Borders must be visible, lines Weekly Display the TG18-QC test pattern. Control chart showing: Monitor QC (monitors used must be straight, squares must Ensure viewing conditions are Date test performed. for appear square, the ramp bars acceptable. Person performing test. interpretation should appear continuous without Use window-width set to and attached any contour lines, there should be Monitor identification. maximum and window-level set to to the no smearing or bleeding at Monitor settings (window and level). half of maximum. acquisition transitions, all corner workstation) patches must be visible, squares A record of at least the last 25 Check visibility and distortion of of different shades from black to results. several items used for evaluating white must be distinct, all high the quality of the image. Baseline values. contrast resolution patterns and Check for disturbing artefacts. two low contrast patterns must Remarks regarding corrective actions be visible in all four corners and in and baseline changes. the centre, the 5% and 95% pixel value squares must be clearly visible, pattern should be centred in the active area and no disturbing artefacts should be visible on the displayed TG18-QC test pattern. The number of letters visible in the phrase Control” for “Quality the dark, mid-grey and light renditions should be ≥11. Printer area Clean and dust free environment Weekly Wet cleaning of printer area floor Records confirm: cleanliness and open shelves. Date performed (if applicable) Inspect and air intake filters Person performing task on the film printer.
Monitor QC (monitors used for interpretation and attached to the acquisition workstation) Borders must be visible, lines must be straight, squares must appear square, the ramp bars should appear continuous without any contour lines, there should be no smearing or bleeding at transitions, all corner patches must be visible, squares of different shades from black to white must be distinct, all high contrast resolution patterns and two low contrast patterns must be visible in all four corners and in the centre, the 5% and 95% pixel value squares must be clearly visible, pattern should be centred in the active area and no disturbing artefacts should be visible on the displayed TG18-QC test pattern. The number of letters visible in the phrase “Quality Control” for the dark, mid-grey and light renditions should be ≥11. Weekly Display the TG18-QC test pattern. Ensure viewing conditions are acceptable. Use window-width set to maximum and window-level set to half of maximum. Check visibility and distortion of several items used for evaluating the quality of the image. Check for disturbing artefacts. Control chart showing: Date test performed. Person performing test. Monitor identification. Monitor settings (window and level). A record of at least the last 25 results. Baseline values. Remarks regarding corrective actions and baseline changes. Printer area cleanliness (if applicable) Clean and dust free environment Weekly Wet cleaning of printer area floor and open shelves. Inspect and air intake filters on the film printer. Records confirm: Date performed Person performing task
BSA%20NAS%20com_endorsed%20by%20SCoS%20Oct.docx