Data-Driven Simulation of Fisher-Kolmogorov Tumor Growth Models Using Dynamic Mode Decomposition

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The computer simulation of organ-scale biomechanistic models of cancer personalized via routinely collected clinical and imaging data enables to obtain patient-specific predictions of tumor growth and treatment response over the anatomy of the patient's affected organ. These patient-specific computational forecasts have been regarded as a promising approach to personalize the clinical management of cancer and derive optimal treatment plans for individual patients, which constitute timely and critical needs in clinical oncology. However, the computer simulation of the underlying spatiotemporal models can entail a prohibitive computational cost, which constitutes a barrier to the successful development of clinically-actionable computational technologies for personalized tumor forecasting. To address this issue, here we propose to utilize dynamic-mode decomposition (DMD) to construct a low-dimensional representation of cancer models and accelerate their simulation. DMD is an unsupervised machine learning method based on the singular value decomposition that has proven useful in many applications as both a predictive and a diagnostic tool. We show that DMD may be applied to Fisher-Kolmogorov models, which constitute an established formulation to represent untreated solid tumor growth that can further accommodate other relevant cancer phenomena (e.g., therapeutic effects, mechanical deformation). Our results show that a DMD implementation of this model over a clinically relevant parameter space can yield promising predictions, with short to medium-term errors remaining under 1% and long-term errors remaining under 20%, despite very short training periods. In particular, we have found that, for moderate to high tumor cell diffusivity and low to moderate tumor cell proliferation rate, DMD reconstructions provide accurate, bounded-error reconstructions for all tested training periods. Additionally, we also show that the three-dimensional DMD reconstruction of the tumor field can be leveraged to accurately reconstruct the displacement fields of the tumor-induced deformation of the host tissue. Thus, we posit the proposed data-driven approach has the potential to greatly reduce the computational overhead of personalized simulations of cancer models, thereby facilitating tumor forecasting, parameter identification, uncertainty quantification, and treatment optimization.

Medienart:	E-Artikel

Erscheinungsjahr:	2022
Erschienen:	2022

Enthalten in:	Zur Gesamtaufnahme - volume:144
Enthalten in:	Journal of biomechanical engineering - 144(2022), 12 vom: 01. Dez.

Sprache:	Englisch

Beteiligte Personen:	Viguerie, Alex [VerfasserIn] Grave, Malú [VerfasserIn] Barros, Gabriel F [VerfasserIn] Lorenzo, Guillermo [VerfasserIn] Reali, Alessandro [VerfasserIn] Coutinho, Alvaro L G A [VerfasserIn]

Links:	Volltext

Themen:	Computational oncology Computer simulation Dynamic mode decomposition Journal Article Mechanistic modeling of cancer Research Support, Non-U.S. Gov't Scientific machine learning

Anmerkungen:	Date Completed 23.08.2022 Date Revised 30.08.2022 published: Print Citation Status MEDLINE

doi:	10.1115/1.4054925

funding:
Förderinstitution / Projekttitel:

PPN (Katalog-ID):	NLM342920065