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目的 比较多层螺旋CT灌注成像 (multisliceCT perfusionimaging ,MSCTPI)、彩色脑电地形图 (colorbrainatlas,CBA)、视觉诱发电位及其地形图 (visualevokedpotentialmapping ,VEP M )在急性脑梗死诊断中的价值。方法 2 0 0 0 - 0 8～ 2 0 0 3- 0 8河北医科大学附属第四医院神经内科对 2 7例临床诊断为急性脑梗死的患者 ,行常规CT平扫后分别进行MSCTPI、CBA、VEP M检查。结果 MSCTPI表现为与临床症状相对应的灌注缺损区 ;CBA表现为在Scale为 32时 ,病变区δ、θ频带出现局限性高功率阴影 ;VEP M表现为在曲线图中P10 0的潜伏期延长、病变侧波幅降低 ,其地形图功率值分布表现为病变部功率值较对应部位明显降低 ,分布不对称。结论 MSCTPI、CBA、VEP M联合应用 ,可弥补三种检查方法各自的不足 ,进一步提高急性脑梗死的诊断率。
Objective To compare the diagnostic value of multislice CT perfusion imaging (MSCTPI), colorbrain atlas (CBA), visual evoked potential (VEP) and topographic map (VEP M) in the diagnosis of acute cerebral infarction. Methods Twenty-seven patients with clinically diagnosed acute cerebral infarction at Department of Neurology, the Fourth Affiliated Hospital of Hebei Medical University were enrolled in this study. The patients underwent routine CT scan and were respectively subjected to MSCTPI, CBA, VEP M inspection. Results MSCTPI showed a perfusion defect area corresponding to clinical symptoms. CBA showed a localized high-power shadow in the δ and θ bands of the lesion area at a scale of 32; VEP M showed an increase in the latency of P10 0 in the graph, The lesion side amplitude decreased, the power distribution value of the topographic map showed that the power value of the lesion was significantly lower than that of the corresponding part, and the distribution was asymmetric. Conclusion The combined application of MSCTPI, CBA and VEP M can make up for the deficiencies of the three methods and further improve the diagnosis rate of acute cerebral infarction.