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Charged particle therapy (CPT) offers significant benefits but faces cost and technology hurdles. Innovations in beam delivery systems aim to reduce treatment times and improve accessibility for better patient outcomes.

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Area of Science:

  • Medical Physics
  • Radiation Oncology
  • Accelerator Technology

Background:

  • Charged particle therapy (CPT) provides recognized physical and clinical advantages in cancer treatment.
  • High facility costs and technological limitations restrict CPT's widespread availability and full dosimetric potential.
  • Current CPT delivery techniques are hampered by extended treatment times, impacting clinical feasibility and patient care.

Purpose of the Study:

  • To review advancements in beam delivery systems (BDS) and accelerator technology for CPT.
  • To identify strategies for decreasing beam delivery time (BDT) by minimizing energy layer switching time (ELST).
  • To explore the potential of improved CPT delivery for enhanced treatment efficiency, efficacy, and cost-effectiveness.

Main Methods:

  • Detailed evaluation of the CPT delivery process, focusing on beam delivery systems (BDS).
  • Analysis of limitations and ongoing developments in BDS and related accelerator technology.
  • Discussion of strategies to minimize energy layer switching time (ELST) and its impact on beam delivery time (BDT).

Main Results:

  • Developments in BDS are crucial for improving shaping and timing capabilities in CPT.
  • Reducing ELST is a key factor in decreasing overall BDT, addressing motion and dosimetric challenges.
  • A large energy acceptance BDS shows clinical benefits and feasibility, supporting advanced CPT modalities.

Conclusions:

  • Improvements in CPT beam delivery systems can significantly reduce treatment times and increase efficiency.
  • Faster and higher quality CPT treatments are achievable through technological advancements, broadening treatment indications.
  • Further research into modalities like volumetric rescanning, FLASH, and online image-guided therapies will enhance CPT's future.