Investigation and analysis on frequencies of radiological diagnosis in medical institutions in Nanjing in 2017

Objective: To preliminarily analyze the general situation of radiological diagnosis in Nanjing and to estimate application frequency of common radiological diagnosis and CT scan in Nanjing by sampling survey of 26 medical institutions. Methods: Medical institutions in Nanjing were divided into three layers and then 26 medical institutions were randomly selected and their information including institutional grade, diagnostic equipment, number of radiological diagnosis examination in 2017 and so on was collected by issuing the unified questionnaires. Results: There were 1043307 common radiographic diagnostic examinations in the 26 medical institutions, accounting for 15.76% of the total number of outpatient and emergency visits. The proportions in primary hospital, secondary hospital and tertiary hospital were difference (P < 0.05), and the proportion of secondary hospital was the highest (32.17%). The proportions of general X-ray diagnosis in the number of common radiographic diagnostic examinations were the highest in all grade hospitals. CT scans were all distributed in secondary hospital and tertiary hospital, accounting for 25.82% of the total number of radiographic diagnoses. The proportions of radiographic examinations in the number of general X-ray diagnostic examinations exceeded 97% in secondary hospital and tertiary hospital. The proportions (27.72%) of fluoroscopy in the number of general X-ray diagnosis in primary hospitals was higher than that in tertiary and secondary hospitals. The frequency of common radiological diagnosis was estimated at 954 per 1000 persons, and 246 per 1000 persons for CT scans. Conclusion: It is necessary to pay more attention to the allocation of medical resources, and strengthen the supervision and management of radiological health, and ensure the legitimacy of radiological diagnosis in order to adapt to the development of radiological diagnosis in Nanjing. (authors)