Computer program, method, and system for hybrid CT...

Details Computer program, method, and system for hybrid CT... Computer program, method, and system for hybrid CT...

2008-05-27

2008-05-27

Porta, David P. (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

C378S004000, C250S363020, C250S363040, C382S131000

Reexamination Certificate

active

07378660

ABSTRACT:
Embodiments of the present invention provide a computer program, method, and system to facilitate hybrid CT attenuation correction. In one embodiment, the method generally includes acquiring data from a scanner, utilizing an ordered subset expectation maximization-bayesian algorithm to reconstruct the acquired data, and forward projecting the reconstructed data. Such a configuration minimizes the computing resources required for reconstruction and improves attenuation correction accuracy.

REFERENCES:
J. Bowsher et al., Bayesian Reconstruction and Use of Anatomical A Priori Information for Emission Tomography, Oct. 1996, IEEE Transactions on Medical Imaging, vol. 15, No. 5, pp. 673-686.
P. Green, Bayesian Reconstructions From Emission Tomography Data Using a Modified EM Algorithm, Mar. 1990, IEEE Transactions on Medication Imaging, vol. 9, No. 1, pp. 84-93.
H. Malcolm Hudson and Richard S. Larkin, Accelerated Image Reconstruction Using Ordered Subsets of Projection Data, Dec. 1994, IEEE Transactions on Medical Imaging, vol. 13, No. 4, pp. 601-609.

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