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Teniae Coli Extraction in Human Colon for Computed Tomographic Colonography Images

机译:人结肠中的Teniae大肠杆菌提取物,用于计算机断层扫描结肠摄影图像

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Teniae coli are three bands of longitudinal smooth muscle on the surface of the colon, serving as anatomically meaningful landmarks for guiding virtual colonoscopic navigation and registration. This paper presents a novel method for teniae coli extraction for CT colonography. Because teniae coli are muscles running between haustral folds, they can be extracted by analysis of fold information. In our method, the 3D colon surface is first preprocessed into a 2D flattened colon. Then a 2D Gabor filter is employed to extract the feature of haustral folds, following by a Sobel operator to enhance the fold edge. The fold center is then detected by thresholding. A path of the fold can be obtained by connecting the fold center. Teniae coli are then extracted as lines in the middle of a pair of fold paths. Experiments were carried out on 5 cases, and the normalized RMSE was 5.01% with a 4.13% standard deviation.
机译:Teniae coli是结肠表面上的三条纵向平滑肌带,可作为指导虚拟结肠镜导航和配准的解剖学有意义的标志。本文提出了一种新的方法,用于提取结肠大肠结肠炎的CT结肠造影。由于teniae coli是在腹侧褶皱之间运行的肌肉,因此可以通过分析褶皱信息来提取它们。在我们的方法中,首先将3D结肠表面预处理为2D扁平结肠。然后,使用二维Gabor滤波器提取出腹侧褶皱的特征,然后由Sobel运算符增强褶皱边缘。然后通过阈值检测折叠中心。折叠路径可以通过连接折叠中心来获得。然后在一对折叠路径的中间以线状提取Teniae coli。对5例进行了实验,标准化的RMSE为5.01%,标准偏差为4.13%。

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