窗宽窗位自适应算法在头颈CT血管成像三维重建的应用价值  

Application potential of adaptive window width and level algorithm in 3D vascular reconstruction from head and neck CT angiography

作　　者：方丽萍 赵洪波 陶晓峰[1] FANG Liping;ZHAO Hongbo;TAO Xiaofeng(Department of Radiology,Shanghai Ninth People's Hospital,Shanghai Jiaotong University School of Medicine,Shanghai 200011,China)

机构地区：[1]上海交通大学医学院附属第九人民医院放射科,上海200011

出　　处：《中国医学物理学杂志》2025年第4期450-456,共7页Chinese Journal of Medical Physics

基　　金：国家自然科学基金(82172051);上海市卫生健康委员会卫生行业临床研究专项(202340133)。

摘　　要：目的:为了实现不同剂量对比剂的头颈血管重建出来有一致的重建效果,探讨窗宽窗位自适应算法在头颈CT血管三维重建的应用价值。方法:选取行头颈部血管CTA检查患者100例,分别对数据进行直接重建血管和应用窗宽窗位自适应算法后再重建血管,对比两组数据的重建效果。结果:对于对比剂量偏多或偏少的病例,应用窗宽窗位自适应算法调整后再重建的整体效果优于直接重建的效果,对于颅内细小血管和斑块的显示效果更佳。结论:窗宽窗位自适应算法在头颈CT血管重建中有较高的应用价值,对于斑块的突出显示、不同剂量对比剂数据的适配和颅内细小血管的显示有较好的泛化性。Objective To explore the application value of adaptive window width and level algorithm in 3D vascular reconstruction from head and neck CT angiography for achieving consistent reconstruction results at different contrast agent dosages.Methods Both direct vascular reconstruction and reconstruction after applying adaptive window width and level algorithm were conducted in 100 cases undergoing head and neck CT angiography;and the reconstruction results were compared.Results In the cases with excessive or insufficient contrast agent,the overall effect of reconstructions using adaptive window width and level algorithm was superior to that of direct reconstruction,particularly in displaying intracranial small vessels and plaques.Conclusion The adaptive window width and level algorithm has high application potential in vascular reconstruction from head and neck CT angiography,and demonstrates superior generalization in highlighting plaques,adapting to different contrast agent dosages,and displaying intracranial small vessels.

关 键 词：血管重建 自适应算法 累积分布函数 反演法 

分 类 号：R318[医药卫生—生物医学工程] TP391[医药卫生—基础医学]