Abstract #0757
T1rho and T2 relaxation times in patients with knee osteoarthritis at 3 Tesla and 7 Tesla
Cory Wyatt 1 , Aditi Guha 1 , Anand Venkatachari 1 , Xiaojuan Li 1 , Roland Krug 1 , Douglas A.C. Kelley 2 , Thomas M. Link 1 , and Sharmila Majumdar 1
1
Radiology, University of California San
Francisco, San Francisco, California, United States,
2
GE
Healthcare Technologies, San Francisco, California,
United States
Twenty patients, seven without knee osteoarthritis and
thirteen with osteoarthritis, were scanned at 3T and 7T
with T1rho and T2 mapping sequences. The mean T1rho and
T2 in six cartilage compartments in the knee were
compared between the healthy controls and the patients
with osteoarthritis. Results showed more significant
differences between groups in the 7T relaxation values
compared to the 3T values, suggesting the possibility of
the use of smaller cohort sizes at 3T to detect changes
in cartilage composition.
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