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MR crohn's

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https://www.readbyqxmd.com/read/28298964/magnetic-resonance-enterography-in-crohn-s-disease-how-we-do-it-and-common-imaging-findings
#1
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/28289934/anoperineal-disease-in-hidradenitis-suppurativa-mr-imaging-distinction-from-perianal-crohn-s-disease
#2
Louise Monnier, Anthony Dohan, Nedjoua Amara, Anne-Marie Zagdanski, Moustapha Drame, Philippe Soyer, Christine Hoeffel
OBJECTIVE: To determine whether Hidradenitis suppurativa (HS)-related anoperineal disease can be distinguished from Crohn's disease (CD) using MRI. METHODS: Pelvic MRI of 23 HS and 46 CD patients with anoperineal disease between 2007 and 2014 were independently analysed by two radiologists. For diagnosis of HS, sensitivity, specificity and positive likelihood ratios (LRs) of inflammatory features and of their anatomical distribution were calculated and compared to those of CD...
March 13, 2017: European 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
#3
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)...
March 10, 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
#4
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...
March 2, 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
#5
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...
February 22, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28218881/mr-imaging-of-perianal-crohn-disease
#6
Shannon P Sheedy, David H Bruining, Eric J Dozois, William A Faubion, Joel G Fletcher
Pelvic magnetic resonance (MR) imaging is currently the standard for imaging perianal Crohn disease. Perianal fistulas are a leading cause of patient morbidity because closure often requires multimodality treatments over a prolonged period of time. This review summarizes clinically relevant anal sphincter anatomy, imaging methods, classification systems, and treatment objectives. In addition, the MR appearance of healing perianal fistulas and fistula complications is described. Difficult imaging tasks including the assessment of rectovaginal fistulas and ileoanal anastomoses are highlighted, along with illustrative cases...
March 2017: Radiology
https://www.readbyqxmd.com/read/28193167/helicobacter-pylori-prevalence-and-clinical-significance-in-patients-with-quiescent-crohn-s-disease
#7
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
https://www.readbyqxmd.com/read/28175024/p185-validity-of-contrast-enhanced-ultrasonography-and-dynamic-contrast-enhanced-mr-enterography-in-the-assessment-of-crohn-s-disease
#8
R Wilkens, R Hagemann-Madsen, D A Peters, A H Nielsen, C B Nørager, H Glerup, K Krogh
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28172580/p309-impact-of-rapid-access-mr-on-clinical-decision-making-and-patient-management-in-crohn-s-disease-in-a-tertiary-referral-center
#9
B D Lovasz, L Gonczi, Z Kurti, Z Vegh, P A Golovics, G Rudas, K B Gecse, P L Lakatos
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28096726/diffusion-weighted-mr-enterography-to-monitor-bowel-inflammation-after-medical-therapy-in-crohn-s-disease-a-prospective-longitudinal-study
#10
Jimi Huh, Kyung Jo Kim, Seong Ho Park, So Hyun Park, Suk-Kyun Yang, Byong Duk Ye, Sang Hyoung Park, Kyunghwa Han, Ah Young Kim
OBJECTIVE: To prospectively evaluate the performance of diffusion-weighted imaging (DWI) to monitor bowel inflammation after medical therapy for Crohn's disease (CD). MATERIALS AND METHODS: Before and following 1-2 years of medical therapy, between October 2012 and May 2015, 18 randomly selected adult CD patients (male:female, 13:5; mean age ± SD, 25.8 ± 7.9 years at the time of enrollment) prospectively underwent MR enterography (MRE) including DWI (b = 900 s/mm(2)) and ileocolonoscopy...
January 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28072831/a-probabilistic-method-for-estimation-of-bowel-wall-thickness-in-mr-colonography
#11
Thomas Hampshire, Alex Menys, Asif Jaffer, Gauraang Bhatnagar, Shonit Punwani, David Atkinson, Steve Halligan, David J Hawkes, Stuart A Taylor
MRI has recently been applied as a tool to quantitatively evaluate the response to therapy in patients with Crohn's disease, and is the preferred choice for repeated imaging. Bowel wall thickness on MRI is an important biomarker of underlying inflammatory activity, being abnormally increased in the acute phase and reducing in response to successful therapy; however, a poor level of interobserver agreement of measured thickness is reported and therefore a system for accurate, robust and reproducible measurements is desirable...
2017: PloS One
https://www.readbyqxmd.com/read/27943484/utility-of-mr-enterography-and-ultrasound-for-the-investigation-of-small-bowel-crohn-s-disease
#12
REVIEW
Gauraang Bhatnagar, Conrad Von Stempel, Steve Halligan, Stuart A Taylor
Cross sectional Imaging plays an increasingly important role the diagnosis and management of Crohn's disease. Particular emphasis is placed on MRI and Ultrasound as they do not impart ionising radiation. Both modalities have reported high sensitivity for disease detection, activity assessment and evaluation of extra-luminal complications, and have positive effects on clinical decision making. International Guidelines now recommend MRI and Ultrasound in the routine management of Crohn's disease patients. This article reviews the current evidence base supporting both modalities with an emphasis on the key clinical questions...
December 9, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27930407/bowel-damage-in-crohn-s-disease-direct-comparison-of-ultrasonography-based-and-magnetic-resonance-based-lemann-index
#13
Antonio Rispo, Nicola Imperatore, Anna Testa, Pierpaolo Mainenti, Giovanni Domenico De Palma, Gaetano Luglio, Simone Maurea, Olga Maria Nardone, Nicola Caporaso, Fabiana Castiglione
BACKGROUND: The Lémann index (LI), calculated by magnetic resonance (MR) or computed tomography enterography in association with endoscopy, was developed to assess bowel damage (BD) in Crohn's disease (CD). Our aim was to investigate the concordance between ultrasonography-based Lèmann index (US-LI) and magnetic resonance-based Lèmann index (MR-LI). METHODS: We prospectively evaluated all consecutive patients with CD referred to our IBD Unit. All patients had undergone endoscopy, US and MR within 1 month...
January 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/27885894/mr-enterography-of-inflammatory-bowel-disease-with-endoscopic-correlation
#14
Pankaj Kaushal, Alexander S Somwaru, Aline Charabaty, Angela D Levy
Crohn disease (CD) and ulcerative colitis (UC) are the two main forms of idiopathic inflammatory bowel disease (IBD). CD is a transmural chronic inflammatory disorder that can affect any part of the gastrointestinal tract in a discontinuous distribution. UC is a mucosal and submucosal chronic inflammatory disease that typically originates in the rectum and may extend proximally in a continuous manner. In treating patients with CD and UC, clinicians rely heavily on accurate diagnoses and disease staging. Magnetic resonance (MR) enterography used in conjunction with endoscopy and histopathologic analysis can help accurately diagnose and manage disease in the majority of patients...
January 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27885389/mri-features-of-perianal-fistulas-is-there-a-difference-between-crohn-s-and-non-crohn-s-patients
#15
Irai S Oliveira, Aoife Kilcoyne, Melissa C Price, Mukesh Harisinghani
PURPOSE: Though perianal fistulas are commonly seen in patients with Crohn's disease, they can also be seen in patients without inflammatory bowel disease. The purpose of this study was to evaluate MR imaging differences of perianal fistulas in patients with and without Crohn's disease. METHODS: Our retrospective search from January 2012 to December 2015 of the Radiology database for perianal fistula yielded 207 patients. Only patients with dedicated MR fistula protocol studies were included, whereas patients with previous anal surgery or anastomosis, anorectal tumors, and equivocal findings that could not be definitely assessed as a fistula were excluded...
November 24, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27874943/mr-enterography-with-diffusion-weighted-imaging-adc-values-in-normal-and-pathological-bowel-loops-a-possible-threshold-adc-value-to-differentiate-active-from-inactive-crohn-s-disease
#16
V Ninivaggi, M Missere, G Restaino, E Gangemi, M Di Matteo, A Pierro, G Sallustio, L Bonomo
OBJECTIVE: The aim of our study was to compare the apparent diffusion coefficient (ADC) values of pathological bowel loops wall (pADC) with the ADC values of normal appearing ones (naADC) and to determine a discriminating threshold. PATIENTS AND METHODS: 60 patients were studied at our Institution through a MR-enterography that included free-breathing axial Diffusion Weighted Imaging (DWI) with two b (0 and 800 s/mm2) after histological diagnosis of active Crohn's disease (CD)...
November 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27848026/magnetic-resonance-evaluation-for-small-bowel-strictures-in-crohn-s-disease-comparison-with-balloon-enteroscopy
#17
Kento Takenaka, Kazuo Ohtsuka, Yoshio Kitazume, Katsuyoshi Matsuoka, Toshimitsu Fujii, Masakazu Nagahori, Maiko Kimura, Tomoyuki Fujioka, Akihiro Araki, Mamoru Watanabe
BACKGROUND: Magnetic resonance (MR) imaging is the recommended technique for detection of small bowel lesions in Crohn's disease. We aimed to evaluate the impact of stricture findings obtained by MR imaging on patient outcomes using balloon-assisted enteroscopy (BAE) as a reference. METHODS: Two hundred Crohn's disease patients undergoing both MR enterocolonography and BAE were prospectively followed up for at least 1 year. The presence of strictures detected by MR enterocolonography was compared with endoscopic findings...
November 15, 2016: Journal of Gastroenterology
https://www.readbyqxmd.com/read/27709277/diffusion-weighted-mr-enterography-for-evaluating-crohn-s-disease-effect-of-anti-peristaltic-agent-on-the-diagnosis-of-bowel-inflammation
#18
So Hyun Park, Jimi Huh, Seong Ho Park, Seung Soo Lee, Ah Young Kim, Suk-Kyun Yang
OBJECTIVES: To prospectively investigate how Buscopan affects the diagnosis of bowel inflammation by diffusion-weighted imaging MR enterography (DWI-MRE) in Crohn's disease (CD). METHODS: Thirty CD patients without previous bowel surgery underwent DWI-MRE (b = 900 sec/mm(2)) before and after intravenous Buscopan. The 30 patients were randomly divided into two groups; using a crossover design, interpretations were made regarding the presence of restricted mural diffusion (i...
October 5, 2016: European Radiology
https://www.readbyqxmd.com/read/27687769/ultrasound-and-mri-predictors-of-surgical-bowel-resection-in-pediatric-crohn-disease
#19
Daniel G Rosenbaum, Maire A Conrad, David M Biko, Eduardo D Ruchelli, Judith R Kelsen, Sudha A Anupindi
BACKGROUND: Imaging predictors for surgery in children with Crohn disease are lacking. OBJECTIVE: To identify imaging features of the terminal ileum on short-interval bowel ultrasound (US) and MR enterography (MRE) in children with Crohn disease requiring surgical bowel resection and those managed by medical therapy alone. MATERIALS AND METHODS: This retrospective study evaluated patients 18 years and younger with Crohn disease undergoing short-interval bowel US and MRE (within 2 months of one another), as well as subsequent ileocecectomy or endoscopy within 3 months of imaging...
January 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/27607894/the-accuracy-of-preoperative-imaging-in-measuring-the-length-of-the-ileocolic-segment-affected-by-crohn-s-disease-a-prospective-cohort-study
#20
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
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