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Abstract #1108

Imaging of the Brachial Plexus using a 3D Dixon-TSE Pulse Sequence with Blood Vessel and CSF Signal Suppression: Preliminary Experience in Children

Barbara Cervantes1, Amber L. Pokorney2, Jan S. Kirschke3, Patricia Cornejo2, Jeffrey H. Miller2, Dimitrios C. Karampinos1, and Houchun Harry Hu2

1Department of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, Technische Universitat Munchen, Munich, Germany, 2Department of Radiology, Phoenix Children's Hospital, Phoenix, AZ, United States, 3Department of Neuroradiology, Klinikum rechts der Isar, Technische Universitat Munchen, Munich, Germany

We demonstrate the clinical feasibility and utility of a 3D Dixon TSE sequence in imaging the brachial plexus nerves in children. The employed high spatial resolution MR Neurography (MRN) technique utilizes a refocusing flip angle train to maximize nerve signal and to suppress cerebrospinal fluid signal. Additionally, a T2-preparation with motion-sensitizing gradients was employed to suppress flowing blood signal and Dixon-based chemical-shift water-fat imaging was used to suppress fat signal in the head, neck, and chest. We illustrate this MRN technique in delineating the brachial plexus nerves and associated pathological conditions in 25 pediatric patients (age range: 6 months-21 years).

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