Volumetric quantification of the gastric emptying: computer-based method for generation of volumetric index from fluoroscopic images

We developed an automated software-based procedure for estimation of the vo lume variation of the stomach using videofluoroscopic analysis of the gastr ic emptying. We used radiological images with postero-anterior incidence of eight healthy volunteers and in vitro experimental tests, with different v olumes and concentrations of the contrast medium. This computational method generates an index that measures, in the three dimensions, the dynamic beh aviour of gastric emptying. Using adequate contrast concentration (barium s ulphate solution), it is possible to determine volume behaviour from densit y variations. This software can automate this computation, facilitating the amount of work, avoiding mistakes and improving reproducibility. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.