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Magnetic resonance enterography

Miyoung Choi, Sungwon Lim, Myung-Gyu Choi, Ki-Nam Shim, Seon Heui Lee
Background/Aims: As a result of the rapid development of medical diagnostic tools, physicians require concrete evidence to evaluate the effectiveness of the tools. We aimed to investigate the effectiveness and additional diagnostic benefits of capsule endoscopy (CE) in patients with small bowel Crohn's disease (CD). Methods: We performed a systematic search of databases, including MEDLINE, EMBASE, and the Cochrane Library, as well as eight domestic databases. Two reviewers independently screened all references...
October 13, 2016: Gut and Liver
Piotr Eder, Liliana Łykowska-Szuber, Katarzyna Katulska, Kamila Stawczyk-Eder, Iwona Krela-Kaźmierczak, Katarzyna Klimczak, Aleksandra Szymczak, Marek Stajgis, Krzysztof Linke
INTRODUCTION: Objective assessment of Crohn's disease (CD) activity in patients treated with anti-tumour necrosis factor (anti-TNF) antibodies is crucial for the prediction of its long-term results. Mucosal healing estimated endoscopically has a strong predictive value; however, only combined assessment together with transmural healing in magnetic resonance enterography (MRE) gives full information about the whole spectrum of inflammatory lesions in CD. AIM: To assess the usefulness of intestinal healing phenomenon in CD, defined as improvement both in endoscopy and MRE, after anti-TNF induction therapy, in predicting long-term results of 1-year treatment...
2016: Przegla̜d Gastroenterologiczny
Sanne N van Munster, Mark F J Stolk, Karel C Kuypers, Rene Wiezer, Thomas L Bollen
No abstract text is available yet for this article.
August 2016: Quantitative Imaging in Medicine and Surgery
Alexandre Nuzzo, Magaly Zappa, Dominique Cazals-Hatem, Yoram Bouhnik
BACKGROUND: Mesenteric panniculitis (MP) is mostly an associated sign of an intra-abdominal or systemic inflammatory primary disease. Nevertheless, etiological and differential diagnosis of idiopathic MP can be challenging when an associate primary cause is not in the foreground. METHODS: We report here the case of an isolated small bowel Crohn's disease, long time considered as idiopathic MP. RESULTS: This patient presented to our department with a 10-year history of acute abdominal symptoms evolving with flare-up and remission...
September 2016: Medicine (Baltimore)
Antoine Brouquet, Anne-Sophie Rangheard, Jonathan Ifergan, Thierry Lazure, Franck Carbonnel, Christophe Penna, Stéphane Benoist
AIM: The study aimed to evaluate the accuracy of imaging for the measurement of the length of the ileocolic segment affected by Crohn's disease. METHOD: Fifty-four consecutive patients who underwent resection between 2011 and 2014 for ileocolic Crohn's disease were prospectively studied. All had preoperative magnetic resonance (MR) or computed tomographic (CT) enterography. Two independent radiologists measured the length of the diseased intestinal segment. The measurements were compared with the length of disease assessed on pathology of the non-fixed surgical specimen...
September 8, 2016: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
Jordi Rimola, Almudena Alvarez-Cofiño, Tamara Pérez-Jeldres, Carmen Ayuso, Ignacio Alfaro, Sonia Rodríguez, Elena Ricart, Ingrid Ordás, Julián Panés
BACKGROUND: Magnetic resonance enterography (MRE) is an accurate examination for assessing activity in Crohn's disease (CD). Various MRE indices have been developed for that purpose, but have not been directly compared. The aim of the study was to compare the diagnostic accuracy of three MRE indices for detecting and grading disease activity in CD, using endoscopy as gold standard. METHODS: MRE and ileocolonoscopies performed within 1 month in 43 patients with CD were analyzed...
September 6, 2016: Journal of Gastroenterology
Uri Kopylov, Eyal Klang, Doron Yablecovitch, Adi Lahat, Benjamin Avidan, Sandra Neuman, Nina Levhar, Tomer Greener, Noa Rozendorn, Arkadi Beytelman, Henit Yanai, Iris Dotan, Yehuda Chowers, Batya Weiss, Shomron Ben-Horin, Marianne M Amitai, Rami Eliakim
BACKGROUND: Video capsule endoscopy (VCE) and magnetic resonance enterography (MRE) are the prime modalities for the evaluation of small bowel (SB) Crohn's disease (CD). Mucosal inflammation on VCE is quantified using the Lewis score (LS). Diffusion-weighted (DW) magnetic resonance imaging (MRI) allows for accurate assessment of SB inflammation without administration of intravenous contrast material. The Magnetic Resonance Index of Activity (MaRiA) and the Clermont index are quantitative activity indices validated for contrast-enhanced MRE and DW-MRE, respectively...
September 2016: Therapeutic Advances in Gastroenterology
Shadi Rajabi, Isabelle Dupuis, Amine Benmassaoud, Alexandre Prucha, Talat Bessissow, Caroline Reinhold, Lawrence A Stein, Benoit Gallix
No abstract text is available yet for this article.
August 28, 2016: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
Gabriele Masselli, Ilaria Mastroiacovo, Emidio De Marco, Giulia Francione, Emanuele Casciani, Elisabetta Polettini, Gianfranco Gualdi
Crohn's disease affects more than 500000 individuals in the United States, and about 25% of cases are diagnosed during the pediatric period. Imaging of the bowel has undergone dramatic changes in the past two decades. The endoscopy with biopsy is generally considered the diagnostic reference standard, this combination can evaluates only the mucosa, not inflammation or fibrosis in the mucosa. Actually, the only modalities that can visualize submucosal tissues throughout the small bowel are the computed tomography (CT) enterography (CTE) with the magnetic resonance enterography (MRE)...
July 28, 2016: World Journal of Radiology
Makoto Naganuma, Shigeo Okuda, Tadakazu Hisamatsu, Katsuyoshi Matsuoka, Kiyoto Mori, Naoki Hosoe, Yoshihiro Nakazato, Haruhiko Ogata, Takanori Kanai
BACKGROUND: MR enterography (MRE) is useful for evaluating transmural lesions and extra-intestinal complications of Crohn's disease (CD). The aim of this study was to prospectively evaluate whether MRE could detect severe strictures and inflammatory lesions in patients who lost the responsiveness to anti-TNF treatment and whether MRE could predict prognosis of CD patients with clinical remission. PATIENTS AND METHODS: MRE were conducted in 50 patients who were treated with infliximab or adalimumab...
August 23, 2016: Abdominal Radiology
Parakkal Deepak, Joel G Fletcher, Jeff L Fidler, David H Bruining
Early recognition of Crohn's disease with initiation of disease-modifying therapy has emerged as a prominent inflammatory bowel disease management strategy. Clinical practice and trials have often focused on patient symptoms, and more recently, serologic tests, stool inflammatory markers, and/or endoscopic inflammatory features for study entry criteria, treatment targets, disease activity monitoring, and to assess therapeutic response. Unfortunately, patient symptoms do not correlate well with biological disease activity, and endoscopy potentially misses or underestimates disease extent and severity in small bowel Crohn's disease...
September 2016: Inflammatory Bowel Diseases
Eric C Ehman, Andrew S Phelps, Michael A Ohliger, Sue J Rhee, John D MacKenzie, Jesse L Courtier
PURPOSE: To evaluate the fused, colorized diffusion weighted imaging (DWI) and anatomic T2 images compared to routine contrast-enhanced T1 images at pediatric magnetic resonance enterography (MRE). METHODS: Fused, colorized DWI/T2 images were created from patients with magnetic resonance enterography (MRE) and colonoscopy/biopsy. Radiologists noted inflammation in five bowel segments (terminal ileum-rectosigmoid colon) on postcontrast images and DWI/T2 images. Test characteristics and agreement were calculated...
July 21, 2016: Clinical Imaging
Jessica Wong, Helen Moore, Mark Roger, Chris McKee
INTRODUCTION: Several different neutral oral contrast agents have been trialled in magnetic resonance and CT enterography (CTE). In the Auckland region, Mannitol 2.5% and VoLumen are both used in CTE. This study compares the performance of these two neutral oral contrast agents in CTE. METHODS: Computed tomography enterography data were collected from 25 consecutive studies that used either Mannitol or VoLumen in 2014. All images were reviewed by three radiologists blinded to the type of oral contrast...
October 2016: Journal of Medical Imaging and Radiation Oncology
Mengxia Li, Anke Dick, Nicole Hassold, Thomas Pabst, Thorsten Bley, Herbert Köstler, Henning Neubauer
BACKGROUND: The "Controlled Aliasing In Parallel Imaging Results In Higher Acceleration" (CAPIRINHA) technique greatly accelerates T1w 3D fast low angle shot (FLASH) scans while maintaining high image quality. We studied image quality and conspicuity of inflammatory lesions on CAIPIRINHA-accelerated imaging for pediatric small-bowel magnetic resonance imaging (MRI). METHODS: Forty-four consecutive patients (mean 14±3 years, 18 girls) underwent small-bowel MRI (MR enterography, MRE) at 1...
July 23, 2016: World Journal of Pediatrics: WJP
Frank I Scott, Gary R Lichtenstein
Mild Crohn's disease (CD) is classified as those patients who are ambulatory, with <10 % weight loss, are eating and drinking without abdominal mass, tenderness, obstructive symptoms, or fever, and endoscopically they have non-progressive mild findings. Initial evaluation of mild CD should focus on assessment for high-risk features requiring more aggressive therapy. In contrast to moderate-to-severe disease, where therapy is focused on mucosal healing, the management of mild CD is focused on symptom management, while exposing the individual to minimal therapeutic risks...
September 2016: Current Gastroenterology Reports
Srivathsan Ravindran, Sarah Helen Hancox, Neil Barlow, Arthur Dunk, David Howlett
Aims. To identify the prevalence of colonic and extraenteric incidental findings in magnetic resonance enterography (MRE) and their clinical significance. Methods. We retrospectively analysed 470 MRE studies carried out between March 2012 and 2014. Incidental findings were defined as those not expected from or made apparent on the referral. MRE reports were reviewed for colonic and extraenteric findings, subcategorised into "clinically significant" and "insignificant." Follow-up was identified from the electronic patient record...
2016: Canadian Journal of Gastroenterology & Hepatology
Mikang Kim, Hyun Joo Jang
Endoscopy has a crucial role in the diagnosis, management, and surveillance of inflammatory bowel disease (IBD). It contributes in supporting the diagnosis of IBD with the clinical history, physical examination, laboratory findings, and targeted biopsies. Furthermore, endoscopy has a significant role in assessing disease activity and distribution in treatment efficacy evaluation, post-surgical recurrence risk, and cancer surveillance in patients with long-lasting illness. Endoscopy also provides therapeutic potential for the treatment of IBD, especially with stricture dilatation and treatment of bleeding...
July 2016: Intestinal Research
Roopa Ram, David Sarver, Tarun Pandey, Carey L Guidry, Kedar R Jambhekar
Crohn's disease (CD) is a chronic inflammatory bowel disease that often requires frequent imaging of patients in order to detect active disease and other complications related to disease activity. While endoscopy is the gold standard for diagnosis, it may be contraindicated in some patients and has a limited role in detecting deep submucosal/mesenteric diseases and intra abdominal complications. In recent years, magnetic resonance enterography (MRE) has evolved as a noninvasive, radiation free imaging modality in the evaluation of patients with CD...
April 2016: Indian Journal of Radiology & Imaging
Gisele Aaltonen, Ilona Keränen, Monika Carpelan-Holmström, Ritja Savolainen, Riikka Lindén, Anna Lepistö
AIMS: The present study compares preoperative magnetic resonance enterography (MRE) accuracy in diagnosing stenoses, abscesses and fistulas to intraoperative findings in Crohn's disease patients, and determines whether discordance between these methods alter surgical plans. METHODS: Our study included 55 consecutive patients scheduled for elective surgery due to Crohn's disease in a single institution between January 2011 and May 2015, whose surgical findings were also compared to preoperative MREs...
July 7, 2016: Digestive Surgery
E F Sheybani, N Sheikh, G B Chavhan, M-L C Greer
AIM: To determine the occurrence of extra-intestinal findings on magnetic resonance enterography (MRE) in a large cohort of children with known or suspected inflammatory bowel disease, characterise those findings, determine the technique and frequency of follow-up imaging, and associated costs. MATERIALS AND METHODS: Imaging reports from 757 MRE examinations in 671 children with known or suspected IBD from 2011 through 2012 were analysed retrospectively. Reported extra-intestinal findings were categorised by two radiologists in consensus as normal, normal variants or commonly seen findings without clinical significance, or abnormal...
September 2016: Clinical Radiology
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