Multiparametric MRI at high field provides comprehensive information to assess structural and functional changes that are important for clinical diagnosis and for evaluating therapies. Injuries may occur at different levels of the lumbar and thoracic cord, and the number of segments injured and their depths may vary along the spine, so it is challenging to build one universal RF coil that exhibits high-performance for all spinal cord imaging applications. We therefore developed an interchangeable RF coil system for a 9.4T small animal MRI scanner, and found the specialized coil has 2.4-fold SNR improvement compared to a commercial general-purpose sized coil.
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