Emission Tomography: SPECT and PET
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| Format: | Artículo científico |
| Sprache: | en |
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Instituto Politécnico Nacional
2004
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| _version_ | 1876450680508514304 |
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| author | Cecil Chow Robilotta |
| author_facet | Cecil Chow Robilotta |
| contents | Emission Tomography: SPECT and PET Cecil Chow Robilotta Computación PET SPECT quantification nuclear medicine functional imaging Emission tomography is a medical image modality that utilizes molecules labelled with radionuclides, theradiopharmaceuticals, to obtain functional information about specific tissues or systems.In SPECT, Single Photon Emission Computerized Tomography, the radionuclide decays by emitting one ormore photons, while in PET, Positron Emission Tomography, the radionuclide emits a positron, in order toreach a lower energy level. Although the forms of energy emitted are different, the images arereconstructed from the information acquired by external detection of the emitted photons (SPECT) and thepair of annihilation photons (PET) in coincidence.Due to the specificity and characteristics of these images, their information can be quantified, so thatfunctional or metabolic parameters can be obtained for diagnostic or therapeutic purposes. However, inorder to achieve reliable results, factors related to the instrumentation and patient conditions, as well as tothe interactions between radiations and tissues and the reconstruction methods have to be consideredcarefully. In this lecture, after the introduction of the fundamentals of nuclear medicine imaging, the basisof emission tomography acquisition and reconstruction will be presented. Some correction methods will beintroduced in order to exemplify the current quantifications adopted in the clinical routine of molecularimaging. 2004 artículo científico 1405-5546 https://www.redalyc.org/articulo.oa?id=61570304 en http://www.redalyc.org/revista.oa?id=615 Computación y Sistemas application/pdf Instituto Politécnico Nacional Computación y Sistemas (México) Num.3 Vol.7 |
| format | Artículo científico |
| id | redalyc_61570304 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Instituto Politécnico Nacional |
| spellingShingle | Emission Tomography: SPECT and PET Cecil Chow Robilotta Computación PET SPECT quantification nuclear medicine functional imaging Emission Tomography: SPECT and PET Cecil Chow Robilotta Computación PET SPECT quantification nuclear medicine functional imaging Emission tomography is a medical image modality that utilizes molecules labelled with radionuclides, theradiopharmaceuticals, to obtain functional information about specific tissues or systems.In SPECT, Single Photon Emission Computerized Tomography, the radionuclide decays by emitting one ormore photons, while in PET, Positron Emission Tomography, the radionuclide emits a positron, in order toreach a lower energy level. Although the forms of energy emitted are different, the images arereconstructed from the information acquired by external detection of the emitted photons (SPECT) and thepair of annihilation photons (PET) in coincidence.Due to the specificity and characteristics of these images, their information can be quantified, so thatfunctional or metabolic parameters can be obtained for diagnostic or therapeutic purposes. However, inorder to achieve reliable results, factors related to the instrumentation and patient conditions, as well as tothe interactions between radiations and tissues and the reconstruction methods have to be consideredcarefully. In this lecture, after the introduction of the fundamentals of nuclear medicine imaging, the basisof emission tomography acquisition and reconstruction will be presented. Some correction methods will beintroduced in order to exemplify the current quantifications adopted in the clinical routine of molecularimaging. 2004 artículo científico 1405-5546 https://www.redalyc.org/articulo.oa?id=61570304 en http://www.redalyc.org/revista.oa?id=615 Computación y Sistemas application/pdf Instituto Politécnico Nacional Computación y Sistemas (México) Num.3 Vol.7 |
| title | Emission Tomography: SPECT and PET |
| topic | Computación PET SPECT quantification nuclear medicine functional imaging |
| url | https://www.redalyc.org/articulo.oa?id=61570304 |