Flat Serrated Polyps at CT Colonography: Relevance, Appearance, and Optimizing Interpretation
نویسندگان
چکیده
منابع مشابه
Optimizing resection of sessile serrated polyps.
Removal of precancerous lesions during colonoscopy reduces colorectal cancer (CRC) incidence and mortality [1]. Recent data have highlighted that interval CRC occurs despite previous colonoscopy. Incomplete removal of polyps is one of the factors leading to interval CRCs [2]. Incomplete polypectomy of sessile serrated polyps (SSPs) is four-fold higher than that of conventional adenomas [3] and ...
متن کاملPerformance of CT colonography for detecting small, diminutive, and flat polyps.
The primary goal of colorectal cancer screening and prevention is the detection and removal of advanced neoplasia. Computerized tomography (CT) colonography is now well established as an effective screening test. Areas of greater uncertainty include the performance characteristics of CT colonography for detecting small (6-9 mm), diminutive (< or =5 mm), and flat (nonpolypoid) lesions. However, ...
متن کاملAutomated synthesis, insertion and detection of polyps for CT colonography
CT Colonography (CTC) is a new non-invasive colon imaging technique which has the potential to replace conventional colonoscopy for colorectal cancer screening. A novel system which facilitates automated detection of colorectal polyps at CTC is introduced. As exhaustive testing of such a system using real patient data is not feasible, more complete testing is achieved through synthesis of artif...
متن کامل[Serrated polyps and serrated polyposis syndrome].
Serrated polyps of the colorectum are a heterogeneous group of lesions with potential malignant transformation through the «serrated pathway» of carcinogenesis. The discovery of these lesions has been a paradigm shift in the concept of the adenoma-carcinoma sequence, so that up to 30% of tumors develop through this pathway. The main factors associated with an increased risk of malignancy in ser...
متن کاملSegmentation and Size Measurement of Polyps in CT Colonography
Virtual colonoscopy is a relatively new method for the detection of colonic polyps. Their size, which is measured from reformatted CT images, mainly determines diagnosis. We present an automatic method for measuring the polyp size. The method is based on a robust segmentation method that grows a surface patch over the entire polyp surface starting from a seed. Projection of the patch points alo...
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ژورنال
عنوان ژورنال: RadioGraphics
سال: 2018
ISSN: 0271-5333,1527-1323
DOI: 10.1148/rg.2018170110