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Abstract #4757

Significant Improvement of Blood Suppression in Cardiac Dark-Blood T1-TSE Imaging By Combining the T2-TSE Blood Nulling Strategy with Dummy Acquisitions for Myocardial T1-Weighting – A Comparison of Conventional and Novel TSE Techniques for Blood Signal Suppression and Overall Image Quality at 3T

Wolfgang G Rehwald1,2, Louis Klem2, Stephen Darty2, Nestor Mena2, George Gamoneda2, and Raymond J Kim2

1MR R&D Collaborations, Siemens Healthineers, Malvern, PA, United States, 2Duke Cardiovascular MR Center, Duke University, Durham, NC, United States

Cardiac dark-blood (DB) T1-turbo-spin echo (TSE) imaging frequently suffers from poor blood suppression due to its short effective TR required for good myocardial T1-weighting. We present a novel DB T1-TSE sequence that simultaneously applies a long effective TR as in T2-TSE to blood and a short effective TR as in conventional T1-TSE to myocardium, by means of dummy readouts. We ran conventional T1-TSE, T2-TSE, and novel T1-TSE sequences in 53 patients and scored the images for DB performance and overall image quality. Quality and blood suppression were drastically improved by novel T1-TSE.

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