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Abstract #3313

Investigation of Tibiotalar Impingement Using Retrospective 3D Volume Reconstruction and a Flexible Tracking Device

Cris Lovell-Smith1, Kaywan Izadpanah2, Sebastian Gruhlke1, Julian Maclaren1, Michael Herbst1, Leonie Eisebraun1, Matthias Honal1, Maxim Zaitsev1

1Dept. of Radiology, University Medical Center, Freiburg, Germany; 2Dept. of Orthopedic and Trauma Surgery, University Medical Center, Freiburg, Germany

In this work we leverage a specially designed MR-compatible tracking system to track the unconstrained and unloaded motion of the fore-foot. Using a CINE sequence we collect 2D slices of the ankle during foot motion. Tracking data coupled with the image timestamps allows us to retrospectively sort the images to produce a number of 3D image stacks. These image stacks represent consistent 3D volumes at given points in the foot trajectory. We use the motion-sequences created using this technique to investigate tibiotalar impingement.