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Abstract #0849

High Resolution Bilateral Hip Joint Imaging at 7 Tesla Using Fast Multi-ROI B1 Shim Methods

Jutta Ellermann1,2, Ute Goerke2, Pierre-Francois Van de Moortele2

1University of Minnesota Medical School, Minneapolis, MN, United States; 2Center for Magnetic Resonance Research, Minneapolis, MN, United States

Recent advances in orthopedic surgery allow for successful treatment of subtle developmental, often bilaterally occurring hip joint abnormalities. Femoroacetabular impingement (FAI) typically causes labral tears and chondral lesions. Clinical unilateral studies at 1.5 and 3T often use intraarticular Gadolinium. In this preliminary study, we demonstrate that high resolution, high contrast/noise images can be obtained at 7 T without contrast enhancement, both hips being imaged simultaneously despite of transmit B1 distortion at very high field. Key components include the use of a transceiver RF coil array together with fast, low SAR B1+ shim methods, which could become standard components in 7T imaging protocols.