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Mangafodipir trisodium-enhanced magnetic resonance imaging for evaluation of pancreatic mass and mass-like lesions

World Journal of Gastroenterology 2006年第10期12卷 1603-1606页

作者： Gul Eser aydin karabacakoglu Serdar Karakose Cengiz Eser Ertugrul Kayacetin Department of Radiology Selcuk University Meram Medical Faculty KonyaTurkey Department of Internal Medicine Numune Hospital KonyaTurkey Department of Gastroenterology Selcuk University Meram Medical Faculty KonyaTurkey Co-first-authors:Gul Eser

AIM： To investigate the role of mangafodipir trisodium （MnDPDP） in focal pancreatic masses and mass-like lesions by evaluating contrast uptake features of the lesions and pancreatic parenchyma after contrast medium injection. METHODS： A total of 37 patients with pancreatic mass or mass-like lesions were examined by unenhanced and MnDPDP-enhanced magnetic resonance imaging （MRI）. RESULTS： MRI was obtained 20-40 min after infusion of MnDPDP and homogeneous contrast enhancement was observed in normal pancreas parenchyma. In patients with atrophic pancreas there was no enhancement in pancreatic parenchyma on MnDPDP-enhanced MRI. In 37 patients with 41 pancreatic masses and mass-like lesions, contrast enhancement was observed at 5 lesions on MnDPDP enhanced MRI. Three of these 5 lesions were focal pancreatitis and the other 2 were adenocarcinoma. No contrast enhancement was determined in 36 pancreatic masses and mass-like lesions in 32 patients. CONCLUSION： MnDPDP contrast-enhanced MRI, especially in cases with no parenchyma atrophy, can distinguish focal pancreatic lesion margins. Information about the function of pancreatic parenchyma can be obtained out of tumor. MnDPDP facilitates staging of pancreatic tumors by detection of metastatic lesions in the liver. In addition, diminished heteregenous uptake of MnDPDP in patients with pancreatitis may be helpful in differential diagnosis.

关键词： MnDPDP Pancreas MRI

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Mesenteric Ischemia:An unusual presentation of fistula between superior mesenteric artery and common hepatic artery

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World Journal of Gastroenterology 2004年第17期10卷 2605-2606页

作者： Ertugrul Kayacetin Serdar Karakse aydin karabacakoglu Dilek Emlik Department of Gastroenterology Meram Medical FacultySelcuk UniversityKonya-Turkey Department of Radiology Meram Medical FacultySelcuk UniversityKonya-Turkey

Chronic mesenteric ischemia is an uncommon condition associated with a high morbidity and *** reported a 36-year old women with postprandial abdominal pain due to chronic mesenteric ischemia caused by a fistula betwee... 详细信息

关键词： Adult Angiography Arterio-Arterial Fistula Female Hepatic Artery Humans Ischemia Mesenteric Artery, Superior

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Three-dimensional MR and axial CT colonography versus conventional colonoscopy for detection of colon pathologies

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World Journal of Gastroenterology 2006年第15期12卷 2345-2350页

作者： Rahime Haykir Serdar Karakose aydin karabacakoglu Mustafa Sahin Ertugrul Kayacetin Department of Radiology Selcuk University Meram Medical Faculty KonyaTurkey Department of Surgery Selcuk University Meram Medical Faculty KonyaTurkey Department of Gastroenterology Selcuk University Meram Medical Faculty KonyaTurkey

AIM： To evaluate the sensitivity and specificity of MR colonography （MRC） and CT performance in detecting colon lesions, and to compare their sensitivity and specificity with that of conventional colonoscopy. METHODS： Forty-two patients suspected of having colonic lesions, because of rectal bleeding, positive fecal occult blood test results or altered bowel habits, underwent the examinations. After insertion of a rectal tube, the colon was filled with 1000-1500 mL of a mixture of 9 g/L NaCI solution, 15-20 mL of 0.5 mmol/L gadopentetate dimeglumine and 100 mL of iodinized contrast material. Once colonic distension was achieved, three-dimensional gradient-echo （3D-GRE） sequences for MR colonography and complementary MR images were taken in all cases. Immediately after MR colonography, abdominal CT images were taken by spiral CT in the axial and supine position. Then all patients were examined by conventional colonoscopy （CC）. RESULTS： The sensitivity and specificity of MRC for colon pathologies were 96.4% and 100%, respectively. The percentage of correct diagnosis by MRC was 97.6%. The sensitivity and specificity of CT for colon pathologies were 92.8%, 100%, respectively. The percentage of correct diagnosis by CT was 95.2%. CONCLUSION： In detecting colon lesions, MRC achieved a diagnostic accuracy similar to CC. However, MRC is minimally invasive, with no need for sedation or analgesics during investigation. There is a lower percentage of perforation risk, and all colon segments can be evaluated due to multi-sectional imaging availability; intramural, extra-intestinal components of colonic lesions, metastasis and any additional lesions can be evaluated easily. MRC and CT colonography are new radiological techniques that promise to be highly sensitive in the detection of colorectal mass and inflammatory bowel lesions.

关键词： MR colonography CT colonography Colorectal mass Inflammatory bowel disease Conventional colonoscopy

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