【摘要】 目的:分析对比高频超声与肌电图在腕管综合征(CTS)诊断中的优缺点,减少漏诊,为临床诊断CTS提供更加准确的诊断依据。方法:对临床怀疑有CTS的48例病人(95只手),采用高频超声对腕管处(选取3点,即:腕横纹上方4 cm处、腕横纹中点处、腕管出口处,必要时加测病变神经)正中神经进行扫查,测量截面积,以>9 mm2为阳性,并与常规肌电图结果进行对比,找出高频超声与肌电图在诊断CTS中的优缺点。结果:高频超声对CTS的诊断基本与肌电图相符合,但高频超声对CTS急性期的诊断较常规肌电图敏感,在明确CTS的具体卡压部位时较肌电图有明显优势。结论:高频超声诊断CTS方便、有效、可以明确卡压部位,而且与常规肌电图相互验证、互为补充,可减少CTS的漏诊率。更多还原

【Abstract】 Objective: To assess the advantages and disadvantages of high-frequency ultrasound combined with electromyography in the diagnosis of carpal tunnel syndrome for improving the diagnosis of disease in clinic. Methods: High-frequency ultrasound was performed in 48 patients( 95 hands) suspected of carpal tunnel syndrome at the middle carpal tunnel,and the involvement areas of median nerves were measured. Positive areas was defined as over 9 mm2. Then the results were compared with findings by conventional electromyography to evaluate the advantages and disadvantages in the diagnosis of carpal tunnel syndrome by two techniques. Results: Diagnosis of carpal tunnel syndrome by high-frequency ultrasound was consistent with that by electromyography,yet high-frequency ultrasonography was more sensitive than electromyography in acute attack phase,and favorable in identifying the specifically compressed site. Conclusion: High-frequency ultrasound is a convenient and effective technique to clarify the compressed site in the diagnosis of carpal tunnel syndrome,and serves as supplement tool for electromyography to reduce misdiagnosis of this syndrome.更多还原