Reliability Analysis and Research of Digital Radiography Equipment
Objective To study and analyze the reliability level of imported and domestic high-end digital radiography(DR)equipment in clinical application using a reliability verification scheme.Methods Data such as maintenance and work logs of three DR equipment(one imported and two domestic)within a certain period were extracted.The image performance parameters,core component status,reliability parameters,maintainability parameters and supportability parameters of the equipment were analyzed,and the performance test data and reliability level of the equipment were compared.Results The image performance of the three devices was stable,and all of them could meet the standard requirements.The state parameters of the core components basically maintained stable operation.The reliability parameters of imported equipment A and domestic equipment B were good,and the availability parameters of both equipment were greater than 95%.The fault time of domestic equipment C was relatively long,and its availability was in the range of 90%to 95%.The maintenance,supportability parameters of domestic equipment performed better.The average maintenance time was 67%faster than that of imported equipment,and the maintenance support delay time was more than 70%lower.Conclusion Based on the basic method of reliability verification,analyzing the reliability level of DR equipment in the clinical application process can provide an objective evaluation of the long-term stability of equipment for medical institutions.The results indicate that domestic high-end equipment with shorter operation time does not have an average reliability performance and shows a large difference from mature imported equipment.
medical imaging equipmentdigital radiographyreliabilityavailabilitymaintenance parametersupportability parameter
国家科技期刊平台
NSTL
万方数据
