RAD 354 Chapt. 30 Digital QC Performance Assessment Standards Luminance Meter Digital Display QC QC by Technologist

Performance Assess. Standards SMPTE (Society of Motion Picture and TV Engineers) – ACR has adopted the SMPTE “pattern” for digital QC (how things are displayed on the monitor) NEMA-DICOM – ACR and NAT. Electrical Manufactures Assoc. Standard for DICOM – Digital Imaging and Communication in Medicine (“gray scale” display function - GSDF

Perf. Assess. Standards Con’t German standards institution – Image Quality Assurance in X-ray Diagnostics: Acceptance Testing for Image Display Devices (DIN 2001) Video Electronics Standard Association (VESA) Am. Assoc. of Physicists in Medicine (AAPM) 18 measurements & observations for digital display devices

Luminance Meter Uniformity measurements of luminance response – requires a PHOTOMETER – Distance (measure light at a distance) – Near range = close proximity

Digital Device QC Uses the AAPM (Am. Assoc. of Physicists in Medicine) 18 patterns for QC tests – Geometric distortion – Reflection luminance response – Display resolution – Display noise Should be viewed daily