Detector efficiency and Compton scatter in fully 3D PET
作者： J.M. Ollinger
DOI: 10.1109/NSSMIC.1994.474595
关键词:
摘要: Variations in detector efficiency induce significant artifacts reconstructed images unless accurate normalization methods are used. Scattered events detected with significantly different efficiencies than unscattered because the photons scattered coincidences arrive at lower energies and over a wide range of angles incidence. Current work well for septa-extended imaging scatter fractions low. The large encountered fully 3D imaging, however, require that these differences be accounted for. authors proposes technique accounts them show it yields more uniform two other potential methods. >
sci-hub.se 参考文章(7)
M Defrise, D W Townsend, R Clack, Three-dimensional image reconstruction from complete projections. Physics in Medicine and Biology. ,vol. 34, pp. 573- 587 ,(1989) , 10.1088/0031-9155/34/5/002
M Defrise, D W Townsend, D Bailey, A M C Geissbuhler, T Jones, A normalization technique for 3D PET data Physics in Medicine and Biology. ,vol. 36, pp. 939- 952 ,(1991) , 10.1088/0031-9155/36/7/003
P.E. Kinahan, J.G. Rogers, R. Harrop, R.R. Johnson, Three-dimensional image reconstruction in object space IEEE Transactions on Nuclear Science. ,vol. 35, pp. 635- 638 ,(1988) , 10.1109/23.12802
Michael E. Casey, Edward J. Hoffman, Quantitation in positron emission computed tomography: 7. A technique to reduce noise in accidental coincidence measurements and coincidence efficiency calibration. Journal of Computer Assisted Tomography. ,vol. 10, pp. 845- 850 ,(1986) , 10.1097/00004728-198609000-00027
E.J. Hoffman, T.M. Guerrero, G. Germano, W.M. Digby, M. Dahlbom, PET system calibrations and corrections for quantitative and spatially accurate images IEEE Transactions on Nuclear Science. ,vol. 36, pp. 1108- 1112 ,(1989) , 10.1109/23.34613
D.W. Townsend, A. Geissbuhler, M. Defrise, E.J. Hoffman, T.J. Spinks, D.L. Bailey, M.-C. Gilardi, T. Jones, Fully three-dimensional reconstruction for a PET camera with retractable septa IEEE Transactions on Medical Imaging. ,vol. 10, pp. 505- 512 ,(1991) , 10.1109/42.108584
Josef Machac, Shankar Vallabhajosula, Cerebral Versus Myocardial Stress Perfusion Imaging: Role of Pharmacological Intervention in the Diagnostic Assessment of Flow Reserve The Journal of Nuclear Medicine. ,vol. 35, pp. 41- 43 ,(1994)