平板数字减影血管造影3D-CT功能的临床应用

Clinical application of the three-dimensional CT of the flat-panel digital subtraction angiography system

目的评价平板数字减影血管造影的旋转3D-CT功能的可操作性及临床应用价值。材料和方法对我院行介入治疗的278例患者使用INNOVA 3100平板数字减影机行旋转3D-CT血管造影检查,使用AW4.3-04工作站进行三维重建和INNOVA CT重建,对获得的图像进行影像学分析,并与临床效果比较。结果278例患者中,显示脑动脉瘤情况54例,脑动静脉畸形情况25例,评估栓塞效果27例,了解颅内情况24例;清晰显示肿瘤的供血动脉及肿瘤血管57例,在行栓塞治疗后评估栓塞效果是否达到完全栓塞24例,但旋转血管造影对肿瘤微小少血供病灶显示不好11例;观察血管病变58例,评估支架在血管内的状况21例;观察胆道病变5例;观察介入治疗中有无出血等并发症25例。结论INNOVA 3100型数字平板血管造影仪具有三维成像和断层成像功能,可行血管造影CT检查,同时获得CT和血管造影图像,易于显示异常血管和病变组织,提供全面的解剖信息,利于介入手术方案的制定及检验治疗效果,判断有无并发症的发生。

Objective To evaluate the clinical value of the three-dimensional （3D） CT module of the flat-panel digital subtraction angiography （DSA） system. Methods A retrospective analysis was conducted among 278 patients receiving examination with rotational 3D-CT of INNOVA 3100 flat-panel DSA system. AW4.3-04 workstation was used to perform the 3D reconstruction and INNOVA CT reconstruction, and the imaging data were analyzed in comparison with the clinical results. Results The 3D-CT of the fiat panel DSA system displayed the conditions of cerebral aneurysms in 54 cases, cerebral arteriovenous malformation in 25 cases, and the intracranial conditions in 24 cases. The blood supply and tumor vessels were clearly displayed in 57 cases, and the effects of embolization and endovascular stenting were evaluated in 27 and 21 cases, respectively. The rotational 3D-CT was used to evaluate complete embolization in 24 cases, and failed to display the feeding arteries of small tumors in 11 cases. The vascular lesions, biliary tract lesions, and the occurrence of hemorrhage during interventional therapy were observed in 58, 5 and 25 cases, respectively. Conclusion The 3D-CT module of the flat-panel DSA system can easily display abnormal vascular lesions and provide comprehensive anatomical information to facilitate interventional therapies and complication monitoring.