Abstract #4381

Relaxometric mapping of normal tissue using magnetic resonance fingerprinting (MRF)

Enlin Qian¹, Amaresha Shridhar Konar², Tiago Fernandes³, Ramesh Paudyal², Amita Shukla-Dave^2,4, Lawrence Schwartz⁵, and Sairam Geethanath³

¹Columbia Magnetic Resonance Research Center, Columbia University, New York, NY, United States, ²Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, United States, ³Accessible MR Laboratory, Biomedical Engineering and Imaging Institute, Dept. of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mt. Sinai, New York, NY, United States, ⁴Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, United States, ⁵Department of Radiology, Columbia University Irving Medical Center and New York Presbyterian Hospital, New York, NY, United States

Synopsis

Keywords: Muscle, MuscleWe explored the feasibility of T₁ and T₂ mapping of normal tissue (masseter muscle) in the head and neck (HN) region using magnetic resonance fingerprinting (MRF) and evaluated its repeatability. Our study included fingerprinting data from four healthy volunteers and four repeats each, along with acquiring B₀ maps. The T₁ and T₂ estimation of masseter muscle by MRF is similar to previous literature values. We report wCV<4.3% for T₁ measurements and wCV<7% for T₂ measurements for all subjects. No significant B₀ variations were observed in the masseter muscle regions.

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