Question

List items of step wedge test and describe how to perform test? state importance of test and include columned maintenance schedule?

Answer 1

Answer: A high purity Aluminum step wedge used to evaluate the performance of the X-ray machine and the processing system.Step wedges can also be used in the calibration of X-ray machines,and are used as a quality assurance test in monitoring the film processing used in dental radiography.

Step wedge procedure: Place the step wedge over a film or sensor and position the X-ray field over the step wedge.Record the date,operators,X-ray machine,kVp.mA,exposure time,Source-To-time.This information will be necessary to conduct this test in the future.

Periodic test is important as a part of quality assurance program to maintain optimal diagnostic image quality with minimum hazard and distress to patients.The QA program includes periodic quality control tests,preventive maintenance procedures,administrative methods and training.