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

9.6K
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...
9.6K
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

728
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...
728
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

1.2K
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
1.2K
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

581
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...
581

You might also read

Related Articles

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

Sort by
Same author

Image reconstruction from incomplete data via approximated pseudo-inverse and dual-domain coupled diffusion posterior sampling.

Quantitative imaging in medicine and surgery·2026
Same author

Detail preservation sparse-view CT image reconstruction via range-null space decomposition based diffusion priors.

Journal of X-ray science and technology·2026
Same author

An interpretable cascaded residual iterative network for sparse-view spectral CT imaging.

Quantitative imaging in medicine and surgery·2026
Same author

Visual language model-assisted CT denoising via text-guided diffusion and fidelity maintenance.

Journal of X-ray science and technology·2026
Same author

Accelerating direct material decomposition via diffusion probabilistic model for Sparse-view spectral computed tomography.

Journal of X-ray science and technology·2025
Same author

Visual language model-assisted spectral CT reconstruction by diffusion and low-rank priors from limited-angle measurements.

Physics in medicine and biology·2025

Related Experiment Video

Updated: Apr 8, 2026

Author Spotlight: Advancing 3D Modeling for Enhanced Diagnosis and Treatment of Pulmonary Nodules in Early-Stage Lung Cancer
07:53

Author Spotlight: Advancing 3D Modeling for Enhanced Diagnosis and Treatment of Pulmonary Nodules in Early-Stage Lung Cancer

Published on: October 13, 2023

2.2K

NUFFT-Based Iterative Image Reconstruction via Alternating Direction Total Variation Minimization for Sparse-View CT.

Bin Yan1, Zhao Jin1, Hanming Zhang1

  • 1China National Digital Switching System Engineering and Technological Research Center, Zhengzhou 450002, China.

Computational and Mathematical Methods in Medicine
|June 30, 2015
PubMed
Summary

This study introduces a novel Fourier-based iterative reconstruction technique for sparse-view X-ray computed tomography (CT). The method enhances image quality and computational efficiency, reducing radiation dose in CT scans.

More Related Videos

Author Spotlight: Enhanced Quantification of Cardiovascular Calcification Progression for Longitudinal Micro PET/CT Studies in Small Research Animals
08:02

Author Spotlight: Enhanced Quantification of Cardiovascular Calcification Progression for Longitudinal Micro PET/CT Studies in Small Research Animals

Published on: November 15, 2024

1.1K
Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph
05:32

Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph

Published on: February 21, 2025

783

Related Experiment Videos

Last Updated: Apr 8, 2026

Author Spotlight: Advancing 3D Modeling for Enhanced Diagnosis and Treatment of Pulmonary Nodules in Early-Stage Lung Cancer
07:53

Author Spotlight: Advancing 3D Modeling for Enhanced Diagnosis and Treatment of Pulmonary Nodules in Early-Stage Lung Cancer

Published on: October 13, 2023

2.2K
Author Spotlight: Enhanced Quantification of Cardiovascular Calcification Progression for Longitudinal Micro PET/CT Studies in Small Research Animals
08:02

Author Spotlight: Enhanced Quantification of Cardiovascular Calcification Progression for Longitudinal Micro PET/CT Studies in Small Research Animals

Published on: November 15, 2024

1.1K
Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph
05:32

Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph

Published on: February 21, 2025

783

Area of Science:

  • Medical Imaging
  • Computational Imaging
  • Radiology

Background:

  • Sparse-view computed tomography (CT) reduces radiation dose but poses reconstruction challenges.
  • Conventional iterative algorithms for CT image reconstruction suffer from low efficiency and high computational demands.

Purpose of the Study:

  • To develop a novel, efficient, and high-quality reconstruction algorithm for sparse-view CT.
  • To address the limitations of existing spatial iterative reconstruction techniques.

Main Methods:

  • A Fourier-based iterative reconstruction technique utilizing nonuniform fast Fourier transform (NFFT) was developed.
  • Total Variation (TV) regularization and the alternating direction method were integrated for improved performance.

Main Results:

  • The proposed method demonstrated superior computational efficiency and rapid convergence compared to conventional algorithms.
  • Numerical simulations and real data experiments on a parallel beam CT validated the enhanced reconstruction quality.
  • The technique outperformed simultaneous algebraic reconstruction technique (SART) and alternating direction total variation minimization (ADTV) in reconstruction quality within the same time frame.

Conclusions:

  • The novel Fourier-based iterative method offers a significant improvement for sparse-view CT reconstruction.
  • The technique provides a promising solution for reducing radiation dose in X-ray CT imaging with extensive applications.