MR imaging of the carpal tunnel: normal anatomy and preliminary findings in the carpal tunnel syndrome

摘要: MR imaging was performed through the carpal tunnel in 18 wrists of nine normal volunteers and compared with cryomicrotome sections from cadaver wrists. reliably imaged flexor retinaculum bones thus defined borders tunnel. In all cases median nerve seen as an ovoid structure moderate signal intensity easily distinguished tendons hands running The were separated each other by their tendon sheaths, this allowed for identification various tendons. Anatomic variations encountered included anomalous positioning origin lumbrical muscles within two, persistent arteries interposition between pollicis longus superficial to index finger one. Preliminary observations 10 patients syndrome include segmental diffuse swelli...