Iterative Reconstruction Methods for Nonuniform Attenuation Distribution in SPECT
Two iterative methods, a generalization of the Chang method and a projection precorrection, were investigated to determine whether the use of an attenuation map could improve nonuniform attenuation compensation. After a detailed description of the methods, results obtained with simulated and phantom...
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| Veröffentlicht in: | The Journal of nuclear medicine (1978) 1993-07, Vol.34 (7), p.1204-1209 |
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| container_issue | 7 |
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| container_title | The Journal of nuclear medicine (1978) |
| container_volume | 34 |
| creator | Maze, Anne Le Cloirec, Joseph Collorec, Rene Bizais, Yves Briandet, Philippe Bourguet, Patrick |
| description | Two iterative methods, a generalization of the Chang method and a projection precorrection, were investigated to determine whether the use of an attenuation map could improve nonuniform attenuation compensation. After a detailed description of the methods, results obtained with simulated and phantom data were compared. This study demonstrates that projection precorrection provides accurate quantification and good image quality as early as the precorrection step, whereas the generalized Chang method requires computation of one more iteration. |
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| ispartof | The Journal of nuclear medicine (1978), 1993-07, Vol.34 (7), p.1204-1209 |
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| language | eng |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Algorithms Computer Simulation Humans Image Processing, Computer-Assisted - methods Models, Structural Thorax - diagnostic imaging Tomography, Emission-Computed, Single-Photon - methods Tomography, X-Ray Computed |
| title | Iterative Reconstruction Methods for Nonuniform Attenuation Distribution in SPECT |
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