Diagnostic Efficacy of 3D-DSA Angiography and 3D-CTA Angiography in Intracranial Aneurysms

ZHANG Jun; YAN Shixin

doi:10.3969/j.issn.1672-7185.2024.10.006

Abstract：Objective To explore the diagnostic efficacy of 3D-DSA and 3D-CTA for intracranial aneurysm.Methods Eighty-three suspected intracranial aneurysm patients admitted to Tianjin Huanhu Hospital from February 2022 to February 2023 were analized retrospectively.Using vascular intervention or surgical craniotomy results as the gold standard,the diagnostic efficacy of 3D-DSA and 3D-CTA for intracranial aneurysms were compared,and their ability to distinguish aneurysm size were analized further.Results 83 patients with suspected intracranial aneurysms were finally diagnosed positively in 80 cases and negatively in 3 cases through vascular intervention or surgical craniotomy,of which 37 cases had aneurysms with a diameter of less than 3 mm and 43 cases had aneurysms with a diameter of 3～5 mm.3D-DSA test results showed that 79 cases were positive,and 4 cases were negative,of which 78 cases were true positives and 2 cases were true negatives.3D-CTA test results showed that 72 cases were positive and 11 cases were negative,of which 70 cases were true positive and 2 cases were true negative.There was no difference in the positivity rate,negativity rate,sensitivity,and specificity of the two tests(P＞0.05),and the diagnostic conformity rate of intracranial aneurysms detected by 3D-DSA was significantly higher than that of 3D-CTA(P＜0.05).The detection rate of 3D-DSA was significantly higher than that of 3D-CTA for diameters of less than 3 mm(P＜0.05).And there was no difference in the detection rate of diameters of 3～5 mm between the two detection modalities(P＞0.05).Conclusion 3D-DSA showed higher efficacy in the diagnosis of intracranial aneurysm,which could significantly improve the detection rate of intracranial aneurysm,and provide a more reliable scientific basis for clinical diagnosis and treatment.