Colon capsule endoscopy (CCE) was first put into clinical practice for the evaluation of the small bowel in patients presenting with a gastrointestinal bleed unsuccessfully diagnosed by upper GI endoscopy and colonoscopy. With the recent advent of new technology, there is improved visualization of the intestinal mucosa and subsequently a higher sensitivity for identification of mural pathology,...

Background and objective: Helicobacter pylori infection is one of the most common chronic bacterial infections in the world, especially in the developing countries. This bacterium is the cause of many diseases such as lymphoma, gastritis, peptic ulcers, and stomach cancer. According to recent reports, H. pylori infection can potentially increase the risk of colon cancer. The cu...

introduction: the purpose of this study was to visualize the scientific structure of multiple sclerosis (ms) during 1999-2008 and to use scientometric indicators for analysis of ms-related scientific publications indexed in web of science database. methods: this survey tried to visualize data as a scientometric method. a total number of 17737 ms-related articles published during 1999-2008 were ...

ontology is a requirement engineering product and the key to knowledge discovery. it includes the terminology to describe a set of facts, assumptions, and relations with which the detailed meanings of vocabularies among communities can be determined. this is a qualitative content analysis research. this study has made use of ontology for the first time to discover the knowledge of vaccine in ir...

Segmental colitis associated diverticulosis (SCAD) has become increasingly appreciated as a form of inflammatory disease of the colon. Several features suggest that SCAD is a distinct disorder. SCAD tends to develop almost exclusively in older adults, predominately, but not exclusively, males. The inflammatory process occurs mainly in the sigmoid colon, and usually remains localized to this reg...

background: to determine the colon transit time (ctt) in patients complaining of functional constipation and to evaluate the correlation between abnormal transit times and the types of constipation and the correlation with age and sex. materials and methods: the signs and symptoms of 84 patients with infrequent or difficult defecation, 33 males and 51 females, with a median age of 33.7 were rec...

Spontaneous perforation of the sigmoid colon or rectom is defined as a sudden perforation of the colon in the absence of diseases such as tumors, diverticulosis or external injury. It is a very rare finding, and if neglected, results in severe peritonitis and high mortality. The causes of this rare condition are numerous, and in this case it might be due to the chronic constipation induced by a...

Virtual colonoscopy or ‘colonography’ is a patient-friendly, modern screening technique for polyps. Automatic detection of polyps can serve to assist the radiologist. This paper presents a method based on clustering the principal curvatures. Via automatic polyp detection 5/6 polyps (>5 mm) were detected at the expense of 9 false positive findings per case. For visualization, the bowel surface i...

Conformal geometry has deep roots in pure mathematics. It is the intersection of complex analysis, Riemann surface theory, algebraic geometry, differential geometry and algebraic topology. Computational conformal geometry plays an important role in digital geometry processing. Recently, theory of discrete conformal geometry and algorithms of computational conformal geometry have been developed....