RESUMO
Objective: To analyze and research detection data of radioactivity performance of digital radiography (DR) equipment so as to provide reference for purchasing DR equipment in hospital. Methods: Through collected the analysis results of detection data of quality control of 153 DR equipment of third level 1st class hospital, third level 2nd class hospital and county level hospital of Yunnan province. The comparison analysis about these DR equipments depended on the hospital type, nationality of equipment and duration of service. Results: There were 50 DR equipment and 103 DR equipments in the third level 1st class hospital and the third level 2nd class hospital, respectively. And in the third level 1st class hospital, there was 79.17% of DR equipments was imported equipment, while it was 51.45% in the third level 2nd class hospital. Besides, the duration of service of the most of DR equipments was 0-4yeras in the third level 2nd class hospital, while it was 5-7 years in the third level 1st class hospital. Conclusion: Most of the DR equipments in the third level 1st hospitals are imported equipment, and their duration of service were longer. On the other hand, in the comparison between imported equipment and domestic equipment, there are a certainly gap in quality stability, reliability and other aspects.