The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Time-of-flight PET data determine the attenuation sinogram up to a constant
Open accessAbstract
In positron emission tomography (PET), a quantitative reconstruction of the tracer distribution requires accurate attenuation correction. We consider situations where a direct measurement of the attenuation coefficient of the tissues is not available or is unreliable, and where one attempts to estimate the attenuation sinogram directly from the emission data by exploiting the consistency conditions that must be satisfied by the non-attenuated data. We show that in time-of-flight PET, the attenuation sinogram is determined by the emission data except for a constant and that its gradient can be estimated efficiently using a simple analytic algorithm. The stability of the method is illustrated numerically by means of a 2D simulation.
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Cites
Attenuation correction for a combined 3D PET/CT scanner
Kinahan, P. E., Townsend, D. W., Beyer, T., & Sashin, D. (1998) · Medical Physics · doi:10.1118/1.598392 · Cited by 946
Cited by
Simultaneous Reconstruction of Activity and Attenuation in Time-of-Flight PET
Rezaei, A., Defrise, M., Bal, G., Michel, C., Conti, M., Watson, C., & Nuyts, J. (2012) · IEEE Transactions on Medical Imaging · doi:10.1109/tmi.2012.2212719 · Cited by 261
Self-citationRoadmap toward the 10 ps time-of-flight PET challenge
Lecoq, P., Morel, C., Prior, J. O., Visvikis, D., Gundacker, S., Auffray, E., Križan, P., Turtos, R. M., Thers, D., Charbon, E., et al. (2020) · Physics in Medicine & Biology · doi:10.1088/1361-6560/ab9500 · Cited by 258
Self-citationMehranian, A., Arabi, H., & Zaidi, H. (2016) · Medical Physics · doi:10.1118/1.4941014 · Cited by 152
Metadata
- Authors
- Defrise, M., Rezaei, A., & Nuyts, J.
- Venue
- Physics in Medicine and Biology
- Publisher
- IOP Publishing
- Published
- 2012-01-31
- Volume
- 57
- Issue
- 4
- Pages
- 885-899
- ISSN
- 0031-9155 (ISSN-L)
- 1361-6560
- OpenAlex
- W2069090100
- Cited by
- 234
- References
- 1
- FWCI
- 17.80
- Type
- journal article
- Language
- en
- Open access
- green
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- Defrise, M., Rezaei, A., & Nuyts, J. (2012). Time-of-flight PET data determine the attenuation sinogram up to a constant. Physics in Medicine and Biology. https://doi.org/10.1088/0031-9155/57/4/885
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