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

9.0K
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...
9.0K
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

424
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...
424

You might also read

Related Articles

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

Sort by
Same author

Mechanisms involved in ceramide-induced cell cycle arrest in human hepatocarcinoma cells.

World journal of gastroenterology·2007
Same author

A population-based survey of women's traditional postpartum behaviours in Northern China.

Midwifery·2007
Same author

A glimpse of streptococcal toxic shock syndrome from comparative genomics of S. suis 2 Chinese isolates.

PloS one·2007
Same author

Colon carcinoma cells harboring PIK3CA mutations display resistance to growth factor deprivation induced apoptosis.

Molecular cancer therapeutics·2007
Same author

[Surgical treatment of 402 consecutive cases for hilar cholangiocarcinoma: Chinese single center experience].

Zhonghua wai ke za zhi [Chinese journal of surgery]·2007
Same author

Highly convergent route to cyclopeptide alkaloids: total synthesis of ziziphine N.

Organic letters·2007

Related Experiment Video

Updated: Feb 17, 2026

Outer-Boundary Assisted Segmentation and Quantification of Trabecular Bones by an Imagej Plugin
09:36

Outer-Boundary Assisted Segmentation and Quantification of Trabecular Bones by an Imagej Plugin

Published on: March 14, 2018

9.8K

Low-Dose CBCT Reconstruction Using Hessian Schatten Penalties.

Liang Liu, Xinxin Li, Kai Xiang

    IEEE Transactions on Medical Imaging
    |December 2, 2017
    PubMed
    Summary

    New Hessian Schatten (HS) penalties improve cone-beam computed tomography (CBCT) image reconstruction by reducing noise and eliminating the staircase effect seen with total variation (TV) penalties.

    More Related Videos

    Author Spotlight: Advancing CBCT and Digital Dental Image Integration with AI-Assisted Digitization
    05:49

    Author Spotlight: Advancing CBCT and Digital Dental Image Integration with AI-Assisted Digitization

    Published on: February 23, 2024

    1.6K
    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

    743

    Related Experiment Videos

    Last Updated: Feb 17, 2026

    Outer-Boundary Assisted Segmentation and Quantification of Trabecular Bones by an Imagej Plugin
    09:36

    Outer-Boundary Assisted Segmentation and Quantification of Trabecular Bones by an Imagej Plugin

    Published on: March 14, 2018

    9.8K
    Author Spotlight: Advancing CBCT and Digital Dental Image Integration with AI-Assisted Digitization
    05:49

    Author Spotlight: Advancing CBCT and Digital Dental Image Integration with AI-Assisted Digitization

    Published on: February 23, 2024

    1.6K
    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

    743

    Area of Science:

    • Medical Physics
    • Image Processing
    • Radiotherapy Technology

    Background:

    • Cone-beam computed tomography (CBCT) is crucial for accurate patient setup and target localization in radiation therapy.
    • High-quality CBCT reconstruction is essential for effective treatment delivery.
    • Total Variation (TV) penalties, while effective for noise reduction and edge preservation, can introduce staircase artifacts.

    Purpose of the Study:

    • To introduce and evaluate a novel family of Hessian Schatten (HS) penalties for CBCT image reconstruction.
    • To address the limitations of TV penalties, specifically the staircase effect.
    • To compare the performance of different orders of convex HS penalties in CBCT reconstruction.

    Main Methods:

    • Development and application of Hessian Schatten (HS) penalties, utilizing second-order derivatives to capture smooth intensity transitions.
    • Implementation of a majorization-minimization approach with a primal-dual formulation for optimization.
    • Comparative analysis of HS penalties (orders 1, 2) against traditional TV penalties using digital and physical phantoms.

    Main Results:

    • HS penalties effectively suppress the staircase effect in CBCT reconstruction, outperforming TV penalties.
    • The HS penalty with order 1 demonstrated superior performance among the tested HS penalties.
    • Experiments validated the proposed penalty family's ability to enhance image quality without staircase artifacts.

    Conclusions:

    • Hessian Schatten penalties offer a promising alternative for CBCT image reconstruction, mitigating staircase artifacts.
    • The HS penalty of order 1 is particularly effective for improving CBCT image quality in radiation therapy.
    • This work advances image reconstruction techniques for more precise radiation therapy applications.