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Certain Investigation Titles on the Segmentation of Colon and Removal of Opacified Fluid for Virtual Colonoscopy
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Author(s): Gayathri Devi Krishnamoorthy (Dr. N. G. P. Institute of Technology, India)and Kishore B. (Dr. Mahalingam College of Engineering and Technology, India)
Copyright: 2019
Pages: 25
Source title:
Medical Image Processing for Improved Clinical Diagnosis
Source Author(s)/Editor(s): A. Swarnambiga (Indian Institute of Technology Madras, India)
DOI: 10.4018/978-1-5225-5876-7.ch006
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Abstract
Colorectal cancer (CRC) is a most important type of cancer that can be detected by virtual colonoscopy (VC) in the colon or rectum, and it is the major cause of death prevailing in the world. The CAD technique requires the segmentation of the colon to be accurate and can be implemented by two approaches. The first approach focuses on the segmentation of lungs in the computed tomography (CT) images downloaded from The Cancer Imaging Archive (TCIA) using clustering approach. The second method focused on the automatic segmentation of colon, removal of opacified fluid and bowels for all the slices in a dataset in a sequential order using MATLAB. The second approach requires more computational time, and hence, in order to reduce, the semiautomatic segmentation of colon was implemented in 3D seeded region growing and fuzzy clustering approach in MEVISLAB software. The approaches were implemented in multiple datasets and the accuracy were verified with manual segmentation by radiologist, and the importance of removing opacified fluid were shown for improving the accuracy of colon segments.
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