Haan, M.C. de

colonoscopy screening colonography ct colonography participant study cancer reader lesion examination colorectal colonographic colorectal cancer training ct-colonography invite participation sensitivity procedure burden screening procedure preparation bowel preparation participation rate bowel netherland lesions 6 mm detection trial result number radiology colorectal cancer screening group population ct-colonography participants level speci ficity adenomas centre colonoscopy participants ct colonographic examinations ct colonographic studies patient nding individual questionnaire ct colonography screening speci technician novice readers signi polyps amsterdam reading table difference program complication ficity consultation department information invitation method lesions 10 mm novice analysis outpatient clinic health fi rst reading times programme colonoscopy screening 10 mm 100 invitees dutch surveillance research randomised