A graphical object display improves anesthesiologists' performance on a simulated diagnostic task
A graphical object display improves anesthesiologists' performance on a simulated diagnostic task
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DOI：
10.1023/a:1009914019889
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发表时间：
1999-01-01
影响因子：
2.2
通讯作者：
Whalen, K
中科院分区：
文献类型：
--
作者：
Blike, GT;Surgenor, SD;Whalen, K
Objective.本研究检验了图形对象显示（由有意义的形状组成的数据显示）将影响麻醉师快速正确执行诊断任务的能力的假设。研究的诊断任务是识别和鉴别休克-过敏反应、心动过缓、心肌缺血、血容量不足、肺栓塞的病因。方法.针对ve个电击状态和ve个非电击状态生成了由HR、体循环动脉BP、肺动脉BP、CVP和心输出量组成的数据集。将得到的10个数据集呈现在计算机显示器上，以研究受试者两次（首先以字母数字格式，然后以对象格式），总共20个决策屏幕。受试者使用计算机触摸屏监视器上的软按钮：a）前进到下一个显示; B）区分非电击状态和电击状态;以及，c）选择显示器所代表的电击状态的病因（图2）。数据收集是自动的，使用计算机的内部时钟和存储器。结果11名麻醉师参与了这项研究。他们总共完成了3060个诊断决策，每种显示格式各占一半。性能指标为决策时间和诊断准确性。物体显示器使无休克识别提高了1.0秒，使休克病因确定提高了1.4秒（p < 0.05）。物体显示还显著提高了休克识别的准确性1.4%和病因确定的准确性4.1%（p < 0.05）。测试在以下时间间隔内完成
Objective. This study tests the hypothesis that a graphical object display (a data display consisting of meaningful shapes) will affect the ability of anesthesiologists to perform a diagnostic task rapidly and correctly. The diagnostic tasks studied were recognition and differentiation of ve etiologies of shock - anaphylaxis, bradycardia, myocardial ischemia, hypovolemia, pulmonary embolus. Methods. Data sets consisting of HR, Systemic Arterial BP, Pulmonary Arterial BP, CVP, and Cardiac Output were generated for ve shock states and ve non-shock states. The resulting 10 data sets were presented on a computer monitor to study subjects twice ( rst in an alpha-numeric format and then in the object format) for a total of twenty decision screens. Subjects used soft-buttons on a computer touch-screen monitor to: a) advance to the next display; b) differentiate a nonshock state from a shock state; and, c) select the etiology of shock state represented by the display (Figure 2). Data collection was automatic, using the internal clock and memory of the computer. Results. Eleven anesthesiologists participated in this study. They completed a total of 3060 diagnostic decisions, half with each display format. Performance measures were time to decision and diagnostic accuracy. The object display improved no-shock recognition by 1.0 second and shock etiology determination by 1.4 seconds (p < 0.05). The object display also significantly improved accuracy for shock recognition by 1.4% and etiology determination by 4.1% (p < 0.05). Testing was completed in a time interval of