With the developments of surgical skills and immunology, bile duct complications after liver transplantation have been reduced from half to less than one third, but the incidence of bile duct stenosis after transplant...With the developments of surgical skills and immunology, bile duct complications after liver transplantation have been reduced from half to less than one third, but the incidence of bile duct stenosis after transplantation is still as high as 17%.^1,2 During liver transplantation, bile ducts may be damaged in several ways, most of which affect directly or indirectly peribiliary vascular plexus （PVP） and lead to bile duct complications after operation. The complications are more common in hepatohilar bile ducts because of lack of collateral circulation and easily damaged blood supply^3,4 so that it is necessary to know the anatomical structure of PVP. This study explored the anatomical structure of hepatohilar PVP in rats and dogs using the three dimensional reconstruction technique of computer microvisualization with MoticBuaa3Dvol software and ink perfusion, transparency management.展开更多
A “LAG & RLC” visualization algorithm has been presented to display a clear three dimensional structure from stereo slice data which has the characteristics of multiple layer structure. This algorithm is based o...A “LAG & RLC” visualization algorithm has been presented to display a clear three dimensional structure from stereo slice data which has the characteristics of multiple layer structure. This algorithm is based on wire frame model which can do multiple logical operations and has multiple display effects. It has wide use in biomedical science and computer graphics. The practical system is based on PC with a TVGA adapter at least 512k byte display memory and 2M byte extended memory.展开更多
Precision liver surgery has advanced significantly with the improvements of technology,and led to a significant decrease in mortality and complication rates.We argued for the necessity of a paradigm shift in liver sur...Precision liver surgery has advanced significantly with the improvements of technology,and led to a significant decrease in mortality and complication rates.We argued for the necessity of a paradigm shift in liver surgery,and advocated“precision liver resection”as a surgical concept for the first time in 2006.The aim of precision liver surgery involves personalized surgery planning based on individual patient status.The core of the precision liver surgery is to be visualizable,quantifiable,and controllable also known as three essential elements.Since precision paradigm is essential in modern surgery,characterized by multi-objective optimization accommodating therapeutic effectiveness,surgical safety,and minimal invasiveness,it had expanded to different surgery,such as neurosurgery and gastrointestinal surgery.Techniques such as three-dimensional(3D)reconstruction,intraoperative navigation systems,and indocyanine green(ICG)fluorescence imaging facilitate precise identification and removal of liver tumors while preserving healthy liver tissue.These advancements not only promote the certainty,predictability,and controllability in surgical practice,and achieve the balance of these three essential elements.As technological progress continues,precision liver surgery holds the promise of safer and more effective treatments.Precision medicine aims to balance operative risk against survival benefit by removing targeted lesions,protecting liver function,minimizing surgical trauma.The ultimate aim of precision medicine is the maximization of patient benefit(Fig.1).展开更多
文摘With the developments of surgical skills and immunology, bile duct complications after liver transplantation have been reduced from half to less than one third, but the incidence of bile duct stenosis after transplantation is still as high as 17%.^1,2 During liver transplantation, bile ducts may be damaged in several ways, most of which affect directly or indirectly peribiliary vascular plexus （PVP） and lead to bile duct complications after operation. The complications are more common in hepatohilar bile ducts because of lack of collateral circulation and easily damaged blood supply^3,4 so that it is necessary to know the anatomical structure of PVP. This study explored the anatomical structure of hepatohilar PVP in rats and dogs using the three dimensional reconstruction technique of computer microvisualization with MoticBuaa3Dvol software and ink perfusion, transparency management.
文摘A “LAG & RLC” visualization algorithm has been presented to display a clear three dimensional structure from stereo slice data which has the characteristics of multiple layer structure. This algorithm is based on wire frame model which can do multiple logical operations and has multiple display effects. It has wide use in biomedical science and computer graphics. The practical system is based on PC with a TVGA adapter at least 512k byte display memory and 2M byte extended memory.
基金supported by the Beijing Research Ward Excellence Program,BRWEP(BRWEP2024W032240108 for Wang S)National Natural Science Foundation of China(No.81972726 and 82273074 for Yang T+2 种基金No.81930119,No.82090050,and No.82090053 for Dong J)Shanghai Health and Hygiene Discipline Leader Project(No.2022XD001 for Yang T)Shanghai Outstanding Academic Leader Program(No.23XD1424900 for Yang T).
文摘Precision liver surgery has advanced significantly with the improvements of technology,and led to a significant decrease in mortality and complication rates.We argued for the necessity of a paradigm shift in liver surgery,and advocated“precision liver resection”as a surgical concept for the first time in 2006.The aim of precision liver surgery involves personalized surgery planning based on individual patient status.The core of the precision liver surgery is to be visualizable,quantifiable,and controllable also known as three essential elements.Since precision paradigm is essential in modern surgery,characterized by multi-objective optimization accommodating therapeutic effectiveness,surgical safety,and minimal invasiveness,it had expanded to different surgery,such as neurosurgery and gastrointestinal surgery.Techniques such as three-dimensional(3D)reconstruction,intraoperative navigation systems,and indocyanine green(ICG)fluorescence imaging facilitate precise identification and removal of liver tumors while preserving healthy liver tissue.These advancements not only promote the certainty,predictability,and controllability in surgical practice,and achieve the balance of these three essential elements.As technological progress continues,precision liver surgery holds the promise of safer and more effective treatments.Precision medicine aims to balance operative risk against survival benefit by removing targeted lesions,protecting liver function,minimizing surgical trauma.The ultimate aim of precision medicine is the maximization of patient benefit(Fig.1).
