Application of dual-source CT angiography in the early diagnosis of intracranial aneurysms

Objective By analyzing the early dual-source CT angiography of patients with subarachnoid hemorrhage (SAH),to study the application of dual-source CT in the early diagnosis of intracranial aneurysms.Methods Seventy-eight cases of subarachnoid hemorrhage underwent CTA,by the surgical clipping treatment or DSA intervention.Results Among the 78 cases,CTA positive in 70 cases,suspicious in 6 cases,2 cases were negative.The 6 suspicious patients and 2 negative patients underwent DSA review,6 cases were aneurysm,2 cases were negative,false positive and false negative cases were all 2 cases.Conclusions CTA is a fast,noninvasive,simple,reliable method,it can diagnose aneurysm earlier,basically it can provide the imaging datas of the surgical clipping operation required; the diagnosis of small aneurysms still need further confirmation by DSA examination. Key words: Dual-source CT angiography;  Intracranial aneurysm;  Subarachnoid hemorrhage