Chaudhry V, Corse A M, Freimer M L, Glass J D, Mellits E D, Kuncl R W, Quaskey S A, Cornblath D R
Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD.
Neurology. 1994 Aug;44(8):1459-62. doi: 10.1212/wnl.44.8.1459.
We determined the inter- and intraexaminer reliability of nerve conduction measurements in six patients with diabetic peripheral neuropathy. Each patient was examined by six electromyographers on two separate occasions at least 1 week apart. We obtained attributes of nerve conduction at each examination and analyzed the data by analysis of variance. Intraexaminer reliability was high for 11 of 12 measurements, and interexaminer reliability was high for eight of twelve. Three of the four measurements that varied between examiners were either sensory or motor amplitudes, attributes frequently used to measure disease progression or to assess the result of therapeutic intervention. Our results suggest that longitudinal nerve conduction measurements used to assess worsening or improvement over time should optimally be performed by a single examiner to minimize the degree of variability associated with different examiners.
我们测定了6例糖尿病性周围神经病患者神经传导测量的检查者间和检查者内可靠性。每位患者由6名肌电图检查者在至少间隔1周的两个不同时间进行检查。我们在每次检查时获取神经传导的各项指标，并通过方差分析对数据进行分析。12项测量中有11项检查者内可靠性高，12项中有8项检查者间可靠性高。检查者之间存在差异的4项测量中有3项是感觉或运动波幅，这些指标常用于衡量疾病进展或评估治疗干预效果。我们的结果表明，用于评估随时间恶化或改善情况的纵向神经传导测量，最好由单一检查者进行，以尽量减少与不同检查者相关的变异性。
