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KMID : 0357520120350010035
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Journal of Radiological Science and Technology
2012 Volume.35 No. 1 p.35 ~ p.44
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The Survey for Awareness of Radiation Dose of CT and General X-ray Examination
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Joo Young-Cheol
Lim Cheong-Hwan
Jung Hong-Ryang
You In-Gyu
Cho Han-Byul
Yang Oh-Nam
Kim Min-Cheol
Yoon Joon
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Abstract
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The goal of this study is to awaken about risk occurred by CT examination. For radio-technologists working at ’S medical center’ located in Seoul, we investigated a recognition about dose and risk CT and normal X-ray examination according by working experience in hospital, experience about CT examination and radiation source. For subjects of investigation, radio-technologists working at ’S medical center’ located in Seoul helped us. We collected 131 questionnaires for a test of hypothesis. Cronbach @ coefficients of questionnaires were 0.825988 and 0.767161 and a rejection rate of p-value was below 0.05. SAS 9.1(SAS Institute Inc., Cary, NC, USA.) statistic package was used for hypothesis test. We used Mann-Whitney test, Kruskai-Wallis test, Two sample T-test, Two sample T-test with Bonferroni’s Correction and One-way ANOVA methods. P-values of hypothesis about dose of CT and normal X-ray examination were 0.2291 ~ 0.9663. p-values of hypothesis about risk were 0.1924 ~ 1.0000. All of hypothesis is over rejection rate(<0.05). This study shows that radio-technologists of S medical center recognized that CT has higher dose and risk than general X-ray examination.
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KEYWORD
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Computed Tomography(CT), General X-ray, Radiation Dose, Radiotechnologist
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