[HTML][HTML] Nonlinear model order reduction for problems with microstructure using mesh informed neural networks

P Vitullo, A Colombo, NR Franco, A Manzoni… - Finite Elements in …, 2024 - Elsevier
Many applications in computational physics involve approximating problems with
microstructure, characterized by multiple spatial scales in their data. However, these …

Modeling hypoxia-induced radiation resistance and the impact of radiation sources

L Possenti, P Vitullo, A Cicchetti, P Zunino… - Computers in Biology …, 2024 - Elsevier
Hypoxia contributes significantly to resistance in radiotherapy. Our research rigorously
examines the influence of microvascular morphology on radiotherapy outcome, specifically …

Deep learning enhanced cost-aware multi-fidelity uncertainty quantification of a computational model for radiotherapy

P Vitullo, NR Franco, P Zunino - arXiv preprint arXiv:2402.08494, 2024 - arxiv.org
Forward uncertainty quantification (UQ) for partial differential equations is a many-query task
that requires a significant number of model evaluations. The objective of this work is to …

A Computational Model of the Tumor Microenvironment Applied to Fractionated Radiotherapy

L Possenti, A Gallo, P Vitullo, A Cicchetti… - … Methods and Data …, 2024 - Springer
Radiotherapy consists in delivering a precise radiation dose to a specific tumor target in
order to eradicate tumor cells and to achieve local tumor control. The definition of the most …

Microvascular morphology affects radiotherapy outcomes: a computational study

L Possenti, P Vitullo, A Cicchetti, P Zunino, T Rancati - bioRxiv, 2023 - biorxiv.org
Radiotherapy (RT) is the most common cancer treatment, and hypoxia is one of the main
causes of resistance to RT. We investigate how microvascular morphology affects radiation …

Development of a mechanistic computational model of the microvasculature informed by patient-specific characteristics to assess radiotherapy outcomes

SVC MATERNE - 2023 - politesi.polimi.it
Microvasculature plays a crucial role in the microenvironment, providing nutrients/drugs, and
facilitating the trafficking of immune cells. In previous studies, degraded microvascular …

Approximation of multiscale problems using domain decomposition methods and model order reduction

V Brenzone - 2023 - politesi.polimi.it
This study tackles the main challenge of numerically solving multiscale problems, which
arises from the complexity involved in discretizing, assembling, and solving the multiscale …

Sensitivity analysis of pharmacokinetics in the tumor microenvironment

R Montanelli Eccher - 2022 - politesi.polimi.it
Oncology stands out as one of the most research-intensive fields, with the goal of
developing increasingly effective treatments with fewer side effects. However, the process of …