Development of Image Database for Kiken-yochi Training (KYT) in Radiology Practice

Kiken-yochi Training (KYT) has been introduced in many hospitals as medical safety education in many departments, with the exception of radiology. KYT is also not used in the contents of medical safety lectures in the education of students for radiological technologists. One of the reasons for this is that the images for KYT (KYT images) cannot be created at each hospital or easily obtained on the website. The purpose of this research is to construct a database of KYT images (KYTDB) that can be used for medical safety education at hospitals and educational facilities. We also investigate the usefulness of KYTDB in FROC observer experiments. The KYT images were taken in various scenarios of routine medical examination (or treatment) in the radiology department of the two hospitals. A total of 367 KYT images were taken in seven sections of the radiology department, some containing dangerous (inappropriate) locations and languages, and some containing normal scenes. In addition, educational training materials in PowerPoint with audio were created for self-study of KYT. A FROC observer study was conducted using sample images extracted from the KYTDB that were not used in the educational materials, and figures of merit values were used to quantify the predictive risk reduction capacity of KYT. The results demonstrated that the KYTDB is useful for KYT education.