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基于压力采集和FEM模型的软组织参数测量方法

DOI: 10.3969/j.issn.1005-3026.2015.09.007, PP. 1246-1250

Keywords: 软组织参数测量,压力采集,参数参照模型,有限元,BP神经网络

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Abstract:

提出基于压力采集和FEM模型的软组织参数测量方法,搭建基于光学运动跟踪系统和压力采集模块的软组织参数测量平台,对软组织形变过程三维重建,通过带压力传感器的ARM采集板获取压力值,采用BP神经网络对传感器进行精度校正.基于软组织形变集合构建四面体有限元模型计算软组织的初始参数弹性模量与泊松比,并提出一种参数参照模型对初始参数进行修正,通过实验验证参数的准确性.实验结果表明,用所述方法求得的软组织参数计算的软组织形变与真实测量所得软组织形变的平均相对误差为1.03%~1.60%,符合实际工程应用对软组织形变的精度要求.

References

[1]  Ma W C,Jones A,Chiang J Y,et al.Facial performance synthesis using deformation driven polynomial displacement maps [J].ACM Transactions on Graphics,2008,27(5):1-10.
[2]  Bickel B, Lang M, Botsch M, et al.Pose-space animation and transfer of facial details [C]//Proceedings of ACM SIGGRAPH / Eurographics Symposium on Computer Animation.Dublin:SCA,2008:57-66.
[3]  Kry P G,Pai D K.Interaction capture and synthesis [C]// Proceedings of ACM SIGGRAPH.New York,2006:872-880.
[4]  张蕊红,朱彤. 基于脉冲回波超声的组织粘弹性参数测量研究与实验[J].医学临床工程,2012,19(12):2107-2109.(Zhang Rui-hong,Zhu Tong.Research and experiment of tissue viscoelastic parameters measurement based on pulse-echo ultrasound [J].Clinical Medical & Engineering,2012,19(12):2107-2109.)
[5]  周绮平,李玉婵,欧阳斯华,等. 四种超声心动图技术评价正常人心肌生物力学参数及其与心功能相关关系[J].心脏杂志,2013,25(1):85-89.(Zhou Qi-ping,Li Yu-chan,Ouyang Si-hua,et al.Study of normal myocardial biomechanical parameters and their relationship with cardiac functions using multimodality echocardiographic techniques [J].Chinese Heart Journal,2013,25(1):85-89.)
[6]  Evren S,Mert S,Cagatay B,et al.A robotic indenter for minimally invasive measurement and characterization of soft tissue response [J].Medical Image Analysis,2007,11(4):361-373.
[7]  Nealen A,Muller M,Keiser R,et al.Physically based deformable models in computer graphics [J].Computer Graphics Forum,2006,25(4):809-836.
[8]  孙培栋,陈春,吴长福,等. 有限元分析中软组织力学参数的设定及验证[J]. 医用生物力学,2012,27(1):27-31.(Sun Pei-dong,Chen Chun,Wu Chang-fu,et al.Assignment and verification on mechanical parameters of soft tissue in finite element analysis [J].Journal of Medical Biomechanics,2012,27(1):27-31.)
[9]  Bianca E,Chris M D S T,Lee H D,et al.Analysis of biomechanical parameters extracted from anorectal manometry of fecally-continent and in continent patients [J].Revista Latino-Americana de Enfermagem,2012,20(6):1117-1124.
[10]  Amandine S,Carl E A,Hicham G,et al.Biomechanical evaluation of predictive parameters of progression in adolescent isthmic spondylolisthesis:a computer modeling and simulation study [J].Scoliosis,2012,7(2):1-9.

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