Research On Physical Modeling And Visualization Technology Of Cavity Soft Tissue Based On Data Driven

At present,most reports of medical auxiliary diagnosis and treatment are described by two-dimensional images and texts.For patients,the content of the report is too professional and difficult to understand;for doctors,the data is not intuitive and the visualization effect is not good.With the continuous advancement of technology,the visual requirements for medical examination results are becoming more and more intense.To this end,many scholars have carried out related research,in which physical modeling of soft tissue is one of the research hotspots.However,the traditional physical modeling methods are purely virtual simulations,and the simulation cannot be linked with the data measured by the medical examination,that is,the data-driven soft tissue cannot be deformed.Aiming at the above problems,this paper proposes a data-driven cavity soft tissue physical modeling method for cavity soft tissue.The method is based on the traditional mass spring model.By perfecting the assumptions of the mass point,the internal pressure of the soft tissue of the cavity is incorporated into the mechanical calculation of the model deformation.In order to receive the pressure in the real cavity soft tissue,the method also has an interface for the external real pressure data,and the pressure data can be fed back into the simulation system in real time to realize the data-driven model deformation.In order to prove the validity of the method,the volume index is used to verify the accuracy of the model.Finally,this article takes the bladder as an example,and uses OpenGL to build a bladder examination visualization system to simulate the filling process of the bladder.The results show that the volumetric accuracy error is within 1ml,which meets the simulation accuracy requirements,which indicates that the data-driven cavity soft tissue physical modeling method proposed in this paper is feasible.