| Author/Editor | Popovič, Peter; Šurlan, Miloš; Salapura, Vladka; Kuhelj, Dimitrij; Stankovič, Milenko | |
| Title | Racionalna slikovna diagnostika mezenterične ishemije | |
| Type | članek | |
| Source | In: Blinc A, Kozak M, Šabovič M, editors. Slikovne metode v odkrivanju in zdravljenju žilnih bolezni. Letno srečanje Združenja za žilne bolezni SZD; 2005 maj; Ljubljana. Ljubljana: Združenje za žilne bolezni, | |
| Publication year | 2005 | |
| Volume | str. 237-52 | |
| Language | slo | |
| Abstract | Plain abdominal radiography, ultrasound (US), computerized tomography (CT) and magnetic resonance (MR) are noninvasive imaging techniques used in the diagnosis of patients with accute and chronic mesenteric ischaemia. Plain abdominal radiography is the first diagnostic tool employed in patients presenting with an acute abdomen which may be due to mesenteric ischaemia. The examination can rule out other causes of acute abdomen, such as hollow organ perforation, ileus and other pathologies, and, in addition, it detects changes that emphasize suspicion of mesenteric ischaemia. US shows clearly the presence of free fluid in the portal system and intestinal wall, which is compatible with extensive necrosis of the intestinal mucosa. Doppler US can demonstrate narrowing or occlusion of the arterial trunks, but cannot exclude involvement of peripheral mesenteric vessels. The examination is frequently technically hindered by the presence of gas in distended intestinal loops. CT angiography can provide more accurate information about signs and causes of mesenteric ischaemia; its specificity and sensitivity rates are 94% and 96%, respectively. Signs of mesenteric ischaemia include focal or segmental thickening of the bowel mucosa (submucosal oedema)-which may become evident after the injection of contrast agent, presence of intraperitoneal fluid, and presence of gas in the bowel mucosa and in the portal system. Mesenteric ischaemia is due to narrowing or occlusion of mesenteric arteries and veins. (Abstract truncated at 2000 characters) | |
| Descriptors | MESENTERIC VASCULAR OCCLUSION TOMOGRAPHY, X-RAY COMPUTED MAGNETIC RESONANCE ANGIOGRAPHY |