Systems and methods for PET penalized-likelihood image reconstruction with spatially varying smoothing parameters
US9595121B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Nov 2, 2012 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Mar 2, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/424
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method for penalized-likelihood reconstruction of a Positron Emission Tomography (PET) image includes generating a regularization function in which a smoothing parameter is modulated by one or more data-independent spatially variable modulation factors to compensate for sensitivity variations in a PET voxel dataset, and reconstructing the PET image from the PET emission dataset using the regularization function.
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