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

240 degrees: why not?

A S Hambye1, A Dobbeleir, E Stulens

  • 1Middelheim General Hospital Antwerp, Belgium.

Nuclear Medicine Communications
|July 1, 1996
PubMed
Summary
This summary is machine-generated.

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

Prediction of first test day milk yield using historical records in dairy cows.

Animal : an international journal of animal bioscience·2022
Same author

The use of planar bone scintigraphy and HiSPECT for diagnosis of primary and concomitant flexor enthesopathy in the canine elbow.

Veterinary and comparative orthopaedics and traumatology : V.C.O.T·2013
Same author

Amplitude-based data selection for optimal retrospective reconstruction in micro-SPECT.

Physics in medicine and biology·2013
Same author

The use of the HiSPECT bone scan in canine flexor enthesopathy and coronoid pathology.

Research in veterinary science·2013
Same author

High-resolution micro-SPECT to evaluate the regional brain perfusion in the adult Beagle dog.

Research in veterinary science·2012
Same author

Prevalence and incidence of dementia among 75-80-year-old community-dwelling elderly in different districts of Antwerp, Belgium: the Antwerp Cognition (ANCOG) Study.

Clinical neurology and neurosurgery·2011

A 240-degree acquisition protocol for myocardial perfusion imaging using technetium-99m (99Tcm) offers a valuable compromise. This method reduces apical distortion and improves tracer distribution compared to 180-degree imaging without significantly increasing acquisition time.

Area of Science:

  • Nuclear medicine
  • Medical imaging
  • Cardiology

Background:

  • Single photon emission tomographic (SPECT) imaging of myocardial perfusion commonly uses 99Tcm-labelled agents with 180-degree anterior data collection on single-detector gamma cameras.
  • Multi-detector systems allow for 180-degree and 360-degree reconstructions, but alternative acquisition protocols are being explored.

Purpose of the Study:

  • To compare 180-degree, 360-degree, and a novel 240-degree reconstruction method for myocardial perfusion SPECT.
  • To evaluate the impact of excluding right posterior views on image quality and signal-to-noise ratio.

Main Methods:

  • Utilized a dataset from 20 normal subjects undergoing myocardial perfusion SPECT.
  • Compared image reconstructions from 180-degree, 360-degree, and 240-degree (excluding right posterior views) acquisitions.

Related Experiment Videos

  • Performed semi-quantitative analysis of apical, mid-ventricular, and basal short-axis slices.

    • Main Results:

    • The 240-degree and 360-degree reconstructions eliminated apical distortion observed with 180-degree imaging.
    • Circumferential profiles showed near-complete overlap between 240-degree and 360-degree methods, with less pronounced inferior wall activity reduction in the 240-degree protocol.
    • Anterior wall activity reduction was more prominent in 180-degree reconstructions compared to 240-degree and 360-degree.

    Conclusions:

    • A 240-degree acquisition protocol provides a practical balance between 180-degree and 360-degree methods for single-detector systems.
    • This approach enhances tracer distribution homogeneity and reduces apical distortion without compromising contrast or acquisition time.