| 吴赤球,余丹,高坚,陈卫明,李景琦,居秀君,裘思英.周围神经干的超声定位[J].中国医学影像技术,2008,24(12):2017~2019 |
| 周围神经干的超声定位 |
| Ultrasound localization of peripheral nerves stem |
| 投稿时间：2008-05-30 修订日期：2008-09-04 |
| DOI： |
| 中文关键词: 超声检查 周围神经 电刺激 |
| 英文关键词:Ultrasonograpy Peripheral nerves Electrical stimulation |
| 基金项目:浙江省医药卫生科研基金项目(2007B193)。 |
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| 中文摘要: |
| 目的 观察周围神经干超声声像图结构特征,并验证超声引导穿刺定位神经干的准确性。方法 对20例志愿者行肌皮神经、坐骨神经、胫神经超声检查,对其中6位志愿者行肌皮神经穿刺定位,5位志愿者行胫神经穿刺定位,9例志愿者行坐骨神经穿刺定位。结果 20例志愿者均有效显示相应神经干,肌皮神经、胫神经及坐骨神经显示率为100%。横断面上周围神经干内部呈低回声,周边见膜状高回声的筛孔状结构,纵切面上表现为中等回声,内见线性平行回声的管状结构。6例肌皮神经及5例胫神经超声引导穿刺定位均一次性成功,电刺激验证神经定位准确,引起相应肌肉收缩的电流强度分别为0~0.4 mA及0.2~1.0 mA,9例坐骨神经超声引导穿刺定位一次性成功7例,二次穿刺定位成功2例,电刺激验证神经定位准确,引起相应肌肉收缩的电流强度分别为0.2~1.4 mA。结论 超声能清晰显示周围神经干的走行及结构特征,并能准确定位。 |
| 英文摘要: |
| Objective To investigate the sonographic appearance of peripheral nerve stem and to assess the accuration ultrasound localization of peripheral nerves stem in peripheral nerve blocking. Methods Twenty healthy volunteers underwent ultrasound examination of musculocutaneous nerve, tibial nerve and sciatic nerve. Ultrasound guided peripheral nerve stem blocking was performed in 6 volunteers on musculocutaneous nerve, 5 volunteers on tibial nerve and 9 volunteers on sciatic nerve. The peripheral nerve imagings and the needle advancement for nerve localization were dynamicaly recorded. Results Ultrasonography clearly detected the peripheral nerves stem that appeared as several parallel echogenic lines within two bold echogenic lines in longitudinal sections and as a reticular pattern with round hypoechoic surrounded by echogenic lines in transverse sections. The needles advanced under direct ultrasound guidance to target nevers were successfully in 6 volunteers on musculocutaneous nerve, 5 volunteers on tibial nerve and 7 volunteers on sciatic nerve by one time. Two volunteers on sciatic nerve were practiced 2 times. The intensities of current caused to corresponding muscle contract were 0-0.4 mA, 0.2-1.0 mA and 0.2-1.4 mA, respectively. Conclusion Ultraonography can provide good quality peripheral nerve stem ultrasound images and locate the nerves accurately. |
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