Kao E-Fong, Liu Gin-Chung, Lee Lo-Yeh, Tsai Huei-Yi, Jaw Twei-Shiun
Department of Medical Imaging and Radiological Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
Department of Medical Imaging, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan.
Acta Radiol. 2015 Jun;56(6):696-701. doi: 10.1177/0284185114538017. Epub 2014 Jun 19.
The ability to give high priority to examinations with pathological findings could be very useful to radiologists with large work lists who wish to first evaluate the most critical studies. A computer-aided detection (CAD) system for identifying chest examinations with abnormalities has therefore been developed.
To evaluate the effectiveness of a CAD system on report turnaround times of chest examinations with abnormalities.
The CAD system was designed to automatically mark chest examinations with possible abnormalities in the work list of radiologists interpreting chest examinations. The system evaluation was performed in two phases: two radiologists interpreted the chest examinations without CAD in phase 1 and with CAD in phase 2. The time information recorded by the radiology information system was then used to calculate the turnaround times. All chest examinations were reviewed by two other radiologists and were divided into normal and abnormal groups. The turnaround times for the examinations with pathological findings with and without the CAD system assistance were compared.
The sensitivity and specificity of the CAD for chest abnormalities were 0.790 and 0.697, respectively, and use of the CAD system decreased the turnaround time for chest examinations with abnormalities by 44%.
The turnaround times required for radiologists to identify chest examinations with abnormalities could be reduced by using the CAD system. This system could be useful for radiologists with large work lists who wish to first evaluate the most critical studies.
对于工作量大且希望首先评估最关键检查的放射科医生而言，能够高度优先处理有病理结果的检查可能非常有用。因此，已开发出一种用于识别胸部异常检查的计算机辅助检测（CAD）系统。
评估CAD系统对有异常的胸部检查报告周转时间的有效性。
CAD系统旨在自动标记放射科医生解读胸部检查的工作列表中可能存在异常的胸部检查。系统评估分两个阶段进行：在第一阶段，两名放射科医生在无CAD的情况下解读胸部检查；在第二阶段，在有CAD的情况下解读。然后使用放射学信息系统记录的时间信息来计算周转时间。所有胸部检查均由另外两名放射科医生复查，并分为正常组和异常组。比较了在有和没有CAD系统辅助的情况下有病理结果的检查的周转时间。
CAD对胸部异常的敏感性和特异性分别为0.790和0.697，使用CAD系统使有异常的胸部检查的周转时间减少了44%。
使用CAD系统可以缩短放射科医生识别有异常的胸部检查所需的周转时间。该系统对于工作量大且希望首先评估最关键检查的放射科医生可能有用。
