This study describes a graphic presentation of the results of a simpli
fied segmental colonic transit model. This study requires three sets o
f images on three consecutive days after intake of indium-111 resin ca
psule at each time point. The per cent of ingested activity is calcula
ted in each region of the colon and in the faeces. The program uses st
andard PC compatible graphic package, CorelDRAW (Corel Corporation). T
he report for the patients' notes consists of three schematic diagrams
of colon with regions identified and a pot representing the faecal ac
tivity. The per cent of administered activity in each region and pot i
s both printed and represented by shades of grey (white representing 0
% and black 100% activity), for each region and the pot. The distribut
ion of activity is clearly seen at each time point and the report is p
resented on single A4 size sheet of paper. Using a simplified colonic
study protocol it is possible to produce clinician friendly reports on
a single sheet of paper.