This is a PET scan of a mouse, showing its brown fat which is green and red due to its high metabolic state. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases ...

CT/PET scans of live mice, showing the stark differences in glucose uptake between the young mice differing only in the mitochondrial DNA variant inherited from the mother. Disclaimer: AAAS and ...

Prof Ertürk says this is important because cancer drugs have to be shown to eliminate tumours in mice before being tested on humans. "MRI and PET scans would show you only big tumours.