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

Comparison of algorithms for multileaf collimator field segmentation.

W Que1

  • 1Department of Medical Biophysics, University of Toronto, Toronto Sunnybrook Regional Cancer Center, Ontario, Canada. WQue@acs.ryerson.ca

Medical Physics
|December 10, 1999
PubMed
Summary

Comparing eight multileaf collimator (MLC) segmentation algorithms for intensity modulated radiation therapy, the Xia and Verhey algorithm most often requires the fewest MLC field segments. However, multiple algorithms may be needed for optimal treatment delivery.

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

Particle size-dependent bioaccessibility of chromium in smelting soils: assessment by multi-method in vitro simulations.

Environmental monitoring and assessment·2025
Same author

Magnetic diagnostics for equilibrium reconstruction and realtime plasma control in NSTX-Upgrade.

The Review of scientific instruments·2014
Same author

'Tongue-and-groove' effect in intensity modulated radiotherapy with static multileaf collimator fields.

Physics in medicine and biology·2004
Same author

Radiation safety issues regarding the cremation of the body of an I-125 prostate implant patient.

Journal of applied clinical medical physics·2001
Same author

X-ray imaging using amorphous selenium: inherent spatial resolution.

Medical physics·1995

Area of Science:

  • Medical Physics
  • Radiation Oncology
  • Computational Imaging

Background:

  • Intensity modulated radiation therapy (IMRT) uses "stop and shoot" delivery.
  • Efficient multileaf collimator (MLC) field segmentation is crucial for minimizing treatment time and complexity.
  • Accurate translation of beam intensity maps into MLC segments is essential for precise radiation delivery.

Purpose of the Study:

  • To compare the efficiency of eight different MLC field segmentation algorithms.
  • To identify algorithms that minimize the number of MLC field segments for IMRT.
  • To evaluate the performance of novel and established segmentation algorithms.

Main Methods:

  • Performance evaluation of eight distinct MLC field segmentation algorithms.

Related Experiment Videos

  • Comparison based on the number of MLC field segments generated from beam intensity maps.
  • Analysis across various clinical cases and intensity maps.

    • Main Results:

    • The Xia and Verhey algorithm was most frequently the most efficient, yielding the fewest MLC segments.
    • No single algorithm demonstrated superior efficiency across all tested intensity maps and clinical scenarios.
    • The efficiency of algorithms can be influenced by background intensity levels.

    Conclusions:

    • A diverse set of MLC segmentation algorithms should be available in treatment planning systems.
    • Automated selection of the most efficient algorithm per intensity map can optimize IMRT delivery.
    • Strategies for handling non-zero background intensity levels require further investigation for efficiency gains.