Big and Bashful wrote: ↑Fri Jul 22, 2022 5:12 pmToday I went for my first ever CT scan, I was told that if I wore clothing with no metal it would be much easier because I wouldn't have to change.
Generally speaking, CT scans -- which are X-ray based -- don't care too much about metal save for X-ray scattering.
It's MRI devices that have a problem with metal -- and it's not just ferrous metal like one would expect. Any metal at all if it's conductive (and most are) will have currents induced in it by the strength of the magnetic field in the machine. This causes them to become momentary magnets themselves, and the current can heat the metal in some rare instances to the point where it can cause burns.
I had an MRI done of my lower back in the very early 2000s after re-injuring my back from a 1989 injury -- and I wore a simple elastic-waist pull-on A-line skirt, one of my normal dress shirts, and an elastic to restrain my ponytail. I left my watches in the car, and my car-keys at the desk, and they simply loaded me into the barrel of the MRI device as I arrived. I may have had to kick my shoes off, though; I don't recall.. I found the audio "vocabulary" of the machine most fascinating indeed; It's not just bangs, it's little buzzes, the occasional beep, a pure tone of some specific frequency. Astonishing machines. I have the resulting imagery as my doctor didn't know how to read the MRI image and relied on the interpretation of the professional. In looking at the imagery myself, and with a read of the interpretation, I was astonished that even my untrained eye immediately spotted most of the stuff that the interpreter got stunningly right, and with good compositional skill, I'll add!