The application value of 3D-DSA in diagnosis and treatment of intracranial small aneurysm

YANG Wei-wei; FAN Wen-hui; DU Bo-lin; HU Qing-hua; LUO Ju-ping

Abstract：Objective To investigate the roles of 3D‐DSA in diagnosis and guiding treatment of intracranial small aneu‐rysms .Methods 86 cases of presumedly spontaneous subarachnoid hemorrhage and cerebral aneurysms patients under‐went conventional DSA examination ,and 3D‐DSA technology was applied .We compared the detection rate between con‐ventional DSA examination and 3D‐DSA examination in intracranial small aneurysm patients , simultaneously analyzed whether 3D‐DSA examination was more preferential for the presumed intracranial aneurysm patients .Results Conven‐tional DSA examination revealed 75 aneurysms among 57 cases ,including 39 casesm of the diameter of aneurysm ≤ 5 mm , 36 cases of the diameter > 5 mm in .3D‐DSA found 86 aneurysms in 69 cases ,aneurysms diameter equal or less than in 50 cases ,longer than 5 mm in 36 cases .Moreover ,the detection rate of small aneurysms (diameter ≤ 5 mm) by 3D‐DSA ex‐amination increased 22% compared with conventional DSA .Based on 3D‐DSA examination results including the location of the aneurysm ,the aneurysm neck size and tumor relations with the aneurysm ,40 patients underwent surgical or interven‐tional treatment ,20 patients were subjected to aneurysm surgery ,13 patients to embolization ,and 7 patients to emboliza‐tion treatment with stent .Conclusion In comparison to conventional DSA examination ,3D‐DSA examination can signifi‐cantly increase the detection rate of intracranial aneurysms tiny rate .Due to the advantages in demonstrating the size of the aneurysm neck ,the aneurysm and tumor structure ,3D‐DSA examination is beneficial to guide the treatment of intracranial aneurysms .