Abstract #0537

DESS T2 mapping in Knee Cartilage at Supine and Standing Positions in an Upright MR Scanner

Andrew C Yung¹, Reza Nickmanesh², Piotr Kozlowski^1,3, and David R Wilson^2,4

¹UBC MRI Research Centre, University of British Columbia, Vancouver, BC, Canada, ²Centre for Hip Health and Mobility, University of British Columbia, Vancouver, BC, Canada, ³Radiology, University of British Columbia, Vancouver, BC, Canada, ⁴Department of Orthopaedics, University of British Columbia, Vancouver, BC, Canada

With the use of an upright open MR scanner, we demonstrate knee cartilage T2 mapping using DESS in a true standing position for the first time, and have shown preliminary evidence that there may be differences between loading the joint in the standing position versus the supine loaded and unloaded case. The volumetric DESS T2 maps were acquired with short acquisition time which is critical for imaging weightbearing postures, while maintaining a range of T2 values that were similar to gold-standard T2 maps generated by a multi-spin-echo sequence.

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