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The Portsmouth protocol for intra-operative ultrasound of the small bowel in Crohn’s disease

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Introduction: Bowel preservation is paramount in Crohn’s disease surgery as affected patients are typically young adults at risk of having several abdominal surgical procedures during their lifetime. Intraoperative assessment of extent and location of Crohn’s disease is not standardised and is left to a mixture of surgeons ‘experience, tactile feedback, macroscopic appearance and preoperative imaging. The aim of this study was to describe the technical steps of a standardised protocol for intraoperative ultrasound assessment of the small bowel in patients undergoing surgery for ileocolonic Crohn’s Disease.

Technique: After laparoscopic mobilisation of the bowel a periumbilical incision is performed for extracorporeal division of the mesentery and the resection and anastomosis. A gastrointestinal consultant radiologist, with expertise in Crohn’s disease imaging and abdominal ultrasound performs the full intraoperative assessment of the small bowel, by applying directly on the bowel a sterile probe, prior to resection being performed by the surgeon. The bowel is assessed through the wound protector with a sterile technique and the length, location and number of segments is documented together with further quantitative assessment using the (MREnterography or ultrasound in Crohn’s disease) METRIC scoring guide.

Results: A step by step protocol for intraoperative ultrasound evaluation of the entire small bowel has been described.

Conclusions: A standardised approach to intraoperative evaluation of extent and location of Crohn’s disease is desirable. Intraoperative ultrasound may provide added value for assessment of proximal and multifocal Crohn’s disease.
Original languageEnglish
Pages (from-to)342-345
JournalColorectal Disease
Issue number3
Early online date25 Oct 2019
Publication statusPublished - 1 Mar 2020


  • Portsmouth protocol for intraoperative

    Rights statement: This is the peer reviewed version of the following article: Celentano, V. , Beable, R. , Ball, C. , Flashman, K. , Reeve, R. , Holmes, A. , Fogg, C. , Harper, M. and Higginson, A. (2019), Portsmouth protocol for intraoperative ultrasound of the small bowel in Crohn’s disease. Colorectal Dis. Accepted Author Manuscript. doi:10.1111/codi.14888, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.

    Accepted author manuscript (Post-print), 455 KB, PDF document

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