Abstract #4253

Normative T1 and T2 relaxation times and measurement repeatability of abdomen organs at 3T using 2D MR Fingerprinting

Sanjay Sridaran¹, Ananya Panda², Yong Chen³, Jesse Hamilton⁴, Shivani Pahwa², Katherine Wright², Yun Jiang², Joshua Batesole², Mark Griswold^2,4, Nicole Seiberlich^2,4, and Vikas Gulani^2,4

¹School of Medicine, Case Western Reserve University, Cleveland, OH, United States, ²Radiology, Case Western Reserve University, Cleveland, OH, United States, ³Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States, ⁴Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States

T₁ and T₂ mapping of abdominal organs provides valuable information for characterization of abdominal pathologies, but is limited by technical difficulties. Previous work has demonstrated the utility of MR Fingerprinting (MRF) for abdominal relaxometry. However, there are still limited normative data for different abdominal organs. In this study, 2D MRF was applied to 22 subjects to establish normative values for abdominal organs at 3T and assess repeatability. Our results demonstrated a good agreement with the literature and repeatability of the measurement. The values obtained in this study can also serve as a reference for future clinical studies.

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