• Corpus ID: 18162839

Treatment of axial data in three-dimensional PET.

@article{DaubeWitherspoon1987TreatmentOA,
  title={Treatment of axial data in three-dimensional PET.},
  author={Margaret E. Daube-Witherspoon and Gerd Muehllehner},
  journal={Journal of nuclear medicine : official publication, Society of Nuclear Medicine},
  year={1987},
  volume={28 11},
  pages={
          1717-24
        }
}
Improved axial spatial resolution in positron emission tomography (PET) scanners will lead to reduced sensitivity unless the axial acceptance angle for the coincidences is kept constant. A large acceptance angle, however, violates assumptions made in most reconstruction algorithms, which reconstruct parallel independent slices, rather than a three-dimensional volume. Two methods of treating the axial information from a volume PET scanner are presented. Qualitative and quantitative errors… 
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References

SHOWING 1-10 OF 20 REFERENCES
Fully-three-dimensional positron emission tomography
  • J. Colsher
  • Physics, Mathematics
    Physics in medicine and biology
  • 1980
TLDR
Fully three-dimensional positron emission tomography is considered and a reconstruction algorithm derived that is computationally feasible and results in accurate reconstructions.
Positron emission computed tomography using large area detectors
The use of large area, position sensitive devices for positron annihilation coincidence detection permit fully 3-dimensional reconstructions of the activity distribution. Since the detectors may…
A positron camera using position-sensitive detectors: PENN-PET.
  • G. Muehllehner, J. Karp
  • Physics
    Journal of nuclear medicine : official publication, Society of Nuclear Medicine
  • 1986
TLDR
A single-slice positron camera has been developed with good spatial resolution and high count rate capability and an iterative reconstruction algorithm was modified which ignores the missing data in the gaps between the six detectors and gives artifact-free images.
An Iterative Image Space Reconstruction Algorthm Suitable for Volume ECT
TLDR
The method, the iterative image space reconstruction algorithm (ISRA), is able to reconstruct data from a scanner with a spatially variant point spread function in less time than other proposed algorithms.
Inverse Monte Carlo: A Unified Reconstruction Algorithm for SPECT
Inverse Monte Carlo (IMOC) is presented as a unified reconstruction algorithm for Emission Computed Tomography (ECT) providing simultaneous compensation for scatter, attenuation, and the variation of…
Iterative three-dimensional image reconstruction from tomographic projections
A Hexagonal Bar Positron Camera: Problems and Solutions
As the ability of positron imaging devices to obtain many transverse sections simultaneously with improved spatial resolution has increased, so has the number of scintillation crystals and…
Evemt Localization in a Continuous Scintillation Detector Using Digital Processing
We have designed, constructed and begun to evaluate a two-dimensional position-sensitive detector which will be used in a multi-slice PET scanner. We have measured 5.2 mm transverse and 6.0 mm axial…
True Three-Dimensional Reconstruction (TTR) Application of Algorithm toward Full Utilization of Oblique Rays
TLDR
Through this extended TTR (ETTR) algorithm, it is now possible not only to reconstruct an image of a larger object but also possible to obtain images which have substantially better signal-to-noise ratio.
Utilization of Cross‐Plane Rays for Three‐Dimensional Reconstruction by Filtered Back‐Projection
TLDR
An algorithm that can also utilize “cross-plane” rays (i.e., rays that cross through many planes) to reconstruct the object to show the ability to use ray measurements that cross many planes is presented.
...
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