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

4D MR imaging using internal respiratory gating.

M von Siebenthal1, Ph Cattin, U Gamper

  • 1Computer Vision Laboratory, ETH, CH-8092 Zürich, Switzerland. mvonsieb@vision.ee.ethz.ch

Medical Image Computing and Computer-Assisted Intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention
|May 12, 2006
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

Author Correction: 3D structure and dynamics of Campi Flegrei enhance multi-hazard assessment.

Nature communications·2025
Same author

3D structure and dynamics of Campi Flegrei enhance multi-hazard assessment.

Nature communications·2025
Same author

Corrigendum: DiffuseRT: predicting likely anatomical deformations of patients undergoing radiotherapy (2024<i>Phys. Med. Biol.</i> 69 155016).

Physics in medicine and biology·2024
Same author

The influence of daily imaging and target margin reduction on secondary cancer risk in image-guided and adaptive proton therapy.

Physics in medicine and biology·2024
Same author

Robust optimization strategies for contour uncertainties in online adaptive radiation therapy.

Physics in medicine and biology·2024
Same author

DiffuseRT: predicting likely anatomical deformations of patients undergoing radiotherapy.

Physics in medicine and biology·2024

This study introduces a new free-breathing 4D MR imaging method. It captures full respiratory organ motion variability for improved proton therapy and other treatments.

Area of Science:

  • Medical imaging
  • Radiotherapy
  • Biomedical engineering

Background:

  • Respiratory organ motion significantly impacts the accuracy of radiation therapy, including proton therapy.
  • Current imaging techniques often require controlled breathing or assume strict periodicity, limiting the capture of natural respiratory variations.

Purpose of the Study:

  • To present a novel retrospective gating method for 4D (dynamic 3D) MR imaging during free breathing.
  • To capture the complete variability of respiratory organ deformation without assuming constant breathing depth or strict periodicity.
  • To improve image quality and enable better study of respiratory motion for treatment planning.

Main Methods:

  • A retrospective gating technique using internal image-based gating for 4D MR imaging.

Related Experiment Videos

  • Retrospective stacking of dynamic 2D images to reconstruct 3D images of moving organs throughout the respiratory cycle.
  • Noise reduction by combining multiple images to enhance the signal-to-noise ratio.

    • Main Results:

    • The method successfully captures the full variability of respiratory organ deformation during free breathing.
    • Reconstructed 3D images cover complete respiratory cycles.
    • Achieved image quality is comparable to breath-hold acquisitions.
    • Significantly increased signal-to-noise ratio through image combination.

    Conclusions:

    • The developed retrospective gating method offers a robust approach to imaging respiratory organ motion during free breathing.
    • This technique is valuable for proton therapy planning and can enhance other treatments relying on accurate motion assessment.
    • The method provides new possibilities for studying respiratory motion and evaluating gating techniques with less stringent breathing assumptions.