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Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
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Motion in radiotherapy: particle therapy.

C Bert1, M Durante

  • 1GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt, Germany. c.bert@gsi.de

Physics in Medicine and Biology
|July 22, 2011
PubMed
Summary
This summary is machine-generated.

Managing target motion in charged particle beam radiotherapy is crucial for accurate dose delivery. This review summarizes techniques for scattered and scanned beams to ensure effective treatment for moving tumors.

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Area of Science:

  • Medical Physics
  • Radiation Oncology
  • Radiotherapy Technology

Background:

  • Charged particle beam radiotherapy necessitates strategies to address target motion, which impacts dose delivery.
  • Organ motion significantly influences radiation dose, especially with increasing radiological depth.
  • Scanned beam delivery can lead to under-dosage of the clinical target volume due to motion-beam interference.

Purpose of the Study:

  • To review and summarize published data on motion management in charged particle beam radiotherapy.
  • To discuss the dosimetric impact of organ motion and strategies for scattered and scanned beam delivery.
  • To highlight research on countermeasures for motion-beam interference in scanned beam delivery.

Main Methods:

  • Literature review of published data on motion management in radiotherapy.
  • Analysis of dosimetric effects of organ motion.
  • Summary of motion management techniques during treatment planning, patient positioning, delivery, and validation.

Main Results:

  • Scattered beam delivery motion management is often based on established clinical practice.
  • Research on scanned beam delivery focuses on mitigating interference effects from target motion.
  • Effective motion management is critical for both scattered and scanned beam techniques.

Conclusions:

  • Motion management is essential for precise dose delivery in charged particle beam radiotherapy.
  • Techniques for scattered beam delivery are largely clinically established.
  • Advancements in scanned beam delivery motion management are emerging and expected in clinical practice soon.