The perceptions of patients attending for a computed tomography (CT) scan on radiation dose.

Abstract

Introduction Given the current debate about the possible increased cancer risk associated with diagnostic CT scans, it is important that the radiology community make current information regarding CT radiation dose more widely available. Purpose The purpose of this research study was to determine the awareness level concerning radiation dose and possible risks associated with CT scans amongst patients. The study also aimed to discover whether the patients wanted to be informed about these aspects or not. Methodology Fifty out- patients undergoing a CT scan at Mater Dei Hospital were surveyed before the acquisition of a CT scan. Patients were asked about the radiation doses involved, as well as about the possibility of radiation hazards. In addition, their willingness to be informed was also determined. Results Of the 48 participants who successfully handed in their questionnaire, 77.1% stated that they had previously heard about radiation risks, mentioning cancer, sterility and pregnancy as the principal radiation hazards. However, only 39.6% of the respondents had previously heard of radiation protection. In addition, 89.4% declared that someone should inform patients about this subject; with 54.4% indicating doctors as those responsible for this task. Conclusions Before being referred for a CT scan, patients should be better informed regarding radiation doses and risks, since it is the patient's ethical and medical right to be aware of the potential side-effects of the procedures applied to them.