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

Feldkamp-type cone-beam tomography in the wavelet framework.

S Zhao1, G Wang

  • 1Department of Mathematics and Computer Science, University of Missouri-St. Louis 63121, USA. zhao@great-wall.umsl.edu

IEEE Transactions on Medical Imaging
|December 29, 2000
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

Interaction in vivo and in vitro of the metastasis-inducing S100 protein, S100A4 (p9Ka) with S100A1.

The Journal of biological chemistry·2001
Same author

Hyperactive tendon reflexes in spastic multiple sclerosis: measures and mechanisms of action.

Archives of physical medicine and rehabilitation·2000
Same author

Synthesis of unsaturated carboacyclic nucleoside analogues via Mitsunobu reactions.

Nucleosides, nucleotides & nucleic acids·2000
Same author

Synthesis and cytokine modulation properties of pyrrolo[2, 3-d]-4-pyrimidone nucleosides.

Journal of medicinal chemistry·2000
Same author

Reciprocal information flow between prefrontal cortex and ventral tegmental area in an animal model of schizophrenia.

Neuroreport·2000
Same author

The "waiting period" of sensory and motor axons in early chick hindlimb: its role in axon pathfinding and neuronal maturation.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2000

This study introduces a wavelet-based approach for cone-beam computed tomography (CT) reconstruction. The method effectively reconstructs 3-D regions of interest with reduced artifacts and bias, addressing radiation exposure concerns.

Area of Science:

  • Medical Imaging
  • Image Reconstruction
  • Wavelet Theory

Background:

  • X-ray computed tomography (CT) is shifting from fan-beam to cone-beam geometry for volumetric imaging.
  • Reducing radiation exposure in cone-beam CT (CBCT) is a critical challenge.
  • Wavelet methods have demonstrated effectiveness in 2-D local image reconstruction.

Purpose of the Study:

  • To develop and validate a wavelet-based local CT reconstruction method for cone-beam geometry.
  • To adapt the Feldkamp algorithm from a wavelet perspective for improved 3-D image reconstruction.
  • To assess the performance of the proposed method in terms of artifact reduction and bias control.

Main Methods:

  • Formulation of the Feldkamp cone-beam reconstruction algorithm using wavelet theory.

Related Experiment Videos

  • Derivation of full-scan and half-scan Feldkamp-type formulas for global and local reconstruction.
  • Validation using both synthetic and real imaging data.

    • Main Results:

    • Successful reconstruction of a three-dimensional (3-D) region of interest (ROI) using the wavelet Feldkamp approach.
    • Demonstrated significant reduction in image artifacts compared to conventional methods.
    • Observed no significant constant bias in the reconstructed images.

    Conclusions:

    • The wavelet Feldkamp approach is feasible and useful for cone-beam CT.
    • This method enables high-quality 3-D ROI reconstruction with minimized artifacts and bias.
    • The approach contributes to safer and more effective volumetric imaging in medical applications.