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Objective of the Case
1. Recognize artifact
2. identify cause
3. discuss prevention
Information provided to Candidate
Written instructions to:
1. describe the artifact
2. give its cause and
3. describe prevention where applicable
Additional, verbal information given to the candidate: “This is a CR image.”
See image below. Click to enlarge.
Findings Expected from Candidate
Summary of Overall Candidate Performance
The question was worth a total of 6 points. The average score was 4.45/6.0 or 74%. Most candidates were able to identify the double image. Some candidates believed the double image to be caused by double exposure or scatter radiation.
©2013 American College of Veterinary Radiology