类号: A61B5/026
- IPC分类号: A61B5/026 ; G01R33/563 ; G01R33/56
摘要:
A method for producing an image representative of the vasculature of a subject using a MRI system includes the acquisition of a signal indicative of a subject' cardiac phase. During each heartbeat of the subject, image slices of a volume covering a region of interest (ROI) within the subject are acquired by applying a volume-selective venous suppression pulse to suppress (a) venous signal for an upper slice in the ROI; (b) venous signal for slices that are upstream for venous flow in the ROI; and (c) background signal from the upstream slices. Next, a slice-selective background suppression pulse is applied to suppress background signal of the upper slice. Following a quiescent time interval, a spectrally selective fat suppression pulse is applied to the entire volume to attenuate signal from background fat signal. Then, a simultaneous multi-slice acquisition of the upper slice and the upstream slices is performed.
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