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A study on the utilization of CT equipments  

Cho, Pyong-Kon (Dept. of Diagnostic Radiology, Korea University Medical Center)
Oh, Yu-Whan (Dept. of Diagnostic Radiology, Korea University Medical Center)
Kim, Sung-Soo (Dept. of Radiologic Technology, College of Singu)
Choi, Jong-Hak (Dept. of Radiologic Technology, College of Health Sciences, Korea University)
Kim, You-Hyun (Dept. of Radiologic Technology, College of Health Sciences, Korea University)
Publication Information
Journal of Radiation Protection and Research / v.30, no.1, 2005 , pp. 9-15 More about this Journal
Abstract
This study was conducted to investigate the patient exposure dose during a CT examination and the present position in utilization of the CT equipments. To this end Questionnaire were sent out to 278 medical facilities registered at Korea Hospital Association and replies of 161 medical facilities were analyzed. The results were as follows ; 1) The distribution of CT examination was. Brain 40.7%, Abdomen 27.8%, Chest 15.7%, Spine 4.8%, Pelvis 4.1%, PNS 3.2%, Facial bone 2.5% and Extremity 1.1% respectively. 2) The statistics for dose index according to each part of examination were Brain 38.0mGy, Abdomen 12.0mGy for adults : Brain 13.6mGy, Abdomen 6.2mGy for infant. Our surveyed dose index appeared lower than the IAEA recommends. 3) Most medical facilities have selected the parameters for radiographic exposure in the range of $100{\sim}120kVp,\;100{\sim}250mA\;and\;1{\sim}2$ seconds.
Keywords
patient dose; computerized tomography; dose index; utilization of CT equipments;
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