Value and experience of 3D-CTA in surgical and interventional treatment of intracranial aneurysm

Objective To study the value of three-dimensional computed tomographic angiography(3D-CTA) in surgical treatment and interventional embolodierapy of intracranial aneurysm.Method Retrospective analysis of 74 cases with rupture of intracranial aneurysm which was treated by surgical treatment or interventional embolism in our department for past 4 years. Results The detection rate of aneurysm with 3D-CTA were completely consistent with the DSA, and the aneurysm form,location,aneurysm neck,surrounding relations,especially relations with the anterior clinoid process in 3D-CTA were consistent with the intraoperative findings.The image of 3D-CTA was more clear and intuitive compared with DSA.3D-CTA is helpful to the interventional embolism,surgical approach and the choice of aneurysm clip.Conclusion The reference value of 3D-CTA is better than DSA in understanding the form of aneurysm and its surrounding anatomy which was useful to choice therapeutic scheme in intracranial aneurysm.