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An Evaluation of Performance Characteristics of Primary Display Devices

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Abstract

The aim of this study was to complete a full evaluation of the new EIZO RX850 liquid crystal display and compare it to two currently used medical displays in Australia (EIZO GS510 and Barco MDCG 5121). The American Association of Physicists in Medicine (AAPM) Task Group 18 Quality Control test pattern was used to assess the performance of three high-resolution primary medical displays: EIZO RX850, EIZO GS510, and Barco MDCG 5121. A Konica Minolta spectroradiometer (CS-2000) was used to assess luminance response, non-uniformity, veiling glare, and color uniformity. Qualitative evaluation of noise was also performed. Seven breast lesions were displayed on each monitor and photographed with a calibrated 5.5-MP Olympus E-1 digital SLR camera. ImageJ software was used to sample pixel information from each lesion and surrounding background to calculate their conspicuity index on each of the displays. All monitor fulfilled all AAPM acceptance criteria. The performance characteristics for EIZO RX850, Barco MDCG 5121, and EIZO GS510 respectively were as follows: maximum luminance (490, 500.5, and 413 cd/m2), minimum luminance (0.724, 1.170, and 0.92 cd/m2), contrast ratio (675:1, 428:1, 449:1), just-noticeable difference index (635, 622, 609), non-uniformity (20, 5.92, and 8.5 %), veiling glare (GR = 2465.6, 720.4, 1249.8), and color uniformity (Δu′v′ = +0.003, +0.002, +0.002). All monitors demonstrated low noise levels. The conspicuity index (χ) of the lesions was slightly higher in the EIZO RX850 display. All medical displays fulfilled AAPM performance criteria, and performance characteristics of EIZO RX850 are equal to or better than those of the Barco MDCG 5121 and EIZO GS510 displays.

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Abbreviations

M5121:

Barco MDCG5121

GS510:

EIZO GS510

RX850:

EIZO RX850

IPS:

In-plane switching

TFT:

Thin-film transistor

TFT AM LCD:

Thin-film transistor liquid crystal display

CT:

Computed tomography

MR:

Magnetic resonance

US:

Ultrasound

DR:

Digital radiography

CR:

Computed radiography

NM:

Nuclear medicine

FDA:

Food and Drug Administration

AAPM:

American Association of Physicists in Medicine

TG18:

Task Group 18

L max :

Maximum luminance

L min :

Minimum luminance

L amb :

Luminance in the presence of ambient lighting

LR:

Luminance ratio

CR:

Contrast ratio

JND:

Just-noticeable difference

GR:

Glare ratio

Δu′v′:

Color uniformity

L min + L amb :

Minimum luminance in the presence of ambient lighting

ACR–AAPM–SIIM:

Technical Standard for Electronic Practice of Medical Imaging

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Acknowledgments

The authors of this research would like to thank Professor Patrick Brennan for providing the spectroradiometer and digital camera used for this study.

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Authors and Affiliations

  1. Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney, M205, Cumberland Campus, 75 East Street, Lidcombe, Sydney, NSW, 2141, Australia

    Ernest U. Ekpo & Mark F. McEntee

  2. Department of Radiography and Radiology, University of Calabar, PMB 1115, Calabar, Nigeria

    Ernest U. Ekpo

Authors
  1. Ernest U. Ekpo
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  2. Mark F. McEntee
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Correspondence to Ernest U. Ekpo.

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Ekpo, E.U., McEntee, M.F. An Evaluation of Performance Characteristics of Primary Display Devices. J Digit Imaging 29, 175–182 (2016). https://doi.org/10.1007/s10278-015-9831-3

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