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 Video

Updated: Jul 3, 2026

Multimodal Cross-Device and Marker-Free Co-Registration of Preclinical Imaging Modalities
07:13

Multimodal Cross-Device and Marker-Free Co-Registration of Preclinical Imaging Modalities

Published on: October 27, 2023

Modulation transfer function-based assessment of temporal resolution: validation for single- and dual-source CT.

Dirk Ertel1, Evelyn Kröber, Yiannis Kyriakou

  • 1Institute of Medical Physics, University of Erlangen-Nürnberg, Henkestrasse 91, 91052 Erlangen, Germany.

Radiology
|July 18, 2008
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

Comparison of a contrast-to-noise ratio-driven exposure control and a regular detector dose-driven exposure control in abdominal imaging in a clinical angiography system.

Medical physics·2021
Same author

Impact of a contrast-to-noise ratio driven and material specific exposure control on image quality and radiation exposure in angiography.

Physics in medicine and biology·2021
Same author

Investigation of spectral performance for single-scan contrast-enhanced breast CT using photon-counting technology: A phantom study.

Medical physics·2020
Same author

Dedicated Breast Computed Tomography With a Photon-Counting Detector: Initial Results of Clinical In Vivo Imaging.

Investigative radiology·2019
Same author

Metal Artifact Reduction in X-ray Computed Tomography Using Computer-Aided Design Data of Implants as Prior Information.

Investigative radiology·2017
Same author

Securing safe and informative thoracic CT examinations-Progress of radiation dose reduction techniques.

European journal of radiology·2016
Same journal

Noncontrast Abbreviated MRI for Post-TACE Treatment Response Monitoring of Hepatocellular Carcinoma Based on Ancillary Features from LI-RADS.

Radiology·2026
Same journal

Response Evaluation Criteria in Bone Metastases: Performance and Association of Response Classifications with Survival Outcomes.

Radiology·2026
Same journal

Entropy for Prediction of MACEs in Myocarditis: A Cardiac MRI-based Biomarker of Myocardial Tissue Heterogeneity.

Radiology·2026
Same journal

AI for Radiology: A Primer Part II. Interacting with AI Results.

Radiology·2026
Same journal

Hyperdense Capsule Sign at Noncontrast CT as an Indication for Middle Meningeal Artery Embolization for Nonacute Subdural Hematomas: A MAGIC-MT Trial Post Hoc Analysis.

Radiology·2026
Same journal

Sawtooth Cardiomyopathy: The Tiger Heart.

Radiology·2026
See all related articles

A novel robot-based method objectively measures cardiac CT temporal resolution. This quality assurance tool quantifies motion artifacts, aiding scanner comparisons and protocol optimization.

Area of Science:

  • Medical Imaging
  • Radiology
  • Biomedical Engineering

Background:

  • Temporal resolution is critical for cardiac computed tomography (CT) imaging quality.
  • Assessing temporal resolution across different CT scanners and protocols can be challenging.
  • Existing methods may lack manufacturer independence or objective quantification.

Purpose of the Study:

  • To develop and validate a manufacturer-independent quality assurance measurement for temporal resolution in cardiac CT.
  • To utilize a three-dimensional cardiac motion robot for objective assessment.
  • To compare single-source (SS) CT and dual-source (DS) CT performance.

Main Methods:

  • A 3D cardiac motion robot was employed to simulate heart motion.
  • Image contrast-based modulation transfer function (MTF) was assessed over time.

More Related Videos

Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers
12:24

Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers

Published on: July 17, 2012

Related Experiment Videos

Last Updated: Jul 3, 2026

Multimodal Cross-Device and Marker-Free Co-Registration of Preclinical Imaging Modalities
07:13

Multimodal Cross-Device and Marker-Free Co-Registration of Preclinical Imaging Modalities

Published on: October 27, 2023

Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers
12:24

Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers

Published on: July 17, 2012

  • Standard cardiac CT protocols were used for image acquisition.
  • The impact of manufacturer-specific algorithms and scanner parameters was evaluated.

    • Main Results:

    • MTF decreased with increasing heart rate (motion frequency).
    • At 120 beats per minute, MTF decreased by 50% for SS CT and 18% for DS CT.
    • The robot-based approach demonstrated reproducibility and objectivity.
    • Quantified effects of adaptive algorithms and resonance phenomena were observed.

    Conclusions:

    • The robot-based method provides a reproducible and objective measure of temporal resolution.
    • This approach facilitates practical measurement and comparison of CT scanners and protocols.
    • The findings highlight the impact of heart rate on cardiac CT image quality and the need for robust QA.