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

7.6K
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...
7.6K
Positron Emission Tomography01:29

Positron Emission Tomography

6.2K
Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
6.2K
Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

853
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
853
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

671
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...
671
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

973
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...
973
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

893
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...
893

You might also read

Related Articles

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

Sort by
Same author

Comparative muscle proteomics/phosphoproteomics analysis provides new insight for the biosafety evaluation of fat-1 transgenic cattle.

Transgenic research·2017
Same author

Soluble urokinase-type plasminogen activator receptor and urokinase-type plasminogen activator receptor contribute to chemoresistance in leukemia.

Oncology letters·2017
Same author

Insights into the function of n-3 PUFAs in <i>fat-1</i> transgenic cattle.

Journal of lipid research·2017
Same author

Assessing Spatial and Temporal Patterns of Observed Ground-level Ozone in China.

Scientific reports·2017
Same author

Diosgenin glucoside provides neuroprotection by regulating microglial M1 polarization.

International immunopharmacology·2017
Same author

Effective Adsorption and Removal of Phosphate from Aqueous Solutions and Eutrophic Water by Fe-based MOFs of MIL-101.

Scientific reports·2017

Related Experiment Video

Updated: May 2, 2026

3D Imaging of Soft-Tissue Samples using an X-ray Specific Staining Method and Nanoscopic Computed Tomography
07:01

3D Imaging of Soft-Tissue Samples using an X-ray Specific Staining Method and Nanoscopic Computed Tomography

Published on: October 24, 2019

10.2K

[An improved prior image constrained compressed sensing reconstruction for low-dose computed tomography].

Hong Guo1, Zhaoying Bian, Jing Huang

  • 1Department of Radiology, General Hospital, Tianjin Medical University, Tianjin 300052, China.E-mail: guohong99@163.com.

Nan Fang Yi Ke Da Xue Xue Bao = Journal of Southern Medical University
|November 26, 2013
PubMed
Summary

This study introduces an improved prior image constrained compressed sensing (PICCS) method for low-dose computed tomography (CT) reconstruction. The enhanced PICCS approach effectively reduces radiation dose while preserving image quality and details.

More Related Videos

Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans
12:32

Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans

Published on: September 27, 2020

9.3K
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

747

Related Experiment Videos

Last Updated: May 2, 2026

3D Imaging of Soft-Tissue Samples using an X-ray Specific Staining Method and Nanoscopic Computed Tomography
07:01

3D Imaging of Soft-Tissue Samples using an X-ray Specific Staining Method and Nanoscopic Computed Tomography

Published on: October 24, 2019

10.2K
Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans
12:32

Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans

Published on: September 27, 2020

9.3K
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

747

Area of Science:

  • Medical Imaging
  • Image Reconstruction
  • Radiological Physics

Background:

  • Low-dose computed tomography (CT) is crucial for minimizing patient radiation exposure.
  • Developing effective reconstruction algorithms is essential for maintaining diagnostic image quality at reduced doses.
  • Prior image constrained compressed sensing (PICCS) is a promising technique for dose reduction.

Purpose of the Study:

  • To propose and evaluate an improved prior image constrained compressed sensing (PICCS) reconstruction approach for low-dose X-ray CT.
  • To enhance noise-induced artifact suppression and edge detail preservation in low-dose CT images.
  • To demonstrate the effectiveness of the proposed method for radiation dose reduction.

Main Methods:

  • A penalized weighted least-squares approach was used for sinogram data restoration.
  • Filtered back-projection (FBP) was applied to the restored sinogram data for initial image reconstruction.
  • The FBP image served as the prior image for the improved PICCS reconstruction algorithm.
  • Computer simulations were employed for qualitative and quantitative evaluations.

Main Results:

  • The improved PICCS approach demonstrated significant gains over the original PICCS method.
  • Noticeable improvements were observed in noise-induced artifact suppression.
  • Enhanced preservation of edge details was achieved in the reconstructed low-dose CT images.
  • The method proved effective for radiation dose reduction.

Conclusions:

  • The proposed improved PICCS reconstruction method offers superior performance for low-dose CT.
  • This approach effectively balances radiation dose reduction with high-quality image reconstruction.
  • The findings support the clinical utility of advanced reconstruction techniques for safer medical imaging.