THE IMAGE QUALITY AND PATIENT DOSES IN SIMPLE RADIOGRAPHIC EXAMINATIONS: ESTABLISHING GUIDANCE LEVELS AND COMPARISON WITH INTERNATIONAL STANDARDS

摘要

The International Atomic Energy Agency (IAEA) mentioned in the International Basic Safety Series (BSS) Number 115 that the optimization of medical exposure should be considered in the terms of the image quality and the radiation dose the patient received. The guidance levels (GL) for medical exposure should be established as the intention to be an indication of doses for averaged size patients. It should be applied with flexibility to allow higher exposures with clinical judgments and should be revised as technology and technique improve. Poor image quality and using relatively high dose techniques result in unnecessary radiation exposure to patients. This paper purposed to initiate an immediate investigation into the reasons and to trigger appropriate corrective action. The retake analysis is the good indicator for the image quality which should be considered closely to the patient dose.