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DIAGNOSIS OF INTRACRANIAL ANEURYSM WITH 64-SLICE SPIRAL CT ANGIOGRAPHY

Yunjie Zhu

Abstract

[Objective] To estimate the value of 64-slice spiral CT angiography(CTA) in the diagnosis of intracranial aneurysm. [Methods] 48 patients with subaranoid hemorrahage(SAH) were examined with both CTA and digital subtraction angiography(DSA) . The results of two methods were compared. [Results] No aneurysm was found among eleven patients with SAH by CTA or DSA.A total of 37 aneurysms were detected by CTA in 37 patients and 38 cases were detected by DSA. Two aneurysms were missing in CTA,which were demonstrated in DSA. One aneurysms was misdiagnosed in CTA. Compared with DSA,the sensitivity and specificity of CTA on aneurysm were 94.7% and 91.7%,respectively. [Conclusion] 64-slice spiral CT angiography showed to be a quick,simple and accuracy method for diagnosing intracranial aneurysm.

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Key concepts: Medicine, Aneurysm, Radiology, Digital subtraction angiography, Angiography