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Performance Characteristics of an Eight-Ring Whole Body PET Scanner
Abstract
The technical characteristics of the multislice whole-body positron emission tomographic scanner (model PC4096-15WB Scanditronix) and its performance parameters are described. Spatial resolution at the center of the field of view was found to be 4.9 mm in-plane and 4.6 mm (cross slices) and 6.0 mm (direct slices) in the axial direction. The sensitivity for true and scattered coincidences is approximately 5,000 cps for direct slices and 7,100 cps for cross slices. At an activity concentration of 37 kBq/ml the system deadtime was approximately 5%. By measuring a uniform phantom with a cold cylindrical insert (5.0 cm diameter), the scatter fraction was found to be approximately 5%. The mean global uniformity over all 15 slices was 6.5%, whereas the local uniformity was found to be 4.3%. No systematic nonuniformities were observed. Finally, various methods for attenuation correction (transmission scan, contour finding, ellipse) were utilized to test their effects on the resulting reconstructed images.
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Citations
Cited by
Rauch, S. L. (1996) · Archives of General Psychiatry · doi:10.1001/archpsyc.1996.01830050014003 · Cited by 1,056
Rauch, S. L. (1994) · Archives of General Psychiatry · doi:10.1001/archpsyc.1994.03950010062008 · Cited by 880
Topographical representations of mental images in primary visual cortex
Kosslyn, S. M., Thompson, W. L., Klm, I. J., & Alpert, N. M. (1995) · Nature · doi:10.1038/378496a0 · Cited by 701
Visual Mental Imagery Activates Topographically Organized Visual Cortex: PET Investigations
Kosslyn, S. M., Alpert, N. M., Thompson, W. L., Maljkovic, V., Weise, S. B., Chabris, C. F., Hamilton, S. E., Rauch, S. L., & Buonanno, F. S. (1993) · Journal of Cognitive Neuroscience · doi:10.1162/jocn.1993.5.3.263 · Cited by 641
Schacter, D. L., Alpert, N. M., Savage, C. R., Rauch, S. L., & Albert, M. S. (1996) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.93.1.321 · Cited by 552
Metadata
- Authors
- Kops, E. R., Herzog, H., Schmid, A., Holte, S., & Feinendegen, L. E.
- Venue
- Journal of Computer Assisted Tomography
- Published
- 1990-05
- Volume
- 14
- Issue
- 3
- Pages
- 437-445
- ISSN
- 0363-8715 (ISSN-L)
- OpenAlex
- W2061938237
- Cited by
- 194
- References
- 0
- FWCI
- 9.42
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kops, E. R., Herzog, H., Schmid, A., Holte, S., & Feinendegen, L. E. (1990). Performance Characteristics of an Eight-Ring Whole Body PET Scanner. Journal of Computer Assisted Tomography. https://doi.org/10.1097/00004728-199005000-00022
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