Abstract #0536

Comparison of DESS T2 Relaxation Times and Apparent Diffusion Coefficient in Articular Cartilage at 3T and 7T

Garry E Gold¹, Bragi Sveinsson², Kevin Eppersson², Akshay Chaudhari³, Marcus Alley², Daehyun Yoon², Brian A Hargreaves³, and Feliks Kogan²

¹Radiology, Bioengineering, and Orthopedic Surgery, Stanford University, Stanford, CA, United States, ²Radiology, Stanford University, Stanford, CA, United States, ³Radiology and Bioengineering, Stanford University, Stanford, CA, United States

Double-echo Steady-Sate (DESS) is an efficient 3D approach to measure cartilage thickness, T2, and apparent diffusion coefficient (ADC). We tested the DESS sequence at 3T and 7T in healthy volunteers. DESS can acquire accurate cartilage T2 and ADC values at both 3T and 7T, with more consistent ADC measurements at 7T, likely due to less image noise in the fit.

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