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

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...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...

You might also read

Related Articles

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

Sort by
Same author

Outcomes by cardiovascular magnetic resonance in patients with clinically suspected myocardial inflammation.

The international journal of cardiovascular imaging·2026
Same author

Myocardial strain shows modest diagnostic yield but may aid identification of patients with a low likelihood of ischemia during vasodilator stress cardiac magnetic resonance.

Clinical research in cardiology : official journal of the German Cardiac Society·2026
Same author

Manual long axis strain compared to automated feature-tracking deformation imaging for identification of masked left heart involvement in pulmonary hypertension.

The international journal of cardiovascular imaging·2026
Same author

Atrial fibrillation is linked to increased left ventricular fibrosis and inflammation measured by CMR with prognostic implications.

The international journal of cardiovascular imaging·2026
Same author

Calculation of pulmonary capillary wedge pressure including left atrial function is superior to morphology alone and accurately identifies elevated filling pressures in left heart disease.

Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance·2025
Same author

Exercise-induced out-of-proportion increase in afterload and impaired right ventricular contractile reserve in HFpEF.

ESC heart failure·2025

Related Experiment Video

Updated: Jul 5, 2026

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
09:32

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging

Published on: December 9, 2021

Image quality on dual-source computed-tomographic coronary angiography.

Johannes Rixe1, Andreas Rolf, Guido Conradi

  • 1Department of Cardiology, Kerckhoff Heart Center, Benekestrasse 2 - 8, 61231, Bad Nauheim, Germany. j.rixe@kerckhoff-klinik.de

European Radiology
|April 18, 2008
PubMed
Summary

Dual-source computed tomography (DSCT) significantly improves coronary artery visualization, enabling diagnostic image quality even at higher heart rates. This advancement expands patient eligibility for non-invasive coronary angiography.

More Related Videos

Semi-Automatic Graphical Tool for Measuring Coronary Artery Spatially Weighted Calcium Score from Gated Cardiac Computed Tomography Images
06:57

Semi-Automatic Graphical Tool for Measuring Coronary Artery Spatially Weighted Calcium Score from Gated Cardiac Computed Tomography Images

Published on: September 22, 2023

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
04:40

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

Related Experiment Videos

Last Updated: Jul 5, 2026

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
09:32

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging

Published on: December 9, 2021

Semi-Automatic Graphical Tool for Measuring Coronary Artery Spatially Weighted Calcium Score from Gated Cardiac Computed Tomography Images
06:57

Semi-Automatic Graphical Tool for Measuring Coronary Artery Spatially Weighted Calcium Score from Gated Cardiac Computed Tomography Images

Published on: September 22, 2023

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
04:40

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

Area of Science:

  • Cardiovascular Imaging
  • Medical Imaging Technology

Background:

  • Multi-detector CT limitations for coronary artery visualization due to motion artifacts at heart rates >65 bpm.
  • Previous CT generations required low heart rates for optimal coronary imaging.

Purpose of the Study:

  • To assess dual-source computed tomography (DSCT) image quality for coronary arteries without heart rate control.
  • To determine the efficacy of DSCT in patients with elevated heart rates.

Main Methods:

  • DSCT performed on 165 consecutive patients (mean age 64 years).
  • Data reconstructed across cardiac cycle intervals (5% increments).
  • Image quality evaluated for coronary artery evaluability and artifacts using AHA 16-segment model.

Main Results:

  • 98.7% of 2,541 coronary segments visualized without artifacts at a mean heart rate of 65 bpm.
  • Diagnostic image quality achieved even at heart rates >65 bpm.
  • Optimal reconstruction at 65-70% of cardiac cycle; systolic reconstruction at 45% for rates >85 bpm.

Conclusions:

  • DSCT provides diagnostic image quality for non-invasive coronary angiography at heart rates >65 bpm.
  • DSCT broadens the patient population eligible for non-invasive coronary artery investigation.
  • DSCT overcomes limitations of earlier CT generations regarding heart rate dependency.