Near-Focus NBI Classification of Villous Atrophy in Suspected Coeliac Disease: International Development and Validation

There are no agreed endoscopic signs for the diagnosis of villous atrophy(VA) in coeliac disease(CD), necessitating biopsies and for both diagnosis and exclusion. Here we evaluated the role of near focus Narrow Band Imaging(NF-NBI) for the assessment of villous architecture in suspected CD with development and further validation of a novel NF-NBI classification.