Improved phantom for quality control of laser scanner digitizers in PACS

Ethan J. Halpern M.D.; Peter D. Esser

doi:10.1117/12.45161

1 May 1991 Improved phantom for quality control of laser scanner digitizers in PACS

Ethan J. Halpern M.D., Peter D. Esser

Proceedings Volume 1444, Medical Imaging V: Image Capture, Formatting, and Display; (1991) https://doi.org/10.1117/12.45161
Event: Medical Imaging '91, 1991, San Jose, CA, United States

Abstract

Various quality control (QC) procedures may be used to evaluate image quality for picture archival and communications (PACS) systems. A standard PACS QC protocol, applied on a regular basis is desirable to insure optimal diagnostic performance. We describe a QC phantom designed especially to test PACS systems performance. We describe a QC phantom designed especially to test PACS systems that acquire images by digitizing x-ray films. The phantom is a sheet of x-ray film upon which a digital test pattern is printed. Multiple parameters of image quality are tested, including resolution, contrast, gray scale, geometric distortion and noise. Individual test patterns are incorporated to detect specific artifacts of laser scanner digitizers. As part of a regular QC protocol, the phantom provides an objective measurement of change in digital image quality over time, as well as an objective means for comparison with other systems.

Citation Download Citation

Ethan J. Halpern M.D. and Peter D. Esser "Improved phantom for quality control of laser scanner digitizers in PACS", Proc. SPIE 1444, Medical Imaging V: Image Capture, Formatting, and Display, (1 May 1991); https://doi.org/10.1117/12.45161

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