- 期刊
應用NASA-TLX量表評估電腦斷層造影訓練之心智負荷
Using the NASA Task Load Index Scale to Evaluate the Cognitive Workload in Computed Tomography Training Program
摘要
人員心智負荷，不僅影響在技能學習表現上，也反應在工作行為表現。本文針對二年期醫事放射師訓練計畫的電腦斷層造影課程，應用NASA-TLX量表（NASA Task Load Index）分析完訓後及受訓中的醫事放射師心智負荷（mental workload）程度。結果顯示六位醫事放射師心智負荷平均值7.181±0.801，負荷程度是在中度以上；其各向度指標平均值以自我表現1.730±0.623最高，其次依序為心智需求為1.613±0.731、努力1.332±0.550；其中以已完訓尚未輪值CT檢查室的人員心智負荷最高7.847±0.396。進一步分析受訓學員在面對CT檢查任務時的心智負荷各向度來源，主要來自影像後處理，其次是醫令單評估、病人搬運、控制台作業等。建議課程教學負責人與臨床教師可藉由NASA-TLX量表評估學員在學習新技能過程中的認知困擾，協助課程規劃與補強教學，提升學員的學習績效與在實務操作層面的適應能力，降低醫療不良事件發生可能性。
並列摘要
The mental workload of the staff not only affects the performance of the skills, but also reflects the performance of the work. In this article/paper, the Computer Tomography course for the two-year medical radiologist technologist Training Program is applied to analyze the mental workload level of the medical radiologist technologist after training and the NASA Task Load Index. The results showed that the average mental workload of the six medical radiologist technologist was 7.181±0.801, and the degrees of load was above moderate; the mean of own performance was 1.730±0.623, which was the highest, followed by the mental demand 1.613±0.731 and Effort 1.332±0.550; among them, the highest mental workload of those who have completed the training but have not work on the shift at CT examination room was 7.847±0.396. Further analysis of the trainees' source of mental burden on the CT inspection task was mainly from the medical order evaluation, followed by images post-processing, patient handling, and CT scanner operations. It is suggested that the person in charge of course and the instructors of teaching and clinic could use the NASA-TLX scale to assess the students’ cognitive problems in the process of new skills learning, assist in the curriculum planning and reinforcement of teaching, and enhance the learning performance and adaptability of students in the practical operation level to decrease the possibility of medical adverse.