Intra- And Inter-Scanner Variability of Knee Cartilage T2 in Human Knees at 3.0T: A Multivendor Comparision Study

Sharon Balamoody¹, Charles Edward Hutchinson¹, John C. Waterton^1,2, Tomos G. Williams¹, Michael Bowes³, Richard Hodgson⁴

Cartilage T2 was measured in twelve subjects with symptoms of knee osteoarthritis using Philips, Siemens and GEHC platforms at 3.0T. In knees, Philips intra-scanner R2 RMS COVs were <3% (intra-session) and 3.2-6.3% (inter-session). GE knee T2 values were systematically lower compared to the other scanners. Results from the phantom study did not predict in vivo results.