论文部分内容阅读
背景:常规数字减影血管造影(digitalsubtractionangiography,DSA)存在病变血管与周围血管重叠问题,应用旋转DSA(rotationaldigitalsubtrac-tionangiography,RDSA)及三维重建(three-dimensionalreconstructedim-agesbyuseofrotationaldigitalsubtractionangiography,3D-DSA)是否能解决这一问题?目的:评价RDSA及3D-DSA技术对脑血管疾病诊断的应用意义。设计:以诊断为依据的非随机对照研究。地点和对象:2002-05/2002-07解放军北京军区总医院收治的蛛网膜下腔出血患者8例,男6例,女2例,年龄28～70岁,平均43岁。干预:所有患者均应用传统DSA,RDSA及3D-DSA技术进行检查。血管造影机使用GE公司AdventxLCV数字减影血管造影系统及MarkVProvis高压注射器。用于图像后处理的计算机为采用SunSpareUNIX系统的AW4.0三维处理工作站。图像的采集和处理通过图像存储和传输系统(picturearchiveandcommunicationsystem,PACS)连接。主要观察指标:不同技术方法获得的血管造影图像质量、颅内病变血管位置及病变结构显示情况。结果:所有患者均确诊为颅内动脉瘤。常规正侧位DSA能显示存在动脉瘤病变或可疑存在动脉瘤,仅极少数病例能明确显示瘤颈形态(2/8)和载瘤动脉与瘤体的关系(1/8)。RDSA显示病变复杂结构的能力较常规DSA明显提?
Abstract BACKGROUND: Digital angiography (DSA) has the problem of overlap of vascular lesions with peripheral blood vessels. Whether DSI (rotational DSI) and three-dimensional reconstruction (3D-DSA) can solve this problem A problem? Objective: To evaluate the application of RDSA and 3D-DSA in the diagnosis of cerebrovascular disease. Design: A non-randomized controlled study based on diagnosis. Location and Subjects: 8 cases of subarachnoid hemorrhage admitted to Beijing Military Region General Hospital of PLA from May 2002 to July 2002 were 6 males and 2 females, aged 28-70 years with an average of 43 years old. Interventions: All patients were examined using conventional DSA, RDSA and 3D-DSA techniques. Angiography machine using GE’s AdventxLCV digital subtraction angiography system and MarkVProvis high-pressure syringe. The computer used for image post-processing is AW4.0 3D processing workstation with SunSpare UNIX system. Image acquisition and processing are linked through a picture archiving and communications system (PACS). MAIN OUTCOME MEASURES: Angiographic image quality obtained with different techniques, intracranial vascular lesions and lesions revealed. Results: All patients were diagnosed as intracranial aneurysms. Conventional posterior DSA can show aneurysm lesions or suspicious aneurysms, very few cases can clearly show the tumor neck morphology (2/8) and the relationship between the parent artery and the tumor (1/8). The ability of RDSA to display complex structures of lesions is significantly higher than that of conventional DSA?