Attenuation correction is important for PET reconstruction. In PET/MR, MR intensities are not
directly related to attenuation coefficients that are needed in PET imaging. The attenuation …

649 Objectives: Deriving accurate attenuation maps for PET/MRI remains a challenging
problem because MRI voxel intensities are not related to properties of photon attenuation …

Deriving accurate attenuation maps for PET/MRI remains a challenging problem because
MRI voxel intensities are not related to properties of photon attenuation and bone/air …

Attenuation correction in hybrid PET/MR scanners is still a challenging task. This paper
describes a methodology for synthesizing a pseudo-CT volume from a single T1-weighted …

Objectives Attenuation correction of positron emission tomographic (PET) data is critical in
providing accurate and quantitative PET volumes. Deriving an attenuation map (μ-map) from …

For quantitative PET information, correction of tissue photon attenuation is mandatory.
Generally in conventional PET, the attenuation map is obtained from a transmission scan …

Aim MR-based correction for photon attenuation in PET/MRI remains challenging,
particularly for neurological applications requiring quantitation of data. Existing methods are …

The CT synthesis method relies on a pre-acquired set of aligned MRI/CT pairs from multiple
subjects. Each MRI from the database is non-rigidly registered to the target MRI. The CTs in …

We present an approach for head MR-based attenuation correction (AC) based on the
Statistical Parametric Mapping 8 (SPM8) software, which combines segmentation-and atlas …

A comparison between PET/MR, PET/CT and PET was performed, to measure the bias due
to attenuation coefficient assignment along with the effect of modifying the parameters in …