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1 Polish Journal of Medical Physics and Engineering

1 2019

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Evaluation of radiographers’ and CT technologists’ knowledge regarding CT exposure parameters

Mahmoudi Farshid, Naserpour Mozafar, Farzanegan Zahra, Davudian Talab Amirhossein

Polish Journal of Medical Physics and Engineering

2019

Vol. 25, Iss. 1

43--50

Introduction: Since the CT operators play an important role in the diagnosis and treatment of diseases and exposing the patients to radiation exposure, they must be aware of all CT parameters which affect the image quality and patient dose and update their knowledge in parallel with the progresses in CT technology. Therefore, the knowledge of radiographers and CT technologists regarding the CT parameters was assessed in this study to identify and resolve any potential deficiencies. Material and methods: This study was conducted in 2018 among 113 radiographers and 103 CT technologists in Khuzestan province using a three-part questionnaire containing demographic characteristics, general opinion on CT scan dose and questions assessing technologists’ knowledge of CT exposure parameters. Data were analyzed using SPSS software. Results: Total knowledge scores of radiographers and CT technologists about CT exposure parameters were 36 and 42, respectively. The highest knowledge score among technologist was the knowledge of changing parameters based on patient characteristics and the lowest was in the field of awareness of noise index and diagnostic reference levels. Conclusion: Total knowledge scores of radiographers and CT technologists about different scan parameters affecting dose and image quality was very low. Reviewing and updating the content of academic education and holding retraining courses are suggested.