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

Computed Tomography01:10

Computed Tomography

5.5K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
5.5K

You might also read

Related Articles

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

Sort by
Same author

Effect of intrathecal fentanyl on dexmedetomidine requirement for sedation during spinal anesthesia: a randomized controlled trial.

Journal of Yeungnam medical science·2026
Same author

Near-Theoretical-Limit Doping of Poly(benzodifurandione) through Carbonyl-Driven Aminoalkylsilane Attachment.

Journal of the American Chemical Society·2026
Same author

A proof-of-concept automated method for accurate skin dosimetry: correcting overestimated surface dose measurements.

Physics in medicine and biology·2026
Same author

Updated pediatric cardiopulmonary resuscitation: a comprehensive review of the 2025 guidelines.

Anesthesia and pain medicine·2026
Same author

Ramosetron-induced acute dystonic extrapyramidal reactions: A case report.

Saudi journal of anaesthesia·2026
Same author

Effect of intraoperative music on quality of recovery after arthroscopic knee surgery: a prospective, double-blind, randomized controlled trial.

Journal of Yeungnam medical science·2026

Related Experiment Video

Updated: Aug 30, 2025

Applications of Spatio-temporal Mapping and Particle Analysis Techniques to Quantify Intracellular Ca2+ Signaling In Situ
09:34

Applications of Spatio-temporal Mapping and Particle Analysis Techniques to Quantify Intracellular Ca2+ Signaling In Situ

Published on: January 7, 2019

9.4K

A study of quantitative indicators for slice sorting in cine-mode 4DCT.

Changhwan Kim1, Hojae Kim2, Sung-Woo Kim3

  • 1Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea.

Plos One
|August 26, 2022
PubMed
Summary

This study introduces a new method to reduce motion artifacts in four-dimensional computed tomography (4DCT) scans, improving radiotherapy quality. The novel 4DCT sorting strategy enhances accuracy by quantifying and addressing residual motion artifacts (RMA).

More Related Videos

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration
05:05

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Published on: November 23, 2019

8.1K
Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging
11:13

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging

Published on: May 24, 2021

6.5K

Related Experiment Videos

Last Updated: Aug 30, 2025

Applications of Spatio-temporal Mapping and Particle Analysis Techniques to Quantify Intracellular Ca2+ Signaling In Situ
09:34

Applications of Spatio-temporal Mapping and Particle Analysis Techniques to Quantify Intracellular Ca2+ Signaling In Situ

Published on: January 7, 2019

9.4K
Four-Dimensional CT Analysis Using Sequential 3D-3D Registration
05:05

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Published on: November 23, 2019

8.1K
Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging
11:13

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging

Published on: May 24, 2021

6.5K

Area of Science:

  • Medical Imaging
  • Radiotherapy Physics
  • Image Processing

Background:

  • Four-dimensional computed tomography (4DCT) is crucial for radiotherapy planning.
  • Irregular breathing patterns cause residual motion artifacts (RMA) in 4DCT, degrading image quality and treatment accuracy.
  • Current 4DCT sorting methods may not adequately address RMA.

Purpose of the Study:

  • To quantify and reduce uncertainties caused by RMA in 4DCT.
  • To compare quantitative indicators for assessing RMA.
  • To propose and evaluate a novel 4DCT sorting method that integrates amplitude information and quantitative RMA metrics without disrupting clinical workflow.

Main Methods:

  • Comparative analysis of quantitative indicators for RMA.
  • Development and implementation of a new 4DCT sorting strategy incorporating external surrogate amplitude and RMA metrics.
  • Evaluation using 10 breath-hold (BH) CT and 30 4DCT cases.
  • Validation against visual criteria-based manual sorting.

Main Results:

  • Normalized root-mean-square-deviation (N-RMSD) was identified as the most suitable quantitative indicator for RMA, aligning with visual assessment standards.
  • The proposed 4DCT sorting method demonstrated an 18.8% average improvement in N-RMSD compared to the default phase sorting method.
  • The new method effectively reduces 4DCT uncertainties originating from respiratory motion.

Conclusions:

  • N-RMSD is a reliable metric for quantifying RMA in 4DCT.
  • The proposed 4DCT sorting strategy offers a practical and effective approach to mitigate motion artifacts.
  • This study presents the first evaluation of RMA indicators and an improved 4DCT sorting strategy validated against manual sorting and clinical data.