Ambient temperature and cardiac accumulation of 18F-FDG.

Unlabelled: Warming patients by changing the ambient environment (rather than core temperature) has been reported to reduce brown adipose tissue activity, thereby reducing artifacts in (18)F-FDG PET. Nonetheless, a reduction in cardiac uptake of (18)F-FDG has been incidentally noted during ambient warming. This study examined the impact of seasonal variations in ambient temperatures on cardiac uptake of (18)F-FDG.