Source : Webster's Revised Unabridged Dictionary (1913)

Fluoroscopy \Flu`or*os"co*py\, n.
   Examination of an object, as the human body, by exposing it
   to the X rays and observing the shadow cast upon a
   fluorescent screen; cryptoscopy.

Source : WordNet®

fluoroscopy
     n : examination of body structures using a fluoroscope