EXTH-75. APPLICATION OF TUMOR TREATING FIELDS (TTFIELDS) TO THE HEAD AND TORSO OF MICE WITH THE DEDICATED INOVIVO SYSTEM
العنوان: | EXTH-75. APPLICATION OF TUMOR TREATING FIELDS (TTFIELDS) TO THE HEAD AND TORSO OF MICE WITH THE DEDICATED INOVIVO SYSTEM |
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المؤلفون: | Uri Weinberg, Adel Zeidan, Anna Shteingauz, Mijal Munster, Roni Blatt, Moshe Giladi, Yoram Palti, Yaara Porat, Shiri Davidi, Zeev Bomzon, Tal Marciano |
المصدر: | Neuro Oncol |
بيانات النشر: | Oxford University Press (OUP), 2021. |
سنة النشر: | 2021 |
مصطلحات موضوعية: | Cancer Research, medicine.anatomical_structure, Oncology, business.industry, Medicine, Head (vessel), Neurology (clinical), Anatomy, 26th Annual Meeting & Education Day of the Society for Neuro-Oncology, Torso, business |
الوصف: | INTRODUCTION Tumor Treating Fields (TTFields) therapy is an approved anti-cancer treatment for glioblastoma and mesothelioma. TTFields are delivered to patients continuously by two sets of arrays placed on opposite sides of the body at the tumor region to generate two perpendicular electric fields. Previously, in vivo studies of TTFields were limited due to the lack of a dedicated system that could maintain continuous and adequate contact of the arrays with the animal’s skin as well as the stress imposed on the animals by individual housing and the motility limitations they experience during treatment. METHODS Different electrode layouts were explored to optimize the intensity of the electric fields delivered to the target locations (therapeutic threshold >1 V/cm). The ability of various adhesive materials and wire coiling prevention strategies to increase TTFields device usage was examined. Stress reduction with different housing methods was evaluated via clinical examination of the animals. RESULTS Optimal array layouts were identified based on simulation data for TTFields delivery to the torso or the head of the mouse. Compacting conductors into a single printed circuit cable connected to a novel electric swivel machine resulted in fewer wire entanglements, and the improved adhesives resulted in fewer array replacements, overall elevating device usage. Improved cage design permitted pairs of mice to maintain social interactions while individually housed. Less weight loss was seen for animals housed in the dyadic relative to the standard solitary cages, indicating reduced stress. CONCLUSIONS The inovivo system provides means for continuous delivery of therapeutic levels of TTFields to the head and torso of mice while minimizing animal stress and increasing device usage. The new head arrays enable application of TTFields to the head of mice for the first time, allowing expansion of glioblastoma treatment research. |
تدمد: | 1523-5866 1522-8517 |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1534d26a643178da28eef85fe34a249 https://doi.org/10.1093/neuonc/noab196.714 |
حقوق: | OPEN |
رقم الأكسشن: | edsair.doi.dedup.....d1534d26a643178da28eef85fe34a249 |
قاعدة البيانات: | OpenAIRE |
تدمد: | 15235866 15228517 |
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