"Marching soldiers" ?

I’m just writing up some of my CPD notes and came across this entry ; “Calcification in arteries is heard with a Doppler – ‘marching soldiers’ sound” I can’t recall what this sounds like or if I have even heard it. Can anyone give any more info on this? I’ve googled “marching soldiers” and not found anything relevant

I’m just writing up some of my CPD notes and came across this entry ; “Calcification in arteries is heard with a Doppler – ‘marching soldiers’ sound” I can’t recall what this sounds like or if I have even heard it. Can anyone give any more info on this? I’ve googled “marching soldiers” and not found anything relevant

Taken from:
"Marching soldiers" ?