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Abstract #2616

Noncontrast T1 Mapping is independently associated with myocardial fat in Healthy African Americans

Chia-Ying Liu 1 , David A Bluemke 1 , Gary Gerstenblith 2 , Stefan L Zimmerman 2 , Ji Li 2 , Hong Zhu 2 , Shenghan Lai 2 , and Hong Lai 2

1 Radiology and Imaging Sciences, NIH, Bethesda, MD, United States, 2 Johns Hopkins School of Medicine, MD, United States

The objectives were to estimate the reference value of noncontrast T1 time on 3T MR systems and explore the factors that are associated with altered T1 relaxation times in 92 healthy AAs aged 21 years or older, without symptoms or clinical evidence of cardiovascular disease. The median native T1 time of the myocardium was 1228 ms (IQR:1200-1263). Among the factors investigated, only myocardial fat and elevated CRP (CRP>2.0mg/dL) were independently associated with T1 relaxation time.

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