When can a technologist reuse the computed radiography (CR) receptor after the appearance of a ghost image?

When can a technologist reuse the computed radiography (CR) receptor after the appearance of a ghost image?

• A. After it's been cleaned
• B. After it's thoroughly erased on a functioning CR reader
• C. Immediately, since the ghost image is gone
• D. After 24 hours of nonuse

Answer: (B)

Ghost images show up when the photostimulable phosphor plate hasn’t been fully erased, leaving a residual latent image from a previous exposure. To reuse the receptor safely, you must run a proper erase cycle on a functioning CR reader. This erases all trapped electrons and resets the plate so no residual signal remains to create a ghost image in the next exam. Cleaning the plate removes surface contaminants but does not erase the stored image data, so it won’t prevent ghosting. Waiting 24 hours won’t magically remove the stored information, since the latent image is trapped inside the phosphor and requires the reader’s erasure process. After an appearance of a ghost image, performing a thorough erase on a healthy CR reader is the correct step before reuse.

Ghost images show up when the photostimulable phosphor plate hasn’t been fully erased, leaving a residual latent image from a previous exposure. To reuse the receptor safely, you must run a proper erase cycle on a functioning CR reader. This erases all trapped electrons and resets the plate so no residual signal remains to create a ghost image in the next exam. Cleaning the plate removes surface contaminants but does not erase the stored image data, so it won’t prevent ghosting. Waiting 24 hours won’t magically remove the stored information, since the latent image is trapped inside the phosphor and requires the reader’s erasure process. After an appearance of a ghost image, performing a thorough erase on a healthy CR reader is the correct step before reuse.