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AssigneesSiemens Healthcare GmbH, The United States of America, as represented by the Secretary, Department of Health and Human Services
InventorsPooyan Sahbaee Bagherzadeh, Babak Saboury Sichani, Faraz Farhadi
Estimating the term…
A virtual 511 KeV attenuation map is generated from CT data. Spectral or multiple energy CT is used to more accurately extrapolate the 511 KeV attenuation map. Since spectral or multiple energy CT may allow for material decomposition and/or due to additional information in the form of measurements at different energies, the modeling used to generate the 511 KeV attenuation map may better account for all materials including high density material. The extrapolated 511 KeV attenuation map may more likely represent actual attenuation at 511 KeV without requiring extra scanning using a 511 KeV source external to the patient. The virtual 511 KeV attenuation map (e.g., CT data at 511 KeV) may provide more accurate PET image reconstruction.
A method for attenuation correction in positron emission tomography, the method comprising:
A system for positron emission tomography imaging, the system comprising:
A non-transitory computer readable storage medium having stored therein data representing instructions executable by a programmed processor for attenuation correction in positron emission tomography (PET), the storage medium comprising instructions for:
Dependencies are inferred from the claim text.