An accurate model of the geometry of the right ventricle would be part
icularly useful for volume determination by imaging techniques, as wel
l as for mechanical modelling. In this study, a new mathematical model
for the right ventricle geometry based on its crescentic cross-sectio
nal shape is proposed and used to calculate its volume in imaged ex-vi
vo casts. An excellent correlation (r = 0.97) was found between volume
as derived from the model and actual volume measured by water displac
ement.