Time Factor in External Radiotherapy: Radiobiological Mechanisms and Clinical Applications

被引:0
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作者
Abdelhak Maghous
El-Amin Marnouche
Mouhcine Hommadi
Maroua Belemlih
Noha Zaghba
Ayoub Ennadif
Amine Bazine
Issam Lalya
Khalid Andaloussi Saghir
Mohamed Elmarjany
Khalid Hadadi
Hassan Sifat
机构
[1] Hassan II University (Univh2c) of Casablanca,Faculty of Medicine and Pharmacy Casablanca (FMPC), Mohammed V Military Teaching Hospital
[2] Mohammed V University in Rabat,Department of Radiotherapy, Mohammed V Military Teaching Hospital
来源
关键词
External radiotherapy; Fractionation; Spreading; Radiobiology; Repair of sublethal damage; Redistribution in cell cycle; Reoxygenation; Repopulation; Hyperfractionation; Accelerated treatment; Hypofractionated treatment;
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摘要
This review article explores the critical role of time in external radiotherapy, focusing on the concepts of fractionation and spreading. It traces the evolution of radiobiology, highlighting key milestones that have shaped current treatment strategies. The article delves into the four fundamental principles of radiobiology—Repair, Redistribution, Reoxygenation, and Repopulation—and their implications for fractionated radiation therapy. It further discusses the clinical applications of these principles, including hyperfractionated, accelerated, and hypofractionated treatments. This review provides a comprehensive understanding of how the time factor influences the effectiveness of radiotherapy and its impact on healthy and tumor tissues.
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