脑血管造影三维重组中的质量控制

摘要

Objective To discuss the methods of quality control in cerebral angiography 3D reconstruction. Methods Collected 3D reconstruction images which were not consistent to the subtraction, and analyzed tie inconsistent reason. Results Size and position of FOV, contrast medium filling degree, position of aneurysm, patient's cooperation, beam-hardening effect can affect 3D reconstruction and cause artifact. Conclusion Some factors can cause artifact in 3D reconstruction, combining 3D reconstruction with 2D angiography may offer substantial benefit.%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.