Coronal CT (a), PET (b), and PET/CT fusion (c) images and (d) maximal intensity projection (MIP) show the physiological biodistribution of ¹⁸F-FDG (Discovery ST-E PET/CT system, General Electric Healthcare, Milwaukee, WI. Images collected 60 min after intravenous injection of ¹⁸F-FDG. At the time of the tracer injection, the patient had fasted for over 6 h, and his glucose blood level was 94 mg/dl. The data was acquired in 3D mode, with attenuation correction calculated by coregistered CT images)