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Langue: anglais
Edité par LAP LAMBERT Academic Publishing Jun 2011, 2011
ISBN 10 : 3844397132 ISBN 13 : 9783844397130
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Ajouter au panierTaschenbuch. Etat : Neu. Neuware -The transmission and emission data are acquired simultaneously with 153Gd and 67Ga respectively. The distribution of scatter and spill over in transmission window were estimated. The scatter function, spillover and scatter fractions were estimated at different depth in different media and the relationship was established. The corrected transmission projections were reconstructed and the corrected attenuation map was scaled to take into account the difference in photon energies of the two radionuclides. Combined emission images of a thorax phantom and human volunteer were reconstructed using the OSEM algorithm. It was found that the bi- exponential scatter function is independent of material and depth of source. The scatter fraction and spillover both depend on the thickness and density of attenuating material. Corrected transmission data using an iterative process improved the contrast and quantitative accuracy. We could conclude that transmission based correction method can be applied to improve the attenuation map used in attenuation correction of SPECT images.Books on Demand GmbH, Überseering 33, 22297 Hamburg 176 pp. Englisch.
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Edité par LAP LAMBERT Academic Publishing, 2011
ISBN 10 : 3844397132 ISBN 13 : 9783844397130
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Edité par LAP LAMBERT Academic Publishing Jun 2011, 2011
ISBN 10 : 3844397132 ISBN 13 : 9783844397130
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Ajouter au panierTaschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The transmission and emission data are acquired simultaneously with 153Gd and 67Ga respectively. The distribution of scatter and spill over in transmission window were estimated. The scatter function, spillover and scatter fractions were estimated at different depth in different media and the relationship was established. The corrected transmission projections were reconstructed and the corrected attenuation map was scaled to take into account the difference in photon energies of the two radionuclides. Combined emission images of a thorax phantom and human volunteer were reconstructed using the OSEM algorithm. It was found that the bi- exponential scatter function is independent of material and depth of source. The scatter fraction and spillover both depend on the thickness and density of attenuating material. Corrected transmission data using an iterative process improved the contrast and quantitative accuracy. We could conclude that transmission based correction method can be applied to improve the attenuation map used in attenuation correction of SPECT images. 176 pp. Englisch.
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Edité par LAP LAMBERT Academic Publishing, 2011
ISBN 10 : 3844397132 ISBN 13 : 9783844397130
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Ajouter au panierEtat : New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Kheruka Subhash ChandA graduate from Rajasthan University,Jaipur passed diploma in nuclear medicine techniques from BARC, Mumbai University, Mumbai. Awarded M. Sc. (Medical Physics)by research from University of Wollongong,Australia.
Langue: anglais
Edité par LAP LAMBERT Academic Publishing, 2011
ISBN 10 : 3844397132 ISBN 13 : 9783844397130
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Ajouter au panierTaschenbuch. Etat : Neu. Correction of transmission contamination in SPECT imaging | Simultaneous emission and transmission tomography with 67Ga/153Gd | Subhash Chand Kheruka | Taschenbuch | 176 S. | Englisch | 2011 | LAP LAMBERT Academic Publishing | EAN 9783844397130 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu Print on Demand.
Langue: anglais
Edité par LAP LAMBERT Academic Publishing, 2011
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Ajouter au panierTaschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The transmission and emission data are acquired simultaneously with 153Gd and 67Ga respectively. The distribution of scatter and spill over in transmission window were estimated. The scatter function, spillover and scatter fractions were estimated at different depth in different media and the relationship was established. The corrected transmission projections were reconstructed and the corrected attenuation map was scaled to take into account the difference in photon energies of the two radionuclides. Combined emission images of a thorax phantom and human volunteer were reconstructed using the OSEM algorithm. It was found that the bi- exponential scatter function is independent of material and depth of source. The scatter fraction and spillover both depend on the thickness and density of attenuating material. Corrected transmission data using an iterative process improved the contrast and quantitative accuracy. We could conclude that transmission based correction method can be applied to improve the attenuation map used in attenuation correction of SPECT images.
Langue: anglais
Edité par Springer Nature Singapore, 2023
ISBN 10 : 9811945209 ISBN 13 : 9789811945205
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Ajouter au panierEtat : New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Discusses all relevant aspects of radiation protection while using unsealed radionuclidesHighlights the radiation safety precautions to be taken by the occupational workers while handling the radionuclidesSpecial section covers objective qu.
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Langue: anglais
Edité par Springer, Berlin|Springer Nature Singapore|Springer, 2022
ISBN 10 : 9811945179 ISBN 13 : 9789811945175
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Ajouter au panierEtat : New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. The book covers all the radiation safety aspects while working with unsealed radionuclides. Radiation safety plays a significant role in routine nuclear medicine practices and is necessary to protect occupational workers, patients, members .
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