Execução de controle de qualidade semanal em tomógrafo: teste de ruído, uniformidade e exatidão

Abstract

In the hospital environment, there is a demand for carrying out checks to ensure that the devices used are operating correctly and providing images of good diagnostic quality, só that there are several possible tests to be carried out at different intervals, taking into account that the poor functionality of a device can severely affect the work routine of staff and examinations for patients. This work aims to verify the results of the weekly quality control test of the Toshiba Aquilion tomograph in a hospital in the region of the city of Curitiba, paying attention to the values of noise, uniformity and accuracy. The methodology of this research is based on weekly tests carried out over a year using two different phantoms, periodic records in a spreadsheet and comparison of the results obtained with the limits established by the current regulations for quality control in medical computed tomography systems. The application of the proposed tests led to the collection of data that made it possible to determine whether the device was operating correctly within the standards and fulfilling its diagnostic function.