Application Value Of MRI To The Clinical Treatment Of Carpal Tunnel Syndrome

Objective:To evaluate the diagnosis and clinical value of MRI in carpal tunnel syndromeMethods:13 cases of carpal tunnel syndrome with MRI were analyzed, and the images were mainly aquired in transaxial planes at The Second Clinical Medical College of Shanxi Medical University, from January 2005 to December 2009.3 patients were male and 10 female,aged 22-60 years, average 41.6 years.10 cases with unilateral lesions,3 cases with bilateral lesions, duration 1 month-5 years. The operation was amputation of transverse carpal ligament.Then the difference of MRI with findings of surgery be compared.Results:MRI findings of carpal tunnel syndrome included:â‘ the median nerve become thickening and swelling that can be observed in T1WI, T2WI when entering in the carpal tunnel, the median nerve swelling ratio (MNSR) was 1.34-3.23, average 2.61.â‘¡when the median nerve in the carpal tunnel become flat, median nerve flattening ratio (MNFR) was 2.76-5.11, average 3.91.â‘¢different levels of high signal changes with median nerve in T2W1 can be observed.Conclusion:MRI can distinguish the contents of carpal tunnel very well, clearly show the anatomy of the carpal tunnel. MRI provides excellent soft tissue contrast and which is very sensitive to the signal change.The mild median nerve compression also can be found in MRI.The circumstances surrounding bone structurecan be observed while finding the cause of carpal tunnel syndrome. MRI has a clear diagnosis for carpal tunnel syndrome caused by the wrist factors.