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Abstract #1131

Blood Longitudinal (T1) and Transverse (T2) Relaxation Times at 1

Ai-Ling Lin1, Xia Zhao1, Peter T. Fox1, Timothy Q. Duong1

1Research Imaging Institute, University of Texas Health Science Center, San Antonio, TX, United States

Knowledge of blood T1 and T2 values are important for many MRI studies that include BOLD modeling, high spatial specificity BOLD fMRI, blood flow MRI using arterial spin labeling (ASL), and blood volume MRI using vascular space occupancy (VASO) techniques. The purpose of the present study was to determine blood T1 and T2 values at 11.7T as a function of oxygenation level (Y), temperature, hematocrit fraction (Hct) and field strength (B0).