In comparison to other techniques, high resolution ultrasound has proved to be a good method for clinical imaging of muscles. By free selection of the scan plane and multidimensional viewing it is possible to represent each muscle from origin to insertion and to observe them during function. Pathology produces different types of echogenity. By imaging an EMG needle electrode the exact position within the muscle can be demonstrated. The result of the EMG study can therefore be related to small individual muscles or muscle segments, which are below the size suitable for clinical examination.
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