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 volume variation of the stomach using videofluoroscopic analysis of the gastric emptying. We used radiological images with postero-anterior incidence of eight healthy volunteers and in vitro experimental tests, with different volumes and concentrations of the contrast medium. This computational method generates an index that measures, in the three dimensions, the dynamic behaviour of gastric emptying. Using adequate contrast concentration (barium sulphate solution), it is possible to determine volume behaviour from density variations. This software can automate this computation, facilitating the amount of work, avoiding mistakes and improving reproducibility.
Laboratório de Motilidade Digestiva, Departamento de Anatomia, Instituto de Ciências Biomédicas, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro, RJ, 21949-590, Brazil. mcosta@anato.ufrj.br
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D000328:Adult; D005260:Female; D005471:Fluoroscopy / Q000379:methods; D005746:Gastric Emptying / Q000502:physiology*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008297:Male; D012984:Software; D013270:Stomach / Q000502:physiology*