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Philips Allegro PET scanner
"The Allegro is a PET-only instrument with an intrinsic spatial resolution of 4.8 mm. The scanner operates in 3D (no septa) utilizing a fully 3D iterative algorithm (3D-RAMLA) for image reconstruction.
The GSO crystals achieve 16% energy resolution. Attenuation correction relies on a transmission scan performed in singles acquisition mode using a Cs-137 point source.
Philips Medical Systems
Reconstructed FOV: 25.6, 57.6 cm
Axial FOV: 18 cm
Detector Design: 4x6x20mm GSO crystals
Spatial Resolution: 4.8 mm FWHM (NEMA)
Installed at HUP in 2001"
Positron Emission Tomography Center (Penn)