McNamara et al. describe a trial similar to the first one we supported at Odense University Hospital, where a positive iFOB-test is followed by video capsule endoscopy to avoid unnecessary colonoscopies for false positive results.
Holleran, Grainne, Ronan Leen, Colm O’Morain, and Deirdre McNamara. “Colon Capsule Endoscopy as Possible Filter Test for Colonoscopy Selection in a Screening Population with Positive Fecal Immunology.” Endoscopy 46, no. 6 (June 2014): 473–78. doi:10.1055/s-0034-1365402.