3DsMax软件用于人体软组织器官形变模拟的研究  

Application of 3DsMax to simulation of soft tissue deformation

作　　者：杨震[1,2] 卢虹冰[3] 

机构地区：[1]第四军医大学生物医学工程学院,西安710032 [2]空军工程大学理学院,西安710051 [3]生物医学工程学院计算机教研室

出　　处：《医疗卫生装备》2014年第6期5-8,24,共5页Chinese Medical Equipment Journal

基　　金：国家自然科学基金项目(81230035;81071220)

摘　　要：目的:研究在3DsMax软件上对软组织的形变进行模拟的可行性,用以简化常规传统医学模拟的步骤,提高从组织模型到形变模拟的效率。方法:利用3DsMax软件的力学系统,设置组织内部的特性,并建立组织内部的受力关系,通过动画形式体现在一定条件下的组织形变情况。选取膀胱模型作为实例,设置力学属性后,使用设定好的球体作为充盈的尿液模型,将其与膀胱模型做动画链接,通过球体形变,观察膀胱模型在变化的尿液充盈情况下自身的形变情况。结果:膀胱模型随着尿液模型体积的变化,会根据设置好的内部受力关系进行不规则形变,模型整体在时间和空间上均可进行观察,初步达到了组织形变模拟的目的。结论:该研究验证了使用3DsMax进行软组织形变模拟的可行性,通过实例推断,若进行进一步的详细设定,3DsMax软件可以进行更为细致的医学模拟。Objective To investigate the feasibility of computer simulation of soft tissue deformation by using 3DsMax. Methods The mechanical system of 3DsMax was used to set the inside-tissue stress relations which were animated into tissue deformation under a given stress condition. Following the setting of the mechanical property of a model bladder, a ball with preset parameters was used as the body of loaded urine. When the ball was connected with the model bladder through animation function of 3DsMax, the size of loaded urine was changed, and the deformation of model bladder was observed. Results In response to the change of the urine ball size, the model bladder deformed irregularly as conditioned by the preset inner stress relations. The whole model was available for both temporal and spatial observations, and a tentative simulation of tissue deformation was realized. Conclusion The feasibility of 3DsMax application to tissue deformation simulation is verified. It can be predicted that a complicated parameter setting will make possible a detailed medical simulation.

关 键 词：3DsMax 形变模拟 软组织 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] R318[自动化与计算机技术—计算机科学与技术]