Grid Recognition among Radiological Technologists in South Korea

Abstract

This research was to examine how radiological technologists use and perceive grids. The study entailed a survey of 201 radiological technologists working in Korean medical institutions (general and specialty hospitals and a clinic). Its aim was to improve their use of grids and to provide basic data about grids. A survey was conducted of 201 radiological technologists working in Korean medical institutions regarding the relationships between grid ratio and dose and between grid ratio and video quality as well as differences in video quality and in dose between mobile and fixed grids. There were also five questions on respondents’ sociodemographic characteristics. There were significant differences in recognition of adequate grid ratios and of the relationship between grid ratio and dose among radiological technologists working indifferent types of medical institutions (p<0.01) technologists at the clinic level showed the highest recognition that their currently installed grid ratios were adequate. There were also significant differences in recognizing the differences in video image and dose between mobile and fixed grids depending on the different types of medical institutions and differing work durations (p< 0.05). To improve image quality and reduce patients’ exposure doses, it is desirable that there be proper education on grids.