Radiology Flashcards
What artifact is this? How is it made and corrected?
Grid cutoff
What is this artifact? Fix?
Over exposure
Reduce technique
What is the artifact? Fix?
Paradoxic overexposure (greyscale is reversed)
IDR only
Decrease technique
Artifact? Fix?
Underexposure.
Lack of technique
Faulty tube
x-ray obstruction
Artifact? Fix?
Rebound or uberschwinger
Minimize edge enhancement
Artifact? Fix?
There are two rads in that image… one with the glove is the artifact and the one without it is normal.
Density threshold - metal object change the gray-scale to exclude your wanted anatomy .
Remove metal object
Artifact? Fix?
Up side down or distance decentered on a focused grid.
Artifact? Fix?
Calibration mask
You calibrated the detector with something in the way and so it is on there all the time.
Recalibrate
Artifact and fix?
Flipped detector - not back scatter
Artifact and fix?
Double exposure - usually CR
Artifact and fix?
Light leak - CR
Artifact and fix?
Roller artifact.
Call someone and get new film
Artifact and fix?
Faulty transfer
Retake film
Artifact and fix?
Moire - Sampling read at the level of the grid lines
Oscilate grid
Grid reduction algorithms
Grid oriented perpendicular to plate reader
