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The efficacy of a continuous quality improvement (CQI) method in a radiological department. Comparison with non-CQI
J Laurila1, C G Standertskjöld-Nordenstam, I Suramo
1Department of Radiology, Oulu University Central Hospital, Finland.
Objective:
To study the efficacy of continuous quality improvement (CQI) compared to ordinary management in an on-duty radiology department.
Material And Methods:
Because of complaints regarding delivery of on-duty radiological services, an improvement was initiated simultaneously at two hospitals, at the HUCH (Helsinki University Central Hospital) utilising the CQI-method, and at the OUH (Oulu University Hospital) with a traditional management process. For the CQI project, a team was formed to evaluate the process with flow-charts, cause and effect diagrams, Pareto analysis and control charts. Interventions to improve the process were based on the results of these analyses.
Results:
The team at the HUCH implemented the following changes: A radiologist was added to the evening shift between 15:00-22:00 and a radiographer was moved from the morning shift to 15:00-22:00. A clear improvement was achieved in the turn-around time, but in the follow-up some of the gains were lost. Only minimal changes were achieved at the OUH, where the intervention was based on traditional management processes.
Conclusion:
CQI was an effective method for improving the quality of performance of a radiology department compared with ordinary management methods, but some of this improvement may be subsequently lost without a continuous measurement system.