Survey Effect of the Corrective Actions and Quality Control in Image Quality and Patient Dose in Radiography Examinations

Objectives: X-ray exposure in medicine is considered to be the majorpart in man-made radiation. The purpose of this study was to survey theeffect of optimization in image quality and entrance skin dose forpatients in radiographic examinations.Methods: In this survey, seven radiographic examinations werestudied. First, patient dose of radiation was measured and the quality ofthe radiography images was considered. Also, the number and causes ofrejected films were checked. Then, corrective action of the EuropeanCommission (EC) was implemented and quality control of radiologyequipment was performed. Once more, patient radiation dose, quality ofradiographic images and number and cause of rejected films wereanalysed.Results: The image quality was not convenient before correctiveactions. With implementation of the corrective actions, the quality ofradiographic images was increased so that it was statically significant.Total rejections in all types of radiographies were 18.33% and 11.17%,respectively, before and after improvements. Entrance Skin Dose forpatients was 1.59 mGy before improvements and 1.21 mGy afterimprovements.Conclusion: The result of this survey demonstrated that it’spossible to implement a program for coordination of protectionoptimization in general radiology. After implementing thecorrective actions for optimization of protection, the radiation dosedecreased with clinically acceptable images as well as with thenumber of rejected films. This decreased dose can reducecumulative dose, which reduces probability of cancer risk andgenetic effects in society.

کلیدواژه ها:

Radiological examination ، Entrance skin dose ، Image quality ، Rejected film ، P-value