基于“9点3面”配准方案的[PT+CT]异机三维图像融合实验  

3D-Image Fusion Experiment of Cross [PT+CT] Modality Based on Localization Registration Approach of "9-Point & 3-Plane"

作　　者：彭鳒侨[1] 丘红英[2] 董伟强[1] 刘襄平[3] 晏颖[4] 刘琦[1] 

机构地区：[1]广州医学院第一附属医院关节外科广东省矫形植入骨科重点实验室,广州510120 [2]广州医学院第一附属医院放射科CT室工程维护部,广州510120 [3]广州医学院第一附属医院核医学科PET/CT中心,广州510120 [4]广州医学院第一附属医院放射科MR室,广州510120

出　　处：《中国医疗器械信息》2011年第6期1-5,共5页China Medical Device Information

摘　　要：目的:尝试一种基于体表定位的二维图像配准方法,实现PT和CT异机三维(3D)图像的精确融合。方法:输入PT/CT原始数据后采用数字化格式转换,设计"9点3面"立体定位法进行配准,在实时工作站Mimics按照信息交互自动融合模式,通过讯号叠加技术完成图像融合。结果:以肺癌患者的躯干冠状面为实例试验[PT+CT]立体图像的异机融合,生成了同时呈现躯干结构和代谢状况的互补3D影像。结论:在[PT+CT]联机设备尚未普及尤其是[PT+CT]3D融合仍未实现的情况下,[PT+CT]异机3D融合是[PT+CT]同机2D融合技术功用的必要补充。Objective： Attempt a localization registration approach of 2-Dimension（2D） images based on somatotopic localization to realize accurate fusion from Cross Modality of 3-Dimension（3D） PT CT images.Methods： Digital format is converted after original data of PT/CT input,design cubic localization solution of ＂9-point 3-plane＂ for registration,complete image fusion at real-time workstation Mimics based on auto-fusing style of information exchanged by signal overlaid technique.Results： The fused cubic images of cross [PT＋CT] modality were practiced by coronal plane of body samples suffered by lung cancer patients,distinct complementary images of simultaneously presenting body structures and metabolism were quickly created.Conclusion： Based on the condition that double-module equipment of [PT＋CT] is not popular,particularly that its functional 3D image fusion is not implemented yet,this sort of Cross Modality [PT＋CT] of 3D fusion is an essentially technical complement for Single Modality [PT＋CT] of 2D fusion.

关 键 词：正电成像/核磁共振/计算机断层造影术 三维重建 定位配准 异机图像融合 

分 类 号：R814[医药卫生—影像医学与核医学]