Development of digital rectangular phantoms for quality controls of medical primary monitors in RIS-PACS systems

A. Mattacchioni; M. Cristianini; A. Lo Bosco

doi:10.1117/12.2006352

28 March 2013 Development of digital rectangular phantoms for quality controls of medical primary monitors in RIS-PACS systems

A. Mattacchioni, M. Cristianini, A. Lo Bosco

Author Affiliations +

Proceedings Volume 8673, Medical Imaging 2013: Image Perception, Observer Performance, and Technology Assessment; 86731E (2013) https://doi.org/10.1117/12.2006352
Event: SPIE Medical Imaging, 2013, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

The purpose of this paper is to project digital rectangular phantoms, Di.Recta Multipurpose Phantoms (Di.Recta MP) for quality controls of primary high resolution medical monitors. The first approach for the monitors quality evaluation is represented by AAPM tests using multipurpose TG-18- CQ phantoms. The TG18-QC patterns are available in two sizes: 1024x1024 and 2048x2048 and the use of these phantoms requires a correct monitor setup. The study demonstrates that this type of phantoms is suitable for CRT monitors with adequate settings procedures. In the second step LCD monitors are analysed. Different types of primary monitors are included in a range between 2 and 5 Mp. The difference between the resolution of monitors and phantoms does not allow a complete analysis of the entire system, just moving phantoms in different positions. Of course, the analysis of images in the peripheral regions of medical monitors can not be neglected, especially because of the possible legal implications. A simpler analysis of these areas can be done through the use of rectangular phantoms in place of square ones. Furthermore, because of different technology, also different analysis patches are necessary for these types of monitors. Therefore, there are proposed digital rectangular phantoms, Di.Recta MP, compatible with the spatial resolution of most of commercial monitors. These phantoms are designed to simulate typical radiological conditions to determine the presence of significant defects using appropriate patches such as luminance, contrast, noise patterns. Finally a preliminary study of dedicate Di.Recta MP are proposed for LED monitors.

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A. Mattacchioni, M. Cristianini, and A. Lo Bosco "Development of digital rectangular phantoms for quality controls of medical primary monitors in RIS-PACS systems", Proc. SPIE 8673, Medical Imaging 2013: Image Perception, Observer Performance, and Technology Assessment, 86731E (28 March 2013); https://doi.org/10.1117/12.2006352

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KEYWORDS

LCDs

Light emitting diodes

Control systems

CRTs

Distortion

Medical imaging

Organic light emitting diodes

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