Abstract #2820

T1ρ imaging in 7T: evaluation of high dielectric pad for SAR reduction

Jeehun Kim^1,2, Wanyong Shin^2,3, Mei Li^1,2, and Xiaojuan Li^1,2,3

¹Biomedical Engineering, Cleveland Clinic, Cleveland, OH, United States, ²Program of Advanced Musculoskeletal Imaging (PAMI), Cleveland Clinic, Cleveland, OH, United States, ³Department of Diagnostic Radiology, Cleveland Clinic, Cleveland, OH, United States

To fully utilize the superior signal-to-noise ratio of 7T MRI for cartilage T_1ρ imaging, high specific-absorption ratio (SAR) needs to be accounted for. Previous researches showed the use of high dielectric pad could substantially decrease the SAR in 7T MRI. In this work, the effect of the use of high dielectric pad on T_1ρ imaging in terms of SAR level and T_1ρ relaxation time quantification.

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