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Abstract #4232

Improved myocardial contrast using novel complementary radial MR tagging technique

Zhe Wang 1,2 , A. Nasiraei Moghaddam 2,3 , Yunpeng Zou 4 , Subashini Srinivasan 1,2 , J.Paul Finn 2,5 , and Daniel B. Ennis 1,2

1 Department of Bioengineering, University of California, Los Angeles, CA, United States, 2 Department of Radiological Science, University of California, Los Angeles, CA, United States, 3 Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran, 4 4. Sino-Dutch Biomedical and Information Engineering School, Northeastern University, Shenyang, Liaoning, China, 5 Biomedical Physics Interdepartmental Program, University of California, Los Angeles, CA, United States

Complementary radial tagging (CRT) generates radial tags with enhanced contrast throughout the entire cardiac cycle. CRT is potentially useful for measuring left ventricular (LV) contraction and torsion especially during late systole and early to late diastole. The previous CRT method was validated to work in >92% of clinic cases, but required a table position shift and the CRT pattern was non-ideal for some patients. Our objective was to develop a new CRT method that incorporates continuous RF phase adjustments to improve that CRT pattern. The new method generates an excellent CRT pattern without the need for a table shift.

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