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

Iterative reconstruction methods for nonuniform attenuation distribution in SPECT

A Maze1, J Le Cloirec, R Collorec

  • 1Inserm U 335, Centre Eugène Marquis, Rennes, France.

Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine
|July 1, 1993
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

[Discontinuation of Chromium-51 for clinical use: What are the possible alternatives for radiopharmacies and nuclear medicine departments?]

Annales pharmaceutiques francaises·2020
Same author

Anatomy of the cutaneous lymphatic system of the trunk: a clinico-anatomical study of 90 cutaneous melanomas.

Surgical and radiologic anatomy : SRA·2017
Same author

Using PET for therapy monitoring in oncological clinical trials: challenges ahead.

European journal of nuclear medicine and molecular imaging·2017
Same author

Main applications of hybrid PET-MRI contrast agents: a review.

Contrast media & molecular imaging·2015
Same author

Monitoring the response of bone metastases to treatment with Magnetic Resonance Imaging and nuclear medicine techniques: a review and position statement by the European Organisation for Research and Treatment of Cancer imaging group.

European journal of cancer (Oxford, England : 1990)·2014
Same author

Utilization of D-ribitol by Lactobacillus casei BL23 requires a mannose-type phosphotransferase system and three catabolic enzymes.

Journal of bacteriology·2013
Same journal

Overall Survival with [<sup>177</sup>Lu]Lu-PSMA-617 Versus [<sup>177</sup>Lu]Lu-PSMA I&T: A Propensity Score-Matched Real-World Analysis.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine·2026
Same journal

Toward a Biopsy-Free Diagnosis of Prostate Cancer: Potential of Combined <sup>18</sup>F-Flotufolastat PSMA PET and mpMRI.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine·2026
Same journal

PSMA PET/CT-Targeted Biopsy in Men with Negative or Equivocal Multiparametric MRI and Exploratory Dynamic Total-Body PET: The FUPERMAN Study.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine·2026
Same journal

Erratum.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine·2026
Same journal

Live from 2026 SNMMI Annual Meeting in Los Angeles!

Journal of nuclear medicine : official publication, Society of Nuclear Medicine·2026
Same journal

CAR T-Cell Therapy for Cancer: Updates and Challenges for Response Assessment.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine·2026
See all related articles

Projection precorrection improves attenuation compensation in imaging, offering accurate quantification and image quality faster than the generalized Chang method. This method enhances image reconstruction efficiency.

Area of Science:

  • Medical Imaging
  • Image Reconstruction
  • Quantitative Analysis

Background:

  • Nonuniform attenuation is a significant challenge in emission imaging, affecting quantitative accuracy.
  • Accurate attenuation compensation is crucial for reliable image interpretation and analysis.

Purpose of the Study:

  • To evaluate the effectiveness of an attenuation map in improving nonuniform attenuation compensation using two iterative methods.
  • To compare the performance of a generalized Chang method and a projection precorrection technique.

Main Methods:

  • Investigated two iterative methods: a generalized Chang method and a projection precorrection.
  • Utilized simulated and phantom data for method comparison.
  • Detailed description of the implemented iterative algorithms.

Related Experiment Videos

Main Results:

  • Projection precorrection achieved accurate quantification and good image quality at the initial precorrection step.
  • The generalized Chang method required an additional iteration for comparable results.
  • Both methods aimed to improve nonuniform attenuation compensation.

Conclusions:

  • Projection precorrection offers a more efficient approach to nonuniform attenuation compensation.
  • The study highlights the advantages of projection precorrection for faster and accurate image reconstruction.
  • Attenuation map utilization is key for improved compensation in iterative reconstruction algorithms.