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Concerning quality assurance in digital radiography: a. Post-imaging processing removes the requirement for quality assurance b. There are no guidelines for the recommended specification of the display device required for diagnostic reporting c. Image display devices should undergo resolution and grey-scale contrast ratio monitoring every 3 months d. Sub optimal images may be restricted on PACS from general clinical viewing until they have been quality assured e. The consistent presentation of images is implemented using the grey-scale standard display function (GSDF) |
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Answer» a. False. It is still required. b. False. The Royal College of Radiologists (RCR) IT guidance (Picture archiving and communication systems (PACS) and quality assurance, 2008) recommends an ideal screen resolution of 3 megapixels and a screen size of at least 50 cm with at least a 10-bit grey scale. c. True. See the RCR IT guidance (Picture archiving and communication systems (PACS) and quality assurance, 2008). d. True. e. True. This is a standard look-up table against which different display devices should be calibrated to allow for varying device performances. |
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