A global sensitivity analysis approach applied to a multiscale model of microvascular flow

Computer Methods in Biomechanics and Biomedical Engineering
L PossentiP Zunino

Abstract

A global sensitivity analysis of a multiscale computational model of microvascular flow is presented. A total of 140 simulations have been completed and analyzed varying 6 input parameters and considering their effects on 7 output variables. Interestingly, the vascular network topology has been found as a determinant factor for both vasculature-related and interstitium-related quantities. Regarding the firsts, the vascular network topology has obtained a score of 5.5/6 and 6/6 for average and spatial distribution respectively (where 6 is the maximum and 1 is the minimum). On the other hand, considering interstitium-related quantities, the score is 4/6 and 5/6 for average and spatial distribution respectively. These results suggest that the network topology has a significant influence on the outcome of the computational analysis.

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Citations

Jun 30, 2021·Annals of Biomedical Engineering·Luca PossentiPaolo Zunino

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