采用超声引导下的针定位对腓肠神经感觉神经传导研究的可重复性。

Reproducibility of sensory nerve conduction studies of the sural nerve using ultrasound-guided needle positioning.

机构信息

Support Center for Advanced Neuroimaging (SCAN), Institute for Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland.

出版信息

Muscle Nerve. 2011 Dec;44(6):873-6. doi: 10.1002/mus.22182.

DOI:10.1002/mus.22182

PMID:22102456

Abstract

INTRODUCTION

In this study we sought to evaluate the reproducibility of sensory nerve conduction studies (NCS) using ultrasound-guided needle positioning (USNP).

METHODS

Orthodromic NCS of the sural nerve using needle electrodes with USNP as well as surface electrodes were conducted twice in 20 healthy volunteers.

RESULTS

The mean sensory nerve action potential (SNAP) amplitude in the initial examination was 39.5 μV using needle electrodes with USNP, and 12.5 μV using surface electrodes (P < 0.0001). The mean SNAP amplitude in the follow-up examination was 39.2 μV using needle electrodes with USNP, and 12.4 μV using surface electrodes (P < 0.0001). The mean intraindividual change in SNAP amplitude (test-retest) was 21.2% using needle electrodes with USNP, and 24.8% using surface electrodes (P = 0.6).

CONCLUSIONS

Sensory NCS of the sural nerve using needle electrodes with USNP have reliable test-retest reproducibility and yield greater SNAP amplitudes than sensory NCS using surface electrodes.

摘要

简介

本研究旨在评估使用超声引导针定位（USNP）进行感觉神经传导研究（NCS）的可重复性。

方法

对 20 名健康志愿者进行了两次使用针电极和表面电极的超声引导下腓肠神经顺行 NCS。

结果

初始检查中，使用 USNP 的针电极的感觉神经动作电位（SNAP）幅度平均为 39.5μV，而使用表面电极的 SNAP 幅度平均为 12.5μV（P<0.0001）。使用 USNP 的针电极的后续检查中，SNAP 幅度的平均为 39.2μV，而使用表面电极的 SNAP 幅度平均为 12.4μV（P<0.0001）。使用 USNP 的针电极的 SNAP 幅度的个体内平均变化（测试-再测试）为 21.2%，而使用表面电极的 SNAP 幅度的个体内平均变化为 24.8%（P=0.6）。