Diagnostic accuracy of dual-energy CT angiography in patients with intracranial aneurysm: Meta-analysis
10.13929/j.1003-3289.201704006
- VernacularTitle:Meta分析评价双能量头颅CTA诊断颅内动脉瘤准确性
- Author:
Maoxue WANG
1
;
Mingquan LI
;
Song LUO
Author Information
1. 泰康仙林鼓楼医院医学影像科
- Keywords:
Aneurysm;
Tomography,X-ray computed;
Angiography;
Meta-analysis
- From:
Chinese Journal of Medical Imaging Technology
2018;34(1):35-38
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the diagnostic value of dual-energy CTA in detection of intracrania[aneurysms by using Meta-analysis.Methods Taking "Dual energy"," intracranial aneurysms" or "subarachnoid hemorrhage" as key words,related literatures of diagnostic accuracy of intracrania[aneurysms by using dual-energy CTA compared with DSA were extracted from Wanfang database,CNKI,Chinese biomedical database and PubMed from January 2006 to January 2017.The quality of included literatures was assessed.MetaDISC1.4 was used for Meta-analysis to examine the heterogeneity among the studies and to analyze the diagnostic accuracy index.The forest map was drawn.The summary operating characteristic curve was analyzed.Results Fifteen studies without heterogeneity were considered for analysis.The pooled sensitivity,specificity,positive likelihood ratio and negative likelihood ratio was 0.97 (95 ％CI [0.96,0.99]),0.99 (95 ％ CI [0.97,1.00]),21.71 (95％CI [12.10,38.96]) and 0.04 (95％CI [0.03,0.07]),respectively.The value of OR was 703.4 (95％CI [303.96,1 627.74]).The area under the curve of summary ROC was 0.990 8.The maximum value (Q value) of sensitivity and specificity was 0.992 5.Conclusion Dual-energy CTA has high sensitivity and specificity in diagnosis of intracranial aneurysms,therefore can be taken as the first choice for patients with suspected intracranial aneurysms.
