短潜伏期体感诱发电位对额顶叶肿瘤诊断价值的研究

本研究对５６例额顶叶肿瘤测定了短潜伏期体感诱发电位（ＳＬＳＥＰｓ），包括胶质瘤、脑膜瘤、恶性脑膜瘤、转移瘤等。发现额叶肿瘤的ＳＬＳＥＰｓ以Ｐ２２－Ｎ３０异常为主，顶叶肿瘤的ＳＬＳＥＰｓ以Ｎ２０－Ｎ２５异常为主。肿瘤同时累及额顶叶者则往往Ｐ２２－Ｎ３０和Ｎ２０－Ｐ２５均有异常。结果表明，Ｐ２２和Ｎ３０的神经发生源不同，两者分别起源于中央前回和中央后回。ＳＬＳＥＰｓ的测试对额顶叶肿瘤的定位诊断有较高的应用价值。

Diagnostic Value of SLSEPs in Frontoparietal Tumors

In this study, SLSEPs of 56 patients with frontoparietal tumors, including gliomas,meningiomas,malignant meningiomas, metastatic tumors and so on,were determined. It wasfund that SLSEPs of frontal tumors were abnormal mainly in P22-N30,and those of parietaltumors in N20-P25. SLSEPs of frontoparietal tumors were often abnormals in P22-N30 and N20-P25. The result of the study suggested that nervous origins of P22 and N30 were different. Theformer originated from precentral gyurs,the later from postcentral gyurs. The determinationof SLSEPs has significant value in the diagnosis of defining the sites of frontoparietal tumors.