Highly efficient respiratory motion corrected dual-phase coronary MR angiography in a 3T PET-MR system

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Abstract

Respiratory motion remains a major challenge for dual-phase coronary MR angiography (CMRA). Here we propose an efficient acquisition and reconstruction scheme, that allows for inline 2D translational and offline 3D non-rigid motion-corrected systolic and diastolic CMRA using image-based navigators. Results from healthy volunteers show that motion correction improves visualization of the right and left coronary arteries in both cardiac phases. The proposed scheme potentially allows for comprehensive diagnosis of coronary artery disease using simultaneous PET-MR by acquiring coronary anatomy and left-ventricular function with the dual-phase CMRA and myocardial perfusion/viability with PET in an efficient cardiac and respiratory motion-compensated framework.
Original languageEnglish
Title of host publicationProceedings of the 25th Annual Meeting of ISMRM, Honolulu
PublisherISMRM
Pages1025
Publication statusPublished - 2017

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