TG18 test patterns can be used to evaluate the performance of medical display devices. TG18 test patterns are a part of the larger display assessment methodology developed by TG18 (Technical Group 18) of the AAPM.

The most important test pattern, the TG18-QC test pattern, is based on the original SMPTE test pattern. The TG18-QC pattern is widely used to provide an overall assesment of a monitor's adjustment and calibration.

Sample image derived from the "Assessment of Display Performance for Medical Imaging Systems" report (AAPM On-line report No 3), published in 2005 and available at: http://www.aapm.org/pubs/reports/OR_03.pdf

An executive summary of the report is available at: http://deckard.mc.duke.edu/~samei/tg18_files/tg18ExS.pdf

The Task Group 18 home page is: http://deckard.duhs.duke.edu/~samei/tg18.htm