Abstract
A variety of human errors have emerged in association with radiological technology as the field becomes increasingly sophisticated and diversified. We surveyed 553 radiological technologists in Gunma prefecture on errors they had committed during general and mobile x-ray exams, CT and MRI exams and used morphological analysis (WinCha2000) to extract words and determine the frequency of their appearance in the questionnaire results. The results of cluster analysis and dendrogram showed "exam", and "patient" for general exams, in order of frequency. Cause of error results were "confirm", and "lack of". For mobile exams, the results were "exam", and "patient", with cause of error results "confirm", and "lack of". The results of cluster analysis and dendrogram showed "taking the x-ray exam", and "exam" for CT exams, in order of frequency. Cause of error results were "confirm", and "lack of". For MRI exams, the results were "exam", and "patient", with cause of error results "confirm", and "patient". We used these extracted words to qualitatively analyze the conditions contributing to error.