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Abstract #1208

High Spatial Resolution MRI of Temporo-Mandibular Joint at 7.0 Tesla Using a Modestly Shaped 8 Channel Transceiver RF Coil Array

Jan Rieger 1 , Claudia Kronnerwetter 2 , Andreas Graessl 3 , Helmar Waiczies 1 , Roman Leicht 1 , Beate Endemann 3 , Siegfried Trattnig 2 , and Thoralf Niendorf 3,4

1 MRI.TOOLS GmbH, Berlin, Berlin, Germany, 2 High Field MR Centre, Department of Biomedical Imaging und Image-guided Therapy, Medical University of Vienna, Vienna, Vienna, Austria, 3 Berlin Ultrahigh Field Facility (B.U.F.F.), Max-Delbrueck-Center for Molecular Medicine, Berlin, Berlin, Germany, 4 Experimental and Clinical Research Center, a joint cooperation between the Charit Medical Faculty a, Berlin, Berlin, Germany

Magnetic resonance imaging at 1.5 T and 3.0 T is the primary modality for the evaluation of the temporo-mandibular joint (TMJ). It remains challenging due to subtle anatomical structures and susceptibility artifacts of inner and middle ear. These constraints translate into stringent technical requirements for RF coil design. To advance the capabilities of high spatial resolution TMJ imaging this study proposes an 8 channel transmit/receive coil for dedicated MRI of the TMJ. The RF coil arrays performance and safety are evaluated in simulations. The RF coils applicability for sub-millimeter spatial resolution TMJ MRI is examined in vivo at 7.0 T.

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