Emission-based estimation of lung attenuation coefficients for attenuation correction in time-of-flight PET/MR.

Abstract

In standard segmentation-based MRI-guided attenuation correction (MRAC) of PET data on hybrid PET/MRI systems, the inter/intra-patient variability of linear attenuation coefficients (LACs) is ignored owing to the assignment of a constant LAC to each tissue class. This can lead to PET quantification errors, especially in the lung regions. In this work, we… (More)
DOI: 10.1088/0031-9155/60/12/4813

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