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

Dose descriptors for computed tomography

J J Spokas

    Medical Physics
    |March 1, 1982
    PubMed
    Summary

    A new computed tomography dosimetry index, the equivalent rectangular width, is proposed to better describe dose spread. This method offers a simpler way to measure imaging performance and dose distribution in CT scans.

    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

    A conducting plastic simulating brain tissue.

    Medical physics·2000
    Same author

    Comments on: "Absorbed Dose Comparison Among Commercial Ionization Chambers in Polystyrene and Acrylic Phantoms".

    Medical physics·1989
    Same author

    A conducting plastic simulating cortical bone.

    Physics in medicine and biology·1982
    Same author

    Investigation of cables for ionization chambers.

    Medical physics·1980
    Same author

    Composition of A-150 tissue-equivalent plastic.

    Medical physics·1977
    Same author

    Symposium on the Jesse effect and related phenomena. Tributes to William P. Jesse.

    Radiation research·1974

    Area of Science:

    • Medical Physics
    • Radiological Imaging

    Background:

    • The computed tomography dosimetry index (CTDI) has limitations in fully describing dose distribution.
    • Accurate dosimetry is crucial for patient safety in CT imaging.

    Purpose of the Study:

    • To address the weakness in the current computed tomography dosimetry index.
    • To propose an alternative descriptor for CT dose that better reflects spatial spread.
    • To introduce a performance measure for CT imaging.

    Main Methods:

    • Discussed limitations of the computed tomography dosimetry index.
    • Proposed the equivalent rectangular width as an alternate dose descriptor.
    • Derived the equivalent rectangular width from customary dose measurements.
    • Suggested a performance measure comparing imaged volume to dose-receiving volume.

    Main Results:

    • The equivalent rectangular width conveniently expresses the spatial spread of dose.
    • The proposed descriptor is simply derived from customary dose measurements.
    • A performance measure for CT was suggested.

    Conclusions:

    • The equivalent rectangular width offers an improved method for characterizing CT dose distribution.
    • The proposed performance measure aids in evaluating CT imaging efficiency.
    • These advancements contribute to more accurate and safer CT dosimetry.

    Related Experiment Videos