Siemens Healthcare GmbH;NorthShore University HealthSystem
发明人:
Shivraman Giri,Robert R. Edelman,Ioannis Koktzoglou,Himanshu Bhat
申请号：
US15332107
公开号：
US10517490B2
申请日:
2016.10.24
申请国别(地区):
US
年份:
2019
代理人:
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.
