User-friendly tools on hand-held devices for observer performance study
User-friendly tools on hand-held devices for observer performance study
复制标题
手持设备上的用户友好工具，用于观察者性能研究
DOI：
10.1117/12.912307
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
H.Fujita
中科院分区：
文献类型：
--
作者：
T.Matsumoto;T.Hara;J.Shiraishi;H.Abe;X.Zhou;H.Fujita
ROC研究需要复杂的程序来从许多数据样本中选择病例，并在每个选定的病例中设置置信度以生成ROC曲线。在一些观察者表现研究中，研究人员必须开发具有特定图形用户界面(GUI)的软件，以获得读者的置信度。由于ROC研究可以针对不同的临床情况而设计，因此编制与每个ROC研究相对应的软件是一项艰巨的任务。在这项工作中，我们开发了一种软件，用于在观察者对iPhone、iPod Touch和iPad等微型个人手持设备进行研究期间记录置信度水平。为了确认我们的软件的功能，三位放射科医生利用日本放射技术学会公布的公共胸部X线片数据库进行了观察者研究，以检测肺结节。文本格式的输出与芝加哥大学著名的ROC试剂盒的格式一致。每个案例所需的阅读时间都被非常准确地记录下来。
ROC studies require complex procedures to select cases from many data samples, and to set confidence levels in each selected case to generate ROC curves. In some observer performance studies, researchers have to develop software with specific graphical user interface (GUI) to obtain confidence levels from readers. Because ROC studies could be designed for various clinical situations, it is difficult task for preparing software corresponding to every ROC studies. In this work, we have developed software for recording confidence levels during observer studies on tiny personal handheld devices such as iPhone, iPod touch, and iPad. To confirm the functions of our software, three radiologists performed observer studies to detect lung nodules by using public database of chest radiograms published by Japan Society of Radiological Technology. The output in text format conformed to the format for the famous ROC kit from the University of Chicago. Times required for the reading each case was recorded very precisely.