Modeling of intracranial tumor treating fields for the treatment of complex high-grade gliomas

Increasing the intensity of tumor treating fields (TTF) within a tumor bed improves clinical efficacy, but reaching sufficiently high field intensities to achieve growth arrest remains challenging due in part to the insulating nature of the cranium. Using MRI-derived finite element models (FEMs) and...

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Main Authors: Segar, David J., Bernstock, Joshua D., Arnaout, Omar, Bi, Wenya Linda, Friedman, Gregory K., Langer, Robert, Traverso, Giovanni, Rampersad, Sumientra M.
Other Authors: Koch Institute for Integrative Cancer Research at MIT
Format: Article
Language:English
Published: Springer Science and Business Media LLC 2024
Online Access:https://hdl.handle.net/1721.1/155041
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author Segar, David J.
Bernstock, Joshua D.
Arnaout, Omar
Bi, Wenya Linda
Friedman, Gregory K.
Langer, Robert
Traverso, Giovanni
Rampersad, Sumientra M.
author2 Koch Institute for Integrative Cancer Research at MIT
author_facet Koch Institute for Integrative Cancer Research at MIT
Segar, David J.
Bernstock, Joshua D.
Arnaout, Omar
Bi, Wenya Linda
Friedman, Gregory K.
Langer, Robert
Traverso, Giovanni
Rampersad, Sumientra M.
author_sort Segar, David J.
collection MIT
description Increasing the intensity of tumor treating fields (TTF) within a tumor bed improves clinical efficacy, but reaching sufficiently high field intensities to achieve growth arrest remains challenging due in part to the insulating nature of the cranium. Using MRI-derived finite element models (FEMs) and simulations, we optimized an exhaustive set of intracranial electrode locations to obtain maximum TTF intensities in three clinically challenging high-grade glioma (HGG) cases (i.e., thalamic, left temporal, brainstem). Electric field strengths were converted into therapeutic enhancement ratios (TER) to evaluate the predicted impact of stimulation on tumor growth. Concurrently, conventional transcranial configurations were simulated/optimized for comparison. Optimized intracranial TTF were able to achieve field strengths that have previously been shown capable of inducing complete growth arrest, in 98–100% of the tumor volumes using only 0.54–0.64 A current. The reconceptualization of TTF as a targeted, intracranial therapy has the potential to provide a meaningful survival benefit to patients with HGG and other brain tumors, including those in surgically challenging, deep, or anatomically eloquent locations which may preclude surgical resection. Accordingly, such an approach may ultimately represent a paradigm shift in the use of TTFs for the treatment of brain cancer.
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spelling mit-1721.1/1550412024-12-23T06:22:41Z Modeling of intracranial tumor treating fields for the treatment of complex high-grade gliomas Segar, David J. Bernstock, Joshua D. Arnaout, Omar Bi, Wenya Linda Friedman, Gregory K. Langer, Robert Traverso, Giovanni Rampersad, Sumientra M. Koch Institute for Integrative Cancer Research at MIT Massachusetts Institute of Technology. Department of Mechanical Engineering Increasing the intensity of tumor treating fields (TTF) within a tumor bed improves clinical efficacy, but reaching sufficiently high field intensities to achieve growth arrest remains challenging due in part to the insulating nature of the cranium. Using MRI-derived finite element models (FEMs) and simulations, we optimized an exhaustive set of intracranial electrode locations to obtain maximum TTF intensities in three clinically challenging high-grade glioma (HGG) cases (i.e., thalamic, left temporal, brainstem). Electric field strengths were converted into therapeutic enhancement ratios (TER) to evaluate the predicted impact of stimulation on tumor growth. Concurrently, conventional transcranial configurations were simulated/optimized for comparison. Optimized intracranial TTF were able to achieve field strengths that have previously been shown capable of inducing complete growth arrest, in 98–100% of the tumor volumes using only 0.54–0.64 A current. The reconceptualization of TTF as a targeted, intracranial therapy has the potential to provide a meaningful survival benefit to patients with HGG and other brain tumors, including those in surgically challenging, deep, or anatomically eloquent locations which may preclude surgical resection. Accordingly, such an approach may ultimately represent a paradigm shift in the use of TTFs for the treatment of brain cancer. 2024-05-22T19:01:34Z 2024-05-22T19:01:34Z 2023-01-30 2024-05-22T18:36:51Z Article http://purl.org/eprint/type/JournalArticle 2045-2322 https://hdl.handle.net/1721.1/155041 Segar, D.J., Bernstock, J.D., Arnaout, O. et al. Modeling of intracranial tumor treating fields for the treatment of complex high-grade gliomas. Sci Rep 13, 1636 (2023). en 10.1038/s41598-023-28769-9 Scientific Reports Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ application/pdf Springer Science and Business Media LLC Springer Science and Business Media LLC
spellingShingle Segar, David J.
Bernstock, Joshua D.
Arnaout, Omar
Bi, Wenya Linda
Friedman, Gregory K.
Langer, Robert
Traverso, Giovanni
Rampersad, Sumientra M.
Modeling of intracranial tumor treating fields for the treatment of complex high-grade gliomas
title Modeling of intracranial tumor treating fields for the treatment of complex high-grade gliomas
title_full Modeling of intracranial tumor treating fields for the treatment of complex high-grade gliomas
title_fullStr Modeling of intracranial tumor treating fields for the treatment of complex high-grade gliomas
title_full_unstemmed Modeling of intracranial tumor treating fields for the treatment of complex high-grade gliomas
title_short Modeling of intracranial tumor treating fields for the treatment of complex high-grade gliomas
title_sort modeling of intracranial tumor treating fields for the treatment of complex high grade gliomas
url https://hdl.handle.net/1721.1/155041
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