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Which of the following are true regarding the differences between computed and digital radiography? a. The detective quantum efficiency (DQE) is greater with digital radiography than with computed radiography b. The patient dose may be less with digital radiography than with computed radiography c. Spatial resolution is greater with digital radiography than with computed radiography d. Initial costs are greater with computed radiography e. Both demonstrate a wide dynamic range |
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Answer» a. True. b. True. This relates to differences in the DQE. c. False. When using high-resolution image plates and a narrow laser beam for stimulated emission, a higher resolution is achievable with computed radiography. d. False. They are greater with digital radiography, as each radio graphic machine needs its own detector, whereas with computed radiography the image plates may be used between existing machines. Costs may be saved later, however, as the patient throughput may be greater with digital radiography. e. True. |
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