Conveners
Session 3 - Advances in MR-PET and MR-SPECT Software and Quantification
- Juergen Scheins (Forschungszentrum Juelich GmbH)
Christopher M Rank
(German Cancer Research Center (DKFZ), Heidelberg, Germany)
5/18/15, 4:30 PM
3 - Advances in MR-PET and MR-SPECT software and quantification
Talk
We propose a new method for PET/MR respiratory motion compensation, which is based on strongly undersampled measured MR data and a) runs in parallel with the PET acquisition, b) can be interlaced with clinical MR sequences, and c) can be acquired with measurement times as short as 0.5 min per bed position.
An MR dataset covering the free-breathing thorax and abdomen of a volunteer was...
Kjell Erlandsson
(Institute of Nuclear Medicine, University College London, London, UK)
5/18/15, 4:50 PM
3 - Advances in MR-PET and MR-SPECT software and quantification
Talk
Kinetic analysis can be applied both to dynamic PET and dynamic contrast enhanced (DCE) MRI data. We have investigated the potential of combined PET-MRI kinetic modelling using simulated FDG data.
The volume of distribution, Ve, for the extra-vascular extra-cellular space (EES) can be estimated by DCE-MRI, and used to reduce the number of parameters in the PET model. We use a 3...
Jarmo Teuho
(Turku PET Centre)
5/18/15, 5:10 PM
3 - Advances in MR-PET and MR-SPECT software and quantification
Talk
The quantitative accuracy of brain PET/MR has been reported to be reduced compared to PET/CT due to difficulties related to bone in MR-based attenuation correction (MRAC), especially in regions near the skull.
To reduce these effects, we designed an offline, tissue probability-based (TPB-AC) using SPM8, which includes soft tissue, air and bone. Thus, both the increased attenuation due to...
