A PRACTICAL APPROACH TO A QUALITY ASSURANCE PROGRAM FOR RADIOGRAPHY AT THE CONSTANCY CHECK LEVEL

Quality Assurance may easily be divided into a number of levels, each requiring a different type of scientific/technical surveillance. In the case of equipment whose status has been established by rigorous acceptance testing the requirement of a Quality Assurance programme, in practice, is to ensure that the installation has not departed from this acceptable level. Thus on a day to day basis Quality Assurance programmes may be reduced to having a simple set of tests, or 'constancy checks', to ensure that the status of equipment has not changed since it was established to be acceptable. This communication describes a routine Quality Assurance programme based on such an approach. In addition, it is closely integrated into the routine management structure of the Imaging Department, so that the consequences of findings in the measurements give rise to the administrative or management actions required when corrective action needs to be taken.