Ryan Brown1, Bei Zhang1, Cem M. Deniz1, 2, Gene Young Cho1, 2, Cornel Stefanescu1, Shumin Wang3, Daniel K. Sodickson1, Graham C. Wiggins1
1Radiology, New York University School of Medicine, New York, NY, United States; 2Sackler Institute of Graduate Biomedical Sciences, New York University School of Medicine, New York, NY, United States; 3MRI Research Center, Auburn University, Auburn University, AL, United States
Musculoskeletal imaging is becoming a fruitful application at 7T, particularly for the knee and other extremities. Design of a 7T coil for shoulder imaging is more challenging due to the inability to surround the shoulder with a birdcage and the challenges of RF inhomogeneity. A 7T shoulder coil was constructed with a flexible detunable 8 element loop array for transmit and a 10 element flexible domed receive array. Applying birdcage-like phase to the transmit elements produced a serviceable transmit excitation, and SNR gains in deep cartilage of better than 2-fold were obtained compared to 3T.