Scatter Correction Requirements for Likelihood-Based Attenuation Artifact Correction in PET

Artifacts have been observed in CT-based, 511-keV attenuation images for PET attenuation correction. Artifact detection and correction algorithms are being developed based on the Poisson log likelihood function (LLF). The LLF quantifies the level of consistency between an activity and attenuation im...

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Bibliographische Detailangaben

Hauptverfasser:	Laymon, C.M., Bowsher, J.E., Carney, J.P.J., Blodgett, T.M.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Accuracy Anthropomorphism Attenuation measurement Filtering Image reconstruction Imaging phantoms Noise level Performance evaluation Positron emission tomography Scattering Xray tomography
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