A Novel Minimal Surface Overlay Model for the Whole Colon Wall Segmentation

To segment the boundary of both inner and outer colon wall is of much significance for colonic polyps detection in computed tomographic colonography (CTC). However, the low contrast of CT attenuation values between colon wall and the surrounding tissues limits many traditional algorithms to achieve this task. Moreover, when sticking presents between two colon walls, the task turns to be much more complicated and the threshold level set segmentation method may fail in this situation. In view of this, we present a minimum surface overlay model to extract the inner wall in this paper. Combined with the superposition model, we are able to depict the outer wall of colon in a natural way. We validated the proposed algorithm based on 60 CTC datasets. Compared with the golden standard (the manual drawing by experts), the new presented method achieved with more than 95 % overlapping coverage rate (OCR).

[1]  G. Sapiro,et al.  Geometric partial differential equations and image analysis [Book Reviews] , 2001, IEEE Transactions on Medical Imaging.

[2]  Hiroyuki Yoshida,et al.  Three-dimensional computer-aided diagnosis scheme for detection of colonic polyps , 2001, IEEE Transactions on Medical Imaging.

[3]  Ronald Fedkiw,et al.  Level set methods and dynamic implicit surfaces , 2002, Applied mathematical sciences.

[4]  Michael E. Zalis,et al.  Digital subtraction bowel cleansing for CT colonography using morphological and linear filtration methods , 2004, IEEE Transactions on Medical Imaging.

[5]  I. Bitter,et al.  Detection of Colon Wall Outer Boundary and Segmentation of the Colon Wall Based on Level Set Methods , 2006, 2006 International Conference of the IEEE Engineering in Medicine and Biology Society.

[6]  I. Buvat,et al.  Partial-Volume Effect in PET Tumor Imaging* , 2007, Journal of Nuclear Medicine.

[7]  Ronald M. Summers,et al.  Colonic wall thickness using level sets for CT virtual colonoscopy visual assessment and polyp detection , 2007, SPIE Medical Imaging.

[8]  Chong-Sze Tong,et al.  Texture Classification Using Refined Histogram , 2010, IEEE Transactions on Image Processing.

[9]  Chunming Li,et al.  Distance Regularized Level Set Evolution and Its Application to Image Segmentation , 2010, IEEE Transactions on Image Processing.

[10]  Zhengrong Liang,et al.  A shape constrained MAP-EM algorithm for colorectal segmentation , 2013, Medical Imaging.

[11]  Zhengrong Liang,et al.  Integration of 3D scale-based pseudo-enhancement correction and partial volume image segmentation for improving electronic colon cleansing in CT colonograpy. , 2014, Journal of X-ray science and technology.