The Study of DSA Quality Control

Objective By periodically performing DSA characteristics measurement,we obtain the regular pattern from the data,then ensure the optimal performance.Methods By utilizing independent sample t test to analyze the data sample derived from equipments of the same type and the same company.Results the workload difference would hence lead to a prominent distinction of the measurement data such as air kerma rate and tube voltage precision(P0.01).Conclusion quality control is of great importance to the assessment and maintenance of the actual performance of DSA.