Patent ID: 8923592
Filing Date: 2014-12-30
Classification: A61B,G06T

Abstract:
1. A method for correcting a positron emission tomography (PET) image, said method comprising: using one or more processors to obtain a magnetic resonance (MR) image dataset; classifying, using the one or more processors, at least one object in the MR image as a bone; identifying, using the one or more processors, a reference bone voxel in the MR image dataset; counting, using the one or more processors, a number and distribution of neighbor bone voxels for the reference bone voxel; generating, using the one or more processors, a MR-derived PET attenuation correction factor scaling for the reference bone voxel based on the number and distribution of neighbor bone voxels; and attenuation correcting a plurality of PET emission data using the MR-derived PET attenuation correction factors.