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Updated: Aug 31, 2025

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Out-of-field effects: lessons learned from partial body exposure.

S Pazzaglia1, M Eidemüller2, K Lumniczky3

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Radiation and Environmental Biophysics
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PubMed
Summary
This summary is machine-generated.

Partial body radiation exposure causes systemic effects beyond the irradiated area. Understanding these out-of-field effects is crucial for accurate health risk assessment and personalized medicine.

Keywords:
BrainCardiovascular diseaseExtracellular vesiclesImmune cellsOut-of-field dosesRadiation dosimetrySecondary cancerSystemic radiation effects

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Area of Science:

  • Radiation biology
  • Radiobiology
  • Medical physics

Background:

  • Most medical and occupational radiation exposures involve partial body irradiation with inhomogeneous doses.
  • Emerging evidence suggests that radiation effects extend beyond the directly irradiated area, impacting systemic health.

Purpose of the Study:

  • To discuss recent advancements in understanding partial body radiation exposure and its systemic effects.
  • To explore clinical, epidemiological, dosimetric, and mechanistic aspects of out-of-field effects.

Main Methods:

  • The study session focused on discussions and presentations covering various facets of partial body exposure.
  • Key areas included immune cell dysfunction, cardiovascular diseases, and brain effects.

Main Results:

  • Out-of-field effects are recognized as significant components of the overall radiation response.
  • These effects are important for understanding radiation-induced pathologies and identifying high-risk organs.

Conclusions:

  • A deeper mechanistic understanding of out-of-field effects and improved modeling are priorities for future research.
  • This research is vital for refining risk models and personalizing health risk assessments for non-cancer and cancer effects after partial body irradiation.