Compared with Direct Radiography, Computed Radiography requires which step?

Compared with Direct Radiography, Computed Radiography requires which step?

• A. Immediate conversion by detector
• B. Processing the imaging plate in a reader
• C. No processing needed
• D. Extra exposure

Answer: (B)

Computed radiography uses a reusable imaging plate that records energy and must be read out to produce a digital image. After exposure, the plate is driven into a CR reader where a laser scans the plate, releases stored light, and a detector converts that light into a digital image. That processing step—reading the plate in a dedicated reader—is what sets CR apart from direct radiography, which outputs a digital image immediately from the detector with no separate reading stage. So the required step for CR is processing the imaging plate in a reader. The other options don’t fit: immediate conversion by detector describes DR; no processing needed is incorrect because CR does require a reader step; extra exposure isn’t part of the difference between CR and DR.

Computed radiography uses a reusable imaging plate that records energy and must be read out to produce a digital image. After exposure, the plate is driven into a CR reader where a laser scans the plate, releases stored light, and a detector converts that light into a digital image. That processing step—reading the plate in a dedicated reader—is what sets CR apart from direct radiography, which outputs a digital image immediately from the detector with no separate reading stage. So the required step for CR is processing the imaging plate in a reader. The other options don’t fit: immediate conversion by detector describes DR; no processing needed is incorrect because CR does require a reader step; extra exposure isn’t part of the difference between CR and DR.