Pediatric Radiology

, Volume 48, Issue 6, pp 843–851 | Cite as

Detecting inflammation in inflammatory bowel disease — how does ultrasound compare to magnetic resonance enterography using standardised scoring systems?

  • Joy L. Barber
  • Alexsandra Zambrano-Perez
  • Øystein E. Olsen
  • Fevronia Kiparissi
  • Mila Baycheva
  • Daniela Knaflez
  • Neil Shah
  • Tom A. Watson
Original Article



Magnetic resonance enterography (MRE) is the current gold standard for imaging in inflammatory bowel disease, but ultrasound (US) is a potential alternative.


To determine whether US is as good as MRE for the detecting inflamed bowel, using a combined consensus score as the reference standard.

Materials and methods

We conducted a retrospective cohort study in children and adolescents <18 years with inflammatory bowel disease (IBD) at a tertiary and quaternary centre. We included children who underwent MRE and US within 4 weeks. We scored MRE using the London score and US using a score adapted from the METRIC (MR Enterography or Ultrasound in Crohn’s Disease) trial. Four gastroenterologists assessed an independent clinical consensus score. A combined consensus score using the imaging and clinical scores was agreed upon and used as the reference standard to compare MRE with US.


We included 53 children. At a whole-patient level, MRE scores were 2% higher than US scores. We used Lin coefficient to assess inter-observer variability. The repeatability of MRE scores was poor (Lin 0.6). Agreement for US scoring was substantial (Lin 0.95). There was a significant positive correlation between MRE and clinical consensus scores (Spearman’s rho = 0.598, P=0.0053) and US and clinical consensus scores (Spearman’s rho = 0.657, P=0.0016).


US detects as much clinically significant bowel disease as MRE. It is possible that MRE overestimates the presence of disease when using a scoring system. This study demonstrates the feasibility of using a clinical consensus reference standard in paediatric IBD imaging studies.


Adolescents Children Diagnostic accuracy Inflammatory bowel disease Magnetic resonance imaging Reproducibility Ultrasound 



We thank Dr. Antony Higginson, Prof. Stuart Taylor and Dr. Gauraang Bhatnagar for their permission to use the METRIC ultrasound scoring system and for their guidance when preparing the manuscript.

Compliance with ethical standards

Conflicts of interest


Supplementary material

247_2018_4084_MOESM1_ESM.docx (4.3 mb)
ESM 1 (DOCX 4377 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Joy L. Barber
    • 1
    • 2
  • Alexsandra Zambrano-Perez
    • 3
  • Øystein E. Olsen
    • 1
  • Fevronia Kiparissi
    • 3
  • Mila Baycheva
    • 3
  • Daniela Knaflez
    • 3
  • Neil Shah
    • 3
  • Tom A. Watson
    • 1
  1. 1.Department of Paediatric RadiologyGreat Ormond Street Hospital NHS Foundation TrustLondonUK
  2. 2.Department of RadiologySt. George’s Hospital NHS Foundation TrustLondonUK
  3. 3.Department of Paediatric GastroenterologyGreat Ormond Street Hospital NHS Foundation TrustLondonUK

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