Observer agreement for small bowel ultrasound in Crohn's disease: results from the METRIC trial.

ABSTRACT:

Purpose

To prospectively evaluate interobserver agreement for small bowel ultrasound (SBUS) in newly diagnosed and relapsing Crohn's disease.

Methods

A subset of patients recruited to a prospective trial comparing the diagnostic accuracy of MR enterography and SBUS underwent a second SBUS performed by one of a pool of six practitioners, who recorded the presence, activity and location of small bowel and colonic disease. Detailed segmental mural and extra-mural observations were also scored. Interobserver variability was expressed as percentage agreement with a construct reference standard, split by patient cohort, grouping disease as present or absent. Prevalence adjusted bias adjusted kappa (PABAK), and simple percentage agreement between practitioners, irrespective of the

SUBMITTER: Bhatnagar G 

PROVIDER: S-EPMC7455580 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature