VALIDATE-PERIANAL: An international real-world multi-centre exploratory validation of the TOpClass definition of a radiologically healed fistula in perianal fistulising Crohn's disease

Authors

• Easan Anand, Imperial College London
• Thirza J van Croonenburg, University of Amsterdam
• Sami Samaan, Washington University School of Medicine in St. Louis
• Phil Tozer, Imperial College London
• Ailsa Hart, Imperial College London
• Parakkal Deepak, Washington University School of Medicine in St. Louis
• David H Ballard, Washington University School of Medicine in St. Louis
• Jaap Stoker, University of Amsterdam
• Phillip Lung, Imperial College London

Journal

Insights into Imaging

Publication Date

4-7-2026

Volume

17

Issue

1

First Page

90

Document Type

Open Access Publication

DOI

10.1186/s13244-026-02260-1

Rights and Permissions

Anand, E., van Croonenburg, T.J., Samaan, S. et al. VALIDATE-PERIANAL: an international real-world multi-centre exploratory validation of the TOpClass definition of a radiologically healed fistula in perianal fistulising Crohn’s disease. Insights Imaging 17, 90 (2026). https://doi.org/10.1186/s13244-026-02260-1 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

Recommended Citation

Anand, Easan; van Croonenburg, Thirza J; Samaan, Sami; Tozer, Phil; Hart, Ailsa; Deepak, Parakkal; Ballard, David H; Stoker, Jaap; and Lung, Phillip, "VALIDATE-PERIANAL: An international real-world multi-centre exploratory validation of the TOpClass definition of a radiologically healed fistula in perianal fistulising Crohn's disease." Insights into Imaging. 17, 1. 90 (2026).
https://digitalcommons.wustl.edu/oa_4/6914

Department

ICTS (Institute of Clinical and Translational Sciences)

Additional Links

Supplemental material is available for this article at publisher site.