脑血管造影三维重组中的质量控制  

Quality Control of Three-Dimensional Digital Subtraction Angiography in Cerebrovascular Angiography

作　　者：毛大伟[1] 杨本强[1] 朱洪峰[1] 臧磊[1] 李军[1] 

机构地区：[1]沈阳军区总医院放射科,辽宁沈阳110016

出　　处：《中国医疗设备》2013年第2期126-128,共3页China Medical Devices

摘　　要：目的探讨脑血管造影三维重组中的质量控制。方法收集三维重组结果与减影不符的图像,分析不一致产生的原因。结果采集区(FOV)位置及大小、对比剂充盈情况、动脉瘤位置、患者配合、X线硬化效应均可能产生三维重组伪影。结论三维重组结果可能与减影不符,三维重组与减影图像结合有利于做出更准确的诊断。Objective To discuss the methods of quafity control in cerebral angiography 3D reconstuction. Methods Collected 3D reconstruction images which were not consistent to the subtraction, and analyzed the inconsistent reason. Results Size and position of FOV, conwast medium filling degree, position of aneurysm, patient＇s cooperation, beamhardening effect can affect 3D reconstruction and cause artifact. Conclusion Some factors can cause artifact in 3D reconstruction, combining 3D reconsmaction with 2D angiography may offer subslantial benefit.

关 键 词：数字减影血管造影机 脑血管造影 三维重组 伪影 质量控制 

分 类 号：R816.1[医药卫生—放射医学] R543.4[医药卫生—临床医学]