基于ECT图像的微胶囊消化道轨迹三维重建方法  

ECT-image based 3-D reconstruction method for traces of microcapsule in GI tract

作　　者：皮喜田[1,2,3] 师晓荃[1,3] 赵素文[1] 刘洪英[1,2,3] 周承文[1] 郑小林[1,2,3] 

机构地区：[1]重庆大学生物工程学院,重庆400044 [2]重庆大学光电技术及系统教育部重点实验室,重庆400044 [3]重庆大学微系统研究中心,重庆400044

出　　处：《传感器与微系统》2009年第11期25-27,30,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(30700160);重庆市自然科学基金资助项目(CSTC2006BA5005)

摘　　要：为了重建微型胶囊在人体肠道内的三维空间运动轨迹,运用核医学成像原理,通过ECT拍摄原始实验图像,在V isual C++6.0环境下编写程序,运用矩阵变换进行图像数据处理,计算出微型胶囊的三维坐标。重建出了连续时间内,微型胶囊的人体肠道运动轨迹。与人体消化道钡餐造影图片对比,重建图能够较好地描绘出肠道走向。The 3-dimisinal（3-D）traces of the microcapsule navigating are reconstructed through the gastrointestinal （GI） tract. The primitive experimental pictures of the microcapsule are taken via ECT by exploiting the imaging principle of nuclear medicine. Image and data processing is performed by matrix transform and then programmed by Visual C ＋＋ 6.0 to obtain the 3-D coordinates of the microcapsule. The traces of the microcapsule in the GI tract are reconstructed during continuous time. The results indicate that the contour of the GI tract can be better depicted by reconstruction drawings than by the barium meal picture.

关 键 词：微型胶囊 ECT图像 矩阵变换 三维空间轨迹 

分 类 号：R319[医药卫生—基础医学]