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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