"On MDCT-enteroclysis or enterography, jejunal leiomyoma usually presents as a well-circumscribed, submucosal, homogeneously enhancing spheroid or ovoid mass. On MR-enterography or enteroclysis, leiomyoma shows homogeneous and moderate signal intensity with marked enhancement after intravenous administration of contrast material . Figure 5. "
"The good soft tissue contrast and three-dimensional imaging capabilities of MRE allow observation of the mucosa and analysis of changes of peripheral structures, which increases the information gained during the diagnostic imaging of GI diseases. MRE is more sensitive to pathological changes and is free of radiation, which makes it tremendously advantageous in the diagnosis and treatment evaluation of pediatric diseases of the small intestine (3). "
[Show abstract][Hide abstract] ABSTRACT: The aim of this study was to compare magnetic resonance enterography (MRE) findings with those of video capsule endoscopy (VCE) or conventional gastrointestinal radiography (CGR) in pediatric patients with small bowel Crohn's disease. A total of 55 cases of small bowel Crohn's disease that were diagnosed through clinical, laboratory, surgical and histopathological findings were reviewed. Prior to the examination, children suspected of having other types of diseases of the small intestinal were identified. The pulse sequences included coronal T2-true-fast imaging with steady-state precession (TrueFISP) images, navigation axial and coronal T1-weighted images, T2-weighted fat-suppressed images and coronal fat-suppressed three-dimensional gradient-echo images, immediately followed by contrast-enhanced axial and coronal T1-weighted fat-suppressed images. Findings from MRE were compared with those of VCE (n=39) and CGR (n=37). MRE results exhibited a number of features characteristic to small bowel Crohn's disease, including wall thickening, mesenteric fibrofatty changes and mesenteric vasculature changes. VCE, MRE and CGR demonstrated sensitivities of 94.6, 85.7 and 71.1% with specificities of 72.7, 70 and 40%; accuracies of 89.6, 82.2 and 61.1%; positive predictive values of 92.1, 90.9 and 59.6%; and negative predictive values of 80, 58.3 and 40%, respectively. VCE depicted mucosal pathologies missed by MRE in three patients. MRE revealed 83 extraenteric findings in 55 patients and CGR was able to show the dynamic evolution of the gastrointestinal function. MRE is a simple, safe, non-invasive and effective method for evaluating small bowel Crohn's disease. VCE allows visualization and readily characterizes subtle mucosal lesions missed by MRE, whereas MRE yields additional mural, perienteric and extraenteric information. However, oral barium CGR utilizes radiation, which is not suitable for repeated use in children.
Experimental and therapeutic medicine 07/2013; 6(1):115-120. DOI:10.3892/etm.2013.1113 · 1.27 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: Magnetic resonance (MR) imaging is rapidly increasing clinical acceptance to evaluate the small bowel and can be the initial imaging method to investigate small bowel diseases. MR examinations may provide the first opportunity to detect and characterize tumours of the small bowel. Intra- and extraluminal MR findings, combined with contrast enhancement and functional information, help to make an accurate diagnosis and consequently characterize small bowel neoplasms. MR enteroclysis should be recommended for the initial investigation in patients suspected of having small bowel tumours. In this article, the MR findings of primary small bowel neoplasms are described and the MR findings for the differential diagnosis are discussed.
Cancer Imaging 03/2013; 13(1):92-9. DOI:10.1102/1470-7330.2013.0012 · 2.07 Impact Factor
Onofrio A Catalano, Michael S Gee, Emanuele Nicolai, Francesco Selvaggi, Gianluca Pellino, Alberto Cuocolo, Angelo Luongo, Marco Catalano, Bruce R Rosen, Debra Gervais, Mark G Vangel, Andrea Soricelli, Marco Salvatore
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