A Combined Computational and Experimental Analysis on the Thickness of the Urinary Bladder Wall Layers during Filling Phase

The present study, modeling the mechanical behavior of the bladder is very important and vital for clinical applications. All techniques do not easily success to assess the biomechanical alterations in bladder wall layers under various pressure loading conditions. In the finite element method, several hyperelastic theories are used for studying and modeling the urinary bladder extension during filling phase. All layers of the bladder have different mechanical features generate high extension when exposed to the various pressure loading. The present study computational analysis of bladder wall layers has comparable data for experimental analysis by ultrasound imaging: both shows that the study here provides further understanding of the changes in the thickness values that happen in bladder wall layers. Finite element method can be utilized as a predictive tool to determine the deformation of three layers. The detrusor muscle lessens to (1.619324) mm from (2.8) mm registering a 42.167% change in its thickness at 19kPa pressure loading. The thickness of mucosa layer lessens between (0.8-0.3) mm by 62.5% decreasing proportion. The serona layer lessens from 0.7 mm to 0.2554 mm by 63.51% decreasing proportion.