Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Computed Tomography

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: CT

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 Tomography

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 I: CT and MRI

Imaging Studies I: CT and MRI

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...

You might also read

Related Articles

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

Sort by

Same author

Monte Carlo simulation and unfolding of an extended Bonner sphere system for secondary neutron spectrometry in proton therapy facilities using conventional BSS experimental data.

Frontiers in oncology·2026

Same author

Patient-specific organ dose calculation using automatic segmentation and extension of CT scans.

Radiation physics and chemistry (Oxford, England : 1993)·2025

Same author

Application of NEMA protocols to verify GATE models based on the Digital Biograph Vision and the Biograph Vision Quadra scanners.

Zeitschrift fur medizinische Physik·2024

Same author

Variability of coil inductance measurements inside an interleaving structure.

Scientific reports·2022

Same author

Toolkit implementation to exchange phase-space files between IAEA and MCNP6 monte Carlo code format.

International journal of radiation biology·2022

Same author

High-performance reconstruction of CT medical images by using out-of-core methods in GPU.

Computer methods and programs in biomedicine·2022

Search research articles

Related Experiment Video

Updated: May 14, 2026

Simultaneous Brightfield, Fluorescence, and Optical Coherence Tomographic Imaging of Contracting Cardiac Trabeculae Ex Vivo

Simultaneous Brightfield, Fluorescence, and Optical Coherence Tomographic Imaging of Contracting Cardiac Trabeculae Ex Vivo

Published on: October 2, 2021

Fast parallel algorithm for CT image reconstruction.

Liubov A Flores¹, Vicent Vidal, Patricia Mayo

¹Departamento de Sistemas Informáticos y Computación, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022, Valencia, Spain. liuflo@posgrado.upv.es

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|February 1, 2013

Summary

Iterative X-ray computed tomography (CT) image reconstruction offers high precision, especially for portable scanners. This study analyzes parallel reconstruction using the Portable Extensive Toolkit for Scientific Computation (PETSc) to address computational costs.

More Related Videos

Human Brown Adipose Tissue Depots Automatically Segmented by Positron Emission Tomography/Computed Tomography and Registered Magnetic Resonance Images

Human Brown Adipose Tissue Depots Automatically Segmented by Positron Emission Tomography/Computed Tomography and Registered Magnetic Resonance Images

Published on: February 18, 2015

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

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

Published on: February 21, 2025

Related Experiment Videos

Last Updated: May 14, 2026

Simultaneous Brightfield, Fluorescence, and Optical Coherence Tomographic Imaging of Contracting Cardiac Trabeculae Ex Vivo

Simultaneous Brightfield, Fluorescence, and Optical Coherence Tomographic Imaging of Contracting Cardiac Trabeculae Ex Vivo

Published on: October 2, 2021

Human Brown Adipose Tissue Depots Automatically Segmented by Positron Emission Tomography/Computed Tomography and Registered Magnetic Resonance Images

Human Brown Adipose Tissue Depots Automatically Segmented by Positron Emission Tomography/Computed Tomography and Registered Magnetic Resonance Images

Published on: February 18, 2015

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

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

Published on: February 21, 2025

Area of Science:

Medical Imaging
Computational Science
Image Reconstruction

Background:

X-ray computed tomography (CT) generates images of internal structures using projection data.
Iterative reconstruction methods excel in high-contrast, noisy conditions with limited projections, crucial for portable CT scanners.
High computational cost currently limits the practical application of iterative CT reconstruction techniques.

Purpose of the Study:

To analyze the implementation of iterative parallel image reconstruction for X-ray CT.
To investigate the use of the Portable Extensive Toolkit for Scientific Computation (PETSc) for optimizing iterative CT reconstruction.

Main Methods:

Implementation of iterative parallel image reconstruction algorithms.
Utilizing the Portable Extensive Toolkit for Scientific Computation (PETSc) for computational efficiency.
Analysis of reconstruction performance under various conditions.

Main Results:

Demonstrated the feasibility of iterative parallel image reconstruction using PETSc.
Identified performance characteristics and potential bottlenecks.
Provided insights into optimizing iterative reconstruction for practical use.

Conclusions:

Iterative parallel reconstruction with PETSc is a viable approach to address computational challenges in X-ray CT.
This method holds promise for enhancing the utility of portable CT scanners, particularly in emergency settings.
Further optimization and validation are recommended for widespread adoption.