目的 :探讨脑磁图 (MEG)对致灶定位的临床应用价值。方法 :对临床诊断为癫的 2 5例病人进行MEG检查 ,并与磁共振图 (MRI)、脑电图 (EEG)及术中脑皮层电图 (ECoG)作比较。结果 :2 5例接受MEG检查者中 ,2 2 (88% )例可确定出致灶 ,其中 18例 (72 % )得到ECoG证实 ,4例部位不相符。另外 3例MEG未发现致灶者 ,深部电极EEG则在颞叶前内侧描记到样放电。MEG结果与ECoG对照 ,符合率为 72 %。结论 :MEG对癫患者表浅皮层致灶定位具有重要的临床应用价值 Objective: To investigate the clinical value of magnetoencephalography (MEG) in the localization of foci. Methods: Twenty-five patients with clinically diagnosed epilepsy were examined by MEG and compared with MRI, EEG and ECoG. RESULTS: Twenty-two (88%) of the 25 patients who underwent MEG examination were confirmed to have luminal lesions, of which 18 (72%) were confirmed by ECoG and 4 did not. In the other three cases, no lesions were found in MEG, and deep electrode EEG was traced to the anterior medial temporal lobe. MEG results and ECoG control, with a coincidence rate of 72%. Conclusion: MEG has an important clinical value in epileptic patients with superficial cortical aponeurosis