Abstract
Objective To investigate the application value of dual-source CT angiography （DSCTA） in detecting cerebral vasospasm （CVS） after aneurysmal subarachnoid hemorrhage （SAH）. Methods Thirty patients with aneurysmal SAH were performed DSCTA and digital subtraction angioffaphy （DSA）. The detection capabilities of both were compared and analyzed. Results DSCTA detected mild CVS in 7 patients among 23 low-risk patients. DSA re-examination found 2 false-positive patients. DSCTA examination revealed moderate to sever CVS in 7 high-risk patients at different time periods. DSA was regarded as a gold standard, the overall specificity, sensitivity, and accuracy of DSCTA in the detection of CVS were 88. 9%, 100%, and 93.15%, respectively.Conclusious DSCTA is an accurate, refiable, and noninvasive detection technology. It can be used in the early differential diagaosis of CVS in patients with SAH. Key words: Subarachnoid Hemorrhage; Intracranial Aneurysm; Vasospasm, Intracranial; Cerebral Angiography; Tomography, X-Ray Computed; Angiography, Digital Subtraction
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