Abstract #5173

From Bench to Bedside: Improved Detection of Spondylolysis Using 3D Cones Ultrashort Time to Echo (UTE) MR Technique

Tim Finkenstaedt^1,2, Suraj Achar³, Ibraheem Algarni³, Michael Carl⁴, Palanan Siriwanarangsun^1,5, Nirusha Abeydeera^1,6, Reni Biswas^1,6, Sheronda Statum^1,6, Christine B. Chung^1,6, and Won C. Bae^1,6

¹Department of Radiology, University of California, San Diego, School of Medicine, USA, San Diego, CA, United States, ²Department of Radiology, University Hospital Zurich, Zurich, Switzerland, ³Department of Family Medicine, University of California, San Diego, San Diego, CA, United States, ⁴General Electric Healthcare, San Diego, CA, United States, ⁵Department of Radiology, Siriraj Hospital, Bangkok, Thailand, ⁶Department of Radiology, VA San Diego Healthcare System, San Diego, CA, United States

Spondylolysis, defined as a bony defect in the pars interarticularis of the vertebral arch, is a frequent condition in the young population in which exposure to ionizing radiation is a major concern. In practice, CT imaging is performed in addition to MRI if spondylolysis is suspected. 3D Cones-based UTE MR techniques providing contrast and resolution similar to CT may have overcome the issue of conventional MR-sequences that do not yield sufficient contrast of short T2 tissues near the pars defect. Our study shows in an exemplary manner that detection of spondylolysis with UTE sequences is feasible in the clinical setting.

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