Abstract #0656

New insights into the predilection sites of Juvenile Osteochondritis Dissecans using Quantitative Susceptibility Mapping

Jutta Ellermann¹, Casey P Johnson², Luning Wang³, Ferenc Toth⁴, Kevin Shea⁵, Cathy Carlson⁶, and Mikko J Nissi^7,8

¹Radiology, University of Minnesota, Minneapolis, MN, United States, ²Radiology, CMRR, University of Minnesota, ³University of Minnesota, ⁴College of Veterinary Medicine, University of Minnesota, ⁵St. Lukes Orthopaedics, Boise, ID, ⁶College of Veterinary Medicine, University of Minnesota, St. Paul, MN, ⁷Department of Applied Physics, University of Eastern Finland, ⁸Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland

The unique utilization of tissue-inherent MRI contrast using QSM for depicting the intraepiphyseal vascular supply provides high resolution and accuracy without using exogenous contrast making it a noninvasive tool for future in vivo studies. A better understanding of the development of the epiphyseal cartilage vascularity during skeletal maturation may shed light on the etiology of many developmental diseases, such as Juvenile Osteochondritis Dissecans that are precursors to osteoarthritis.

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