Fig. 1
From: Evaluation of image quality with four positron emitters and three preclinical PET/CT systems
Image quality from one plane in the rod region of the NEMA phantom with different preclinical PET/CT systems. The systems shown are a RAYCAN, b Inveon and c Molecubes. Slight differences in the noise level between various radionuclides in the images within a system can be seen. The 18F and 89Zr have similar whereas appearance, whereas the positron range is the major contributing factor to the blurred appearance of the images with 68Ga. All images have been scaled between 0 and 1.25 times the mean activity of the uniform compartment