Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Uncertainty analysis in polymer gel dosimetry.

C Baldock1, P Murry, T Kron

  • 1Centre for Medical and Health Physics, Queensland University of Technology, Brisbane, Australia. c.baldock@qut.edu.au

Physics in Medicine and Biology
|December 10, 1999
PubMed
Summary

Polymer gel dosimeters offer precise 3D radiation dose measurements for advanced radiotherapy. Reducing noise in R2 maps is key to improving the accuracy of these essential medical physics tools.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Deep learning and radiomics models in patients with advanced non-small cell lung cancer treated with immunotherapy combined with stereotactic radiotherapy.

Scientific reports·2026
Same author

Certification of radiation protection professionals in Australia and New Zealand.

Annals of the ICRP·2026
Same author

Function Preservation with Brachytherapy: Reviving the Art.

Clinical oncology (Royal College of Radiologists (Great Britain))·2023
Same author

Challenges in the Sustainability of Brachytherapy Service in Contemporary Radiotherapy.

Clinical oncology (Royal College of Radiologists (Great Britain))·2023
Same author

Modern Tools for Modern Brachytherapy.

Clinical oncology (Royal College of Radiologists (Great Britain))·2023
Same author

TROG 14.04: Multicentre Study of Feasibility and Impact on Anxiety of DIBH in Breast Cancer Patients.

Clinical oncology (Royal College of Radiologists (Great Britain))·2022

Area of Science:

  • Medical Physics
  • Radiotherapy Dosimetry
  • Magnetic Resonance Imaging

Background:

  • Advanced radiotherapy requires precise 3D absorbed dose measurements.
  • Polymer gel dosimeters (PGDs) coupled with MRI offer high spatial resolution for this purpose.
  • Accurate uncertainty quantification is crucial for PGDs in clinical verification.

Purpose of the Study:

  • To estimate the overall uncertainty of polymer gel dosimeters.
  • To identify key factors influencing uncertainty in PGD measurements.
  • To guide future improvements in PGD accuracy for radiotherapy verification.

Main Methods:

  • Utilized uncertainty propagation analysis.
  • Incorporated uncertainties from R2 (nuclear magnetic resonance relaxation rate) maps.

Related Experiment Videos

  • Included uncertainties associated with calibration data.

    • Main Results:

    • The lowest obtainable uncertainty was estimated at approximately 3% at 8 Gy and 7% at 2 Gy.
    • Noise in the R2 map was identified as the most significant factor affecting overall uncertainty.
    • Current PGD technology demonstrates promising but improvable accuracy.

    Conclusions:

    • Polymer gel dosimetry with MRI shows potential for accurate radiotherapy verification.
    • Reducing R2 map noise is critical for minimizing dosimeter uncertainty.
    • Further research should focus on enhancing signal-to-noise ratio for improved precision.