Which statement about image quality evaluation in PACS is most accurate?

• A. It is a routine QC step that can reveal issues with acquisition, processing, or display.
• B. It is optional and rarely used.
• C. It applies only to physical film imaging.
• D. It should happen only after patient discharge.

Answer: (A)

Evaluating image quality in PACS is a routine quality assurance step that helps ensure diagnostic images are usable across the entire workflow—from how the image was captured, through how it’s processed, to how it’s displayed. This kind of QA can reveal problems at multiple points: acquisition issues like wrong exposure or patient motion; processing problems such as reconstruction settings or window/level adjustments that degrade the image; and display issues like uncalibrated monitors or incorrect rendering that affect interpretation. Because digital imaging relies on coordinated performance of equipment, software, and display, regular image quality checks are standard practice and critical for consistent, accurate diagnoses.

The other statements don’t fit because QA isn’t optional or rarely used, digital imaging isn’t limited to physical film, and quality evaluation should occur during the workflow rather than only after discharge.