Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40658-022-00465-z/MediaObjects/40658_2022_465_Fig3_HTML.jpg)
Images from the IEC phantom acquisition equipped with microspheres, for a contrast of 5:1, for each PET system (Top image: DMI; Middle image: D710 and bottom image: IQ4), acquisition time (1st column: PET100, 2nd colomn: PET50 and 3rd column: PET33) and the application of SubtlePET (2nd row of each image)