Impression:
No fixed or reversible perfusion abnormalities detected at the high cardiac workload achieved. Post test probability of CAD is very low.
Note:
Fixed reduced uptake in the apex is more prominent in the rest study (arrows) -- normal variant (apical thinning).
Low uptake in the septum close to the base (colored arrows) -- normal variant (short septum).
Minimal difference in septum uptake is due to imperfect alignment.
Perfect alignment is almost impossible to obtain. The effects of imperfect alignment will be apparent where the myocardium ends, i.e. in the septum and the base.