Ekpo Ernest U, McEntee Mark F
Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney, M205, Cumberland Campus, 75 East Street, Lidcombe, Sydney, NSW, 2141, Australia.
Department of Radiography and Radiology, University of Calabar, PMB 1115, Calabar, Nigeria.
J Digit Imaging. 2016 Apr;29(2):175-82. doi: 10.1007/s10278-015-9831-3.
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/m(2)), minimum luminance (0.724, 1.170, and 0.92 cd/m(2)), 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.
本研究的目的是对新的艺卓RX850液晶显示器进行全面评估，并将其与澳大利亚目前使用的两款医用显示器（艺卓GS510和巴可MDCG 5121）进行比较。美国医学物理学会（AAPM）任务组18质量控制测试图案用于评估三款高分辨率医用主显示器的性能：艺卓RX850、艺卓GS510和巴可MDCG 5121。使用柯尼卡美能达分光辐射度计（CS-2000）评估亮度响应、不均匀性、遮光眩光和颜色均匀性。还对噪声进行了定性评估。在每台显示器上显示七个乳腺病变，并使用校准后的550万像素奥林巴斯E-1数码单反相机进行拍摄。使用ImageJ软件从每个病变及其周围背景中采样像素信息，以计算它们在每台显示器上的可见度指数。所有显示器均符合AAPM验收标准。艺卓RX850、巴可MDCG 5121和艺卓GS510的性能特征分别如下：最大亮度（490、500.5和413cd/m²）、最小亮度（0.724、1.170和0.92cd/m²）、对比度（675:1、428:1、449:1）、最小可觉差指数（635、622、609）、不均匀性（20%、5.92%和8.5%）、遮光眩光（GR = 2465.6、720.4、1249.8）和颜色均匀性（Δu'v' = +0.003、+0.002、+0.002）。所有显示器的噪声水平都很低。艺卓RX850显示器上病变的可见度指数（χ）略高。所有医用显示器均符合AAPM性能标准，且艺卓RX850的性能特征等于或优于巴可MDCG 5121和艺卓GS510显示器。
