Which modality does not require an imaging plate to form a digital image?

Which modality does not require an imaging plate to form a digital image?

• A. Magnetic Resonance Imaging
• B. Fluoroscopy
• C. Computed Radiography
• D. Direct Radiography

Answer: (D)

Direct Radiography uses a integrated digital detector that converts X-rays directly into a digital signal, forming the image without any separate imaging plate. In contrast, Computed Radiography relies on a photostimulable phosphor imaging plate that must be read out with a laser to release stored energy as light to create the image. Fluoroscopy and MRI also don’t use an imaging plate in the same way as CR, but among radiographic modalities, Direct Radiography is the one designed to produce a digital image without an imaging plate.

Direct Radiography uses a integrated digital detector that converts X-rays directly into a digital signal, forming the image without any separate imaging plate. In contrast, Computed Radiography relies on a photostimulable phosphor imaging plate that must be read out with a laser to release stored energy as light to create the image. Fluoroscopy and MRI also don’t use an imaging plate in the same way as CR, but among radiographic modalities, Direct Radiography is the one designed to produce a digital image without an imaging plate.