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Abstract #4028

Novel Technique for Assessment of Patellar Tracking During Weight-Bearing Knee Flexion Using Dynamic Upright MRI

Neeraj Kulkarni1, John Greenhalgh1, Robert Wolf1, David Chu1, Rachel Caffrey2, Brianna Elizabeth Damadian1, and Raymond Damadian1
1FONAR Corporation, Melville, NY, United States, 2Lehigh University, Bethlehem, PA, United States

Despite decades of imaging research focused on the knee, little attention has been paid to dynamic, weight-bearing knee MRI emulating the physiologic condition of the joint. Here, we utilize dynamic imaging in alternating axial and sagittal planes to capture the patellofemoral joint of one volunteer performing one cycle of knee flexion/extension. Our findings indicate that it is possible to characterize patellar tracking in both axial and sagittal planes utilizing fast imaging sequences (<2 minutes) on mid-field upright MRI. Additionally, it is possible to quantify the patellofemoral kinematics on these images using patellar flexion angle and anteroposterior patellar translation.

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