Evaluation Of 64-slice Spiral CT Angiography In Postoperative Follow-up Of Intracranial Aneurysms

Abstract:Objective:To investigate the value of 64-slice spiral CT angiography(CTA) in the postoperative follow-up for intracranial aneurysms.Methods:From 2009.01 to 2009.11,63 patients who were operatived consecutively with aneurysm in the neurosurgery department of Affiliated Hospital of Luzhou Medical College were collected,and the 63 patients were followed-up after operative with CTA using 64-slice helical CTA of marking intravenous bolus non-ionic contrast medium(Iohexol).All images were processed with GE's AW 4.3 software in the Sun independent workstation.We used VR,MPR,SSD and MIP techniques to reconstruct two-demensional or three-demensional images.Observations were done to judge whether the aneurysm is completely obliterated,whether the parent and distal artery is stenosis, whether the parent artery is occluded,whether there was cerebral infarction,artery vasospasm,hydrocephalus and recurrent aneurysm,the relationship between the parent artery and clips and the quantity and location of clips.Results:63 patients were confirmed with intracranial aneurysm,including 68 aneurysms,and there were 2 aneurysms every one of five patients,57 patients with 1 intracranial aneurysm were treated by 1 clip,one patient with 1 intracranial aneurysm was treated by 2 clips.One patient was operated,but the aneurysm was not obliterated through CTA examination after the first operation,then the second operation was performed to readjust the clip.Anterior cerebral artery occlusion was found in one.Hydrocephalus was found in nine,the nine patients were performed ventriculo-peritoneal shunt for hydrocephalus.For the cases using 64-slice helical CTA could clearly reveal the occlusion of the aneurysms,the relationship between the parent artery and the clips and the quantity and location of aneurysm clips,the parent artery and vicinal artery are occluded,ventricle and brain matter reveal clearly.Conclusion:64-slice helical CTA can be used as postoperative follow-up tool for the aneurysms treated by titanium clips.And it is convenient,cheap and low risk.It can provide more information.