Reply #49: They probably need the angiography to see the metal.

[Gregorian]

I am guessing. Although I used to be a cardiac cath tech. So I'm pretty well versed in angiography. But this is an odd situation.
My guess is they need an accurate picture of where the shot is located. But then why wouldn't a cat scan work?

Hey, I thought this thing would blow up. At 78, little things snowball.