Fluoroscopy vs fluorography

Last revised by Andrew Murphy on 1 Feb 2021

Fluoroscopy and fluorography are very similar imaging techniques and, in many instances, can be performed on the same equipment.

Fluoroscopy vs fluorography

  • low current (0.5-5 mA), continuous or near-continuous x-ray exposures
  • relatively low signal to noise ratio (SNR)
  • prioritises temporal resolution for procedures
  • 512 x 512 pixel matrix with 8-bit greyscale
  • real-time imaging viewed on a display monitor in the clinical room
  • relatively intense (50-1000 mA), pulsed x-ray exposure (pulses are of short duration and applied at 1-12 pulses/second)
  • relatively high SNR
  • prioritises spatial resolution for diagnostic purposes
  • 1024 x 1024 pixel matrix with 10-bit greyscale
  • images usually viewed after acquisition

See also

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