Application of dual energy cerebral arteries computed tomographic angiography in diagnosis of cerebral aneurysm
10.3760/cma.j.issn.1673-4904.2014.27.006
- VernacularTitle:双能量脑动脉CT血管造影在脑动脉瘤诊断中的应用
- Author:
Li SUN
;
Yanrui ZHANG
;
Yan LIU
;
Jianghong LI
- Publication Type:Journal Article
- Keywords:
Densitometry,X-ray;
Intracranial aneurysm;
Angiography,digital subtraction
- From:
Chinese Journal of Postgraduates of Medicine
2014;37(27):15-17
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the value of dual energy cerebral arteries computed tomographic angiography (CTA) in diagnosis of cerebral aneurysm.Methods As a gold standard of digital subtraction angiography (DSA) findings,the dual energy cerebral arteries CTA imaging features of 30 cases confirmed by DSA for cerebral aneurysm were retrospectively analyzed.The diagnosis accuracy of cerebral aneurysm between dual energy cerebral arteries and DSA was compared.Results Dual energy cerebral arteries CTA could display the direct signs of cerebral aneurysms,it played better in the signs of aneurysm of the siphon segment of internal carotid artery than that by conventional cerebral arteries CTA.The measurement of the size and neck by dual energy cerebral arteries CTA had good agreement to DSA,there was no statistical difference (P ＞ 0.05).The radiation dose of dual energy cerebral arteries CTA was 19.1-25.4(21.7 ± 0.5)mSv.Conclusion The dual energy cerebral arteries CTA can show the size and neck of cerebral aneurysm clearly,has high value in clinical application of the diagnosis of cerebral aneurysm.
