The American Association of Physicists in Medicine (AAPM) Task Group 18 is a national task force consisting of medical imaging experts and organizational affiliates dealing with performance evaluation of electronic display devices. The purpose of the Task Group is to generate a document that provides guidelines to practicing medical physicists and engineers for in-field performance evaluation of electronic display devices intended for medical use. Some of the goals of the Task Group include:
- Standardization: providing standard testing methods for evaluating the performance of electronic display devices utilized in medicine, allowing inter- and intra-institutional comparisons
- Establishing performance criteria: recommending minimum performance requirements for safe utilization of electronic displays in medical and radiologic applications
- Education: educating medical physicists and other health-care professionals about display technology and display quality issues relevant to medical imaging
- Communication: facilitating communication between industry, medical physicists, researchers, and other individuals/organizations dealing with display quality characterization
- Professional: further expanding the role of medical physics in the growing area of PACS
The AAPM TG18's excellent report and valuable guide on the "Assessment of Display Performance for Medical Imaging Systems" can be found here (PDF, 12MB).
Further information about the AAPM TG18, links to downloadable test patterns and other valuable links can be found here.
The original system is composed (R-to-L in the picture to the left) of a Canon EOS D30 Digital SLR camera, a Leica Z6 APO long-distance microscope zoom lens, an iris diaphragm to control the field of view, and an in-line integrating sphere with a 3-watt lamp as a uniform light source - all horizontally mounted on a vibration-free optics table.