正常人腕管内正中神经的超声解剖学研究及其意义

发布时间：2019-05-23 07:46

【摘要】：目的探讨腕管内正中神经的超声解剖测量方法及各项指标,为临床提供正常解剖参数。方法应用高频超声检查60侧正常人腕管段正中神经,分别测量其腕管入口、中点和出口平面的横截面积,腕管中点平面正中神经的扁平率和屈肌支持带的厚度。应用超声剪切波弹性成像技术测量30侧腕管内正中神经近1/3段、中1/3段、远1/3段的硬度值。结果腕管入口、中点、出口平面正中神经截面积分别为(0.09±0.02)、(0.08±0.02)、(0.10±0.03)cm2,不同部位截面积均值无统计学差异(P0.01);腕管中点平面正中神经的扁平率3.12±0.29;屈肌支持带厚度为(0.33±0.07)cm。正中神经腕管近段、中段、远段最高硬度的分别为(41.3±10.3)、(35.4±5.8)、(38.1±4.3)k Pa,不同部位硬度均值无统计学差异(P0.05)。结论高频超声检查为临床提供了腕管内正中神经形态学解剖参数,剪切波弹性成像提供了神经硬度参数。两者结合应用为腕管综合征的临床诊断提供超声解剖学依据。
[Abstract]:Objective to explore the ultrasonic anatomical measurement method and indexes of median nerve in carpal canal, and to provide normal anatomical parameters for clinic. Methods the median nerve of wrist canal segment was examined by high frequency ultrasound on 60 sides of normal subjects. The cross section area of the entrance, midpoint and outlet plane of carpal canal, the flattening rate of median nerve and the thickness of flexor supporting band were measured respectively. Ultrasonic shear wave elastic imaging technique was used to measure the hardness of the median nerve in 30 sides of the carpal canal from 1 to 3 segments, from 1 to 3 segments and from 1 to 3 segments. Results the cross section area of median nerve at the entrance, midpoint and outlet plane of carpal canal was (0.009 卤0.002), () 卤0.002), (0.10 卤0.003) cm2, and there was no significant difference in the mean cross section area of different parts of carpal tunnel entrance, midpoint and outlet plane (P 0.01). The flattening rate of median nerve in the midpoint plane of carpal canal was 3.12 卤0.29. the thickness of flexor supporting band was (0.33 卤0.07) cm.. The highest hardness of the wrist canal in the proximal, middle and distal segments of the median nerve was (41. 3 卤10. 3), (35.4 卤5. 8), (38.1 卤4. 3) k Pa,). There was no significant difference in the mean hardness of different parts of the median nerve carpal canal (P 0.05). Conclusion High frequency ultrasound provides morphological and anatomical parameters of median nerve in carpal canal and shear wave elastic imaging provides nerve hardness parameters. The combination of the two provides ultrasonic anatomical basis for the clinical diagnosis of carpal tunnel syndrome.
【作者单位】：宁波大学医学院附属医院创伤骨科;宁波大学医学院附属医院超声影像科;复旦大学附属华山医院手外科;
【分类号】：R445.1;R688

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