Objective To evaluate the sensibility of transcranial Doppler( TCD) in predicting delayed cerebral ischemia( DCI) after ruptured aneurysm surgery,and to explore the risk factors of DCI. Methods Clinical data of 67 patients with ruptured aneurysm who received intracranial aneurysmal clipped operation were retrospectively analyzed. Receiver operator characteristic curve( ROC) and Logistic regression were adopted to analyze the diagnostic accuracy and risk factors of DCI. Results DCI occurred in 18 of all pati...