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Related Experiment Video

Updated: Dec 25, 2025

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
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Patient doses from image-guided radiation therapy.

Geoffrey S Ibbott1

  • 1UT MD Anderson Cancer Center, Houston, TX, USA.

Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)
|March 21, 2020
PubMed
Summary
This summary is machine-generated.

Patients undergoing frequent CT scans, especially those with cancer, can accumulate high radiation doses. Image-guided radiation therapy (IGRT) further increases this exposure, necessitating dose monitoring and reduction strategies.

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Area of Science:

  • Medical Imaging
  • Radiation Oncology

Background:

  • Recurrent CT examinations contribute to significant cumulative radiation doses in patients.
  • Patients with malignancy are particularly susceptible to high radiation exposure due to diagnostic imaging and radiation therapy.

Discussion:

  • X-ray-based image-guided radiation therapy (IGRT) adds substantial imaging dose, often to tissues beyond the tumor target.
  • The clinical benefits of IGRT must be weighed against the increased radiation exposure.
  • Monitoring and recording of imaging doses are crucial for patient safety.

Key Insights:

  • High cumulative radiation doses from CT scans are a concern, particularly for cancer patients.
  • IGRT significantly increases radiation exposure, impacting tissues outside the treatment area.
  • Dose reduction techniques and careful monitoring are essential.

Outlook:

  • Future research should focus on optimizing IGRT protocols to minimize radiation dose.
  • Developing advanced imaging techniques with lower radiation profiles is a priority.
  • Implementing robust dose management systems is critical for long-term patient care.