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 Experiment Videos

Modification of grey scale in computer tomographic images

A Hemmingsson, B Jung

    Acta Radiologica: Diagnosis
    |January 1, 1980
    PubMed
    Summary

    New grayscale modification techniques enhance computed tomography (CT) image display by improving the perception of subtle attenuation differences. These methods prevent image structure loss in black or white areas for better diagnostic accuracy.

    Related Concept Videos

    You might also read

    Related Articles

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

    Sort by
    Same author

    Brain Charts for the Rhesus Macaque Lifespan.

    bioRxiv : the preprint server for biology·2024
    Same author

    Systemic Activin Is Elevated in Patients With Severe Alcoholic Hepatitis.

    Gastro hep advances·2022
    Same author

    [Successful rituximab treatment of recurrent glomerulonephritis associated with antibodies against the glomerular basement membrane].

    Der Internist·2020
    Same author

    Effects of lysophospholipid supplementation to reduced energy, crude protein, and amino acid diets on growth performance, nutrient digestibility, and blood profiles in broiler chickens.

    Poultry science·2019
    Same author

    Effects of lysophospholipid on growth performance, carcass yield, intestinal development, and bone quality in broilers.

    Poultry science·2019
    Same author

    Adgrf5 contributes to patterning of the endothelial deep layer in retina.

    Angiogenesis·2019

    Area of Science:

    • Medical Imaging
    • Radiology
    • Image Processing

    Background:

    • Standard computed tomography (CT) imaging often necessitates narrow display window settings.
    • These narrow settings lead to loss of image structure in areas of extreme attenuation, appearing as black or white.
    • This limits the optimal perception of diagnostically relevant, subtle attenuation differences.

    Purpose of the Study:

    • To introduce and evaluate novel grayscale modification techniques for improved CT image display.
    • To enhance the visibility of subtle attenuation differences without sacrificing image structure.
    • To overcome the limitations of conventional narrow window settings in CT imaging.

    Main Methods:

    • Two principles of grayscale modification were developed and presented.
    • Method 1: Pixels within a selectable attenuation band are displayed unchanged; pixels outside the band are shifted towards the band's limits.
    • Method 2: The grayscale is adjusted to ensure a constant number of pixels per defined grayscale interval.

    Main Results:

    • Both presented methods aim to improve display characteristics of CT images.
    • The techniques are designed to preserve or enhance structure in areas that would otherwise appear completely black or white.
    • This facilitates better perception of minute, relevant attenuation differences critical for diagnosis.

    Conclusions:

    • The proposed grayscale modification techniques offer improved display characteristics for CT images.
    • These methods address the issue of structure loss in conventional display settings.
    • Enhanced perception of subtle attenuation differences can lead to improved diagnostic accuracy in CT scans.

    Related Experiment Videos