Ray-driven analytical fan-beam SPECT reconstruction with nonuniform attenuation

Junhai Wen; Tianfang Li; Zhengrong Liang

doi:10.1109/ISBI.2002.1029336

Ray-driven analytical fan-beam SPECT reconstruction with nonuniform attenuation

Junhai Wen, Tianfang Li, Zhengrong Liang

Stony Brook University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

11 Citations (Scopus)

Abstract

Single-photon emission computed tomography (SPECT) is based on the measurement of radiation emitted by a radiotracer injected into the patient. Because of photoelectric absorption and Compton scatter, the γ photons are attenuated inside the body before arriving at the detector. A quantitative reconstruction must consider the attenuation, which is usually non-uniform. Novikov and Natterer had derived an explicit formula for non-uniformly attenuated SPECT reconstruction of parallel-hole collimators. In this paper, we extend their researches to fan-beam collimators. Because any ray in fan-beam geometry can be treated as a ray in parallel-beam geometry, we derived a ray-driven analytical fan-beam reconstruction formula with non-uniform attenuation. Its accuracy is demonstrated computer simulation experiments.

Original language	English
Title of host publication	2002 IEEE International Symposium on Biomedical Imaging, ISBI 2002 - Proceedings
Publisher	IEEE Computer Society
Pages	629-632
Number of pages	4
ISBN (Electronic)	078037584X
DOIs	https://doi.org/10.1109/ISBI.2002.1029336
Publication status	Published - 2002
Externally published	Yes
Event	IEEE International Symposium on Biomedical Imaging, ISBI 2002 - Washington, United States Duration: 7 Jul 2002 → 10 Jul 2002

Publication series

Name	Proceedings - International Symposium on Biomedical Imaging
Volume	2002-January
ISSN (Print)	1945-7928
ISSN (Electronic)	1945-8452

Conference

Conference	IEEE International Symposium on Biomedical Imaging, ISBI 2002
Country/Territory	United States
City	Washington
Period	7/07/02 → 10/07/02

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10.1109/ISBI.2002.1029336

Cite this

Wen, J., Li, T., & Liang, Z. (2002). Ray-driven analytical fan-beam SPECT reconstruction with nonuniform attenuation. In 2002 IEEE International Symposium on Biomedical Imaging, ISBI 2002 - Proceedings (pp. 629-632). Article 1029336 (Proceedings - International Symposium on Biomedical Imaging; Vol. 2002-January). IEEE Computer Society. https://doi.org/10.1109/ISBI.2002.1029336

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title = "Ray-driven analytical fan-beam SPECT reconstruction with nonuniform attenuation",

abstract = "Single-photon emission computed tomography (SPECT) is based on the measurement of radiation emitted by a radiotracer injected into the patient. Because of photoelectric absorption and Compton scatter, the γ photons are attenuated inside the body before arriving at the detector. A quantitative reconstruction must consider the attenuation, which is usually non-uniform. Novikov and Natterer had derived an explicit formula for non-uniformly attenuated SPECT reconstruction of parallel-hole collimators. In this paper, we extend their researches to fan-beam collimators. Because any ray in fan-beam geometry can be treated as a ray in parallel-beam geometry, we derived a ray-driven analytical fan-beam reconstruction formula with non-uniform attenuation. Its accuracy is demonstrated computer simulation experiments.",

author = "Junhai Wen and Tianfang Li and Zhengrong Liang",

note = "Publisher Copyright: {\textcopyright} 2002 IEEE.; IEEE International Symposium on Biomedical Imaging, ISBI 2002 ; Conference date: 07-07-2002 Through 10-07-2002",

year = "2002",

doi = "10.1109/ISBI.2002.1029336",

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Wen, J, Li, T & Liang, Z 2002, Ray-driven analytical fan-beam SPECT reconstruction with nonuniform attenuation. in 2002 IEEE International Symposium on Biomedical Imaging, ISBI 2002 - Proceedings., 1029336, Proceedings - International Symposium on Biomedical Imaging, vol. 2002-January, IEEE Computer Society, pp. 629-632, IEEE International Symposium on Biomedical Imaging, ISBI 2002, Washington, United States, 7/07/02. https://doi.org/10.1109/ISBI.2002.1029336

Ray-driven analytical fan-beam SPECT reconstruction with nonuniform attenuation. / Wen, Junhai; Li, Tianfang; Liang, Zhengrong.
2002 IEEE International Symposium on Biomedical Imaging, ISBI 2002 - Proceedings. IEEE Computer Society, 2002. p. 629-632 1029336 (Proceedings - International Symposium on Biomedical Imaging; Vol. 2002-January).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Li, Tianfang

AU - Liang, Zhengrong

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N2 - Single-photon emission computed tomography (SPECT) is based on the measurement of radiation emitted by a radiotracer injected into the patient. Because of photoelectric absorption and Compton scatter, the γ photons are attenuated inside the body before arriving at the detector. A quantitative reconstruction must consider the attenuation, which is usually non-uniform. Novikov and Natterer had derived an explicit formula for non-uniformly attenuated SPECT reconstruction of parallel-hole collimators. In this paper, we extend their researches to fan-beam collimators. Because any ray in fan-beam geometry can be treated as a ray in parallel-beam geometry, we derived a ray-driven analytical fan-beam reconstruction formula with non-uniform attenuation. Its accuracy is demonstrated computer simulation experiments.

AB - Single-photon emission computed tomography (SPECT) is based on the measurement of radiation emitted by a radiotracer injected into the patient. Because of photoelectric absorption and Compton scatter, the γ photons are attenuated inside the body before arriving at the detector. A quantitative reconstruction must consider the attenuation, which is usually non-uniform. Novikov and Natterer had derived an explicit formula for non-uniformly attenuated SPECT reconstruction of parallel-hole collimators. In this paper, we extend their researches to fan-beam collimators. Because any ray in fan-beam geometry can be treated as a ray in parallel-beam geometry, we derived a ray-driven analytical fan-beam reconstruction formula with non-uniform attenuation. Its accuracy is demonstrated computer simulation experiments.

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BT - 2002 IEEE International Symposium on Biomedical Imaging, ISBI 2002 - Proceedings

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T2 - IEEE International Symposium on Biomedical Imaging, ISBI 2002

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ER -

Ray-driven analytical fan-beam SPECT reconstruction with nonuniform attenuation

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