• Zhonghua yi xue za zhi · Feb 2007

    Comparative Study

    [3-dimension computed tomography angiography and digital subtraction angiography in diagnosis of intracranial aneurysm: a comparative study].

    • Shi-xin Yan, Tian-hao Yang, Yi-Mu Fan, Chao Tiao, Song Jin, and Long Yin.
    • Imaging Department of Huanhu Hospital, Tianjin 300060, China.
    • Zhonghua Yi Xue Za Zhi. 2007 Feb 27; 87 (8): 559-61.

    ObjectiveTo compare the appliance values off 3-dimension computed tomography (CTA) and digital subtraction angiography (DSA) in diagnosis of intracranial aneurysm (ICA).MethodsEighty-six with subarachnoid hemorrhage underwent 2-D DSA, and 3-DCTA and 3-D DSA, both including maximum intensity projection (MIP) and multiple planner reconstruction (MPR), volume rending (VR). The accuracy, misdiagnosis rate, and missed diagnosis rate of these 3 techniques were compared. No significant complication was found.ResultsNinety-four aneurysms were found in 74 patients. CTA examination obtained satisfactory MPR, MIP, and VR images in all patients. There was no significant difference in accuracy between 3D-DSA and 3D-CTA. In display of the aneurysm 3D-CTA was not significantly different from 2D-DSA in most cases. In display of the neck of aneurysm 3D-CTA was not significantly different from 3D-DSA, and these 3 techniques were both superior to 2D-DSA.Conclusion3D-CTA is the first choice examination technique for patients with subarachnoid hemorrhage. The information obtained by 2D-DSA, 3D-DSA, and 3D-CTA should be considered comprehensively.

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