CINE CARDIAC VIABILITY IMAGING BY IMAGE FUSION OF MRI TAGGING AND DELAYED HYPER-ENHANCEMENT IMAGES

Delayed-hyperenhancement(DHE) MRI provides a viability image at single heartphase. Obtaining cine DHE images, however, would allow for evaluating both viability and wall motion information from a single set of images, which could be useful for measuring myocardial contractility and for treatment prognosis. However, obtaining cine viability images requires repeatedly playing the DHE sequence with different trigger delays, which increases scan-time. In this study, we propose a new technique for generating cine viability images without additional scan-time. The technique is based on measuring myocardial motion field from the tagged images, which is used to generate DHE images throughout the cardiac cycle.

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