Meeting Banner
Abstract #4260

High Efficiency Coronary MRA: Beyond the Quiescent Period

Jianing Pang1, Yuhua Chen1,2, and Debiao Li1,3

1Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States, 2Department of Computer and Information Science, University of Pennsylvania, Philadelphia, PA, United States, 3Bioengineering, University of California, Los Angeles, CA, United States

Current motion compensation strategies for whole-heart coronary MRA only accept data acquired during specific motion phases, thus significantly reduce the imaging efficiency. In this work, we developed a reconstruction framework based on 4D coronary MRA that allowed one to increase the cardiac gating efficiency by accepting cardiac phases beyond the quiescent period, while minimizing the associated cardiac motion artifacts through non-rigid motion correction. Preliminary results from healthy subjects showed that the proposed method significantly improved the imaging efficiency, aSNR, and coronary sharpness compared with images reconstructed from the quiescent period.

This abstract and the presentation materials are available to members only; a login is required.

Join Here