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Abstract #3229

Reproducibility of High-Resolution T1 Mapping of Human Knee Cartilage at 7T

Sidyarth Garimall 1 , Anup Singh 1 , Kevin D'Aquilla 1 , Mark Elliott 1 , Hari Hariharan 1 , and Ravinder Reddy 1

1 Radiology, University of Pennsylvania, Philadelphia, PA, United States

The objective of this study was to evaluate the reproducibility of high resolution T1ρ maps of human knee cartilage at ultra-field MRI scanners. Ten subjects were scanned, at two time points, on a 7T whole-body MRI scanner for T1ρ data of Knee cartilages. Intraclass correlation coefficient for T1ρ values in knee cartilage was statistically significant. Similarly, coefficient of variation for T1ρ values between two repetitions was under 4%, which confirm a high degree of reproducibility of T1ρ maps of knee cartilage at 7T.

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