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
Radiology and Imaging Sciences, NIH,
Bethesda, MD, United States,
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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