Automatic Electronic Cleansing in Computed Tomography Colonography Images using Domain Knowledge
نویسندگان
چکیده
منابع مشابه
A simple image processing approach for electronic cleansing in computed tomographic colonography
The prevalence of colon cancer has seen strong demand in screening for colorectal neoplasia, and this has drawn considerable attention to the technological advances in Computed Tomographic Colonography (CTC). With the assistance of an oral contrast agent, an imaging technique known as Electronic Cleansing (EC), can affect virtual cleaning of the computed tomography (CT) images, to remove fecal ...
متن کاملElectronic cleansing in computed tomography colonography using AT layer identification with integration of gradient directional second derivative and material fraction model
BACKGROUND In computed tomography colonography images, electronic cleansing (EC) is applied to remove opacified residual materials, called fecal-tagging materials (FTM), using positive-contrast tagging agents and laxative to facilitate polyp detection. METHODS The proposed EC, EC prop , integrates the gradient directional second derivative into material fraction model to preserve submerged so...
متن کاملIrritable bowel syndrome evaluation using computed tomography colonography
AIM To evaluate the morphology of the colon in patients with irritable bowel syndrome (IBS) by using computed tomography colonography (CTC). METHODS Twelve patients with diarrhea type IBS (IBS-D), 13 patients with constipation type IBS (IBS-C), 12 patients with functional constipation (FC) and 14 control patients underwent colonoscopy following CTC. The lengths of the rectosigmoid colon, tran...
متن کاملComputed tomography colonography for colorectal cancer screening.
Colorectal cancer screening has been shown to help prevent cancer-related death. Concerns about suboptimal adherence to conventional colonoscopy has led to the search for alternative screening modalities. Computed tomography colono-graphy (CTC) is a highly sensitive and minimally invasive alternative modality. The American College of Radiology has established a standardized reporting system for...
متن کاملComputed Cleansing for CT Colonography Using a Three-Material Transition Model
Virtual colonoscopy is a non-invasive technique for the detection of polyps. Currently, a clean colon is required; as without cleansing the colonic wall cannot be segmented. Enhanced bowel preparation schemes opacify intraluminal remains to enable colon segmentation. Computed cleansing (as opposed to physical cleansing of the bowels) allows removal of tagged intraluminal remains. This paper des...
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ژورنال
عنوان ژورنال: Asian Pacific Journal of Cancer Prevention
سال: 2016
ISSN: 1513-7368
DOI: 10.7314/apjcp.2015.16.18.8351