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 Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Radiation Effects in Electret Organic Thin-Film Transistors Due to High Flux and High Dose X-Ray Irradiation.

Advanced materials (Deerfield Beach, Fla.)·2025
Same author

HyperSight CBCT image quality and metal artifact reduction for adaptive head and neck radiotherapy: Results from a prospective clinical trial.

Journal of applied clinical medical physics·2025
Same author

Online CBCT-based adaptive radiation with reduced PTV margins for prostate cancer: Does reference plan comparison tell the whole story?

Clinical and translational radiation oncology·2025
Same author

Dose calculation accuracy of clinical radiotherapy plans using next generation cone beam computed tomography imaging technology.

Physics and imaging in radiation oncology·2025
Same author

Multi-institutional study on image quality for a novel CBCT solution on O-ring linac.

Journal of applied clinical medical physics·2025
Same author

Optimizing the deliverability of binary collimation-based SRS treatment for multiple metastases with multiple prescriptions.

Medical physics·2025
Same journal

Correction to "On the shape of the radiation survival curve in tumor spheroids: The role of oxygen heterogeneity".

Medical physics·2026
Same journal

Multi-view constrained semi-supervised vertebra detection for 3D ultrasound spine volume.

Medical physics·2026
Same journal

Accuracy of quantitative <sup>177</sup>Lu SPECT/CT imaging: A systematic review.

Medical physics·2026
Same journal

Physics-constrained dual-domain network for CBCT reconstruction from orthogonal X-rays in gynecologic radiotherapy.

Medical physics·2026
Same journal

Decomposition-based harmonization for quantitative PET imaging across scanners and radiotracers.

Medical physics·2026
Same journal

Development and evaluation of an in vivo dose-based monitoring system for electron FLASH radiation therapy.

Medical physics·2026
See all related articles

Related Experiment Video

Updated: Feb 19, 2026

Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy
08:17

Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy

Published on: June 7, 2015

16.3K

Dynamic collimator trajectory algorithm for multiple metastases dynamic conformal arc treatment planning.

R Lee MacDonald1, Christopher G Thomas1,2,3,4, Alasdair Syme1,2,3

  • 1Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada.

Medical Physics
|November 3, 2017
PubMed
Summary
This summary is machine-generated.

A new algorithm optimizes radiotherapy by dynamically adjusting collimator angles, significantly reducing treatment time and radiation exposure for patients with multiple brain metastases. This dynamic conformal arc technique improves efficiency and safety in stereotactic radiosurgery.

Keywords:
SRSdynamic collimator trajectorydynamic conformal arcmultiple metastasestreatment planning

More Related Videos

Treatment of Liver Metastases Using an Internal Target Volume Method for Stereotactic Body Radiotherapy
08:54

Treatment of Liver Metastases Using an Internal Target Volume Method for Stereotactic Body Radiotherapy

Published on: May 8, 2018

15.1K
Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
08:34

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

21.2K

Related Experiment Videos

Last Updated: Feb 19, 2026

Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy
08:17

Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy

Published on: June 7, 2015

16.3K
Treatment of Liver Metastases Using an Internal Target Volume Method for Stereotactic Body Radiotherapy
08:54

Treatment of Liver Metastases Using an Internal Target Volume Method for Stereotactic Body Radiotherapy

Published on: May 8, 2018

15.1K
Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
08:34

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

21.2K

Area of Science:

  • Radiation Oncology
  • Medical Physics
  • Image-Guided Therapy

Background:

  • Dynamic conformal arc (DCA) radiotherapy is used for precise tumor targeting.
  • Optimizing beam's eye view (BEV) fitting is crucial for effective dose delivery.
  • Current methods may have limitations in efficiency and normal tissue sparing for complex cases like multiple metastases.

Purpose of the Study:

  • To develop a novel algorithm for dynamic collimator positioning in DCA radiotherapy.
  • To optimize BEV target fitting, particularly for stereotactic radiosurgery of multiple metastases.
  • To reduce treatment time and improve dose conformity.

Main Methods:

  • A trajectory algorithm was created to dynamically adjust collimator angles based on arc control points.
  • The algorithm quantizes 'whitespace' (non-target BEV areas) to generate a 2D map of collimator fit.
  • Minimization of integrated whitespace identified optimal dynamic collimator trajectories, compared against fixed-angle DCA and VMAT plans.

Main Results:

  • The whitespace metric strongly correlated with normal tissue dose (R² = 0.90).
  • Optimized dynamic collimator trajectories reduced monitor units by up to 49.7% compared to VMAT.
  • Organ-at-risk and normal brain metrics were superior or comparable to existing treatment plans.

Conclusions:

  • Dynamic collimator trajectories enhance DCA delivery efficiency for multiple cranial metastases.
  • This technique offers improved treatment efficiency without introducing new patient safety risks.
  • The developed algorithm shows significant potential for optimizing complex radiotherapy treatments.