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01-11-2012 | Gastrointestinal

Quantified terminal ileal motility during MR enterography as a potential biomarker of Crohn’s disease activity: a preliminary study

Published in: European Radiology | Issue 11/2012

Abstract

Objective

To compare quantified terminal ileal (TI) motility during MR enterography (MRE) with histopathological severity of acute inflammation in Crohn’s disease.

Methods

A total of 28 Crohn’s patients underwent MRE and endoscopic TI biopsy. Axial and coronal TrueFISP, HASTE and post-gadolinium VIBE images were supplemented by multiple coronal TrueFISP cine motility sequences through the small bowel volume. TI motility index (MI) was quantified using validated software; an acute inflammation score (eAIS; 0–6) was assigned to the biopsy. Two observers qualitatively scored mural thickness, T2 signal, contrast enhancement and perimural oedema (0–3) to produce an activity score (aMRIs) based on anatomical MRI. The association among the MI, eAIS and aMRIs was tested using Spearman’s rank correlation. Wilcoxon rank sum test compared motility in subjects with and without histopathological inflammation.

Results

Mean MI and mean eAIS were 0.27 (range 0.06–0.55) and 1.5 (range 0–5), respectively. There was a significant difference in MI between non-inflamed (mean 0.37, range 0.13–0.55) and inflamed (mean 0.19, range 0.06–0.44) TI, P = 0.002, and a significant negative correlation between MI and both eAIS (Rho = −0.52, P = 0.005) and aMRIs (R = −0.7, P < 0.001).

Conclusion

Quantified TI motility negatively correlates with histopathological measures of disease activity and existing anatomical MRI activity biomarkers.

Key Points

• Magnetic resonance imaging is increasingly used to assess Crohn’s disease.

• MRI measurements can provide a quantitative assessment of small bowel motility.

• MR enterography can grade Crohn’s disease.

• Small bowel motility can be used as a marker of inflammatory activity.

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Title: Quantified terminal ileal motility during MR enterography as a potential biomarker of Crohn’s disease activity: a preliminary study
Publication date: 01-11-2012
Published in: European Radiology / Issue 11/2012
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-012-2514-2

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Quantified terminal ileal motility during MR enterography as a potential biomarker of Crohn’s disease activity: a preliminary study

Abstract

Objective

Methods

Results

Conclusion

Key Points

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objective

Methods

Results

Conclusion

Key Points

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