抄録
It is known that elderly people's pneumonia caused by swallowing disorder contains high danger of death. However, there is no medical instrument to detect the aspiration. Here, we applied 2D X-ray video fluorography using some care foods to reconstruct 3D geometries of the food bolus. From these geometries, the stress in the bolus was analyzed using a software LS-DYNA. Reasonable swallowing pressure was calculated from the reconstructed bolus model. The maximum swallowing pressure for soft and hard jellies was higher than that for water.
