Beard D V, Pisano E D, Denelsbeck K M, Johnston R E
Department of Radiology, University of North Carolina School of Medicine, Chapel Hill 27599-7510.
J Digit Imaging. 1994 Nov;7(4):189-92. doi: 10.1007/BF03168538.
Stacked displays hold the potential for accurate interpretation of multiple computed tomography (CT) studies on a low-cost workstation. But can such a display scroll as quickly as radiologists can move their eyes to the next image on a film? To address this question, eye-movement duration during CT chest interpretation was recorded using an electronic eye tracker. Adjacent eye movements (+/- 1 image in sequence) averaged 0.54 seconds. Time motion analysis indicates that a CT workstation using a stacked approach with a 0.2-second image display time and a simple interaction can display the next image in less than 0.4 seconds, so a stacked approach should allow a low-cost workstation to facilitate acceptable interpretation of multiple CT or magnetic resonance studies. However, nonadjacent eye movements is likely to take longer and radiologist behavior may be effected.
堆叠式显示器有望在低成本工作站上对多个计算机断层扫描（CT）研究进行准确解读。但是，这样的显示器滚动速度能像放射科医生在胶片上快速移动视线到下一张图像那样快吗？为了解决这个问题，使用电子眼动追踪器记录了胸部CT解读过程中的眼动持续时间。相邻眼动（按顺序±1张图像）平均持续0.54秒。时间动作分析表明，采用堆叠方式且图像显示时间为0.2秒并具有简单交互功能的CT工作站能够在不到0.4秒的时间内显示下一张图像，因此堆叠式方法应能让低成本工作站便于对多个CT或磁共振研究进行可接受的解读。然而，非相邻眼动可能需要更长时间，并且放射科医生的行为可能会受到影响。
