Krupinski Elizabeth A
Department of Radiology, University of Arizona, 1609 N. Warren Bldg 211 Rm 112, Tucson, AZ 85724, USA.
J Digit Imaging. 2009 Aug;22(4):363-8. doi: 10.1007/s10278-008-9156-6. Epub 2008 Sep 3.
The goal of this study was to compare diagnostic accuracy of radiologists viewing clinical images on a top-of-the-line medical-grade vs a top-of-the-line commercial off-the-shelf (COTS) color display with the luminance values set to simulate a display that had been in use for 1 year. A set of 50 digital radiography chest images was selected for use in the study, half containing a solitary pulmonary nodule and half nodule-free. The images were displayed twice to each of six observers, once on each display. Eye position was recorded on a subset of the images. Overall, there was a statistically significant difference (F = 4.1496, p = 0.0471) between the medical-grade color display and the COTS color display in terms of receiver operating characteristic area under the curve values, with the medical-grade display yielding higher diagnostic accuracy. Total viewing time did not differ significantly, but eye position data revealed differences, suggesting better search and decision-making efficiency with the medical-grade display. Medical-grade color displays at 1 year old yield better diagnostic and search efficiency than COTS color displays and thus are recommended for primary reading if color displays are to be used.
本研究的目的是比较放射科医生在顶级医学级彩色显示器与顶级商用现货（COTS）彩色显示器上查看临床图像时的诊断准确性，将亮度值设置为模拟已使用1年的显示器。选择了一组50张数字X线摄影胸部图像用于该研究，其中一半包含孤立性肺结节，另一半无结节。这些图像向六位观察者每人展示两次，每次在一种显示器上展示。在部分图像上记录了眼睛位置。总体而言，在曲线下面积的受试者工作特征方面，医学级彩色显示器和COTS彩色显示器之间存在统计学显著差异（F = 4.1496，p = 0.0471），医学级显示器具有更高的诊断准确性。总观看时间没有显著差异，但眼睛位置数据显示出差异，表明医学级显示器具有更好的搜索和决策效率。使用1年的医学级彩色显示器比COTS彩色显示器具有更好的诊断和搜索效率，因此如果要使用彩色显示器，建议将其用于初次阅片。
