Diagnostic Accuracy of Three-dimensional CT Angiography in Intracranial Aneurysms.
10.3348/jkrs.1999.40.6.1035
- Author:
Yong Seon PYEUN
1
;
Hong Sik BYUN
;
Dong Gyu NA
;
Seung Kwon KIM
;
Chul H PAIK
;
Jong Soo KIM
;
Seung Chyul HONG
;
Jong Hyun KIM
Author Information
1. Department of Radiology, Samsung Medical Center College of Medicine, Sungkyunkwan University, Korea.
- Publication Type:Original Article ; Comparative Study
- Keywords:
Aneurysm, cerebral;
Computed Tomography(CT), angiography;
Computed Tomography(CT), comparative studies
- MeSH:
Aneurysm;
Angiography*;
Diagnosis;
Humans;
Intracranial Aneurysm*;
Retrospective Studies;
Silver Sulfadiazine;
Subarachnoid Hemorrhage;
Tomography, Spiral Computed
- From:Journal of the Korean Radiological Society
1999;40(6):1035-1040
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To determine the accuracy of three-dimensional CT angiography(CTA) in the diagnosis of intracranialaneurysms. MATERIALS AND METHODS: 3D-CTA was performed in 46 consecutive patients with subarachnoid hemorrhage orsuspected intracranial aneurysm. Images were obtained using a helical CT scanner and the SSD techinque. 3D CTAfindings were reviewed retrospectively and independently in blind fashion by two neuroradiologists. Digitalsubtraction angiography(DSA) was used as the reference standard. RESULTS: DSA revealed, in 36 patients, 40aneurysms ranging from 2mm to 12mm in maximal diameter, and negative findings in 10 patients. For observer 1, theaccuracy of 3D-CTA for all aneurysms and all patients was 85.2% and 82.7%, respectively. For observer 2, therespective figures were 94.6% and 91.9%. The agreement rates between the two observers were 86% for all aneurysmsand 87% for all patients (Kappa value 0.58, 0.59). CONCLUSION: Three-dimensional CTA is a useful imagingtechnique for the diagnosis of intracranial aneurysms, with an accuracy of over 85%
