基于多模图像融合理论的人眼球及眼眶肿瘤的三维重建与显示(英文)  

Three-dimensional reconstruction and display of intraocular and orbital tumors based on multi-modality image fusion theory

作　　者：管宇峰[1] 叶强[2] 宋志坚[3] 

机构地区：[1]同济大学附属第十人民医院眼科,上海200072 [2]同济大学附属第十人民医院放射科,上海200072 [3]复旦大学数字医学研究中心,上海200032

出　　处：《第二军医大学学报》2005年第8期877-880,共4页Academic Journal of Second Military Medical University

摘　　要：目的:研究CT和MRI融合技术在眼球及眼眶肿瘤中的应用。方法:对13例眼球及眼眶肿瘤的CT和MRI的二维图像通过特征点配准结合ILCP法(IterativeLocalClosestPoint)进行融合,运用RayTracing法进行三维融合图像的重建。结果:实现了人眼球及眼眶肿瘤CT和MRI三维融合图像的重建与显示,眼球及眼眶肿瘤的CT和MRI信息综合起来作为一个整体成像在同一幅图像上,立体显示了眼部正常与病变组织的三维结构,提供了眼眶的三维立体视觉,使眼眶的结构便于理解。结论:多模图像融合能使临床获取更准确和全面的诊断信息。它能帮助医师制订周密的手术方案,并且对临床教学及加强医患沟通有重要指导意义。Objective： To study the application of CT and MRI fusion technique in the diagnosis and treatment of intraocular and orbital tumors. Methods： 2D-images of 13 patients with intraocular and orbital tumors were fused by special-point registration and Iterative Local Closest Point（ILCP） method; 3D-fusion images were reconstructed by Ray Tracing method. Results：A 3D-CT-MRI fusion images of intraocular and orbital tumors were reconstructed and displayed. The CT and MRI data of intraocular and orbital tumors were displayed on the same image as a comprehensive whole, which provided a stereogram of 3D-structure of the normal and abnormal orbital tissues. Anatomical structure of the orbit was clearly visualized by 3D-CT-MRI image. Conclusion： The multi-modality fusion technique can provide more accurate and comprehensive information for clinical diagnosis of intraocular and orbital tumors, which is helpful for doctors＇ planning of surgical operations,clinical education and doctor-patient communication.

关 键 词：多模图像融合 断层摄影术 螺旋计算机 磁共振成像 三维重建 眼肿瘤 

分 类 号：R739.704[医药卫生—肿瘤]