Anatomical simulation analysis of pancreaticobiliary junction in occult pancreaticobiliary reflux: based on Fluent study
Objective Computational fluid dynamics software combined with finite element method was used to conduct 2D numerical simulation of pancreaticobiliary junction, and analyze the influence of biliopancreatic ampullary diaphragm, opening direction and shape of duodenal papilla on occult pancreaticobilia...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Surgery Concepts & Practice
2024-09-01
|
| Series: | Waike lilun yu shijian |
| Subjects: | |
| Online Access: | https://www.qk.sjtu.edu.cn/jscp/fileup/1007-9610/PDF/1737619565934-1111058605.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832590602920787968 |
|---|---|
| author | LÜ Beining, HOU Nianzong, XIANG Yukai, DA Xuanbo, YANG Yulong, TIAN Fuzhou |
| author_facet | LÜ Beining, HOU Nianzong, XIANG Yukai, DA Xuanbo, YANG Yulong, TIAN Fuzhou |
| author_sort | LÜ Beining, HOU Nianzong, XIANG Yukai, DA Xuanbo, YANG Yulong, TIAN Fuzhou |
| collection | DOAJ |
| description | Objective Computational fluid dynamics software combined with finite element method was used to conduct 2D numerical simulation of pancreaticobiliary junction, and analyze the influence of biliopancreatic ampullary diaphragm, opening direction and shape of duodenal papilla on occult pancreaticobiliary reflux(OPBR). Methods The data of anatomical structure of pancreaticobiliary junction were obtained from online information. Pancreaticobiliary junction was reconstructed in 2D by computational fluid dynamics Fluent 2020R2 software. Different models were drawn for the pancreaticobiliary junction according to the following parameters: biliopancreatic ampullary diaphragm (with/without), opening direction of duodenal papilla(biased to the side of bile duct/central/biased to the side of pancreatic duct). A total of 6 models were used to analyze the risk factors for OPBR. Results When the anatomical structure of the biliopancreatic duct confluence was normal, that was, the ampullary diaphragm exists, no matter how the shape of the duodenal papilla and the opening direction changed, there was no pancreaticobiliary reflux. When the common channel was >5 mm due to the absence of the ampullary diaphragm and duodenal papilla was biased to the side of bile duct, a small amount of pancreatic juice refluxed into the lower end of the bile duct. When the common channel was >5 mm due to the absence of the ampullary diaphragm and duodenal papilla open position was in the middle of the biliopancreatic duct, the velocity and flow rate of pancreatic juice entering bile duct increased, and the degree of reflux was maintained at the lower end of the bile duct. When the common channel was >5 mm due to the absence of the ampullary diaphragm and the duodenal papilla was biased to the side of pancreatic duct, the degree of pancreaticobiliary reflux was more serious, and pancreatic juice reflux was observed throughout the entire bile duct. On the basis of this reflux model, the length of common channel of biliopancreatic duct was shortened, and the opening of outflow tract was enlarged, and the phenomenon of pancreaticobiliary reflux disappeared. Conclusions Based on the Fluent study, it is found that anatomical structures such as ampullary diaphragm and duodenal papilla were closely related to the occurrence of OPBR. Pancreaticobiliary reflux can be terminated by shortening the common channel length of pancreaticobiliary junction and expanding the opening of outflow tract. |
| format | Article |
| id | doaj-art-53233fa7db544e1fb55f7b8af51f72d2 |
| institution | Kabale University |
| issn | 1007-9610 |
| language | zho |
| publishDate | 2024-09-01 |
| publisher | Editorial Office of Journal of Surgery Concepts & Practice |
| record_format | Article |
| series | Waike lilun yu shijian |
| spelling | doaj-art-53233fa7db544e1fb55f7b8af51f72d22025-01-23T10:48:45ZzhoEditorial Office of Journal of Surgery Concepts & PracticeWaike lilun yu shijian1007-96102024-09-01290542643310.16139/j.1007-9610.2024.05.10Anatomical simulation analysis of pancreaticobiliary junction in occult pancreaticobiliary reflux: based on Fluent studyLÜ Beining, HOU Nianzong, XIANG Yukai, DA Xuanbo, YANG Yulong, TIAN Fuzhou01. Center of Gallbladder Disease, Shanghai East Hospital, Tongji University, Shanghai 200120, China;2. Department of General Surgery, Western Theater General Hospital, Sichuan Chengdu 610083, ChinaObjective Computational fluid dynamics software combined with finite element method was used to conduct 2D numerical simulation of pancreaticobiliary junction, and analyze the influence of biliopancreatic ampullary diaphragm, opening direction and shape of duodenal papilla on occult pancreaticobiliary reflux(OPBR). Methods The data of anatomical structure of pancreaticobiliary junction were obtained from online information. Pancreaticobiliary junction was reconstructed in 2D by computational fluid dynamics Fluent 2020R2 software. Different models were drawn for the pancreaticobiliary junction according to the following parameters: biliopancreatic ampullary diaphragm (with/without), opening direction of duodenal papilla(biased to the side of bile duct/central/biased to the side of pancreatic duct). A total of 6 models were used to analyze the risk factors for OPBR. Results When the anatomical structure of the biliopancreatic duct confluence was normal, that was, the ampullary diaphragm exists, no matter how the shape of the duodenal papilla and the opening direction changed, there was no pancreaticobiliary reflux. When the common channel was >5 mm due to the absence of the ampullary diaphragm and duodenal papilla was biased to the side of bile duct, a small amount of pancreatic juice refluxed into the lower end of the bile duct. When the common channel was >5 mm due to the absence of the ampullary diaphragm and duodenal papilla open position was in the middle of the biliopancreatic duct, the velocity and flow rate of pancreatic juice entering bile duct increased, and the degree of reflux was maintained at the lower end of the bile duct. When the common channel was >5 mm due to the absence of the ampullary diaphragm and the duodenal papilla was biased to the side of pancreatic duct, the degree of pancreaticobiliary reflux was more serious, and pancreatic juice reflux was observed throughout the entire bile duct. On the basis of this reflux model, the length of common channel of biliopancreatic duct was shortened, and the opening of outflow tract was enlarged, and the phenomenon of pancreaticobiliary reflux disappeared. Conclusions Based on the Fluent study, it is found that anatomical structures such as ampullary diaphragm and duodenal papilla were closely related to the occurrence of OPBR. Pancreaticobiliary reflux can be terminated by shortening the common channel length of pancreaticobiliary junction and expanding the opening of outflow tract.https://www.qk.sjtu.edu.cn/jscp/fileup/1007-9610/PDF/1737619565934-1111058605.pdf|computational fluid dynamics|ampullary diaphragm|ansys fluent software|occult pancreaticobiliary reflux |
| spellingShingle | LÜ Beining, HOU Nianzong, XIANG Yukai, DA Xuanbo, YANG Yulong, TIAN Fuzhou Anatomical simulation analysis of pancreaticobiliary junction in occult pancreaticobiliary reflux: based on Fluent study Waike lilun yu shijian |computational fluid dynamics|ampullary diaphragm|ansys fluent software|occult pancreaticobiliary reflux |
| title | Anatomical simulation analysis of pancreaticobiliary junction in occult pancreaticobiliary reflux: based on Fluent study |
| title_full | Anatomical simulation analysis of pancreaticobiliary junction in occult pancreaticobiliary reflux: based on Fluent study |
| title_fullStr | Anatomical simulation analysis of pancreaticobiliary junction in occult pancreaticobiliary reflux: based on Fluent study |
| title_full_unstemmed | Anatomical simulation analysis of pancreaticobiliary junction in occult pancreaticobiliary reflux: based on Fluent study |
| title_short | Anatomical simulation analysis of pancreaticobiliary junction in occult pancreaticobiliary reflux: based on Fluent study |
| title_sort | anatomical simulation analysis of pancreaticobiliary junction in occult pancreaticobiliary reflux based on fluent study |
| topic | |computational fluid dynamics|ampullary diaphragm|ansys fluent software|occult pancreaticobiliary reflux |
| url | https://www.qk.sjtu.edu.cn/jscp/fileup/1007-9610/PDF/1737619565934-1111058605.pdf |
| work_keys_str_mv | AT lubeininghounianzongxiangyukaidaxuanboyangyulongtianfuzhou anatomicalsimulationanalysisofpancreaticobiliaryjunctioninoccultpancreaticobiliaryrefluxbasedonfluentstudy |