Attention-based deep neural network for partial volume correction in brain 18F-FDG PET imaging

The partial volume effect (PVE) can limit the accuracy of Positron Emission Tomography (PET) images, particularly for features that are similar in size to the spatial resolution of the system (or point spread function - PSF), leading to noticeable spill-in and spill-out across adjacent regions and resulting in obvious biases [1 –3]. Prior to the measurement of lesion/organ metabolism and physiology, partial volume correction (PVC) may be necessary to take into account signal alteration due to the limited spatial resolution of the PET system.
Source: Physica Medica: European Journal of Medical Physics - Category: General Medicine Authors: Source Type: research