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MR enterography

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https://www.readbyqxmd.com/read/28813197/split-bolus-injection-producing-simultaneous-late-arterial-and-portal-venous-phases-in-ct-enterography-preliminary-results
#1
Johannes Boos, Jieming Fang, Christina M Chingkoe, Michele Perillo, Martin Smith, Vassilios Raptopoulos, Olga R Brook
OBJECTIVE: The purpose of this article is to evaluate the image quality and added value of split-bolus contrast agent injection combining late arterial and portal venous phases compared with single-bolus contrast agent injection late arterial phase CT enterography. MATERIALS AND METHODS: Consecutive patients who underwent CT enterography before and after implementation of a single-bolus CT enterography protocol were included. Attenuation and contrast-to-noise ratio (CNR) were assessed by ROI measurements of the bowel wall and arterial and venous structures...
August 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28740350/cryptogenic-multifocal-ulcerous-stenosing-enteritis-radiologic-features-and-clinical-behavior
#2
Jiyoung Hwang, Jin Sil Kim, Ah Young Kim, Joon Seok Lim, Se Hyung Kim, Min Ju Kim, Mi Sung Kim, Kyoung Doo Song, Ji Young Woo
AIM: To investigate the characteristic radiologic findings of cryptogenic multifocal ulcerous stenosing enteritis (CMUSE) which can be differentiated from other similar bowel disease and to assess their clinical behavior. METHODS: Twenty pathologically and clinically confirmed CMUSE patients (males:females = 8:12; mean age: 40.4 years) between March 2002 and August 2015 from seven academic centers in South Korea were retrospectively reviewed. We evaluated small bowel series (SBS; n = 25), computed tomography (CT) enterography (n = 21), magnetic resonance (MR) enterography (n = 2), and abdominopelvic CT (n = 18) images, focusing on enteric and perienteric manifestations...
July 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28668417/mr-enterography-in-paediatric-patients-with-obscure-gastrointestinal-bleeding
#3
Emanuele Casciani, Giovanni Di Nardo, Simone Chin, Gabriele Masselli, Elisabetta Polettini, Salvatore Oliva, Denis A Cozzi, Salvatore Cucchiara, Gianfranco Gualdi
OBJECTIVES: To evaluate the performance of Magnetic Resonance enterography (MRE) in the diagnostic work-up of children presenting with obscure gastrointestinal bleeding (OGIB). MATERIALS AND METHODS: From January 2014 to January 2016, a single-centre prospective study was performed on all children between 0 and 16 years of age referred to the radiology department for OGIB. Each child underwent MRE examination after negative oesophagogastroduodenoscopy and ileocolonoscopy...
August 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28662984/mr-enterography-in-crohn-s-disease-complicated-with-enteroenteric-fistula
#4
Ayşe Erden, Sena Ünal, Habip Eser Akkaya, Mehmet Onay, Murat Törüner, Zeynep Bıyıklı Gençtürk, Aysun Çalışkan Kartal
OBJECTIVE: In this retrospective study, we aimed to evaluate MR enterography (MRE) findings, MR index of activity (MaRIA) and laboratory markers in Crohn patients with enteroenteric fistula. METHODS: Institution's electronic medical records (laboratory, pathology, ileocolonoscopy results and discharge summary) were reviewed and MR images retrieved from the PACS were reanalyzed in Crohn patients assessed at Gastroenterology Clinic of our university between July 2011 and July 2016...
June 20, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28659679/distal-duodenal-obstruction-a-surgical-enigma
#5
Seema Khanna, Piyush Gupta, Rahul Khanna, Disha Dalela
The postbulbar segment also known as the distal duodenum is a separate clinical entity in terms of the intrinsic pathologies of this region and its varied anatomical relations. The common bile duct and the pancreatic duct open through the major papilla, which marks the beginning of this segment. Distal duodenal obstruction can be defined as a clinicoradiological entity that is characterized by features of gastric outlet obstruction with recurrent bilious vomiting and a radiological evidence of postbulbar obstruction...
June 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28595876/a-diagnostic-accuracy-meta-analysis-of-ct-and-mri-for-the-evaluation-of-small-bowel-crohn-disease
#6
Wenhong Liu, Jincai Liu, Wenlian Xiao, Guanghua Luo
RATIONALE AND OBJECTIVES: This study aimed to evaluate the diagnostic accuracy of magnetic resonance imaging (MRI) and computed tomography (CT) in assessing small bowel (SB) Crohn disease (CD). MATERIALS AND METHODS: We systematically searched PubMed, Elsevier, ScienceDirect, Karger, Web of Science, Wiley Online Library, and Springer for studies in which CT or MRI were evaluated to assess SB CD. Bivariate random effect meta-analytic methods were used to estimate pooled sensitivity, specificity, and receiver operating characteristic curves...
June 5, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28470387/comparison-of-ct-enterography-and-mr-enterography-imaging-features-of-active-crohn-disease-in-children-and-adolescents
#7
Heather I Gale, Steven M Sharatz, Mayureewan Taphey, William F Bradley, Katherine Nimkin, Michael S Gee
BACKGROUND: Assessment for active Crohn disease by CT enterography and MR enterography relies on identifying mural and perienteric imaging features. OBJECTIVE: To evaluate the performance of established imaging features of active Crohn disease in children and adolescents on CT and MR enterography compared with histological reference. MATERIALS AND METHODS: We included patients ages 18 years and younger who underwent either CT or MR enterography from 2007 to 2014 and had endoscopic biopsy within 28 days of imaging...
May 3, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28434027/can-ultrasound-be-used-as-the-primary-imaging-in-children-with-suspected-crohn-disease
#8
Timothy L Tsai, Megan B Marine, Matthew R Wanner, Matthew L Cooper, Steven J Steiner, Fangqian Ouyang, S Gregory Jennings, Boaz Karmazyn
BACKGROUND: There is growing literature on the use of ultrasound (US) for evaluation of Crohn disease in adults, but few studies have been conducted on children. Several studies demonstrated high accuracy of US in the diagnosis of Crohn disease. Using US as the primary screening imaging modality for Crohn disease can reduce health care costs, the need for sedation and ionizing radiation exposure. OBJECTIVE: The aim of our study is to determine if US can be used for screening evaluation of pediatric Crohn disease...
April 22, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28417181/colonic-inflammation-in-pediatric-inflammatory-bowel-disease-detection-with-magnetic-resonance-enterography
#9
Alessandro Campari, Marcello Napolitano, Giovanna Zuin, Luciano Maestri, Giovanni Di Leo, Francesco Sardanelli
BACKGROUND: Colonic involvement in pediatric inflammatory bowel disease is common. Magnetic resonance (MR) enterography is considered the best imaging modality for pediatric inflammatory bowel disease evaluation. It is unclear whether the lack of a dedicated large bowel preparation prevents a reliable colonic assessment. OBJECTIVE: To determine the diagnostic performance of standard MR enterography in detecting and grading colonic inflammatory activity. MATERIALS AND METHODS: We retrospectively evaluated children who underwent both MR enterography and ileocolonoscopy with biopsies <4 weeks apart...
June 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28401775/semi-automatic-bowel-wall-thickness-measurements-on-mr-enterography-in-patients-with-crohn-s-disease
#10
Robiel E Naziroglu, Carl A J Puylaert, Jeroen A W Tielbeek, Jesica Makanyanga, Alex Menys, Cyriel Y Ponsioen, Haralambos Hatzakis, Stuart A Taylor, Jaap Stoker, Lucas J van Vliet, Frans M Vos
OBJECTIVE: To evaluate a semi-automatic method for delineation of the bowel wall and measurement of the wall thickness in patients with Crohn's disease. METHODS: 53 patients with suspected or proven Crohn's disease were selected. Two radiologists independently supervised the delineation of regions with active Crohn's disease on MRI, yielding manual annotations (Ano1, Ano2). Three observers manually measured the maximal bowel wall thickness of each annotated segment...
June 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28393302/shortened-oral-contrast-preparation-for-improved-small-bowel-distension-at-mr-enterography
#11
M I J Bekendam, C A J Puylaert, S K S S Phoa, C Y Nio, J Stoker
PURPOSE: Adequate small bowel distension in MR enterography is important for the evaluation of disease activity in Crohn's disease patients. While distension of the distal small bowel can be achieved using standard oral contrast preparation, proximal small bowel distension remains a common impediment. The aim of this study was to compare small bowel distension between a 60-min oral contrast preparation and a 45-min oral contrast preparation. METHODS: Fifty retrospectively included patients with a 60-min oral preparation protocol and 50 prospectively included patients with a 45-min three-portion oral preparation protocol were included in the study...
April 9, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28386628/paediatric-magnetic-resonance-enteroclysis-under-general-anaesthesia-initial-experience
#12
Sophie Sadigh, Mark Chopra, Michael R Sury, Neil Shah, Øystein E Olsen, Tom A Watson
MR enterography is the accepted imaging reference standard for small bowel assessment in inflammatory bowel disease. There is an increasing cohort of children with inflammatory bowel disease presenting at an early age (<5 years) with severe disease. Younger children present a technical challenge for enterography because of the need for sedation/general anaesthesia to allow image optimisation and the need for oral contrast to allow adequate luminal assessment. Through our experiences, MR enteroclysis under general anaesthesia has proven to be a successful imaging technique for the work-up of these patients...
April 6, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28379745/endoscopic-skipping-of-the-terminal-ileum-in-pediatric-crohn-disease
#13
Ishrat Mansuri, Joel G Fletcher, David H Bruining, Amy B Kolbe, Jeff L Fidler, Sunil Samuel, Jeanne Tung
OBJECTIVE: Pediatric small-bowel (SB) Crohn disease (CD) may be missed if the terminal ileum (TI) appears normal at endoscopy and SB imaging is not performed. We sought to estimate the prevalence and clinical characteristics of pediatric patients with CD and endoscopic skipping of the TI-that is, pediatric patients with active SB or upper gut inflammation and an endoscopically normal TI. MATERIALS AND METHODS: This retrospective study included pediatric patients with CD who underwent both CT enterography (CTE) or MR enterography (MRE) and ileocolonoscopy within a 30-day period between July 2004 and April 2014...
June 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28302273/there-is-good-agreement-between-mr-enterography-and-bowel-ultrasound-with-regards-to-disease-location-and-activity-in-paediatric-inflammatory-bowel-disease
#14
COMPARATIVE STUDY
J L Barber, J Maclachlan, K Planche, M Furman, D Crespi, N Bab, I Beal
AIM: To investigate concordance of bowel ultrasound and magnetic resonance enterography (MRE) in identifying active disease in children with inflammatory bowel disease. MATERIALS AND METHODS: The imaging of children with inflammatory bowel disease who had undergone bowel ultrasound and MRE within 30 days were retrospectively reviewed, from January 2009 to November 2015. Ultrasound was without oral contrast medium; MRI was conducted with patients unsedated with oral contrast medium and gadolinium...
July 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28298964/magnetic-resonance-enterography-in-crohn-s-disease-how-we-do-it-and-common-imaging-findings
#15
REVIEW
Annalisa Mantarro, Paola Scalise, Elisa Guidi, Emanuele Neri
Crohn's disease (CD) is a chronic inflammatory disease of the gastrointestinal tract, with unpredictable clinical course by phases of relapses alternating with other of quiescence. The etiology is multifactorial and is still not completely known; globally the westernization of lifestyle is causing an increasing incidence of CD, with peak age of 20-30 years. The diagnostic workup begins with the evaluation of the clinical history, physical examination and laboratory tests. However, the clinical assessment is subjected interobserver variability and, occasionally, the symptoms of acute and chronic inflammation may be indistinguishable...
February 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28283726/magnetic-resonance-enterography-has-good-inter-rater-agreement-and-diagnostic-accuracy-for-detecting-inflammation-in-pediatric-crohn-disease
#16
Peter C Church, Mary-Louise C Greer, Ruth Cytter-Kuint, Andrea S Doria, Anne M Griffiths, Dan Turner, Thomas D Walters, Brian M Feldman
BACKGROUND: Magnetic resonance enterography (MRE) is increasingly relied upon for noninvasive assessment of intestinal inflammation in Crohn disease. However very few studies have examined the diagnostic accuracy of individual MRE signs in children. OBJECTIVE: We have created an MR-based multi-item measure of intestinal inflammation in children with Crohn disease - the Pediatric Inflammatory Crohn's MRE Index (PICMI). To inform item selection for this instrument, we explored the inter-rater agreement and diagnostic accuracy of individual MRE signs of inflammation in pediatric Crohn disease and compared our findings with the reference standards of the weighted Pediatric Crohn's Disease Activity Index (wPCDAI) and C-reactive protein (CRP)...
May 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28252210/clinical-endoscopic-and-radiographic-outcomes-with-ustekinumab-in-medically-refractory-crohn-s-disease-real-world-experience-from-a-multicentre-cohort
#17
MULTICENTER STUDY
C Ma, R N Fedorak, G G Kaplan, L A Dieleman, S M Devlin, N Stern, K I Kroeker, C H Seow, Y Leung, K L Novak, B P Halloran, V W Huang, K Wong, P K Blustein, S Ghosh, R Panaccione
BACKGROUND: Ustekinumab is a monoclonal antibody targeting interleukins-12 and -23, with efficacy in Crohn's disease (CD) demonstrated in clinical trials. AIM: To assess the real-world clinical, endoscopic and radiographic response and remission outcomes achieved with ustekinumab in medically-refractory CD. METHODS: A retrospective multicentre cohort study was performed on CD patients receiving ustekinumab between 2011 and 2016. The primary outcome was achievement of clinical and objective steroid-free response and remission at 3, 6 and 12 months...
May 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28225669/mr-enterography-assessment-of-bowel-inflammation-severity-in-crohn-disease-using-the-mr-index-of-activity-score-modifying-roles-of-dwi-and-effects-of-contrast-phases
#18
Jin Sil Kim, Hye Young Jang, Seong Ho Park, Kyung-Jo Kim, Kyunghwa Han, Suk-Kyun Yang, Byong Duk Ye, Sang Hyoung Park, Jong Seok Lee, Hyun Jin Kim
OBJECTIVE: The purpose of this article is to appraise the use of the MR index of activity (MaRIA) score in evaluating Crohn disease (CD) on present-day MR enterography images, with an emphasis on determining the modifying roles of DWI and the effects of different contrast enhancement phases. SUBJECTS AND METHODS: Fifty patients prospectively underwent MR enterography, including DWI and enteric and portal phase scans, and ileocolonoscopy with segmental CD endoscopic index of severity (CDEIS) scoring within a week...
May 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28210706/single-balloon-enteroscopy-efficacy-and-degree-of-concordance-with-noninvasive-evaluation-of-small-bowel
#19
Margarida Marques, João Santos-Antunes, Rosa Coelho, Hélder Cardoso, Filipe Vilas Boas, Armando Ribeiro, Guilherme Macedo
Background and study aims Clinical impact of single-balloon enteroscopy (SBE) is fairly known, as well as its diagnostic yield comparing with other small bowel gastrointestinal investigations. This study represents a contribution to better understand it and is designed to evaluate SBE efficacy and degree of concordance with previous evaluation of small bowel. Patients and methods This is a single-center retrospective study of patients that underwent SBE with suspected small bowel disease based on non-invasive imaging...
February 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28193167/helicobacter-pylori-prevalence-and-clinical-significance-in-patients-with-quiescent-crohn-s-disease
#20
Adi Lahat, Uri Kopylov, Sandra Neuman, Nina Levhar, Doron Yablecovitch, Benjamin Avidan, Batia Weiss, Shomron Ben-Horin, Rami Eliakim
BACKGROUND: Helicobacter pylori (HP) infection is present in about 50% of the global population, and is associated with chronic gastritis, peptic disease and gastric malignancies. HP prevalence in Crohn's disease (CD) patients was shown to be low compared to the general population, and its influence on disease activity is yet to be determined. Our aims were to determine the prevalence of HP in a selected group of CD patients with quiescent disease, and to assess the influence of its eradication on disease activity and endoscopic and laboratory activity measures...
February 13, 2017: BMC Gastroenterology
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