Obscure gastrointestinal bleeding (OGIB) is defined as gastrointestinal bleeding from a source that cannot be identified on upper or lower gastrointestinal endoscopy. OGIB is considered an important indication for capsule endoscopy (CE). CE is particularly useful for the detection of vascular and small ulcerative lesions, conditions frequently associated with OGIB, particularly in Western count...

Helicobacter pylori infection is the most frequently seen infection worldwide. It is the most widely seen agent of gastrointestinal disease, primarily gastric disease. It causes also a wide spectrum of extra-gastrointestinal disorders. Cancer, lym-phoma, cardiovascular disease, dermatological disease , liver and gallbladder diseases, anemia, diabetes mellitus, autoimmune disease, atopy, asthma,...

Wireless capsule endoscopy (WCE) is a recently established imaging technology that requires no wired device intrusion and can be used to examine the entire small intestine non-invasively. Determining bleeding signs out of over 55,000 WCE images is a tedious and expensive job by human reviewing. Our goal is to develop an automatic obscure bleeding detection method by employing image color featur...

Lower gastro-intestinal bleeding (LGIB) is defined as a bleeding site localised in the colon or anorectum. (1) In the past, the diagnosis of LGIB has been a serious challenge for the radiology department because of its possible intermittent character, making it difficult to pinpoint the bleeding site. Patients with a LGIB will typically have undergone a long diagnostic work-up before they end u...

Portal hypertension in patients with cirrhosis is the cause of many dangerous complications, such as hepatic encephalopathy, ascites, and gastro-oesophageal variceal bleeding. Gastrooesophageal variceal bleeding is the cause of more than one-third of deaths in patients with liver cirrhosis [3]. H.pylori infection has a role in some diseases as peptic ulcer [4] portal hypertensive gastropathy [5...

· To learn the anatomy of the gastro-intestinal tract; · To learn the physiology of the gastro-intestinal tract especially with regard to nutrition; · To learn the consequences of critical illness on the function of the gastro-intestinal tract; · To learn the causes of disturbances in the balance between intestinal bacteria spp and their effects on the function of the bowel; · To learn the cons...

Portal hypertension in patients with cirrhosis is the cause of many dangerous complications, such as hepatic encephalopathy, ascites, and gastro-oesophageal variceal bleeding. Gastrooesophageal variceal bleeding is the cause of more than one-third of deaths in patients with liver cirrhosis [3]. H.pylori infection has a role in some diseases as peptic ulcer [4] portal hypertensive gastropathy [5...