# 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…

## 395 Citations

Determining when 3D reconstruction methods are required in volume PET imaging

- Physics, MathematicsIEEE Conference on Nuclear Science Symposium and Medical Imaging
- 1992

An attempt is made to determine at which point a 3-D reconstruction algorithm is needed for a volume imaging scanner as the axial extent is increased. From simulations of an existing volume PET…

Factors Affecting Accuracy and Precision in PET Volume Imaging

- Physics, MedicineJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism
- 1991

Volume imaging positron emission tomographic scanners with no septa and a large axial acceptance angle and good energy resolution are needed in order to use a high energy threshold to reduce the coincident scattered radiation.

Three-dimensional image reconstruction for PET by multi-slice rebinning and axial image filtering.

- PhysicsPhysics in medicine and biology
- 1994

The reconstruction method makes use of all coincidence data acquired by high-sensitivity PET systems that do not have inter-slice absorbers to restrict the axial acceptance angle, making it well suited for dynamic and whole-body studies.

Positron Emission Tomography With A Large Axial Acceptance Angle: Signal-to-noise Considerations

- Physics1990 IEEE Nuclear Science Symposium Conference Record
- 1990

A volume imaging PET scanner with a large acceptance angle, such as the PE"-PET, offers fine spatial sampling and resolution in three dimensions, and a high sensitivity because of the inclusion of…

Positron emission tomography with a large axial acceptance angle: signal-to-noise considerations.

- PhysicsIEEE transactions on medical imaging
- 1991

The signal-to-noise ratio (SNR) is used to evaluate image quality for different scanning conditions of the PENN-PET using an activated cylindrical phantom with cold spheres of various sizes.

Figures of merit for comparing reconstruction algorithms with a volume-imaging PET scanner.

- Medicine, PhysicsPhysics in medicine and biology
- 1994

It is shown that the single-slice rebinning algorithm is a good compromise between sensitivity, speed, and accuracy when compared to standard two-dimensional reconstruction, and a 3D reconstruction with alpha = 9 degrees.

Effect of spatial behavior of scatter on 3D PET

- Physics, MathematicsMedical Imaging
- 1997

In 3D positron emission tomography (PET), all the coincidence events can be collected to increase the sensitivity of signal detection. However, the sensitivity increase results in the enlargement of…

Continuous-slice PENN-PET: a positron tomograph with volume imaging capability.

- MedicineJournal of nuclear medicine : official publication, Society of Nuclear Medicine
- 1990

The PENN-PET scanner consists of six hexagonally arranged position-sensitive Nal(TI) detectors. This design offers high spatial resolution in all three dimensions, high sampling density along all…

A performance study of 3D reconstruction algorithms for positron emission tomography.

- PhysicsPhysics in medicine and biology
- 1994

Five three-dimensional reconstruction algorithms for multi-ring PET scanners operated without septa are investigated: the reprojection method, the direct Fourier reconstruction, the FAVOR algorithm, and the single-slice and multi-slice rebinning algorithms.

A performance study of 3D reconstruction algorithms for positron emission tomography

- Physics
- 1994

The authors investigate the statistical and systematic accuracy of five three-dimensional reconstruction algorithms for multi-ring PET scanners operated without septa: the reprojection method, the…

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