Evidence map›Paper›PMID 30353957›Full record

ArticleJournal of magnetic resonance imaging : JMRI2019

Curved planar reformatting and convolutional neural network-based segmentation of the small bowel for visualization and quantitative assessment of pediatric Crohn's disease from MRI.

Yechiel Lamash, Sila Kurugol, Moti Freiman, Jeannette M Perez-Rossello, Michael J Callahan, Athos Bousvaros, Simon K Warfield

Open access · greenAbstract read
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Artificial intelligence in the management of inflammatory bowel disease: What's next?World journal of gastrointestinal pharmacology and therapeutics · 2026
    Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. How Artificial Intelligence Will Transform Clinical Care, Research, and Trials for Inflammatory Bowel Disease.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2025
    Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. The Role of Radiomics in Fibrosis Crohn's Disease: A Review.Diagnostics (Basel, Switzerland) · 2023
    Review
  18. Article
  19. Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Yechiel LamashComputational Radiology Laboratory, Department of Radiology, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA.ORCID 0000-0003-2619-597X
Sila KurugolComputational Radiology Laboratory, Department of Radiology, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA.
Moti FreimanComputational Radiology Laboratory, Department of Radiology, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA.
Jeannette M Perez-RosselloDepartment of Radiology, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA.
Michael J CallahanDepartment of Radiology, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA.
Athos BousvarosCenter for Inflammatory Bowel Disease Treatment and Research, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA.
Simon K WarfieldComputational Radiology Laboratory, Department of Radiology, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA.
Boston Children's Hospital · US

Funding

Mouse Neurodevelopmental Behavior CoreU54HD090255 · NICHD · BOSTON CHILDREN'S HOSPITAL · PI POMEROY, SCOTT LOREN · 2016 to 2020
$5.2M
Improved Motion Robust MRI of ChildrenR01EB019483 · NIBIB · BOSTON CHILDREN'S HOSPITAL · PI WARFIELD, SIMON K · 2015 to 2024
$3.9M
MRI Biomarkers of Patients with Tuberous Sclerosis Complex and AutismR01NS079788 · NINDS · BOSTON CHILDREN'S HOSPITAL · PI WARFIELD, SIMON K · 2013 to 2017
$3.6M
Prospective/Retrospective Motion Correction System for Motion Robust Pediatric MRIR44MH086984 · NIMH · ROBIN MEDICAL, INC. · PI NEVO, EREZ, WARFIELD, SIMON K · 2016 to 2018
$2.4M
Novel MRI Imaging Tools and Software for Assessing Pediatric Crohn's DiseaseR01DK100404 · NIDDK · BOSTON CHILDREN'S HOSPITAL · PI WARFIELD, SIMON K · 2014 to 2018
$1.9M
NIBIB NIH HHS R01 EB019483NICHD NIH HHS U54 HD090255NIDDK NIH HHS R01 DK100404NIMH NIH HHS R44 MH086984NINDS NIH HHS R01 NS079788
6 · The paper itself

Abstract

backgroundContrast-enhanced MRI of the small bowel is an effective imaging sequence for the detection and characterization of disease burden in pediatric Crohn's disease (CD). However, visualization and quantification of disease burden requires scrolling back and forth through 3D images to follow the anatomy of the bowel, and it can be difficult to fully appreciate the extent of disease. PURPOSE: To develop and evaluate a method that offers better visualization and quantitative assessment of CD from MRI. STUDY TYPE: Retrospective. POPULATION: Twenty-three pediatric patients with CD. FIELD STRENGTH/SEQUENCE: 1.5T MRI system and T ASSESSMENT: The convolutional neural network (CNN) segmentation of the bowel's lumen, wall, and background was compared with manual boundary delineation. We assessed the reproducibility and the capability of the extracted markers to differentiate between different levels of disease defined after a consensus review by two experienced radiologists. STATISTICAL TESTS: The segmentation algorithm was assessed using the Dice similarity coefficient (DSC) and boundary distances between the CNN and manual boundary delineations. The capability of the extracted markers to differentiate between different disease levels was determined using a t-test. The reproducibility of the extracted markers was assessed using the mean relative difference (MRD), Pearson correlation, and Bland-Altman analysis.

resultsOur CNN exhibited DSCs of 75 ± 18%, 81 ± 8%, and 97 ± 2% for the lumen, wall, and background, respectively. The extracted markers of wall thickness at the location of min radius (P = 0.0013) and the median value of relative contrast enhancement (P = 0.0033) could differentiate active and nonactive disease segments. Other extracted markers could differentiate between segments with strictures and segments without strictures (P < 0.05). The observers' agreement in measuring stricture length was >3 times superior when computed on curved planar reformatting images compared with the conventional scheme. DATA

conclusionThe results of this study show that the newly developed method is efficient for visualization and assessment of CD. LEVEL OF EVIDENCE: 4 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:1565-1576.

Indexed as

Magnetic Resonance ImagingAlgorithmsChildCrohn DiseaseDatabases, FactualHumansImage Interpretation, Computer-AssistedImage Processing, Computer-AssistedImaging, Three-DimensionalIntestine, SmallNeural Networks, ComputerObserver VariationProbabilityRadiologyReproducibility of ResultsRetrospective Studiesconvolutional neural network (CNN)Crohn's diseasecurved planar reformatting (CPR)MRI

Identifiers

PMID30353957
PMCPMC7205020
OpenAlexW2898304003

What OpenQuestion holds

Textmetadata
LicenceTDM
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.