FDG PET/CT myocardial perfusion imaging
When is this exam indicated?
- coronary artery disease
How is it performed?
It is necessary to fast for at least 6 hours, and it is fundamental to
notify the nuclear physician in case of diabetes.
Prior to the 18FDG PET scan, a perfusion study (resting SPET or NH3-PET) must be performed to compare 18FDG distribution images with perfusion images in order to identify hypoperfused but viable myocardial areas.
In order to maximize the extraction of the tracer from the myocardial cells, glucose is administered orally or intravenously associated with insulin, also intravenously in cases of high glycemic values.
After stabilization of glycemic values, intravenous injection of 18F-FDG tracer is administered.
Image acquisition on the tomograph starts in 45-60 minutes after injection.
For the acquisition of images the patient will be placed on the PET scanner bed for about 15 minutes.
The examination cannot be performed in case of pregnancy or breastfeeding/lactation.