Which QA activity involves evaluating image quality against predefined criteria during QA?

Which QA activity involves evaluating image quality against predefined criteria during QA?

• A. Calibration
• B. Phantom testing
• C. Image evaluation
• D. Exposure reproducibility

Answer: (C)

Evaluating image quality against predefined criteria during QA is image evaluation. This step focuses on the actual images produced, checking them against established standards or a scoring system to determine if the quality meets diagnostic requirements. Calibration, on the other hand, is about adjusting the system to meet technical performance specs rather than judging the produced images against criteria. Phantom testing uses a known object to assess overall system performance, including image quality, but its main aim is to quantify that performance with a standardized phantom rather than routinely evaluating clinical images against criteria. Exposure reproducibility looks at consistency of exposures across repeated acquisitions, emphasizing dose and exposure stability rather than direct image quality assessment. So, image evaluation best fits the description.

Evaluating image quality against predefined criteria during QA is image evaluation. This step focuses on the actual images produced, checking them against established standards or a scoring system to determine if the quality meets diagnostic requirements. Calibration, on the other hand, is about adjusting the system to meet technical performance specs rather than judging the produced images against criteria. Phantom testing uses a known object to assess overall system performance, including image quality, but its main aim is to quantify that performance with a standardized phantom rather than routinely evaluating clinical images against criteria. Exposure reproducibility looks at consistency of exposures across repeated acquisitions, emphasizing dose and exposure stability rather than direct image quality assessment. So, image evaluation best fits the description.