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Abstract #0136

Ultrashort Echo Imaging (UTE) of Rotator Cuff Repair in an Ovine Model

Matthew F. Koff1, Hollis G. Potter1

1Department of Radiology and Imaging, Hospital for Special Surgery, New York, United States

The rotator cuff tendons typically display low signal on standard clinical images due to the highly ordered collagen within the tissue. Ultrashort echo (UTE) imaging creates contrast for visualization and for T2* quantitation. This study used T2* mapping to evaluate rotator cuff repair in an ovine model. Reparative surgery was performed to the supraspinatus tendon in sheep. Shoulders were scanned ex-vivo 8 weeks post-operatively. T2* values of repaired tendon were significantly longer than normal tendon. The T2* values decreased in magnitude along the length of the repair, but not significantly. This pilot study highlights the use of UTE for quantitative evaluation of soft tissue repair.