Direct Radiography (DR) differs from CR in that it converts X-ray directly to a digital image without imaging plate. Which of the following is not needed in DR?

Direct Radiography (DR) differs from CR in that it converts X-ray directly to a digital image without imaging plate. Which of the following is not needed in DR?

• A. Direct digital detector
• B. Film
• C. Computer monitor
• D. Imaging plate

Answer: (D)

Direct radiography uses a direct digital detector that converts X-ray energy straight into a digital signal, which is then displayed on a computer monitor after processing. There is no imaging plate to store and later read the latent image, which is the distinctive feature of computed radiography. So the imaging plate isn’t part of the DR workflow. A direct digital detector is essential to capture the image, and a monitor is needed to view it. Film isn’t used in DR either, since the image is produced digitally, but the element that specifically differentiates DR from CR is the absence of the imaging plate.

Direct radiography uses a direct digital detector that converts X-ray energy straight into a digital signal, which is then displayed on a computer monitor after processing. There is no imaging plate to store and later read the latent image, which is the distinctive feature of computed radiography. So the imaging plate isn’t part of the DR workflow. A direct digital detector is essential to capture the image, and a monitor is needed to view it. Film isn’t used in DR either, since the image is produced digitally, but the element that specifically differentiates DR from CR is the absence of the imaging plate.