1
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Lacotte E, Boujonnier L, Martinez-Vinson C, Viala J, Ley D, Coopman S, Lerisson H, Dabadie A, Dumant-Forrest C, Pigneur B, Ruemmele F, Enaud R, Comte A, Rebeuh J, Bertrand V, Caron N, Breton A, Duclaux-Loras R, Vasies I, Dupont-Lucas C. Risk factors for surgery in stricturing small bowel Crohn's disease: A retrospective cohort study from the GETAID pédiatrique. J Pediatr Gastroenterol Nutr 2024; 78:1261-1272. [PMID: 38651614 DOI: 10.1002/jpn3.12224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 02/22/2024] [Accepted: 03/22/2024] [Indexed: 04/25/2024]
Abstract
OBJECTIVES Previous studies have shown rates of surgical resection of up to 41% in stricturing pediatric Crohn's disease (CD). In this retrospective multicenter study, our aims were to identify clinical risk factors and magnetic resonance enterography (MRE) features of small bowel strictures associated with surgery. METHODS Pediatric patients with symptomatic stricturing small bowel CD (defined as obstructive symptoms or proximal dilatation on MRE) confirmed by MRE between 2010 and 2020 were recruited from 12 French tertiary hospitals. Patient characteristics were compared by surgical outcome multivariable Cox regression. RESULTS Fifty-six patients (61% boys) aged 12.2 ± 2.7 years at diagnosis of CD were included. Median duration of CD before diagnosis of stricture was 11.7 months (interquartile range [IQR]: 25-75: 1.2-29.9). Nineteen (34%) patients had stricturing phenotype (B2) at baseline. Treatments received before stricture diagnosis included MODULEN-IBD (n = 31), corticosteroids (n = 35), antibiotics (n = 10), anti-TNF (n = 27), immunosuppressants (n = 28). Thirty-six patients (64%) required surgery, within 4.8 months (IQR: 25-75: 1.8-17.3) after stricture diagnosis. Parameters associated with surgical resection were antibiotic exposure before stricture diagnosis (adjusted odds ratio [aOR]: 15.62 [3.35-72.73], p = 0.0005), Crohn's disease obstructive symptoms score (CDOS) > 4 (aOR: 3.04 [1.15-8.03], p = 0.02) and dilation proximal to stricture >28 mm (aOR: 3.62 [1.17-11.20], p = 0.03). CONCLUSION In this study, antibiotic treatment before stricture diagnosis, intensity of obstructive symptoms, and diameter of dilation proximal to small bowel stricture on MRE were associated with risk for surgical resection.
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Affiliation(s)
- Edouard Lacotte
- Department of Pediatrics, Caen University Hospital, Caen, France
| | - Louis Boujonnier
- Department of Pediatric Radiology, Caen University Hospital, Caen, France
| | | | - Jérôme Viala
- Pediatric Gastroenterology, Robert Debré University Hospital, Paris, France
| | - Delphine Ley
- Pediatric Gastroenterology, Lille University Hospital, Lille, France
| | - Stéphanie Coopman
- Pediatric Gastroenterology, Lille University Hospital, Lille, France
| | - Héloïse Lerisson
- Department of Pediatric Radiology, Lille University Hospital, Lille, France
| | - Alain Dabadie
- Pediatric Gastroenterology, Rennes University Hospital, Rennes, France
| | | | - Bénédicte Pigneur
- Pediatric Gastroenterology, Necker University Hospital, Paris, France
| | - Frank Ruemmele
- Pediatric Gastroenterology, Necker University Hospital, Paris, France
| | - Raphael Enaud
- Pediatric Gastroenterology, Bordeaux University Hospital, Bordeaux, France
| | - Aurélie Comte
- Department of Pediatrics, Besançon University Hospital, Besançon, France
| | - Julie Rebeuh
- Department of Pediatrics, Strasbourg University Hospital, Strasbourg, France
| | | | - Nicolas Caron
- Department of Pediatrics, Clermont-Ferrand University Hospital, Clermont-Ferrand, France
| | - Anne Breton
- Department of Pediatric Gastroenterology, Toulouse University Hospital, Toulouse, France
| | | | - Ioana Vasies
- Department of Pediatric radiology, Rouen University Hospital, Rouen, France
| | - Claire Dupont-Lucas
- Department of Pediatrics, Caen University Hospital, Caen, France
- INSERM UMR 1073 ADEN, Institute for Biomedical Research, Rouen, France
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2
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Rimola J, Beek KJ, Ordás I, Gecse KB, Cuatrecasas M, Stoker J. Contemporary Imaging Assessment of Strictures and Fibrosis in Crohn Disease, With Focus on Quantitative Biomarkers: From the AJR Special Series on Imaging of Fibrosis. AJR Am J Roentgenol 2024; 222:e2329693. [PMID: 37530400 DOI: 10.2214/ajr.23.29693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Patients with Crohn disease commonly have bowel strictures develop, which exhibit varying degrees of inflammation and fibrosis. Differentiation of the distinct inflammatory and fibrotic components of strictures is key for the optimization of therapeutic management and for the development of antifibrotic drugs. Cross-sectional imaging techniques, including ultrasound, CT, and MRI, allow evaluation of the full thickness of the bowel wall as well as extramural complications and associated mesenteric abnormalities. Although promising data have been reported for a range of novel imaging biomarkers for detection of fibrosis and quantification of the degree of fibrosis, these biomarkers lack sufficient validation and standardization for clinical use. Additional methods, including PET with emerging radiotracers, artificial intelligence, and radiomics, are also under investigation for stricture characterization. In this review, we highlight the clinical relevance of identifying fibrosis in Crohn disease, review the histopathologic aspects of strictures in Crohn disease, summarize the morphologic imaging findings of strictures, and explore contemporary developments in the use of cross-sectional imaging techniques for detecting and characterizing intestinal strictures, with attention given to emerging quantitative biomarkers.
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Affiliation(s)
- Jordi Rimola
- Radiology Department, IBD Unit, Hospital Clínic de Barcelona, Villarroel 170, Escala 3, Planta 1, Barcelona 08036, Spain
- Institut d'Investigació Biomèdica August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Kim J Beek
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Ingrid Ordás
- Institut d'Investigació Biomèdica August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Gastroenterology Department, IBD Unit, Hospital Clínic de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Krisztina B Gecse
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Míriam Cuatrecasas
- Institut d'Investigació Biomèdica August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
- Pathology Department, IBD Unit, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Jaap Stoker
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
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3
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Elford AT, Ardalan Z, Simkin P, Christensen B. Comprehensive review and update of stricturing Crohn's disease. Indian J Gastroenterol 2024; 43:64-77. [PMID: 38277070 DOI: 10.1007/s12664-023-01508-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/17/2023] [Indexed: 01/27/2024]
Abstract
Up to 50% of patients with Crohn's disease develop a stricture within 10 years of diagnosis. Crohn's strictures can compose of inflammation, fibrosis or smooth muscle expansion and usually a combination of these. There have been numerous new developments in imaging modalities in determining the composition of Crohn's strictures. Magnetic resonance imaging remains the best upfront imaging modality to characterize Crohn's strictures. Gastrointestinal ultrasound (GIUS) has an increasing role in clinical practice, particularly for monitoring stricture response as a treat-to-target tool. Novel imaging techniques to differentiate between fibrosis and inflammatory strictures have been developed including contrast-enhanced GIUS, strain or shear wave elastography with GIUS and multiple new magnetic resonance imaging (MRI) protocols, including diffusion weighted, delayed contrast enhancement and magnetization transfer MR protocols. However, these techniques require further validation and standardization. Regarding therapeutics, anti-tumor necrosis agents with a treat-to-target strategy have the highest quality evidence in treating strictures and can lead to stricture regression in some cases. Endoscopic balloon dilatation remains a mainstay in the treatment algorithm of treating predominantly fibrostenotic Crohn's strictures, particularly those which are symptomatic, < 5 cm in length and not causing prestenotic dilatation. Endoscopic balloon dilatation has greater effectiveness in anastomotic strictures. Surgery remains an important treatment option in Crohn's strictures, with segmental resection and stricturoplasty having their own advantages and disadvantages. Kono-S anastomosis may be superior to conventional anastomosis for endoscopic recurrence; however, further high-quality studies are required to confirm this. Using risk stratification models such as the BACARDI risk model is important to guide management decisions between a medical and surgical approach. Early post-operative medical prophylaxis with an advanced therapy is an important consideration to prevent disease recurrence. This review expands on the above topics, highlights research gaps and provides a suggested investigation and management pathway in stricturing Crohn's disease.
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Affiliation(s)
- Alexander T Elford
- Gastroenterology Department, Royal Melbourne Hospital, Melbourne, Australia.
- Faculty of Medicine, Melbourne University, Melbourne, Australia.
- Edinburgh Inflammatory Bowel Diseases Unit, Western General Hospital, Edinburgh, UK.
| | - Zaid Ardalan
- Gastroenterology Department, Royal Melbourne Hospital, Melbourne, Australia
- Faculty of Medicine, Melbourne University, Melbourne, Australia
- Faculty of Medicine, Monash University, Melbourne, Australia
- Gastroenterology Department, Alfred Health, Melbourne, Australia
| | - Paul Simkin
- Radiology Department, Royal Melbourne Hospital, Melbourne, Australia
| | - Britt Christensen
- Gastroenterology Department, Royal Melbourne Hospital, Melbourne, Australia
- Faculty of Medicine, Melbourne University, Melbourne, Australia
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4
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Bartlett DJ, Takahashi H, Bach CR, Lunn B, Thorpe MP, Broski SM, Packard AT, Fletcher JG, Navin PJ. Potential applications of PET/MRI in non-oncologic conditions within the abdomen and pelvis. Abdom Radiol (NY) 2023; 48:3624-3633. [PMID: 37145312 DOI: 10.1007/s00261-023-03922-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/03/2023] [Accepted: 04/12/2023] [Indexed: 05/06/2023]
Abstract
PET/MRI is a relatively new imaging modality with several advantages over PET/CT that promise to improve imaging of the abdomen and pelvis for specific diagnostic tasks by combining the superior soft tissue characterization of MRI with the functional information acquired from PET. PET/MRI has an established role in staging and response assessment of multiple abdominopelvic malignancies, but the modality is not yet established for non-oncologic conditions of the abdomen and pelvis. In this review, potential applications of PET/MRI for non-oncologic conditions of abdomen and pelvis are outlined, and the available literature is reviewed to highlight promising areas for further research and translation into clinical practice.
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Affiliation(s)
| | | | - Corrie R Bach
- Department of Radiology, Mayo Clinic, Rochester, USA
| | - Brendan Lunn
- Department of Radiology, Mayo Clinic, Rochester, USA
| | | | | | - Ann T Packard
- Department of Radiology, Mayo Clinic, Rochester, USA
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5
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Allocca M, Dal Buono A, D'Alessio S, Spaggiari P, Garlatti V, Spinelli A, Faita F, Danese S. Relationships Between Intestinal Ultrasound Parameters and Histopathologic Findings in a Prospective Cohort of Patients With Crohn's Disease Undergoing Surgery. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2023. [PMID: 36744584 DOI: 10.1002/jum.16191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 12/24/2022] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVES Recognition of intestinal lesions with substantial fibrosis is strategic for optimal management of patients with Crohn's disease (CD). We aimed to assess the relationships between intestinal ultrasound parameters and histopathologic findings in a prospective cohort of patients with CD undergoing surgery. METHODS Seventeen consecutive adult CD patients with involvement of the terminal ileum or the sigmoid colon who underwent bowel resective surgeries were enrolled and performed intestinal ultrasound (IUS) within 30 days prior to surgery. Uni- and multivariable analyses were used to assess the relationships between IUS parameters and histopathological elements of lesions. RESULTS Sensitivity, specificity, accuracy, PPV and NPV (95% CI) of IUS in detecting stricturing and penetrating complications (surgical specimen as reference standard) were 93% (68-100), 86% (42-100), 91% (71-99), 93% (68-100) and 86% (42-100), and 78% (40-97), 92% (64-100), 86% (65-97), 88% (47-100) and 86% (57-98), respectively. Only the presence of hyperechogenic spiculates was statistically significantly associated with collagen content (b = 7.29, 95% CI = 1.88/12.69, P = .012), while only the presence of vascular signals at color Doppler (Limberg score 3 or 4) was significantly associated with active inflammation (OR = 10.0, 95% CI = 0.9/108.6, P = .037). There was a strong correlation between IUS and histological measurements of the wall thickness (r = 0.67, P = .01). CONCLUSIONS The presence of hyperechogenic spiculates was associated with the presence of fibrosis, while the presence of marked vascular signals was associated with the presence of inflammation. Wall thickness measured by IUS was reliable and reproducible in comparison with histological measurement.
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Affiliation(s)
- Mariangela Allocca
- Department of Gastroenterology and Endoscopy, IRCCS Hospital San Raffaele and University Vita-Salute San Raffaele, Milan, Italy
| | | | | | | | | | - Antonino Spinelli
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Francesco Faita
- Institute of Clinical Physiology, Italian National Research Council, Pisa, Italy
| | - Silvio Danese
- Department of Gastroenterology and Endoscopy, IRCCS Hospital San Raffaele and University Vita-Salute San Raffaele, Milan, Italy
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6
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Grassi G, Laino ME, Fantini MC, Argiolas GM, Cherchi MV, Nicola R, Gerosa C, Cerrone G, Mannelli L, Balestrieri A, Suri JS, Carriero A, Saba L. Advanced imaging and Crohn’s disease: An overview of clinical application and the added value of artificial intelligence. Eur J Radiol 2022; 157:110551. [DOI: 10.1016/j.ejrad.2022.110551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 09/23/2022] [Accepted: 09/27/2022] [Indexed: 11/03/2022]
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7
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Bartlett DJ, Ramos GP, Fletcher JG, Bruining DH. Imaging Evaluation of Inflammatory Bowel Disease Complications. Gastrointest Endosc Clin N Am 2022; 32:651-673. [PMID: 36202508 DOI: 10.1016/j.giec.2022.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory condition that can progress to fibrostenotic and penetrating complications. Cross-sectional imaging is often needed for accurate diagnosis of IBD complication and for planning the appropriate management strategy. Computed tomography enterography, magnetic resonance enterography, and IBD ultrasound have become key tools for clinicians and interventional endoscopists. This article highlights and discusses various radiologic imaging techniques and their application to the diagnosis and management of IBD complications.
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Affiliation(s)
- David J Bartlett
- Department of Radiology, Mayo Clinic College of Medicine, 200 1st Street, SW, Rochester, MN 55905, USA; Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, 200 1st Street, SW, Rochester, MN 55905, USA
| | - Guilherme Piovezani Ramos
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, 200 1st Street, SW, Rochester, MN 55905, USA
| | - Joel G Fletcher
- Department of Radiology, Mayo Clinic College of Medicine, 200 1st Street, SW, Rochester, MN 55905, USA
| | - David H Bruining
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, 200 1st Street, SW, Rochester, MN 55905, USA.
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8
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The Role of Magnetic Resonance Enterography in Crohn’s Disease: A Review of Recent Literature. Diagnostics (Basel) 2022; 12:diagnostics12051236. [PMID: 35626391 PMCID: PMC9140029 DOI: 10.3390/diagnostics12051236] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/06/2022] [Accepted: 05/13/2022] [Indexed: 11/17/2022] Open
Abstract
Inflammatory bowel disease (IBD) is the term used to identify a form of chronic inflammation of the gastrointestinal tract that primarily contemplates two major entities: ulcerative colitis (UC) and Crohn’s disease (CD). The classic signs are abdominal pain and diarrhoea that correlate with the localization of gastro-enteric disease, although in this pathology extraintestinal symptoms may coexist. The diagnosis of CD relies on a synergistic combination of clinical, laboratory (stool and biochemical), cross-sectional imaging evaluation, as well as endoscopic and histologic assessments. The purpose of this paper is to prove the role of imaging in the diagnosis and follow-up of patients with CD with particular focus on recent innovations of magnetic resonance enterography (MRE) as a pivotal diagnostic tool, analysing the MRE study protocol and imaging features during the various phases of disease activity and its complications.
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9
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Moore MM, Gee MS, Iyer RS, Chan SS, Ayers TD, Bardo DME, Chandra T, Cooper ML, Dotson JL, Gadepalli SK, Gill AE, Levin TL, Nadel HR, Schooler GR, Shet NS, Squires JH, Trout AT, Wall JJ, Rigsby CK. ACR Appropriateness Criteria® Crohn Disease-Child. J Am Coll Radiol 2022; 19:S19-S36. [PMID: 35550801 DOI: 10.1016/j.jacr.2022.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 02/19/2022] [Indexed: 10/18/2022]
Abstract
Crohn disease is an inflammatory condition of the gastrointestinal tract with episodes of exacerbation and remission occurring in children, adolescents, and adults. Crohn disease diagnosis and treatment depend upon a combination of clinical, laboratory, endoscopic, histological, and imaging findings. Appropriate use of imaging provides critical information in the settings of diagnosis, assessment of acute symptoms, disease surveillance, and therapy monitoring. Four variants are discussed. The first variant discusses the initial imaging for suspected Crohn disease before established diagnosis. The second variant pertains to appropriateness of imaging modalities during suspected acute exacerbation. The third variant is a substantial discussion of recommendations related to disease surveillance and monitoring of Crohn disease. Finally, panel recommendations and discussion of perianal fistulizing disease imaging completes the document. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.
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Affiliation(s)
- Michael M Moore
- Co-Director, Division of Radiology Innovation and Value Enhancement, Penn State Health Children's Hospital, Hershey, Pennsylvania.
| | - Michael S Gee
- Research Author, Deputy Chair of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Ramesh S Iyer
- Panel Chair, Seattle Children's Hospital, Seattle, Washington; Chair, SPCC (CoPLL)
| | - Sherwin S Chan
- Panel Vice-Chair, Vice Chair of Radiology, Children's Mercy Hospital, Kansas City, Missouri
| | - Travis D Ayers
- Medical Director of Inflammatory Bowel Disease, Arkansas Children's Hospital, Little Rock, Arkansas; North American Society for Pediatric Gastroenterology, Hepatology & Nutrition
| | - Dianna M E Bardo
- Vice Chair of Radiology-Quality & Safety, Phoenix Children's Hospital, Phoenix, Arizona
| | - Tushar Chandra
- Magnetic Resonance Medical Director, Chief of Research, Chief of Medical Education, Co-Director of 3D and Advanced Imaging Lab, Nemours Children's Hospital, Orlando, Florida
| | - Matthew L Cooper
- Pediatric Radiology Division Chief and Radiology Medical Director, Riley Hospital for Children, Indianapolis, Indiana
| | - Jennifer L Dotson
- Co-Director of the Center for Pediatric and Adolescent IBD, Nationwide Children's Hospital, Columbus, Ohio; American Academy of Pediatrics
| | - Samir K Gadepalli
- Surgical Director for Pediatric IBD, Director of Clinical Research for Pediatric Surgery, and Associate Program Director for Pediatric Surgery Fellowship, University of Michigan, Ann Arbor, Michigan; American Pediatric Surgical Association
| | - Anne E Gill
- Children's Healthcare of Atlanta and Emory University, Atlanta, Georgia
| | - Terry L Levin
- The Children's Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, New York; Chair ACR Pediatric Practice Parameters
| | - Helen R Nadel
- Lucile Packard Children's Hospital at Stanford, Stanford, California; Member Committee on Practice Parameters-Pediatric ACR; and Alternate to Senate Stanford University School of Medicine
| | | | - Narendra S Shet
- Children's National Hospital, Washington, District of Columbia
| | - Judy H Squires
- Chief of Ultrasound and Associate Program Director for Diagnostic Radiology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - Andrew T Trout
- Director of Clinical Research for Radiology and Director of Nuclear Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Vice-Chair-JRCNMT
| | - Jessica J Wall
- Associate Medical Director of Pediatric Transport, UCLA Medical Center, Los Angeles, California; American College of Emergency Physicians
| | - Cynthia K Rigsby
- Specialty Chair, Department of Medical Imaging, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
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10
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Gordon IO, Bettenworth D, Bokemeyer A, Srivastava A, Rosty C, de Hertogh G, Robert ME, Valasek MA, Mao R, Li J, Harpaz N, Borralho P, Pai RK, Odze R, Feakins R, Parker CE, Guizzetti L, Nguyen T, Shackelton LM, Sandborn WJ, Jairath V, Baker M, Bruining D, Fletcher JG, Feagan BG, Pai RK, Rieder F. International consensus to standardise histopathological scoring for small bowel strictures in Crohn's disease. Gut 2022; 71:479-486. [PMID: 33952604 PMCID: PMC8903083 DOI: 10.1136/gutjnl-2021-324374] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/31/2021] [Accepted: 04/26/2021] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Effective medical therapy and validated trial outcomes are lacking for small bowel Crohn's disease (CD) strictures. Histopathology of surgically resected specimens is the gold standard for correlation with imaging techniques. However, no validated histopathological scoring systems are currently available for small bowel stricturing disease. We convened an expert panel to evaluate the appropriateness of histopathology scoring systems and items generated based on panel opinion. DESIGN Modified RAND/University of California Los Angeles methodology was used to determine the appropriateness of 313 candidate items related to assessment of CD small bowel strictures. RESULTS In this exercise, diagnosis of naïve and anastomotic strictures required increased bowel wall thickness, decreased luminal diameter or internal circumference, and fibrosis of the submucosa. Specific definitions for stricture features and technical sampling parameters were also identified. Histopathologically, a stricture was defined as increased thickness of all layers of the bowel wall, fibrosis of the submucosa and bowel wall, and muscularisation of the submucosa. Active mucosal inflammatory disease was defined as neutrophilic inflammation in the lamina propria and any crypt or intact surface epithelium, erosion, ulcer and fistula. Chronic mucosal inflammatory disease was defined as crypt architectural distortion and loss, pyloric gland metaplasia, Paneth cell hyperplasia, basal lymphoplasmacytosis, plasmacytosis and fibrosis, or prominent lymphoid aggregates at the mucosa/submucosa interface. None of the scoring systems used to assess CD strictures were considered appropriate for clinical trials. CONCLUSION Standardised assessment of gross pathology and histopathology of CD small bowel strictures will improve clinical trial efficiency and aid drug development.
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Affiliation(s)
- Ilyssa O Gordon
- Department of Pathology, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Dominik Bettenworth
- Department of Medicine B, Gastroenterology and Hepatology, University of Münster, Münster, NRW, Germany
| | - Arne Bokemeyer
- Department of Medicine B, Gastroenterology and Hepatology, University of Münster, Münster, NRW, Germany
| | - Amitabh Srivastava
- Department of Pathology, Brigham and Women’s Hospital, Boston, Massachusetts, USA
| | - Christophe Rosty
- Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia,Department of Clinical Pathology, The University of Melbourne, Parville, VIC, Australia,Envoi Specialist Pathologists, Brisbane, QLD, Australia
| | - Gert de Hertogh
- Department of Pathology, University Hospital Gasthuisberg, KULeuven, Leuven, Belgium
| | - Marie E Robert
- Department of Pathology and Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Mark A Valasek
- Department of Pathology, University of California San Diego, La Jolla, California, USA
| | - Ren Mao
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China,Department of Inflammation and Immunity, Cleveland Clinic Foundation, Cleveland, Ohio, USA,Department of Gastroenterology, Hepatology, and Nutrition, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Jiannan Li
- Department of Inflammation and Immunity, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Noam Harpaz
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Paula Borralho
- Faculdade de Medicina da Universidade de Lisboa, Instituto de Anatomia Patológica, Lisbon, Portugal
| | - Reetesh K Pai
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | | | - Roger Feakins
- Department of Cellular Pathology, Royal London Hospital, London, UK
| | - Claire E Parker
- Alimentiv, Inc (formerly Robarts Clinical Trials, Inc), London, Ontario, Canada
| | - Leonardo Guizzetti
- Alimentiv, Inc (formerly Robarts Clinical Trials, Inc), London, Ontario, Canada
| | - Tran Nguyen
- Alimentiv, Inc (formerly Robarts Clinical Trials, Inc), London, Ontario, Canada
| | - Lisa M Shackelton
- Alimentiv, Inc (formerly Robarts Clinical Trials, Inc), London, Ontario, Canada
| | - William J Sandborn
- Division of Gastroenterology, University of California San Diego, La Jolla, California, USA
| | - Vipul Jairath
- Alimentiv, Inc (formerly Robarts Clinical Trials, Inc), London, Ontario, Canada,Department of Medicine and Department of Biostatistics and Epidemiology, Western University, London, Ontario, Canada
| | - Mark Baker
- Section of Abdominal Imaging, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - David Bruining
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Joel G Fletcher
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Brian G Feagan
- Alimentiv, Inc (formerly Robarts Clinical Trials, Inc), London, Ontario, Canada,Department of Medicine and Department of Biostatistics and Epidemiology, Western University, London, Ontario, Canada
| | - Rish K Pai
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, Arizona, USA
| | - Florian Rieder
- Department of Inflammation and Immunity, Cleveland Clinic Foundation, Cleveland, Ohio, USA .,Department of Gastroenterology, Hepatology, and Nutrition, Cleveland Clinic Foundation, Cleveland, Ohio, USA
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11
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Shivaji UN, Segal JP, Plumb AA, Quraishi MN, Ghosh S, Iacucci M. Intestinal ultrasonography: a useful skill for efficient, non-invasive monitoring of patients with IBD using a clinic-based point-of-care approach. Frontline Gastroenterol 2021; 13:447-451. [PMID: 36051957 PMCID: PMC9380770 DOI: 10.1136/flgastro-2021-101852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 07/07/2021] [Indexed: 02/04/2023] Open
Affiliation(s)
- Uday N Shivaji
- National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, University Hospitals, Birmingham, UK,Gastroenterology, University of Birmingham Institute of Immunology and Immunotherapy, Birmingham, UK
| | | | - Andrew A Plumb
- Radiology, University College London Hospitals NHS Foundation Trust, London, UK
| | | | - Subrata Ghosh
- National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, University Hospitals, Birmingham, UK,University of Birmingham Institute of Immunology and Immunotherapy, Birmingham, UK,College of Medicine and Health, University College Cork, Cork, Ireland
| | - Marietta Iacucci
- National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, University Hospitals, Birmingham, UK,University of Birmingham Institute of Immunology and Immunotherapy, Birmingham, UK
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12
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Kim DW, Park SH, Lee JS, Kim HJ, Kim AY, Ye BD, Yang SK. Flattening in the Anteroposterior Direction of the Terminal Ileum or Sigmoid Colon Lying Across the Psoas Muscle on Magnetic Resonance Enterography in Patients with Crohn's Disease. Korean J Radiol 2021; 22:1640-1649. [PMID: 34269535 PMCID: PMC8484150 DOI: 10.3348/kjr.2020.1420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 03/17/2021] [Accepted: 04/27/2021] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Flattening in the anteroposterior direction (AP flattening) of the terminal ileum (TI) or sigmoid colon (SC) lying across the psoas muscle, on magnetic resonance enterography (MRE), might mimic bowel inflammation in the coronal view. This study investigated the prevalence of AP flattening and the factors associated with its development. MATERIALS AND METHODS A total of 364 surgery-naïve patients with Crohn's disease (CD) who had undergone MRE were retrospectively reviewed. AP flattening was defined as a luminal collapse in the anteroposterior direction, with a bowel width in the axial plane < 1/4 of the normal diameter without reduction of bowel width in coronal images. The prevalence of AP flattening of the TI and SC on MRE in patients with bowel segments lying across the psoas muscle was determined. We further compared the rate of AP flattening between MRE and computed tomography enterography (CTE) in a subcohort of patients with prior CTE. The factors associated with AP flattening were analyzed using multivariable logistic regression in a subcohort of patients with endoscopic findings of TI. RESULTS Three hundred and twenty-two and 363 patients, respectively, had TI and SC lying across the psoas muscle. The prevalence of AP flattening on MRE was 7.5% (24/322) in TI and 5.2% (19/363) in SC. The prevalences were significantly higher on MRE than on CTE in both the TI (7.3% [12/164] vs. 0.6% [1/164]; p = 0.003) and SC (5.8% [11/190] vs. 1.6% [3/190]; p = 0.039). AP flattening of the TI was independently and strongly associated with the absence of CD inflammation on endoscopy, with an adjusted odds ratio of 0.066 (p = 0.003) for the presence versus the absence (reference) of inflammation. CONCLUSION AP flattening of the TI or SC lying across the psoas muscle was uncommon and predominantly observed on MRE of the bowel without CD inflammation.
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Affiliation(s)
- Dong Wook Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Seong Ho Park
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.,Inflammatory Bowel Disease Center, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
| | - Jong Seok Lee
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Hyun Jin Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Ah Young Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Byong Duk Ye
- Inflammatory Bowel Disease Center, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.,Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Suk Kyun Yang
- Inflammatory Bowel Disease Center, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.,Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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13
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Stocker D, King MJ, El Homsi M, Carbonell G, Bane O, Cuevas J, Liu Q, Cho J, Doucette JT, Greenstein AJ, Colombel JF, Harpaz N, Taouli B. Luminal Narrowing Alone Allows an Accurate Diagnosis of Crohn's Disease Small Bowel Strictures at Cross-Sectional Imaging. J Crohns Colitis 2021; 15:1009-1018. [PMID: 33319236 DOI: 10.1093/ecco-jcc/jjaa256] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIMS Current consensus recommendations define small bowel strictures [SBS] in Crohn's disease [CD] on imaging as luminal narrowing with unequivocal upstream bowel dilation. The aim of this study was to [1] evaluate the performance of cross-sectional imaging for SBS diagnosis in CD using luminal narrowing with upstream SB dilation and luminal narrowing with or without upstream dilation, and [2] compare the diagnostic performance of computed tomography [CT] and magnetic resonance enterography [MRE] for SBS diagnosis. METHODS In total, 111 CD patients [81 with pathologically confirmed SBS, 30 controls] who underwent CT and/or MRE were assessed. Two radiologists [R1, R2] blinded to pathology findings independently assessed the presence of luminal narrowing and upstream SB dilation. Statistical analysis was performed for [1] luminal narrowing with or without SB upstream dilation ['possible SBS'], and [2] luminal narrowing with upstream SB dilation ≥3 cm ['definite SBS']. RESULTS Sensitivity for detecting SBS was significantly higher using 'possible SBS' [R1, 82.1%; R2, 77.9%] compared to 'definite SBS' [R1, 62.1%; R2, 65.3%; p < 0.0001] with equivalent specificity [R1, 96.7%; R2, 93.3%; p > 0.9]. Using the criterion 'possible SBS', sensitivity/specificity were equivalent between CT [R1, 87.3%/93.3%; R2, 83.6%/86.7%] and MRE [R1, 75.0%/100%; R2: 70.0%/100%]. Using the criterion 'definite SBS', CT showed significantly higher sensitivity [78.2%] compared to MRE [40.0%] for R1 but not R2 with similar specificities [CT, 86.7-93.3%; MRE, 100%]. CONCLUSION SBS can be diagnosed using luminal narrowing alone without the need for upstream dilation. CT and MRE show similar diagnostic performance for SBS diagnosis using luminal narrowing with or without upstream dilation.
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Affiliation(s)
- Daniel Stocker
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Institute of Diagnostic and Interventional Radiology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Michael J King
- Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Maria El Homsi
- Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Guillermo Carbonell
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Department of Radiology, Virgen de la Arrixaca University Clinical Hospital, University of Murcia, Murcia, Spain
| | - Octavia Bane
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jordan Cuevas
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Qingqing Liu
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Judy Cho
- Charles Bronfman Institute for Personalized Medicine, Departments of Genetics and Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - John T Doucette
- Division of Biostatistics, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Jean-Frederic Colombel
- The Dr Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Noam Harpaz
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Bachir Taouli
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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14
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Abstract
ABSTRACT In this review article, we present the latest developments in quantitative imaging biomarkers based on magnetic resonance imaging (MRI), applied to the diagnosis, assessment of response to therapy, and assessment of prognosis of Crohn disease. We also discuss the biomarkers' limitations and future prospects. We performed a literature search of clinical and translational research in Crohn disease using diffusion-weighted MRI (DWI-MRI), dynamic contrast-enhanced MRI (DCE-MRI), motility MRI, and magnetization transfer MRI, as well as emerging topics such as T1 mapping, radiomics, and artificial intelligence. These techniques are integrated in and combined with qualitative image assessment of magnetic resonance enterography (MRE) examinations. Quantitative MRI biomarkers add value to MRE qualitative assessment, achieving substantial diagnostic performance (area under receiver-operating curve = 0.8-0.95). The studies reviewed show that the combination of multiple MRI sequences in a multiparametric quantitative fashion provides rich information that may help for better diagnosis, assessment of severity, prognostication, and assessment of response to biological treatment. However, the addition of quantitative sequences to MRE examinations has potential drawbacks, including increased scan time and the need for further validation before being used in therapeutic drug trials as well as the clinic.
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15
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Tavares de Sousa H, Gullo I, Castelli C, Dias CC, Rieder F, Carneiro F, Magro F. Ileal Crohn's Disease Exhibits Similar Transmural Fibrosis Irrespective of Phenotype. Clin Transl Gastroenterol 2021; 12:e00330. [PMID: 33848279 PMCID: PMC8049162 DOI: 10.14309/ctg.0000000000000330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 02/17/2021] [Indexed: 01/22/2023] Open
Abstract
INTRODUCTION In Crohn's disease (CD), the assessment of transmural inflammation and fibrosis is of utmost importance. This study aimed to quantify these parameters in CD ileal specimens and correlate them with disease progression. METHODS This is a retrospective unicentric study based on the analysis of archived specimens (n = 103) of primary ileal resection. Data were retrieved from a prospective national inflammatory bowel disease registry. Two pathologists, blinded for CD phenotype and clinical indications for surgery, examined 3 sections per patient and graded inflammation and fibrosis, based on a histopathological score. RESULTS Penetrating (B3, n = 74) CD exhibited significantly higher inflammation in diseased areas, compared with stricturing (B2, n = 29) disease (score 3: 96% vs 76%, P = 0.005 in inflamed areas; 78% vs 55%, P = 0.019 in most affected areas). This was also observed for the comparison of B2 CD with B3 CD with (B3s, n = 54) and without associated stricture (B3o, n = 20): B3s vs B2: 81% vs 55%, P = 0.033 in most affected areas; B3o vs B2: 100% vs 76%, P = 0.006 in inflamed areas; 70% vs 55%, P = 0.039 in most affected areas. We could not show differences in fibrosis scores between the subphenotypes. Postoperative new penetrating events occurred only in B3s (n = 6, 11%, P = 0.043) patients. The changing of biologic therapy after surgery correlated with severe inflammation at the proximal ileal margin (55% changed vs 25% not changed, P = 0.035). DISCUSSION In our cohort, fibrosis scores and fibromuscular changes were comparable, irrespective of CD phenotype. Inflammation severity was the major differentiator between penetrating and stricturing disease.JOURNAL/cltg/04.03/01720094-202104000-00012/inline-graphic1/v/2021-04-13T161901Z/r/image-tiff.
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Affiliation(s)
- Helena Tavares de Sousa
- Gastroenterology Department, Algarve University Hospital Center, Portimão, Portugal
- ABC—Algarve Biomedical Center, University of Algarve, Faro, Portugal
| | - Irene Gullo
- Department of Pathology, São João University Hospital Center and Faculty of Medicine, University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
- Institute of Investigation and Innovation in Health (i3S), University of Porto, Porto, Portugal
| | - Claudia Castelli
- Section of Pathology, Department of Diagnostics and Public Health, University and Hospital Trust of Verona, Verona, Italy
| | - Cláudia Camila Dias
- Department of Community Medicine, Information and Decision in Health, Faculty of Medicine, University of Porto, Porto, Portugal
- Center for Health Technology and Services Research, University of Porto, Porto, Portugal
| | - Florian Rieder
- Department of Gastroenterology, Hepatology, and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Fátima Carneiro
- Department of Pathology, São João University Hospital Center and Faculty of Medicine, University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
- Institute of Investigation and Innovation in Health (i3S), University of Porto, Porto, Portugal
| | - Fernando Magro
- Unit of Pharmacology and Therapeutics, Department of Biomedicine, Faculty of Medicine, University of Porto, Portugal
- Department of Gastroenterology, São João University Hospital Center, Porto, Portugal
- MedInUP, Center for Drug Discovery and Innovative Medicines, Porto, Portugal
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16
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Foti PV, Travali M, Farina R, Palmucci S, Coronella M, Spatola C, Puzzo L, Garro R, Inserra G, Riguccio G, Zanoli L, Basile A. Can Conventional and Diffusion-Weighted MR Enterography Biomarkers Differentiate Inflammatory from Fibrotic Strictures in Crohn's Disease? ACTA ACUST UNITED AC 2021; 57:medicina57030265. [PMID: 33803953 PMCID: PMC8000737 DOI: 10.3390/medicina57030265] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/07/2021] [Accepted: 03/10/2021] [Indexed: 12/12/2022]
Abstract
Background and Objectives: To retrospectively assess the value of magnetic resonance enterography (MRE) parameters derived from conventional and diffusion weighted imaging (DWI) sequences to differentiate fibrotic strictures from inflammatory ones in adult patients with Crohn’s disease (CD), using surgical specimens as the histopathological reference standard. Material and Methods: Twenty-three patients with CD who had undergone surgical resection of ileal strictures with full-thickness histopathologic analysis within 3 months from preoperative MRE were included. Two radiologists blinded to histopathology in consensus evaluated the following biomarkers on MRE images matched to resected pathological specimens: T1 ratio, T2 ratio, enhancement pattern, mural thickness, pre-stenotic luminal diameter, and apparent diffusion coefficient (ADC). A blinded pathologist graded stricture histological specimens with acute inflammation score (AIS) and fibrosis score (FS). MRE measurements were correlated with the reference standard. Results: Inflammation and fibrosis coexisted in 78.3% of patients. T2 ratio was reduced in patients with severe fibrosis (p = 0.01). Pre-stenotic bowel dilatation positively correlated with FS (p = 0.002). The ADC value negatively correlated with FS (p < 0.001) and was different between FS grades (p < 0.05). The area under the receiver operating characteristic curve for discriminating between none and mild/moderate–severe bowel wall fibrosis was 0.75 for pre-stenotic bowel dilatation (sensitivity 100%, specificity 44.4%) and 0.97 for ADC (sensitivity 80%, specificity 100%). Conclusions: Inflammation and fibrosis often coexist in CD bowel strictures needing surgery. The combination of parameters derived from conventional MR sequences (T2 ratio, pre-stenotic dilatation) and from DWI (ADC) may provide a contribution to detect and grade bowel fibrosis in adult CD patients.
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Affiliation(s)
- Pietro Valerio Foti
- Department of Medical Surgical Sciences and Advanced Technologies “G.F. Ingrassia”—Radiology I Unit, University Hospital Policlinico “G. Rodolico-San Marco”, Via Santa Sofia, 78-95123 Catania, Italy; (M.T.); (R.F.); (S.P.); (M.C.); (C.S.); (A.B.)
- Correspondence: ; Tel.: +39-095-378-2360; Fax: +39-095-378-2368
| | - Mario Travali
- Department of Medical Surgical Sciences and Advanced Technologies “G.F. Ingrassia”—Radiology I Unit, University Hospital Policlinico “G. Rodolico-San Marco”, Via Santa Sofia, 78-95123 Catania, Italy; (M.T.); (R.F.); (S.P.); (M.C.); (C.S.); (A.B.)
| | - Renato Farina
- Department of Medical Surgical Sciences and Advanced Technologies “G.F. Ingrassia”—Radiology I Unit, University Hospital Policlinico “G. Rodolico-San Marco”, Via Santa Sofia, 78-95123 Catania, Italy; (M.T.); (R.F.); (S.P.); (M.C.); (C.S.); (A.B.)
| | - Stefano Palmucci
- Department of Medical Surgical Sciences and Advanced Technologies “G.F. Ingrassia”—Radiology I Unit, University Hospital Policlinico “G. Rodolico-San Marco”, Via Santa Sofia, 78-95123 Catania, Italy; (M.T.); (R.F.); (S.P.); (M.C.); (C.S.); (A.B.)
| | - Maria Coronella
- Department of Medical Surgical Sciences and Advanced Technologies “G.F. Ingrassia”—Radiology I Unit, University Hospital Policlinico “G. Rodolico-San Marco”, Via Santa Sofia, 78-95123 Catania, Italy; (M.T.); (R.F.); (S.P.); (M.C.); (C.S.); (A.B.)
| | - Corrado Spatola
- Department of Medical Surgical Sciences and Advanced Technologies “G.F. Ingrassia”—Radiology I Unit, University Hospital Policlinico “G. Rodolico-San Marco”, Via Santa Sofia, 78-95123 Catania, Italy; (M.T.); (R.F.); (S.P.); (M.C.); (C.S.); (A.B.)
| | - Lidia Puzzo
- Department of Medical Surgical Sciences and Advanced Technologies “G.F. Ingrassia”—Anatomic Pathology Section, University of Catania, Via Santa Sofia, 78-95123 Catania, Italy; (L.P.); (R.G.)
| | - Rossella Garro
- Department of Medical Surgical Sciences and Advanced Technologies “G.F. Ingrassia”—Anatomic Pathology Section, University of Catania, Via Santa Sofia, 78-95123 Catania, Italy; (L.P.); (R.G.)
| | - Gaetano Inserra
- Department of Clinical and Experimental Medicine, U.O. Medicina Interna, University of Catania, Via Santa Sofia, 78-95123 Catania, Italy; (G.I.); (G.R.)
| | - Gaia Riguccio
- Department of Clinical and Experimental Medicine, U.O. Medicina Interna, University of Catania, Via Santa Sofia, 78-95123 Catania, Italy; (G.I.); (G.R.)
| | - Luca Zanoli
- Department of Clinical and Experimental Medicine, University of Catania, Via Santa Sofia, 78-95123 Catania, Italy;
| | - Antonio Basile
- Department of Medical Surgical Sciences and Advanced Technologies “G.F. Ingrassia”—Radiology I Unit, University Hospital Policlinico “G. Rodolico-San Marco”, Via Santa Sofia, 78-95123 Catania, Italy; (M.T.); (R.F.); (S.P.); (M.C.); (C.S.); (A.B.)
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17
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A novel identification system combining diffusion kurtosis imaging with conventional magnetic resonance imaging to assess intestinal strictures in patients with Crohn's disease. Abdom Radiol (NY) 2021; 46:936-947. [PMID: 32964274 DOI: 10.1007/s00261-020-02765-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 09/04/2020] [Accepted: 09/10/2020] [Indexed: 01/16/2023]
Abstract
PURPOSE To determine the utility of diffusion kurtosis imaging (DKI) for assessing bowel fibrosis and to establish a new magnetic resonance imaging (MRI)-based classification based on DKI and conventional MRI parameters for characterizing intestinal strictures in Crohn's disease (CD) using the histological evaluation of resected intestine samples as the reference standard. METHODS Thirty-one patients with CD undergoing preoperative conventional MRI and diffusion-weighted imaging (DWI) (b values = 0-2000 s/mm2) were consecutively enrolled. We classified the mural T2-weighted signal intensity and arterial-phase enhancement patterns on conventional MRI. We also measured DWI-derived apparent diffusion coefficients (ADCs) and DKI-derived apparent diffusion for non-Gaussian distribution (Dapp) and apparent diffusional kurtosis (Kapp). A new MRI-based classification was established to characterize intestinal strictures in CD. Its performance was validated in nine additional patients with CD. RESULTS Histological inflammation grades were significantly correlated to T2-weighted signal intensity (r = 0.477; P < 0.001) and ADC (r = - 0.226; P = 0.044). Histological fibrosis grades were moderately correlated to Kapp (r = 0.604, P < 0.001); they were also correlated to Dapp (r = - 0.491; P < 0.001) and ADC (r = - 0.270; P = 0.015). T2-weighted signal intensity could differentiate between no-to-mild and moderate-to-severe bowel inflammation (sensitivity, 0.970; specificity, 0.479). Kapp could differentiate between no-to-mild and moderate-to-severe bowel fibrosis (sensitivity, 0.959; specificity, 0.781). The agreement between the new MRI-based classification and the histological classification was moderate in the test (κ = 0.507; P < 0.001) and validation (κ = 0.530; P < 0.001) sets. CONCLUSIONS DKI can be used to assess bowel fibrosis. The new MRI-based classification can help to distinguish between fibrotic and inflammatory intestinal strictures in patients with CD.
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18
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Grajo JR, Huang C, Dillman JR, Gee MS, Jaffe TA, Soto JA, Baker ME. MR Enterography of Complicated Crohn Disease: Stricturing and Penetrating Disease. Top Magn Reson Imaging 2021; 30:23-30. [PMID: 33528209 DOI: 10.1097/rmr.0000000000000266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Stricturing and penetrating disease are complications of Crohn disease (CD) that significantly affect patient outcomes. Careful evaluation for such complications is critical to the interpretation of magnetic resonance enterography. This manuscript outlines the key findings related to stricturing and penetrating CD and discusses current understanding of the pathophysiology and prognosis of complicated CD based on the literature.
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Affiliation(s)
- Joseph R Grajo
- Department of Radiology, University of Florida College of Medicine, Gainesville, FL
| | - Chenchan Huang
- Department of Radiology, NYU Grossman School of Medicine, New York, NY
| | - Jonathan R Dillman
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Michael S Gee
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Tracy A Jaffe
- Department of Radiology, Duke University School of Medicine, Durham, NC
| | - Jorge A Soto
- Department of Radiology, Boston University School of Medicine, Boston, MA
| | - Mark E Baker
- Department of Radiology, Cleveland Clinic Lerner College of Medicine, Cleveland, OH
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19
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Ta AD, Ollberding NJ, Karns R, Haberman Y, Alazraki AL, Hercules D, Baldassano R, Markowitz J, Heyman MB, Kim S, Kirschner B, Shapiro JM, Noe J, Oliva-Hemker M, Otley A, Pfefferkorn M, Kellermayer R, Snapper S, Rabizadeh S, Xavier R, Dubinsky M, Hyams J, Kugathasan S, Jegga AG, Dillman JR, Denson LA. Association of Baseline Luminal Narrowing With Ileal Microbial Shifts and Gene Expression Programs and Subsequent Transmural Healing in Pediatric Crohn Disease. Inflamm Bowel Dis 2021; 27:1707-1718. [PMID: 33452801 PMCID: PMC8528150 DOI: 10.1093/ibd/izaa339] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND Transmural healing (TH) is associated with better long-term outcomes in Crohn disease (CD), whereas pretreatment ileal gene signatures encoding myeloid inflammatory responses and extracellular matrix production are associated with stricturing. We aimed to develop a predictive model for ileal TH and to identify ileal genes and microbes associated with baseline luminal narrowing (LN), a precursor to strictures. MATERIALS AND METHODS Baseline small bowel imaging obtained in the RISK pediatric CD cohort study was graded for LN. Ileal gene expression was determined by RNASeq, and the ileal microbial community composition was characterized using 16S rRNA amplicon sequencing. Clinical, demographic, radiologic, and genomic variables were tested for association with baseline LN and future TH. RESULTS After controlling for ileal location, baseline ileal LN (odds ratio [OR], 0.3; 95% confidence interval [CI], 0.1-0.8), increasing serum albumin (OR, 4; 95% CI, 1.3-12.3), and anti-Saccharomyces cerevisiae antibodies IgG serology (OR, 0.97; 95% CI, 0.95-1) were associated with subsequent TH. A multivariable regression model including these factors had excellent discriminant power for TH (area under the curve, 0.86; positive predictive value, 80%; negative predictive value, 87%). Patients with baseline LN exhibited increased Enterobacteriaceae and inflammatory and extracellular matrix gene signatures, coupled with reduced levels of butyrate-producing commensals and a respiratory electron transport gene signature. Taxa including Lachnospiraceae and the genus Roseburia were associated with increased respiratory and decreased inflammatory gene signatures, and Aggregatibacter and Blautia bacteria were associated with reduced extracellular matrix gene expression. CONCLUSIONS Pediatric patients with CD with LN at diagnosis are less likely to achieve TH. The association between specific microbiota, wound healing gene programs, and LN may suggest future therapeutic targets.
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Affiliation(s)
- Allison D Ta
- Cincinnati Children’s Medical Hospital Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Nicholas J Ollberding
- Cincinnati Children’s Medical Hospital Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Rebekah Karns
- Cincinnati Children’s Medical Hospital Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Yael Haberman
- Cincinnati Children’s Medical Hospital Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA,Sheba Medical Center, Tel-HaShomer, affiliated with the Tel-Aviv University, Tel Aviv, Israel
| | - Adina L Alazraki
- Emory University and Children’s Healthcare of Atlanta, Atlanta, Georgia, USA
| | - David Hercules
- Emory University and Children’s Healthcare of Atlanta, Atlanta, Georgia, USA
| | - Robert Baldassano
- The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - James Markowitz
- Cohen Children’s Medical Center of New York, New Hyde Park, New York, USA
| | - Melvin B Heyman
- University of California San Francisco, San Francisco, California, USA
| | - Sandra Kim
- Children’s Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania, USA
| | | | | | - Joshua Noe
- Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | | | | | | | - Richard Kellermayer
- Texas Children’s Hospital, Baylor College School of Medicine, Houston, Texas, USA
| | - Scott Snapper
- Children’s Hospital-Boston, Boston, Massachusetts, USA
| | | | - Ramnik Xavier
- Broad Institute at Massachusetts Institute of Technology, Cambridge, Massachusetts, USA,Massachusetts General Hospital, Cambridge, Massachusetts, USA
| | | | - Jeffrey Hyams
- Connecticut Children’s Medical Center, Hartford, Connecticut, USA
| | - Subra Kugathasan
- Emory University and Children’s Healthcare of Atlanta, Atlanta, Georgia, USA
| | - Anil G Jegga
- Cincinnati Children’s Medical Hospital Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jonathan R Dillman
- Cincinnati Children’s Medical Hospital Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Lee A Denson
- Cincinnati Children’s Medical Hospital Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA,Address correspondence to: Lee A. Denson, MD, 3333 Burnett Avenue, MLC 2010, Cincinnati, OH 45229 ()
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20
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Greer MLC, Cytter-Kuint R, Pratt LT, Soboleski D, Focht G, Castro DA. Clinical-stage Approaches for Imaging Chronic Inflammation and Fibrosis in Crohn's Disease. Inflamm Bowel Dis 2020; 26:1509-1523. [PMID: 32946578 DOI: 10.1093/ibd/izaa218] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Indexed: 02/06/2023]
Abstract
The number of imaging-based indices developed for inflammatory bowel disease as research tools, objectively measuring ileocolonic and perianal activity and treatment response, has expanded in the past 2 decades. Created primarily to assess Crohn's disease (CD), there is increasing adoption of these indices into the clinical realm to guide patient care. This translation has been facilitated by validation in adult and pediatric populations, prompted by simplification of score calculations needed for practical application outside the research environment. The majority of these indices utilize magnetic resonance imaging (MRI), specifically MR enterography (MRE) and pelvic MRI, and more recently ultrasound. This review explores validated indices by modality, anatomic site and indication, including for documentation of the presence and extent of CD, disease progression, complications, and treatment response, highlighting those in clinical use or with the potential to be. As well, it details index imaging features used to quantify chronic inflammatory activity, severity, and to lesser extent fibrosis, in addition to their reference standards and any modifications. Validation in the pediatric population of indices primarily developed in adult cohorts such as the Magnetic Resonance Index of Activity (MaRIA), the Simplified Magnetic Resonance Index of Activity (MARIAs), and the MRE global score (MEGS), together with newly developed pediatric-specific indices, are discussed. Indices that may be predictive of disease course and investigational techniques with the potential to provide future imaging biomarkers, such as multiparametric MRI, are also briefly considered.
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Affiliation(s)
- Mary-Louise C Greer
- Department of Diagnostic Imaging, The Hospital for Sick Children; Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
| | | | - Li-Tal Pratt
- Pediatric Imaging Unit, Imaging Division, Sourasky Medical Center, Tel Aviv, Israel
| | - Don Soboleski
- Department of Diagnostic Imaging, Kingston Health Sciences Centre, Queen's University, Kingston, Ontario, Canada
| | - Gili Focht
- The Juliet Keidan Institute of Pediatric Gastroenterology, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Denise A Castro
- Department of Diagnostic Imaging, Kingston Health Sciences Centre, Queen's University, Kingston, Ontario, Canada
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Tavares de Sousa H, Estevinho MM, Peyrin-Biroulet L, Danese S, Dias CC, Carneiro F, Magro F. Transmural Histological Scoring Systems in Crohn's Disease: A Systematic Review With Assessment of Methodological Quality and Operating Properties. J Crohns Colitis 2020; 14:743-756. [PMID: 31985012 DOI: 10.1093/ecco-jcc/jjz178] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND The relative proportion of inflammation and fibrosis in a stricture is highly relevant in defining the clinical approach for Crohn's disease [CD] patients. Whereas transmural inflammation in CD can be accurately estimated by cross-sectional imaging, evaluating the extent and severity of fibrosis still requires surgical pathology of intestinal resection specimens. This study systematically reviewed all existing transmural histopathological scoring systems developed for the assessment of inflammation and/or fibrosis in CD. METHODS A systematic review of histopathological scoring systems for the assessment of transmural inflammation and/or fibrosis in CD, focusing on originally developed scoring systems. Risk of bias, methodological quality, and operating or psychometric properties [validity, reliability, responsiveness, and feasibility] of each histological scoring system were analysed. RESULTS A total of 29 original scoring systems were included in this review. Three scoring systems were highlighted as the most widely reproduced, one aimed at assessing inflammation only and two aimed at assessing inflammation and fibrosis. These scores were more widely reproduced probably due to their ease of application in clinical studies. Two highly comprehensive scores were identified, showing good operating properties and high methodological quality, as well as the lowest risk of bias; these should, therefore, be further validated in clinical research studies. CONCLUSIONS This study reviewed all existing transmural histopathological scoring systems for the assessment of inflammation and/or fibrosis in CD and identified the most reliable and accurate scores for clinical research and clinical practice settings.
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Affiliation(s)
- Helena Tavares de Sousa
- Gastroenterology Department - Portimão Unit, Algarve University Hospital Centre, Portimão, Portugal.,Algarve Biomedical Centre, University of Algarve, Faro, Portugal
| | - Maria Manuela Estevinho
- Department of Biomedicine, Unit of Pharmacology and Therapeutics, University of Porto, Porto, Portugal
| | - Laurent Peyrin-Biroulet
- Department of Gastroenterology, Nancy University Hospital, University of Lorraine, Vandœuvre-lès-Nancy, France
| | - Silvio Danese
- Gastrointestinal Immunopathology Laboratory and IBD Unit, Humanitas Clinical and Research Center, Milan, Italy
| | - Cláudia Camila Dias
- Department of Community Medicine, Information and Decision in Health, University of Porto, Porto, Portugal.,Centre for Health Technology and Services Research, University of Porto, Porto, Portugal
| | - Fátima Carneiro
- Department of Pathology, São João University Hospital and Faculty of Medicine, University of Porto, Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto [Ipatimup]/i3S, Porto, Portugal
| | - Fernando Magro
- Department of Biomedicine, Unit of Pharmacology and Therapeutics, University of Porto, Porto, Portugal.,Department of Gastroenterology, São João University Hospital, Porto, Portugal.,MedInUP, Centre for Drug Discovery and Innovative Medicines, Porto, Portugal
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22
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De Voogd FA, Mookhoek A, Gecse KB, De Hertogh G, Bemelman WA, Buskens CJ, D'Haens GR. Systematic Review: Histological Scoring of Strictures in Crohn's Disease. J Crohns Colitis 2020; 14:734-742. [PMID: 32645156 DOI: 10.1093/ecco-jcc/jjz177] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS In Crohn's disease, many patients develop a stricture, which can due to inflammation, fibrosis and muscular changes or all at the same time. Determining the predominant component has therapeutic consequences but remains challenging. To develop imaging techniques that assess the nature of a stricture, a gold standard is needed and histopathology is considered as such. This paper provides an overview of published histological scoring systems for strictures in Crohn's disease. METHODS A systematic literature review according to PRISMA guidelines was performed of histological scoring indices that assessed whether a stricture was inflammation-predominant or fibrosis-predominant. Multiple libraries were searched from inception to December 2018. Two reviewers independently assessed abstracts and full-texts. RESULTS Sixteen articles were identified as suitable for this systematic review. A large number of parameters were reported. Extent of neutrophil infiltration and extent of fibrosis in the bowel wall were most frequently described to reflect severity of inflammation and fibrosis, respectively. Among the 16 studies, only two described a numerical scoring system for the inflammatory and fibrotic component separately. Smooth muscle changes were scored in a minority of studies. CONCLUSIONS Multiple scoring systems have been developed. There was large heterogeneity in scoring per parameter and construction of numerical scoring systems. Therefore, we feel that none of the systems is suitable to be used as gold standard. We offer an overview of histological parameters that could be incorporated in a future histological scoring index for strictures.
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Affiliation(s)
- F A De Voogd
- Amsterdam UMC, Amsterdam Medical Center, University of Amsterdam, Department of Gastroenterology and Hepatology, Amsterdam, The Netherlands
| | - A Mookhoek
- Amsterdam UMC, VU Medical Center, VU University, Department of Pathology, Amsterdam, The Netherlands
| | - K B Gecse
- Amsterdam UMC, Amsterdam Medical Center, University of Amsterdam, Department of Gastroenterology and Hepatology, Amsterdam, The Netherlands
| | - G De Hertogh
- University Hospitals Leuven, University of Leuven, Department of Pathology, Leuven, Belgium
| | - W A Bemelman
- Amsterdam UMC, Amsterdam Medical Center, University of Amsterdam, Department of Surgery, Amsterdam, The Netherlands
| | - C J Buskens
- Amsterdam UMC, Amsterdam Medical Center, University of Amsterdam, Department of Surgery, Amsterdam, The Netherlands
| | - G R D'Haens
- Amsterdam UMC, Amsterdam Medical Center, University of Amsterdam, Department of Gastroenterology and Hepatology, Amsterdam, The Netherlands
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Adler J, Lin CC, Gadepalli SK, Dombkowski KJ. Association Between Steroid-Sparing Therapy and the Risk of Perianal Fistulizing Complications Among Young Patients With Crohn Disease. JAMA Netw Open 2020; 3:e207378. [PMID: 32515798 PMCID: PMC7284306 DOI: 10.1001/jamanetworkopen.2020.7378] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
IMPORTANCE Perianal fistulizing complications (PFCs) develop in 15% to 30% of patients with Crohn disease (CD), are difficult to treat, worsen quality of life, increase cost of care, and commonly recur. Evidence-based strategies to prevent PFCs are lacking. OBJECTIVES To investigate the effectiveness of medical therapy for reducing risk of PFCs among young people with CD and to test the hypothesis that steroid-sparing therapy (SST) use would be associated with reduced risk of PFC development. DESIGN, SETTING, AND PARTICIPANTS In this comparative effectiveness analysis of commercial administrative claims from January 1, 2001, through June 30, 2016, patients who did or did not initiate SST were matched via propensity score to adjust for all available confounders. Using Optum's Clinformatics Data Mart, a deidentified database of US commercial administrative claims, all patients aged 5 to 24 years with CD (January 1, 2001, through June 30, 2016) were identified. The index date was the CD diagnosis date. Patients with PFCs or SST use at or before CD diagnosis were excluded. The dates of analysis were October 2017 to February 2020. EXPOSURES The primary exposure of interest was SST initiation, including immunomodulators and/or anti-tumor necrosis factor α (anti-TNFα) medications, initiated before either PFC development or the end of the study period. MAIN OUTCOMES AND MEASURES The primary outcome was PFC development. Propensity score matching was used to balance baseline characteristics. Cox proportional hazards multivariable regression analyses were used to estimate hazard ratios (HRs) with 95% CIs for PFC development. RESULTS Among 2214 young people with CD without PFCs identified, the mean (SD) age at CD diagnosis was 17.0 (4.5) years, and 1151 (52.0%) were male. Among the cohort, 1242 patients (56.1%) initiated SST before PFC development or the end of 24-month follow-up. After propensity score matching, 972 patients remained in each treatment group. Overall, 384 of 1944 (19.8%) developed PFCs within 2 years of the index date. The use of SST was associated with a 59% decreased risk of PFC development (hazard ratio [HR], 0.41; 95% CI, 0.33-0.52; P < .001) in 2 years compared with no SST use. Among those who developed PFCs, 55% fewer SST users underwent ostomy than SST nonusers. The use of immunomodulators alone, anti-TNFα alone, and combination therapy was associated with 52% (HR, 0.48; 95% CI, 0.37-0.62; P < .001), 47% (HR, 0.53; 95% CI, 0.36-0.78; P = .001), and 83% (HR, 0.17; 95% CI, 0.09-0.30; P < .001) reductions in the risk of 2-year PFC development, respectively, compared with no SST use. CONCLUSIONS AND RELEVANCE In this study, PFC development was common among young patients with CD. The use of SST was lower than expected. Compared with no SST, patients who initiated SST were 59% less likely to develop PFCs and fewer underwent ostomy. These results indicate that PFCs may be preventable and emphasize the importance of considering SST for all patients with CD.
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Affiliation(s)
- Jeremy Adler
- Division of Pediatric Gastroenterology, Department of Pediatrics, University of Michigan, Ann Arbor
- Susan B. Meister Child Health Evaluation and Research Center, University of Michigan, Ann Arbor
- Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor
| | - Chun Chieh Lin
- Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor
- Department of Neurology, University of Michigan, Ann Arbor
| | - Samir K. Gadepalli
- Susan B. Meister Child Health Evaluation and Research Center, University of Michigan, Ann Arbor
- Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor
- Division of Pediatric Surgery, Department of Surgery, University of Michigan, Ann Arbor
| | - Kevin J. Dombkowski
- Susan B. Meister Child Health Evaluation and Research Center, University of Michigan, Ann Arbor
- Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor
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Gu YB, Zhong J. Endoscopic management of stricturing Crohn's disease. J Dig Dis 2020; 21:351-354. [PMID: 32537911 DOI: 10.1111/1751-2980.12914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/10/2020] [Accepted: 06/12/2020] [Indexed: 12/11/2022]
Abstract
The natural history of Crohn's disease (CD) usually begins with primary intestinal inflammation, which progresses gradually to stricturing lesions. Stricture is a complicated, intractable but very common clinical problem in the management of CD. Difficulties remain in treating stricturing CD because of the limited efficacy of drug therapy and relapse of stricturing lesions cannot be completely avoided by surgery. Endoscopic management is a bridging therapy between drug therapy and surgical intervention, mainly including endoscopic balloon dilatation and endoscopic stricturotomy, and has been found to be effective for treating stricturing CD. Its explicit curative effect, less invasiveness and high safety performance make endoscopic management more acceptable by both the physician and patient. Although some patients require repeated endoscopic treatment and ultimately cannot avoid surgery, yet it can significantly delay the time to surgery and improve the quality of life. Physicians carrying out the endoscopic procedure need to be trained for performing this procedure. In this review we summarized the diagnosis and endoscopic treatment of stricturing CD.
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Affiliation(s)
- Yu Bei Gu
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Zhong
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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25
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Furman MS, Lee EY. Beyond Crohn Disease. Radiol Clin North Am 2020; 58:517-527. [DOI: 10.1016/j.rcl.2020.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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26
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A deep learning approach to evaluate intestinal fibrosis in magnetic resonance imaging models. Neural Comput Appl 2020. [DOI: 10.1007/s00521-020-04838-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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27
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Guglielmo FF, Anupindi SA, Fletcher JG, Al-Hawary MM, Dillman JR, Grand DJ, Bruining DH, Chatterji M, Darge K, Fidler JL, Gandhi NS, Gee MS, Grajo JR, Huang C, Jaffe TA, Park SH, Rimola J, Soto JA, Taouli B, Taylor SA, Baker ME. Small Bowel Crohn Disease at CT and MR Enterography: Imaging Atlas and Glossary of Terms. Radiographics 2020; 40:354-375. [DOI: 10.1148/rg.2020190091] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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28
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Guimarães LS, Greer MLC, Dillman JR, Fletcher JG. Magnetic Resonance in Crohn’s Disease. Magn Reson Imaging Clin N Am 2020; 28:31-44. [DOI: 10.1016/j.mric.2019.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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29
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Texture Analysis of Magnetic Resonance Enterography Contrast Enhancement Can Detect Fibrosis in Crohn Disease Strictures. J Pediatr Gastroenterol Nutr 2019; 69:533-538. [PMID: 31365485 DOI: 10.1097/mpg.0000000000002454] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The aim of the study was to investigate if texture analysis of contrast-enhanced magnetic resonance enterography (MRE) images can determine Crohn disease (CD) stricture histologic type. MATERIALS AND METHODS A radiology report database query identified 25 pediatric patients with established CD who underwent MRE followed by bowel resection within 30 days. MRE images were reviewed to identify strictures on enteric phase T1-weighted fat-suppressed images, that were matched with sites of histologic sectioning. Regions of interest were drawn over the bowel wall and texture analysis was performed using TexRAD software (Cambridge, UK), with skewness, mean, entropy and standard deviation parameters assessed. A pathologist reviewed all stricture histology specimens to assess for active mucosal inflammation and mural fibrosis. Multivariate logistic regression and analysis of variance were performed to identify texture features associated with stricture fibrosis. RESULTS Sixty-four bowel segments from 25 patients (mean age 16 ± 2 years) with imaging-histologic correlation were included. Of note, all strictures included had undergone surgical resection with MRE imaging available within 30 days. The histologic distribution of these bowel segments included 9 segments that showed active inflammation without fibrosis, 23 segments that showed only fibrosis, and 32 mixed segments with concomitant active inflammation and fibrosis. Bivariate regression analysis demonstrated that skewness, standard deviation, entropy, and mean texture analysis features are independently associated with stricture fibrosis. Stepwise logistic regression showed that the combination of mean, skewness, and entropy texture predicted stricture fibrosis with a goodness-of-fit value of 0.995. A combination of threshold values for these 3 texture analysis parameters was able to correctly classify 100% of the strictures in the study cohort for presence (55/55) and absence (9/9) of fibrosis. CONCLUSIONS MRE texture analysis (MRE-TA) texture features can differentiate CD stricture types and accurately detect fibrosis.
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Small bowel stricture is associated with abnormal motility on the cine MRI sequence in patients with Crohn’s disease. Eur J Radiol 2019; 118:264-270. [DOI: 10.1016/j.ejrad.2019.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 07/30/2019] [Accepted: 08/01/2019] [Indexed: 12/20/2022]
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The Role of the Radiologist in Determining Disease Severity in Inflammatory Bowel Diseases. Gastrointest Endosc Clin N Am 2019; 29:447-470. [PMID: 31078247 DOI: 10.1016/j.giec.2019.02.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Crohn's disease and ulcerative colitis are chronic inflammatory diseases that lead to progressive bowel damage including the development of stricturing and penetrating complications. Increasingly, cross-sectional imaging with computed tomography or magnetic resonance scans have emerged as leading tools to: (1) assess disease activity; (2) monitor response to therapy or disease recurrence; and (3) identify disease-related complications. Several validated radiological scoring systems have been developed to quantify cross-sectional and longitudinal inflammatory burden in these diseases and to monitor response to treatment. Bowel ultrasound is also a simple and inexpensive tool but is operator dependent in its performance.
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Mean Corpuscular Volume to White Blood Cell Ratio for Thiopurine Monitoring in Pediatric Inflammatory Bowel Disease. J Pediatr Gastroenterol Nutr 2019; 69:88-94. [PMID: 30747813 DOI: 10.1097/mpg.0000000000002296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
OBJECTIVES Thiopurines, commonly used to treat inflammatory bowel disease, cause lymphopenia and red blood cell macrocytosis, requiring therapeutic monitoring. Mean corpuscular volume/white blood cell (MCV/WBC) ratio has been proposed as a surrogate for therapeutic monitoring. Our aim was to investigate MCV/WBC ratio for assessing clinical response to thiopurines among pediatric patients with inflammatory bowel disease. METHODS We performed a retrospective cross-sectional study at a tertiary care center using laboratory results and standardized physician global assessments (PGA) among pediatric patients taking thiopurines. Erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), fecal calprotectin, and 6-thioguanine nucleotides were assessed when available. The primary outcome was association between MCV/WBC ratio and clinical remission assessed by ESR, CRP, calprotectin, or PGA. We also used a composite outcome requiring all available data to be normal. Analyses were limited to 1 occurrence per patient, >60 days after starting thiopurine, and comparators were required to be within 14 days of one another. RESULTS A total of 471 patients met inclusion criteria. MCV/WBC ratio poorly predicted quiescent disease as defined by PGA (area under receiver operating characteristic curve [AuROC] 0.55, 95% confidence interval [CI] 0.43-0.66). MCV/WBC ratio better predicted quiescent disease defined as normal CRP (AuROC 0.64, 95% CI 0.58-0.70) or normal ESR (AuROC 0.59, 95% CI 0.52-0.66). When the composite outcome measure was used, MCV/WBC ratio had an AuROC of 0.65 (95% CI 0.59-0.70), indicating it is reasonably accurate in discriminating between clinical remission and active disease. CONCLUSIONS MCV/WBC ratio is a noninferior, easy, and low-cost alternative to thiopurine metabolite monitoring.
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Abstract
Acute abdominopelvic pain, a common symptom in emergency department patients, is challenging given the spectrum of differential diagnoses encompassing multiple organ systems, ranging from benign self-limiting to life-threatening and emergent. Diagnostic imaging is critical given its high accuracy and management guidance. A contrast-enhanced computed tomography (CT) scan is preferred given its widespread availability and speed of acquisition. MR imaging may be appropriate, usually performed for specific indications with tailored protocols. It is accurate for diagnosis and may be an alternative to CT. This article discusses the advantages and disadvantages, protocols, and appearances of MR imaging of common diagnoses.
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Affiliation(s)
- Jennifer W Uyeda
- Department of Radiology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA.
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MR Imaging Evaluation of Inflammatory Bowel Disease in Children:: Where Are We Now in 2019. Magn Reson Imaging Clin N Am 2019; 27:291-300. [PMID: 30910099 DOI: 10.1016/j.mric.2019.01.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Inflammatory bowel disease (IBD) is an important cause of abdominal pain in the pediatric population. Magnetic resonance enterography (MRE) plays a crucial role in assessment of disease severity, location, extent of disease, and assessment for associated complications. As MR imaging technology has advanced, new techniques have been brought into clinical practice. Recent research has expanded our understanding of how the inflammatory processes in IBD manifest on MRE and improved radiology's ability to accurately assess the disease and its associated complications. This article discusses up-to-date MR imaging techniques and imaging manifestations of IBD in pediatric patients.
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IVIM with fractional perfusion as a novel biomarker for detecting and grading intestinal fibrosis in Crohn’s disease. Eur Radiol 2018; 29:3069-3078. [DOI: 10.1007/s00330-018-5848-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 10/03/2018] [Accepted: 10/22/2018] [Indexed: 01/18/2023]
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Mitselos IV, Katsanos K, Tsianos EV, Eliakim R, Christodoulou D. Clinical Use of Patency Capsule: A Comprehensive Review of the Literature. Inflamm Bowel Dis 2018; 24:2339-2347. [PMID: 29718225 DOI: 10.1093/ibd/izy152] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Indexed: 12/13/2022]
Abstract
The patency capsule is a radiopaque, dissolvable diagnostic tool, similar in shape and size to small bowel capsule endoscopes. It was developed to offer a simple, safe, efficient, and accurate evaluation of small bowel functional patency. Although unable to provide direct visual information regarding the presence and location of strictures, masses, or luminal narrowing of the small bowel, a successful patency test minimizes the risk of retention and allows the safe administration of a capsule endoscope. However, its use entails a low risk of potentially harmful adverse events, which in their majority are indolent and resolve spontaneously. Abdominal pain and symptomatic retention are accountable for the majority of reported adverse events, whereas a limited number of reports describe life-threatening complications, namely intestinal obstruction, perforation, and intestinal ischemia. Computed tomography is the modality of choice for the identification of the exact position of an impacted patency capsule, whilst the use of plain abdominal radiographs should be avoided for the evaluation of the patency capsule position, as they provide false information. Hereby, we present a comprehensive review of the available literature regarding the characteristics, indications, clinical use, effectiveness, and adverse events of the patency capsule.10.1093/ibd/izy152_video1izy152.video15777752348001.
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Affiliation(s)
- Ioannis V Mitselos
- Department of Gastroenterology, School of Health Sciences, University Hospital of Ioannina, Faculty of Medicine, University of Ioannina, Ioannina, Greece
| | - Konstantinos Katsanos
- Department of Gastroenterology, School of Health Sciences, University Hospital of Ioannina, Faculty of Medicine, University of Ioannina, Ioannina, Greece
| | - Epameinondas V Tsianos
- Department of Gastroenterology, School of Health Sciences, University Hospital of Ioannina, Faculty of Medicine, University of Ioannina, Ioannina, Greece
| | - Rami Eliakim
- †Department of Gastroenterology, Sheba Medical Center & Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Dimitrios Christodoulou
- Department of Gastroenterology, School of Health Sciences, University Hospital of Ioannina, Faculty of Medicine, University of Ioannina, Ioannina, Greece
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Gauci J, Sammut L, Sciberras M, Piscopo N, Micallef K, Cortis K, Ellul P. Small bowel imaging in Crohn's disease patients. Ann Gastroenterol 2018; 31:395-405. [PMID: 29991884 PMCID: PMC6033758 DOI: 10.20524/aog.2018.0268] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 02/27/2018] [Indexed: 12/15/2022] Open
Abstract
Crohn’s disease (CD) is a lifelong, chronic inflammatory bowel disorder. The small bowel (SB) is involved to varying extents, and the clinical course may vary from an inflammatory type to a more complicated one with stricture, fistula, and abscess formation. Esophagogastroduodenoscopy and ileocolonoscopy with biopsies are the conventional endoscopic techniques that usually establish the diagnosis. On the other hand, CD may affect SB segments that cannot be reached through these procedures. Video capsule endoscopy and enteroscopy are additional endoscopic techniques that may allow further SB evaluation in such circumstances. Computed tomographic enterography, magnetic resonance enterography, and ultrasonography are radiologic techniques that serve as a crucial adjunct to endoscopic assessment. They enable the assessment of parts of the bowel that may be difficult to reach with conventional endoscopy; this allows for the detection of active inflammation, penetrating or stricturing disease, and the appreciation of extraintestinal complications. Both endoscopic and radiologic modalities play a role in establishing the diagnosis of CD, as well as determining the disease extent, activity and response to therapy. This review is intended to evaluate these modalities in terms of specificity, sensitivity, potential side-effects, and limiting factors. This should serve as a guide to the clinician for establishing the most appropriate and reliable test within a particular clinical context.
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Affiliation(s)
- James Gauci
- Division of Gastroenterology (James Gauci, Martina Sciberras, Naomi Piscopo, Pierre Ellul), Mater Dei Hospital, Malta
| | - Lara Sammut
- Department of Medical Imaging (Lara Sammut, Kristian Micallef, Kelvin Cortis), Mater Dei Hospital, Malta
| | - Martina Sciberras
- Division of Gastroenterology (James Gauci, Martina Sciberras, Naomi Piscopo, Pierre Ellul), Mater Dei Hospital, Malta
| | - Naomi Piscopo
- Division of Gastroenterology (James Gauci, Martina Sciberras, Naomi Piscopo, Pierre Ellul), Mater Dei Hospital, Malta
| | - Kristian Micallef
- Department of Medical Imaging (Lara Sammut, Kristian Micallef, Kelvin Cortis), Mater Dei Hospital, Malta
| | - Kelvin Cortis
- Department of Medical Imaging (Lara Sammut, Kristian Micallef, Kelvin Cortis), Mater Dei Hospital, Malta
| | - Pierre Ellul
- Division of Gastroenterology (James Gauci, Martina Sciberras, Naomi Piscopo, Pierre Ellul), Mater Dei Hospital, Malta
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Paediatric magnetic resonance enterography in inflammatory bowel disease. Eur J Radiol 2018; 102:129-137. [PMID: 29685526 DOI: 10.1016/j.ejrad.2018.02.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 02/24/2018] [Indexed: 12/25/2022]
Abstract
Paediatric magnetic resonance enterography (MRE) has been increasingly employed in the evaluation of inflammatory bowel disease (IBD) in the past decade. This is in parallel with a global rise in paediatric-onset IBD, greater recognition of the hazards of ionizing radiation, especially in children, and improved treatment options. MRE is now the reference standard for assessing the small bowel in suspected or proven paediatric IBD, and is central to the diagnosis of Crohn's disease (CD), helping distinguish it from ulcerative colitis. This review will discuss the standard and advanced techniques applied in paediatric MRE to define the presence, extent and severity of intestinal IBD, and increasingly colonic and perianal disease. Its role in demonstrating enteric and extra-enteric disease and characterizing this as active inflammation and/or damage will be explored, including the utility of cinematic, diffusion weighted and magnetization transfer imaging. While MRE is increasingly used to guide medical versus surgical management, considerable overlap exists between conventional MRE imaging features for inflammation and damage, as reflected pathologically, which is driving ongoing research. Paediatric MRE-based scoring systems for CD are currently under development that will further consolidate the role of MRE in paediatric IBD, reinforced by implementation of standardized analysis, interpretation and reporting. As an imaging biomarker, MRE performs well when referenced against endoscopy and clinical biomarkers for evidence of mucosal healing, the current treatment goal. MRE is anticipated to have even greater impact as an imaging biomarker through demonstration of transmural disease and healing, not amenable to endoscopic assessment.
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Lanier MH, Shetty AS, Salter A, Khanna G. Evaluation of noncontrast MR enterography for pediatric inflammatory bowel disease assessment. J Magn Reson Imaging 2018; 48:341-348. [PMID: 29504171 DOI: 10.1002/jmri.25990] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 02/07/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Gadolinium deposition in normal tissues is being increasingly recognized. Children with inflammatory bowel disease (IBD) undergo frequent imaging with contrast-enhanced MR enterography (MRE). PURPOSE To determine the impact of intravenous (IV) gadolinium in assessment of pediatric IBD by MRE. STUDY TYPE Retrospective, case series. POPULATION Radiology information system was searched to identify all children who underwent MRE and endoscopy within 30 days in 2016. FIELD STRENGTH/SEQUENCE 1.5T and 3T. ASSESSMENT Imaging studies were evaluated for bowel inflammation interpreted by two blinded radiologists in two sessions 6 weeks apart (session 1 pre-MRE; session 2 pre/postcontrast-MRE). Endoscopic histology was the reference standard. STATISTICAL TESTS A logistic regression model was evaluated using receiver operating characteristics curves and expressed by c-statistics. Agreement between readers was evaluated using Cohen's or weighted kappa statistic, as appropriate. Two-sided P < 0.05 was considered statistically significant. Descriptive statistics were used for assessment of IBD complications. RESULTS In all, 52 children (46% female), mean age 13.2 (SD 3.42) years formed the study cohort. 77% (40/52) had inflammation on endoscopic biopsy. Pre/post-MRE showed no significant increase in the c-statistic compared to pre-MRE for assessment of small bowel (Reader 1 P = 0.56, Reader 2 P = 1.00) or large bowel inflammation (Reader 1 P = 0.42, Reader 2 P = 1.00)). Intravenous contrast showed no improvement in interobserver agreement for assessment of inflammation in small (kappa 0.92 pre-MRE, 0.88 pre/post-MRE) or large bowel (kappa 0.83 pre-MRE, 0.73 pre/post-MRE). IV contrast had no meaningful impact on interobserver agreement for length of small bowel inflamed (intraclass correlation coefficient 0.90 pre-MRE, 0.95 pre/post-MRE). Assessment of IBD complications was improved with IV contrast, with 3/5 cases with perianal penetrating disease not recognized on pre-MRE. DATA CONCLUSION Routine administration of IV gadolinium has no impact on the assessment of bowel inflammation. However, there is potential for missing perianal complications using a noncontrast MRE protocol without dedicated pelvic imaging. LEVEL OF EVIDENCE 3 Technical Efficacy: Stage 2 J. MAGN. RESON. IMAGING 2018;48:341-348.
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Affiliation(s)
- Michael Hunter Lanier
- Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Anup S Shetty
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Amber Salter
- Division of Biostatistics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Geetika Khanna
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
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Bruining DH, Zimmermann EM, Loftus EV, Sandborn WJ, Sauer CG, Strong SA. Consensus Recommendations for Evaluation, Interpretation, and Utilization of Computed Tomography and Magnetic Resonance Enterography in Patients With Small Bowel Crohn's Disease. Gastroenterology 2018; 154:1172-1194. [PMID: 29329905 DOI: 10.1053/j.gastro.2017.11.274] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Computed tomography and magnetic resonance enterography have become routine small bowel imaging tests to evaluate patients with established or suspected Crohn's disease, but the interpretation and use of these imaging modalities can vary widely. A shared understanding of imaging findings, nomenclature, and utilization will improve the utility of these imaging techniques to guide treatment options, as well as assess for treatment response and complications. Representatives from the Society of Abdominal Radiology Crohn's Disease-Focused Panel, the Society of Pediatric Radiology, the American Gastroenterological Association, and other experts, systematically evaluated evidence for imaging findings associated with small bowel Crohn's disease enteric inflammation and established recommendations for the evaluation, interpretation, and use of computed tomography and magnetic resonance enterography in small bowel Crohn's disease. This work makes recommendations for imaging findings that indicate small bowel Crohn's disease, how inflammatory small bowel Crohn's disease and its complications should be described, elucidates potential extra-enteric findings that may be seen at imaging, and recommends that cross-sectional enterography should be performed at diagnosis of Crohn's disease and considered for small bowel Crohn's disease monitoring paradigms. A useful morphologic construct describing how imaging findings evolve with disease progression and response is described, and standard impressions for radiologic reports that convey meaningful information to gastroenterologists and surgeons are presented.
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Affiliation(s)
- David H Bruining
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Ellen M Zimmermann
- Department of Gastroenterology, University of Florida, Gainesville, Florida
| | - Edward V Loftus
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - William J Sandborn
- Division of Gastroenterology, University of California San Diego, San Diego, California
| | - Cary G Sauer
- Division of Pediatric Gastroenterology, Emory University, Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Scott A Strong
- Division of GI Surgery, Northwestern Medicine, Chicago, Illinois
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Li XH, Mao R, Huang SY, Sun CH, Cao QH, Fang ZN, Zhang ZW, Huang L, Lin JJ, Chen YJ, Rimola J, Rieder F, Chen MH, Feng ST, Li ZP. Characterization of Degree of Intestinal Fibrosis in Patients with Crohn Disease by Using Magnetization Transfer MR Imaging. Radiology 2018; 287:494-503. [PMID: 29357272 DOI: 10.1148/radiol.2017171221] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Purpose To evaluate the role of magnetization transfer (MT) magnetic resonance (MR) imaging for the characterization of intestinal fibrosis compared with contrast material-enhanced and diffusion-weighted MR imaging and its capability for differentiating fibrotic from inflammatory strictures in humans with Crohn disease (CD) by using surgical histopathologic analysis as the reference standard. Materials and Methods Institutional review board approval and informed consent were obtained for this prospective study. Abdominal MT imaging, contrast-enhanced imaging, and diffusion-weighted imaging of 31 consecutive patients with CD were analyzed before elective surgery. The bowel wall MT ratio normalized to skeletal muscle, the apparent diffusion coefficient (ADC), and the percentage of enhancement gain were calculated; region-by-region correlations with the surgical specimen were performed to determine the histologic degree of fibrosis and inflammation. The performance of MT imaging was validated in five new patients. One-way analysis of variance test, Spearman rank correlation, and receiver operating characteristic curve were used for statistical analysis. Results Normalized MT ratios strongly correlated with fibrosis scores (r = 0.769; P = .000) but did not correlate with inflammation scores (r = -0.034; P = .740). Significant differences (F = 49.002; P = .000) in normalized MT ratios were found among nonfibrotic, mildly, moderately, and severely fibrotic walls. The normalized MT ratios of mixed fibrotic and inflammatory bowel walls were significantly higher than those of bowel walls with only inflammation present (t = -8.52; P = .000). A high accuracy of normalized MT ratios was shown with an area under the receiver operating characteristic curve (AUC) of 0.919 (P = .000) for differentiating moderately to severely fibrotic bowel walls from nonfibrotic and mildly fibrotic bowel walls, followed by ADC (AUC, 0.747; P = .001) and the percentage of enhancement gain (AUC, 0.592; P = .209). The sensitivity, specificity, and AUC of MT imaging for diagnosing moderate to severe fibrosis in the validation data set were 80% (12 of 15), 100% (three of three), and 0.9 (P = .033), respectively. Conclusion MT imaging outperforms ADC and contrast-enhanced imaging in detecting and distinguishing varying degrees of bowel fibrosis with or without coexisting inflammation. MT imaging could potentially be used as a method to differentiate fibrotic from inflammatory intestinal strictures in patients with CD. © RSNA, 2018 Online supplemental material is available for this article.
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Affiliation(s)
- Xue-Hua Li
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Ren Mao
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Si-Yun Huang
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Can-Hui Sun
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Qing-Hua Cao
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Zhuang-Nian Fang
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Zhong-Wei Zhang
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Li Huang
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Jin-Jiang Lin
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Yu-Jun Chen
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Jordi Rimola
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Florian Rieder
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Min-Hu Chen
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Shi-Ting Feng
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
| | - Zi-Ping Li
- From the Departments of Radiology (X.H.L., S.Y.H., C.H.S., Z.N.F., L.H., J.J.L., S.T.F., Z.P.L.), Gastroenterology (R.M., M.H.C.), Pathology (Q.H.C.), and Ultrasound (Y.J.C.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan II Road, Guangzhou 510080, People's Republic of China; Department of Biomedical Engineering, Cancer Biology and Radiology, Wake Forest School of Medicine, Winston-Salem, NC (Z.W.Z.); Department of Radiology, Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain (J.R.); and Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio (F.R.)
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Bruining DH, Zimmermann EM, Loftus EV, Sandborn WJ, Sauer CG, Strong SA. Consensus Recommendations for Evaluation, Interpretation, and Utilization of Computed Tomography and Magnetic Resonance Enterography in Patients With Small Bowel Crohn's Disease. Radiology 2018; 286:776-799. [PMID: 29319414 DOI: 10.1148/radiol.2018171737] [Citation(s) in RCA: 162] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Computed tomography and magnetic resonance enterography have become routine small bowel imaging tests to evaluate patients with established or suspected Crohn's disease, but the interpretation and use of these imaging modalities can vary widely. A shared understanding of imaging findings, nomenclature, and utilization will improve the utility of these imaging techniques to guide treatment options, as well as assess for treatment response and complications. Representatives from the Society of Abdominal Radiology Crohn's Disease-Focused Panel, the Society of Pediatric Radiology, the American Gastroenterological Association, and other experts, systematically evaluated evidence for imaging findings associated with small bowel Crohn's disease enteric inflammation and established recommendations for the evaluation, interpretation, and use of computed tomography and magnetic resonance enterography in small bowel Crohn's disease. This work makes recommendations for imaging findings that indicate small bowel Crohn's disease, how inflammatory small bowel Crohn's disease and its complications should be described, elucidates potential extra-enteric findings that may be seen at imaging, and recommends that cross-sectional enterography should be performed at diagnosis of Crohn's disease and considered for small bowel Crohn's disease monitoring paradigms. A useful morphologic construct describing how imaging findings evolve with disease progression and response is described, and standard impressions for radiologic reports that convey meaningful information to gastroenterologists and surgeons are presented. ©2018, RSNA, AGA Institute, and Society of Abdominal Radiology This article is being published jointly in Radiology and Gastroenterology.
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Affiliation(s)
- David H Bruining
- From the Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minn (D.H.B., E.V.L); Department of Gastroenterology, University of Florida, Gainesville, Fla (E.M.Z.); Division of Gastroenterology, University of California San Diego, San Diego, Calif (W.J.S); Division of Pediatric Gastroenterology, Emory University, Children's Healthcare of Atlanta, Ga (C.G.S); and Division of GI Surgery, Northwestern Medicine, Chicago, Ill (S.A.S)
| | - Ellen M Zimmermann
- From the Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minn (D.H.B., E.V.L); Department of Gastroenterology, University of Florida, Gainesville, Fla (E.M.Z.); Division of Gastroenterology, University of California San Diego, San Diego, Calif (W.J.S); Division of Pediatric Gastroenterology, Emory University, Children's Healthcare of Atlanta, Ga (C.G.S); and Division of GI Surgery, Northwestern Medicine, Chicago, Ill (S.A.S)
| | - Edward V Loftus
- From the Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minn (D.H.B., E.V.L); Department of Gastroenterology, University of Florida, Gainesville, Fla (E.M.Z.); Division of Gastroenterology, University of California San Diego, San Diego, Calif (W.J.S); Division of Pediatric Gastroenterology, Emory University, Children's Healthcare of Atlanta, Ga (C.G.S); and Division of GI Surgery, Northwestern Medicine, Chicago, Ill (S.A.S)
| | - William J Sandborn
- From the Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minn (D.H.B., E.V.L); Department of Gastroenterology, University of Florida, Gainesville, Fla (E.M.Z.); Division of Gastroenterology, University of California San Diego, San Diego, Calif (W.J.S); Division of Pediatric Gastroenterology, Emory University, Children's Healthcare of Atlanta, Ga (C.G.S); and Division of GI Surgery, Northwestern Medicine, Chicago, Ill (S.A.S)
| | - Cary G Sauer
- From the Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minn (D.H.B., E.V.L); Department of Gastroenterology, University of Florida, Gainesville, Fla (E.M.Z.); Division of Gastroenterology, University of California San Diego, San Diego, Calif (W.J.S); Division of Pediatric Gastroenterology, Emory University, Children's Healthcare of Atlanta, Ga (C.G.S); and Division of GI Surgery, Northwestern Medicine, Chicago, Ill (S.A.S)
| | - Scott A Strong
- From the Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minn (D.H.B., E.V.L); Department of Gastroenterology, University of Florida, Gainesville, Fla (E.M.Z.); Division of Gastroenterology, University of California San Diego, San Diego, Calif (W.J.S); Division of Pediatric Gastroenterology, Emory University, Children's Healthcare of Atlanta, Ga (C.G.S); and Division of GI Surgery, Northwestern Medicine, Chicago, Ill (S.A.S)
| | -
- From the Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minn (D.H.B., E.V.L); Department of Gastroenterology, University of Florida, Gainesville, Fla (E.M.Z.); Division of Gastroenterology, University of California San Diego, San Diego, Calif (W.J.S); Division of Pediatric Gastroenterology, Emory University, Children's Healthcare of Atlanta, Ga (C.G.S); and Division of GI Surgery, Northwestern Medicine, Chicago, Ill (S.A.S)
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Serra C, Rizzello F, Pratico’ C, Felicani C, Fiorini E, Brugnera R, Mazzotta E, Giunchi F, Fiorentino M, D’Errico A, Morselli-Labate AM, Mastroroberto M, Campieri M, Poggioli G, Gionchetti P. Real-time elastography for the detection of fibrotic and inflammatory tissue in patients with stricturing Crohn's disease. J Ultrasound 2017; 20:273-284. [PMID: 29204231 PMCID: PMC5698189 DOI: 10.1007/s40477-017-0265-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 09/28/2017] [Indexed: 12/21/2022] Open
Abstract
PURPOSE The distinction between active inflammation and fibrosis of the bowel wall is essential for therapeutic decisions in stricturing Crohn's disease. We aimed to assess whether real-time elastography (RTE) with strain ratio measurement could be useful in differentiating fibrotic from inflamed bowel strictures and to evaluate the possible relationship between US techniques and the histology of the stenotic bowel wall. MATERIALS AND METHODS Bowel ultrasonography (including RTE, color-Doppler and CEUS examination) was prospectively evaluated in 26 patients with symptomatic stricturing Crohn's disease, before surgery. RTE was adopted to evaluate bowel stiffness: five loops of 20 RTE frames were recorded for each stenotic segment and the mean strain ratio (MSR) was obtained. Histology scoring systems both for inflammation and fibrosis were established for surgical specimens. RESULTS No significant correlation was found between MSR and fibrosis score (P = 0.877). Color-Doppler score was significantly related to gut wall and submucosal thicknesses (P = 0.006 and P = 0.032, respectively). There was no significant correlation between the number of vessels counted at histology and color-Doppler and CEUS examinations (P = 0.170 and P = 0.302, respectively). CONCLUSION MSR detection was not able to distinguish fibrotic from inflammatory tissue in our selected population. This result could be influenced by the presence of the superimposed inflammation. Larger cohort of patients, further analysis with shear wave elastography, and validated histopathology classification systems for fibrosis and inflammation are necessary to assess if intestinal fibrosis could be reliably detected on the basis of bowel elastic properties.
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Affiliation(s)
- Carla Serra
- Department of Organ Failure and Transplantation, Ultrasound Unit, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - Fernando Rizzello
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, Sant’Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy
| | - Chiara Pratico’
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, Sant’Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy
| | - Cristina Felicani
- Department of Organ Failure and Transplantation, Ultrasound Unit, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - Erica Fiorini
- Department of Organ Failure and Transplantation, Ultrasound Unit, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - Ramona Brugnera
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, Sant’Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy
| | - Elena Mazzotta
- Department of Organ Failure and Transplantation, Ultrasound Unit, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - Francesca Giunchi
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), “F. Addarii” Institute of Oncology and Transplant Pathology, Alma Mater Studiorum-University of Bologna, S. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Michelangelo Fiorentino
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), “F. Addarii” Institute of Oncology and Transplant Pathology, Alma Mater Studiorum-University of Bologna, S. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Antonietta D’Errico
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), “F. Addarii” Institute of Oncology and Transplant Pathology, Alma Mater Studiorum-University of Bologna, S. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Antonio Maria Morselli-Labate
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, Sant’Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy
| | - Marianna Mastroroberto
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, Sant’Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy
| | - Massimo Campieri
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, Sant’Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy
| | - Gilberto Poggioli
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, Sant’Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy
| | - Paolo Gionchetti
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, Sant’Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy
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Ultrasound assessment of the bowel: inflammatory bowel disease and conditions beyond. Pediatr Radiol 2017; 47:1082-1090. [PMID: 28779191 DOI: 10.1007/s00247-017-3877-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 02/22/2017] [Accepted: 04/20/2017] [Indexed: 12/15/2022]
Abstract
Ultrasound (US) is a versatile imaging study for the evaluation of the bowel in children. US imaging of the bowel can be used as the initial examination or in follow-up for many common pediatric diseases. In this article, we highlight our bowel US technique and describe how US can depict the features of a select group of bowel pathologies relevant to pediatric practice.
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There is good agreement between MR enterography and bowel ultrasound with regards to disease location and activity in paediatric inflammatory bowel disease. Clin Radiol 2017; 72:590-597. [DOI: 10.1016/j.crad.2017.02.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 02/04/2017] [Accepted: 02/07/2017] [Indexed: 12/29/2022]
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Branchi F, Caprioli F, Orlando S, Conte D, Fraquelli M. Non-invasive evaluation of intestinal disorders: The role of elastographic techniques. World J Gastroenterol 2017; 23:2832-2840. [PMID: 28522902 PMCID: PMC5413779 DOI: 10.3748/wjg.v23.i16.2832] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 01/27/2017] [Accepted: 03/30/2017] [Indexed: 02/06/2023] Open
Abstract
Over the recent years the non-invasive techniques for the evaluation of the small bowel have been playing a major role in the management of chronic intestinal diseases, such as inflammatory bowel diseases (IBD). The diagnostic performances of magnetic resonance imaging, computed tomography and ultrasound in the field of small bowel disorders, have been assessed and established for more than two decades. Newer sonographic techniques, such as strain elastography and shear wave elastography, have been put forward for the assessment of disease activity and characterization of IBD-related damage in the setting of Crohn's disease and other gastrointestinal disorders. The data from the preliminary research and clinical studies have shown promising results as regards the ability of elastographic techniques to differentiate inflammatory from fibrotic tissue. The distinction between IBD activity (inflammation) and IBD-related damage (fibrosis) is currently considered crucial for the assessment and management of patients. Moreover, all the elastographic techniques are currently being considered in the setting of other intestinal disorders (e.g., rectal tumors, appendicitis). The aim of this paper is to offer both a comprehensive narrative review of the non-invasive techniques available for the assessment of small-bowel disorders, with particular emphasis on inflammatory bowel diseases, and a summary of the current evidence on the use of elastographic techniques in this setting.
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Deepak P, Park SH, Ehman EC, Hansel SL, Fidler JL, Bruining DH, Fletcher JG. Crohn's disease diagnosis, treatment approach, and management paradigm: what the radiologist needs to know. Abdom Radiol (NY) 2017; 42:1068-1086. [PMID: 28210767 DOI: 10.1007/s00261-017-1068-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Crohn's disease is one of the major subtypes of idiopathic inflammatory bowel disease and is characterized by chronic transmural intestinal inflammation of the gastrointestinal tract anywhere from mouth to the anus, with a predilection for the small bowel. Cross-sectional imaging with computed tomography and magnetic resonance enterography plays a key role in confirming diagnosis, identifying and managing complications, assessing disease severity, and identifying response to medical therapy. This review will focus on the role of radiologists in the diagnosis and assessment of Crohn's disease. Additionally, a review of current medical therapy approaches, available medications, and side effects will be discussed. The review will also highlight key complications of medical therapy and associated diseases that should be evaluated by the radiologist with cross-sectional imaging.
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Affiliation(s)
- Parakkal Deepak
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Sang Hyoung Park
- Department of Gastroenterology, Inflammatory Bowel Disease Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Eric C Ehman
- Division of Abdominal Imaging, Mayo Clinic College of Medicine, 200 First Street, SW, Rochester, MN, 55905, USA
| | - Stephanie L Hansel
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Jeff L Fidler
- Division of Abdominal Imaging, Mayo Clinic College of Medicine, 200 First Street, SW, Rochester, MN, 55905, USA
| | - David H Bruining
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Joel G Fletcher
- Division of Abdominal Imaging, Mayo Clinic College of Medicine, 200 First Street, SW, Rochester, MN, 55905, USA.
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Dillman JR, Rubin JM, Johnson LA, Moons DS, Higgins PDR. Can Contrast-Enhanced Sonography Detect Bowel Wall Fibrosis in Mixed Inflammatory and Fibrotic Crohn Disease Lesions in an Animal Model? JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2017; 36:523-530. [PMID: 28072481 PMCID: PMC6557400 DOI: 10.7863/ultra.16.04064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 06/13/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES To determine whether contrast-enhanced sonographic quantitative perfusion parameters can detect bowel wall fibrosis in the setting of mixed inflammatory and fibrotic lesions in a Crohn disease animal model. METHODS This study was approved by the institutional Committee on the Use and Care of Animals. Multiple (range, 1-5) 2,4,6-trinitrobenzenesulfonic acid-ethanol enemas were used to create intestinal inflammatory lesions with variable fibrosis in female Lewis rats. Low-mechanical index contrast-enhanced sonography was performed 3 days after the final enema using a 0.2-mL bolus of sulfur hexafluoride microbubbles injected through a tail vein. Contrast-enhanced sonographic data were analyzed with software that converts video data into echo-power (linearized) data. Colorectal lesions were scored for histopathologic inflammation and fibrosis; bowel wall collagen was quantified by Western blotting. The Spearman correlation was used to assess associations between contrast-enhanced sonographic quantitative parameters and bowel wall collagen; the Kruskal-Wallis test was used to compare continuous results between histopathologic groups. RESULTS Thirty-one animals were included in our analysis. Animals were placed into 3 histopathologic cohorts: (1) severe bowel wall inflammation/minimal or no fibrosis (n = 11); (2) severe bowel wall inflammation/moderate fibrosis (n = 9); and (3) severe bowel wall inflammation/severe fibrosis (n = 11). Western blotting showed a significant difference in bowel wall collagen between histopathologic cohorts (P = .0001). There was no correlation between any contrast-enhanced sonographic quantitative parameter and bowel wall collagen (P > .05). There was no difference between histopathologic cohorts for any contrast-enhanced sonographic quantitative parameter (P > .05). CONCLUSIONS Contrast-enhanced sonographic quantitative perfusion parameters failed to effectively detect bowel wall fibrosis in the setting of superimposed inflammation in a Crohn disease animal model.
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Affiliation(s)
- Jonathan R Dillman
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jonathan M Rubin
- Department of Radiology, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Laura A Johnson
- Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - David S Moons
- Department of Pathology, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Peter D R Higgins
- Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
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Rosenbaum DG, Conrad MA, Biko DM, Ruchelli ED, Kelsen JR, Anupindi SA. Ultrasound and MRI predictors of surgical bowel resection in pediatric Crohn disease. Pediatr Radiol 2017; 47:55-64. [PMID: 27687769 DOI: 10.1007/s00247-016-3704-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 08/06/2016] [Accepted: 09/02/2016] [Indexed: 12/18/2022]
Abstract
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. Appearance of the terminal ileum on both modalities was compared between surgical patients and those managed with medical therapy, with the following parameters assessed: bowel wall thickness, mural stratification, vascularity, fibrofatty proliferation, abscess, fistula and stricture on bowel US; bowel wall thickness, T2 ratio, enhancement pattern, mesenteric edema, fibrofatty proliferation, abscess, fistula and stricture on MRE. A two-sided t-test was used to compare means, a Mann-Whitney U analysis was used for non-parametric parameter scores, and a chi-square or two-sided Fisher exact test compared categorical variables. Imaging findings in surgical patients were correlated with location-matched histopathological scores of inflammation and fibrosis using a scoring system adapted from the Simple Endoscopic Score for Crohn Disease, and a Spearman rank correlation coefficient was used to compare inflammation and fibrosis on histopathology. RESULTS Twenty-two surgical patients (mean age: 16.5 years; male/female: 13/9) and 20 nonsurgical patients (mean age: 14.8; M/F: 8/12) were included in the final analysis. On US, the surgical group demonstrated significantly increased mean bowel wall thickness (6.1 mm vs. 4.7 mm for the nonsurgical group; P = 0.01), loss of mural stratification (odds ratio [OR] = 6.3; 95% confidence interval [CI]: 1.4-28.4; P = 0.02) and increased fibrofatty proliferation (P = 0.04). On MRE, the surgical group showed increased mean bowel wall thickness (9.1 mm vs. 7.2 mm for the nonsurgical group; P = 0.02), increased mean T2 ratio (4.6 vs. 3.6 for the nonsurgical group; P = 0.03), different enhancement patterns (P = 0.03), increased mesenteric edema (P = 0.001) and increased stricture formation (OR = 8.2; 95% CI: 1.8-36.4; P = 0.005). Nineteen of 22 ileocecectomy specimens showed severe inflammation and 21/22 showed severe fibrosis, with significant correlation between inflammation and fibrosis scores (ρ = 0.55; P = 0.008); however, correlation with imaging findings was limited by the uniformity of findings on histopathology. CONCLUSION Children with terminal ileal Crohn disease requiring surgical bowel resection demonstrate more severe manifestations of imaging features traditionally associated with both active inflammation and chronic fibrosis than those managed medically on US and MRE, findings that are corroborated by histopathology. These features may potentially serve as imaging biomarkers indicating the necessity for surgical intervention.
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Affiliation(s)
- Daniel G Rosenbaum
- Division of Pediatric Radiology, NewYork-Presbyterian Hospital/Weill Cornell Medicine, 525 E. 68th St., New York, NY, 10065, USA.
| | - Maire A Conrad
- Division of Gastroenterology, Hepatology and Nutrition, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - David M Biko
- Department of Radiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Eduardo D Ruchelli
- Division of Anatomic Pathology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Judith R Kelsen
- Division of Gastroenterology, Hepatology and Nutrition, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Sudha A Anupindi
- Department of Radiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
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50
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Giannetti A, Biscontri M, Matergi M, Stumpo M, Minacci C. Feasibility of CEUS and strain elastography in one case of ileum Crohn stricture and literature review. J Ultrasound 2016; 19:231-7. [PMID: 27635167 DOI: 10.1007/s40477-016-0212-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 05/12/2016] [Indexed: 12/12/2022] Open
Abstract
Contrast-enhanced ultrasonography (CEUS) and strain elastography (SE) are diagnostic imaging methods, which are still not routinely used in the clinical management of inflammatory bowel diseases. However, there are studies in the literature reporting on the use of both CEUS and SE in patients with bowel obstruction due to Crohn's disease, documenting the usefulness of these two methods in the differentiation between inflammation and fibrosis affecting the bowel wall. The aim of this case report is to evaluate the usefulness of CEUS and SE performed in a patient with Crohn's disease, who was admitted to hospital with bowel obstruction due to terminal ileal stricture and submitted to ileocecal resection. CEUS and SE identified and to some extent also characterized the inflammatory and fibrotic processes affecting the bowel wall. Macroscopic and microscopic examinations of the surgical specimen confirmed the presence of inflammatory phenomena (exudates, ulcers, and fistulas) and fibrosis as suggested by ultrasound (US) imaging methods.
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Affiliation(s)
- Andrea Giannetti
- Gastroenterology Unit, Misericordia Hospital, Via Senese 169, 58100 Grosseto, Italy
| | - Marco Biscontri
- Gastroenterology Unit, Misericordia Hospital, Via Senese 169, 58100 Grosseto, Italy
| | - Marco Matergi
- Gastroenterology Unit, Misericordia Hospital, Via Senese 169, 58100 Grosseto, Italy
| | - Michela Stumpo
- Pathology Department, Misericordia Hospital, Via Senese 169, 58100 Grosseto, Italy
| | - Chiara Minacci
- Pathology Department, Misericordia Hospital, Via Senese 169, 58100 Grosseto, Italy
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