Preliminary application of multislice helical CT angiography in intracranial aneurysms

Objective To evaluate the clinical value of multislice helical CT angiography(MSCTA)in the detection and treatment of intracranial aneurysms.Method MSCTA was performed in57patients suspected of harboring intracranial aneurysms.After all data was transferred to a workstation,we used Multiple Plane Rendering(MPR),Shaded Volume Rendering(SVR),Maximum Intensity Projection(MIP),Fly-aroundand Fly-through techniques to reconstruct2D or3D images.59patients with intracranial aneurysms were revealed and confirmed by the following surgery.Postoperative MSCTA was performed in5patients.Result59intracranial aneurysms were detected by MSCTA.Compared with digital subtrac tion angiography(DSA)and operation(including interventional neuroradiological management),the detection rate of MSCTA is100%and98%,respectively.Furthermore,the aneurysms and their surrounding structures were clearly demonstrated.MSCTA provided unique information in management of the intracranial aneurysms.Con clusion MSCTA can be used as the first choice of screening intracranial aneurysms and as an adjunct to DSA in planning of the management for intracranial aneurysms.It is very helpful in postoperative evaluation of the clipped aneurysms.