What does "repeat rate" measure in radiographic quality control?

Repeat rate measures the percentage of images that need to be retaken due to quality issues or errors in the initial exposure. This is a critical metric in radiographic quality control because it directly reflects the effectiveness of the imaging process. A high repeat rate indicates potential problems with technique, equipment, or operator proficiency that could compromise image quality, while a low repeat rate suggests that the imaging process is efficient and produces clinically acceptable results.

Monitoring the repeat rate allows facilities to identify areas that need improvement, such as training for staff, adjustments to equipment, or changes to protocols, all of which ultimately enhance patient safety and reduce unnecessary radiation exposure.