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

Sources of Self-Esteem II: Performance Feedback01:24

Sources of Self-Esteem II: Performance Feedback

191
Self-esteem is intricately tied to our perception of competence and our ability to exert control over our lives. One of the primary sources of this perception is performance feedback — the ongoing evaluation of our actions in terms of success and failure. According to Franks and Marolla (1976), people derive self-worth from experiencing themselves as causal agents, capable of achieving goals and overcoming obstacles. This process nurtures a critical component of self-esteem:...
191
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

368
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...
368
Computed Tomography01:10

Computed Tomography

8.3K
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...
8.3K
Sinusoidal Sources01:18

Sinusoidal Sources

1.2K
Direct current (DC) refers to an electric current that flows in a single direction, maintaining a constant polarity. This is in contrast to alternating current (AC), which periodically changes its direction and magnitude. AC forms the backbone of modern electricity transmission and distribution systems due to its efficient long-distance transmission capabilities.
In homes, the power supplies use sinusoidal sources to provide electricity. These sources generate a voltage that varies sinusoidally...
1.2K
AC Sources01:20

AC Sources

4.1K
Direct current is a flow of electric charge in only one direction and has a steady state of constant voltage in the circuit. Rectifiers, batteries, commutator-equipped generators, and fuel cells are some examples of devices that generate direct current. Nowadays, most applications use a time-varying voltage source. Alternating current is a flow of electric charge that periodically reverses direction. An alternating current is produced by an alternating emf that is generated in a power plant. If...
4.1K
Sources of Law01:26

Sources of Law

1.9K
Laws form the essential rules set by governing authorities to shape and control societal behavior. In nursing, laws guide actions, safeguard patient rights, define nurses' scope of practice, and maintain professional standards. Understanding the legal framework governing nursing involves recognizing four primary sources of law: constitutional, statutory, administrative (regulatory), and common law.
Constitutional law is foundational, deriving from federal and state constitutions, and...
1.9K

You might also read

Related Articles

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

Sort by
Same author

Feasibility and SNR Performance of Hyperpolarized <sup>129</sup>Xe Gas Exchange Imaging Using a Balanced SSFP Sequence.

Magnetic resonance in medicine·2026
Same author

MRI Quality and Reader Experience in Organized Prostate Cancer Screening: Insights from the PROBASE Trial.

European urology oncology·2026
Same author

Boiling-induced susceptibility artifact correction for clinical 3D PRFS thermometry in hepatic microwave ablation.

International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group·2026
Same author

Phase-resolved functional lung MRI detects single-dose and sustained bronchodilator responses in COPD in a randomized crossover trial.

European radiology·2026
Same author

A Magnetic Resonance Fingerprinting Approach for Simultaneous <math><mrow><msub><mi>T</mi> <mn>1</mn></msub></mrow></math> - and PRFS-Based 3D MR-Thermometry.

Magnetic resonance in medicine·2026
Same author

Comparison of phase-resolved functional lung (PREFUL) MRI and CT parametric response mapping (PRM) in COSYCONET COPD.

European radiology·2026
Same journal

Development and Validation of an Interpretable Model Integrating Radiomics and Clinical Data for Predicting 70-gene Signature Risk in Breast Cancer: A Multicenter Study.

Academic radiology·2026
Same journal

AI-Based Longitudinal Scoliosis Monitoring on EOS Whole-Spine Radiographs in a Pediatric to Young Adult Cohort.

Academic radiology·2026
Same journal

Energy Conservation in MRI: Sequence Selection and Operational Strategies.

Academic radiology·2026
Same journal

Improving Reliability of MRI Lumbar Spinal Stenosis Assessment Across Radiology and Spine Specialties: Impact of a Structured Education Intervention.

Academic radiology·2026
Same journal

Advances in CT and MRI for Yttrium-90 Radioembolization of Hepatocellular Carcinoma.

Academic radiology·2026
Same journal

Homogeneity of Liver Fat Distribution Serves as a Diagnostic Marker for Metabolic Dysfunction-Associated Steatohepatitis.

Academic radiology·2026
See all related articles

Related Experiment Video

Updated: Feb 2, 2026

Dorsal Column Steerability with Dual Parallel Leads using Dedicated Power Sources: A Computational Model
11:19

Dorsal Column Steerability with Dual Parallel Leads using Dedicated Power Sources: A Computational Model

Published on: February 10, 2011

12.3K

Image Quality Performance of Virtual Single-Source CT Using Dual-Source Computed Tomography.

Babak Alikhani1, Martin Werner2, Leila Jamali3

  • 1Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany; Center for Radiology and Nuclear Medicine, DIAKOVERE gGmbH, Hannover, Germany.

Academic Radiology
|November 29, 2018
PubMed
Summary
This summary is machine-generated.

Dual-source CT scanning improves image quality by reducing noise and enhancing contrast-to-noise ratio (CNR) compared to single-source CT. This dual-source approach allows for dose splitting without compromising spatial resolution or structural similarity index (SSIM).

Keywords:
CTDose splittingDual-source CTImage qualityIterative reconstruction

More Related Videos

An Open-Source Virtual Reality System for the Measurement of Spatial Learning in Head-Restrained Mice
08:59

An Open-Source Virtual Reality System for the Measurement of Spatial Learning in Head-Restrained Mice

Published on: March 3, 2023

2.8K
How to Detect Amygdala Activity with Magnetoencephalography using Source Imaging
10:48

How to Detect Amygdala Activity with Magnetoencephalography using Source Imaging

Published on: June 3, 2013

22.8K

Related Experiment Videos

Last Updated: Feb 2, 2026

Dorsal Column Steerability with Dual Parallel Leads using Dedicated Power Sources: A Computational Model
11:19

Dorsal Column Steerability with Dual Parallel Leads using Dedicated Power Sources: A Computational Model

Published on: February 10, 2011

12.3K
An Open-Source Virtual Reality System for the Measurement of Spatial Learning in Head-Restrained Mice
08:59

An Open-Source Virtual Reality System for the Measurement of Spatial Learning in Head-Restrained Mice

Published on: March 3, 2023

2.8K
How to Detect Amygdala Activity with Magnetoencephalography using Source Imaging
10:48

How to Detect Amygdala Activity with Magnetoencephalography using Source Imaging

Published on: June 3, 2013

22.8K

Area of Science:

  • Medical Imaging
  • Radiology
  • Computed Tomography

Background:

  • Dual-source (DS) computed tomography (CT) utilizes two X-ray tubes, offering potential advantages over single-source (SS) CT.
  • Evaluating image quality and dose splitting methods is crucial for optimizing DS CT protocols.

Purpose of the Study:

  • To analyze and compare image quality between DS and SS CT datasets at equivalent radiation exposure levels.
  • To evaluate a dose splitting method for DS CT scanning protocols.

Main Methods:

  • A phantom was scanned using a 192-slice DS CT scanner at various kVp settings and tube current-time products.
  • DS datasets were acquired with different tube current ratios (50%-90%) and reconstructed using filtered back projection and iterative reconstruction (ADMIRE).
  • Image quality was assessed based on noise, CNR, SSIM, and spatial resolution.

Main Results:

  • DS mode demonstrated reduced image noise and improved CNR compared to SS mode.
  • Structural similarity index (SSIM) remained consistent between DS and SS modes.
  • A slight, less than 5%, reduction in spatial resolution was observed in DS mode.

Conclusions:

  • DS CT protocols offer comparable SSIM and spatial resolution to SS CT.
  • DS CT provides improved noise reduction and CNR, enabling effective radiation dose splitting.
  • DS CT allows for dose reduction without significant loss of image quality.