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

Rapid, rigorous computation of modulation transfer function on a pocket calculator

Ronai tpm, D L kirch

    Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine
    |June 1, 1977
    PubMed
    Summary

    A pocket calculator can accurately compute the modulation transfer function (MTF) of scintillation detectors. This method enables nuclear medicine labs without computers to perform quality assurance using the line spread function (LSF).

    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

    Abdominal organ segmentation using texture transforms and a Hopfield neural network.

    IEEE transactions on medical imaging·1999
    Same author

    A new method for the correction of gamma camera nonuniformity due to spatial distortion.

    Physics in medicine and biology·1996
    Same author

    Augmentation of mortality risk discriminating power of left ventricular ejection fraction by measures of nonuniformity in systolic emptying on radionuclide ventriculography.

    Journal of the American College of Cardiology·1990
    Same author

    Left ventricular platelet deposition after acute myocardial infarction. An attempt at quantification using blood pool subtracted indium-111 platelet scintigraphy.

    British heart journal·1984
    Same author

    Quality control of scintillation cameras using a minicomputer.

    Journal of nuclear medicine : official publication, Society of Nuclear Medicine·1981
    Same author

    Seven-pinhole tomography--a technical description.

    Journal of nuclear medicine : official publication, Society of Nuclear Medicine·1981

    Area of Science:

    • Medical Imaging
    • Nuclear Medicine Technology
    • Quality Assurance in Healthcare

    Background:

    • The modulation transfer function (MTF) is crucial for assessing imaging system performance.
    • Access to computational tools can be a barrier for some nuclear medicine laboratories.
    • Quality assurance programs require reliable methods for evaluating detector performance.

    Purpose of the Study:

    • To present a method for calculating the MTF of collimated scintillation detectors using a programmable pocket calculator.
    • To enable nuclear medicine laboratories without computer access to perform MTF studies.
    • To validate the accuracy and efficiency of the pocket calculator method compared to a minicomputer.

    Main Methods:

    • Recording the line spread function (LSF) using an Anger camera and multichannel analyzer (MCA).

    Related Experiment Videos

  • Calculating the MTF via a normalized discrete Fourier transform (DFT) of the LSF, including real and imaginary terms.
  • Performing calculations independently of a computer using a programmable pocket calculator.

    • Main Results:

    • The pocket calculator method provides rigorous MTF calculations.
    • The pocket calculator approach allows for independent MTF studies in labs lacking computer access.
    • The calculator's accuracy was comparable to, and slightly better than, a PDP-12 minicomputer due to fewer round-off errors.

    Conclusions:

    • A pocket calculator is a viable and accurate tool for MTF calculation in nuclear medicine.
    • This method enhances quality assurance capabilities in resource-limited laboratories.
    • The pocket calculator offers a practical alternative for routine MTF analysis.