1MR R&D, Siemens Healthcare USA, Inc., Chicago, IL, United States, 2MR R&D, Siemens Healthcare USA, Inc., Columbus, OH, United States
Flow quantification on uncooperative patients
that cannot hold their breath may be performed by real-time free-breathing flow
acquisitions that generally cover multiple heart-beats. However, heart-rate
fluctuations, low SNR, and respiratory motion associated with such acquisitions
may impede flow quantification process. In this study, we are extending our
unsupervised motion correction method for real-time free-breathing cine imaging
to flow imaging, and comparing the results with gold standard ECG gated, breath-held,
segmented flow acquisition. Preliminary results indicate net forward volumes in
agreement with the reference, with comparable image quality.
