Partial volume effect correction in PET imaging

The partial volume effect is the deterioration of the image quality in a medical scan due to the limited resolution of the imaging system and the sampling of the image in discrete voxels. This results in a blurring of the image, and small structures showing a lower activity. Our group implements and develops post-reconstruction correction methods for this effect. This is done using information from the PET-scan itself (iterative deconvolution), or using anatomical information from a coregistered MRI-scan.

Figure 1: Phantom study for activity recovery in PET scans. Left: virtual PET scan; middle: PET-based correction (iterative deconvolution); right: MRI-based correction (Rousset)
Figure 1: Phantom study for activity recovery in PET scans. Left: virtual PET scan; middle: PET-based correction (iterative deconvolution); right: MRI-based correction (Rousset)

Researcher: Stijn Bonte