[Finite element analysis of male lower urinary tract based on the collodion slice images].
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
; 35(4): 592-597, 2018 08 25.
Article
em Zh
| MEDLINE
| ID: mdl-30124023
ABSTRACT
Males typically have high rates of morbidity of primary bladder neck obstruction, while the existing urodynamic examination is invasive and more likely to cause false diagnosis. To build a non-invasive biomechanical detecting system for the male lower urinary tract, a finite element model for male lower urinary tract based on the collodion slice images of normal male lower urinary tract was constructed, and the fluid-structure interaction of the lower urinary tract was simulated based on the real urination environment. The finite element model of the lower urinary tract was validated by comparing the clinical experiment data with the simulation result. The stress, flow rate and deformation of the lower urinary tract were analyzed, and the results showed that the Von Mises stress and the wall shear stress at the membrane sphincter in the normal male lower urinary tract model reached a peak, and there was nearly 1 s delay than in the bladder pressure, which helped to validate the model. This paper lays a foundation for further research on the urodynamic response mechanism of the bladder pressure and flow rate of the lower urinary tract obstruction model, which can provide a theoretical basis for the research of non-invasive biomechanical detecting system.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
Zh
Ano de publicação:
2018
Tipo de documento:
Article