Comparative study of 64-row subtraction CTA and DSA in intracranial aneurysm

Objective: To evaluate the value of 64-row subtaction CT angiography(SCTA) and digital subtraction angiography(DSA) in diagnosis and management of intracranial aneurysms.Methods: The image findings of 54 patients with aneurysms were retrospectively analyzed with subtraction CTA and DSA,and evaluated all the images in the number of aneurysm and the display of aneurysm body,neck,position,parent artery.Results: 61 aneurysms were found in SCTA,six patients had multiple aneurysms,of which 49 saccular aneurysms and 12 fusiform aneurysms.Including one case of middle cerebral artery aneurysm DSA did not appear,other CTA and DSA diagnosis exactly.12 cases of fusiform aneurysms were clearly displayed by SCTA and DSA.49 cases of saccular aneurysms,subtraction CTA by multi-angle multi-dimensional rotation could clearly show the entire aneurysm morphology,aneurysm neck and relationship with the parent artery and proposed treatment advice,but only 39 cases of saccular aneurysm were clearly showed by DSA,8 of which could not be combined with an independent medical advice,the difference was significant.Conclusion: The 64-row subtraction CTA is an simple,noninvasive and safe method,can fully displayed intracranial aneurysms and has unique advantage in displaying the neck of aneurysm,better than DSA.64-row SCTA can be used as the preferred method for preoperative diagnosis of intracranial aneurysms.