CAJ | 학술논문

目的对比评价64层螺旋CT三维血管造影(3D-CTA)与三维数字减影血管造影(3D-DSA)对颅内动脉瘤的诊断价值.方法 28例临床怀疑颅内动脉瘤的患者均行64层螺旋CT血管造影和DSA,CT三维后处理主要包括容积重建(VR)及最大密度投影(MIP).常规二维DSA检查后,对可疑病变血管行旋转DSA检查,应用三维工作软件行3D后处理,比较3D-CTA与3D-DSA对动脉瘤显示的价值.结果 28例病例中22例CTA和DSA均显示动脉瘤并经手术或栓塞证实,其中1例CTA和DSA显示单个动脉瘤,手术证实为2个动脉瘤,1例CTA显示假阳性.3D-CTA与3D-DSA均能清楚显示动脉瘤形状、瘤径指向、瘤体直径、瘤颈、载瘤动脉、瘤体穿动脉情况,两者无明显差异.结论 64层3D-CTA在颅内动脉瘤诊断及细节显示上与3D-DSA无明显差异,一定程度上应能替代血管造影,指导临床治疗.
목적 대비평개64층라선CT삼유혈관조영(3D-CTA)여삼유수자감영혈관조영(3D-DSA)대로내동맥류적진단개치.방법 28례림상부의로내동맥류적환자균행64층라선CT혈관조영화DSA,CT삼유후처리주요포괄용적중건(VR)급최대밀도투영(MIP).상규이유DSA검사후,대가의병변혈관행선전DSA검사,응용삼유공작연건행3D후처리,비교3D-CTA여3D-DSA대동맥류현시적개치.결과 28례병례중22례CTA화DSA균현시동맥류병경수술혹전새증실,기중1례CTA화DSA현시단개동맥류,수술증실위2개동맥류,1례CTA현시가양성.3D-CTA여3D-DSA균능청초현시동맥류형상、류경지향、류체직경、류경、재류동맥、류체천동맥정황,량자무명현차이.결론 64층3D-CTA재로내동맥류진단급세절현시상여3D-DSA무명현차이,일정정도상응능체대혈관조영,지도림상치료.
Objective To compare the values of 64 -slice 3 - dimension computed tomography angiography (CTA) and 3 -dimension digital subtraction angiography (DSA) in diagnosis of intracranial aneurysm. Methods 28 patients suspected clinically with intracranial aneurysms underwent 64 -slice CTA and 3D - DSA. The post - processing of CTA included volume reconstruction (VR), maximum intensity projection(MIP). After conventional 2D-DSA, rotational DSA was performed, the VR images were obtained from 3D reconstruction workstation. The informations of aneurysms about number, positon, shape, direction, diameter, calcification ,aneurysm neck,children aneurysms,surrounding structures and parent artery etcetera were compared between 3D-CTA and 3D-DSA. Results 24 aneurysms were found in 22 patients by CTA and DSA and confirmed by operation or embolic therapy. One patient was identified having 2 aneurysms by operation, while only one aneurysm showed by CT and DSA. False positive sign of aneurysm was showed by CTA in one case. There was no significant difference in accuracy of diagnosis about the details of aneurysms such as shape, direction,diameter etcetera between 3D-DSA and 3D-CTA. Conclusion 64 -slice 3 -dimension computed tomography angiography(CTA) and 3 -dimension digital subtraction angiography (DSA) are of the similar value in the diagnosis of intracranial aneurysm,so CTA may be a good substitution of DSA in certain degree.