AIM:To investigate the flow and mixing at the duodenal stump after gastric resection, a computer simulation was implemented.METHODS: Using the finite element method, two different Billroth procedure cases(A and B)were...AIM:To investigate the flow and mixing at the duodenal stump after gastric resection, a computer simulation was implemented.METHODS: Using the finite element method, two different Billroth procedure cases(A and B)were modeled.Case A was defined with a shorter and almost straight duodenal section,while case B has a much longer and curved duodenal section.Velocity,pressure and food concentration distribution were determined and the numerical results were compared with experimental observations.RESULTS:The pressure distribution obtained by numerical simulation was in the range of the recorded experimental results.Case A had a more favorable pressure distribution in comparison with case B. However,case B had better performance in terms of food transport because of more continual food distribution, as well as better emptying of the duodenal section.CONCLUSION: This study offers insight into the transport process within the duodenal stump section after surgical intervention, which can be useful for future patient-specific predictions of a surgical outcome.展开更多
基金Supported by The Ministry of Science of Serbia with the grants OI144028 and TR12007
文摘AIM:To investigate the flow and mixing at the duodenal stump after gastric resection, a computer simulation was implemented.METHODS: Using the finite element method, two different Billroth procedure cases(A and B)were modeled.Case A was defined with a shorter and almost straight duodenal section,while case B has a much longer and curved duodenal section.Velocity,pressure and food concentration distribution were determined and the numerical results were compared with experimental observations.RESULTS:The pressure distribution obtained by numerical simulation was in the range of the recorded experimental results.Case A had a more favorable pressure distribution in comparison with case B. However,case B had better performance in terms of food transport because of more continual food distribution, as well as better emptying of the duodenal section.CONCLUSION: This study offers insight into the transport process within the duodenal stump section after surgical intervention, which can be useful for future patient-specific predictions of a surgical outcome.
