Abstract #0283

Myocardial T2 mapping using a Black-blood hEart-rate Adaptive T2-prepared bSSFP (BEATS) sequence

Chengyan Wang^1,2, Jihye Jang^1,3, Ahmed Fahmy^1,4, Jinkyu Kang¹, Beth Goddu¹, Sophie Berg¹, Jue Zhang², Xiaoying Wang^2,5, Warren J. Manning^1,6, and Reza Nezafat¹

¹Department of Medicine (Cardiovascular Division), Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States, ²Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China, ³Department of Computer Science, Technical University of Munich, Munich, Germany, ⁴Biomedical Engineering Department, Cairo University, Giza, Egypt, ⁵Department of Radiology, Peking University First Hospital, Beijing, China, ⁶Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States

Quantification of T2 in areas bordering myocardium and blood pool is challenging due to partial volume errors. Blood signal suppression would effectively reduce partial volume effects and improve image contrast at the blood-myocardium boundaries. This study proposed a Black-blood hEart-rate Adaptive T2-prepared bSSFP (BEATS) sequence for myocardial T2 mapping to improve blood-myocardial border definition. Both phantom and in vivo studies proved the advantages of BEATS sequence compared to T2prep-bSSFP T2 mapping. The proposed BEATS sequence efficiently suppresses the blood signal, resulting in better definition of blood/myocardium border by reducing the impact of partial volume effect in T2 measurements, which improves the assessment of edema post myocardial infarction.

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