Matsuoka S, Arakaki Y, Numaguchi K, Ueno S
J Neurosurg. 1978 Apr;48(4):601-8. doi: 10.3171/jns.1978.48.4.0601.
Nine patients with primary or metastatic brain tumors were examined with topographic computer display of delta activity before and after administration of dexamethasone. In six cases with primary malignant or metastatic brain tumors a diminution of delta distribution was observed following intravenous administration of dexamethasone, and no significant changes of the topographic map of the delta wave were obtained in two cases of benign brain tumor without clinical signs of increased intracranial pressure. Some of the changes of delta activities are believed to be correlated with the amount of peritumor edema. It is noteworthy that the change of focal delta activities by steroid was detected 20 minutes after administration.
9例原发性或转移性脑肿瘤患者在使用地塞米松前后接受了δ活动的地形图计算机显示检查。在6例原发性恶性或转移性脑肿瘤患者中，静脉注射地塞米松后观察到δ分布减少，而2例无颅内压升高临床体征的良性脑肿瘤患者的δ波地形图无明显变化。一些δ活动的变化被认为与肿瘤周围水肿的程度有关。值得注意的是，在给药20分钟后检测到类固醇引起的局灶性δ活动变化。
