Don't know about you Slim, but I still get things mixed up in the cardiac cycle as possibly did the AME.
I reckon I'd bet ya' a nights beer money that he heard a third heart sound.
But the important thing Chris, is that your scan results sound normal.
PS, never ceases to amaze me the old ticker- pumps out about 5litres a minute, every minute, for 70-80 years, without ever stopping and with minimal maintenance. Couldn't get owt like that at B+Q.