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

Technical note: A novel boundary condition using contact elements for finite element based deformable image

Tiezhi Zhang1, Nigel P Orton, T Rockwell Mackie

  • 1Department of Human Oncology, University of Wisconsin, Madison, Wisconsin 53792, USA.

Medical Physics
|October 19, 2004
PubMed
Summary
This summary is machine-generated.

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

A novel QA method for adaptive aperture position verification of proton therapy system.

Medical dosimetry : official journal of the American Association of Medical Dosimetrists·2026
Same author

Developing Bragg-peak FLASH proton irradiator using permanent magnet synchrotron.

Journal of radiosurgery and SBRT·2026
Same author

First multi-institutional systematic comparison of the neutron ambient dose equivalent produced by proton therapy systems.

Physics in medicine and biology·2025
Same author

Dual-source cone-beam CT for HDR brachytherapy in-suite imaging: Simulation studies of limited angle image reconstruction based on deep image prior.

Brachytherapy·2025
Same author

Three-dimensional proton FLASH dose rate measurement at high spatiotemporal resolution using a novel multi-layer strip ionization chamber (MLSIC) device.

Medical physics·2025
Same author

Retrospective 4D-CT binning based on concurrent non-contact respiratory and cardiac phase tracking using millimeter wave (mmWave) radar.

Medical physics·2025

This study introduces a novel boundary condition for physics-model-based deformable image registration, improving organ deformation prediction accuracy in image-guided radiotherapy. The new method uses finite element contact-impact analysis for more reliable results.

Area of Science:

  • Medical physics
  • Radiotherapy
  • Medical imaging

Background:

  • Deformable image registration is crucial for image-guided radiotherapy.
  • Physics-model-based methods, particularly finite element analysis (FEA), are under investigation.
  • FEA accuracy relies on boundary conditions, often derived from difficult organ surface matching in medical images.

Purpose of the Study:

  • To develop a new boundary condition for FEA-based deformable image registration.
  • To overcome the limitations of traditional surface matching methods.
  • To improve the accuracy of predicting organ deformation.

Main Methods:

  • Developed a novel boundary condition using finite element contact-impact analysis.
  • Simulated organ-surrounding body interaction, allowing automatic deformation to a minimum internal energy state.

Related Experiment Videos

  • Applied the method to CT images of the lung during exhalation and full inhalation.

    • Main Results:

    • Generated a displacement vector map for the lung.
    • Demonstrated satisfactory agreement with validation data in most lung regions.
    • The new approach proved simple and operator-independent.

    Conclusions:

    • The novel boundary condition simplifies FEA for deformable image registration.
    • This method enhances the accuracy of predicting organ deformation.
    • It offers a promising advancement for image-guided radiotherapy.