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http://dx.doi.org/10.12812/ksms.2011.13.2.091

A Study on Reducing of Entrance Surface Dose with the Eye in the Computed Radiography by Using High Kilo Voltage Peak Technique  

Seoung, Youl-Hun (Department of Radiology, The Ceongju University)
Rhim, Jea-Dong (Department of Radiological Science, The Daewon University College)
Publication Information
Journal of the Korea Safety Management & Science / v.13, no.2, 2011 , pp. 91-96 More about this Journal
Abstract
The purpose of this study was to minimize of entrance surface dose (ESD) at the eye using high kVp technique in the computed radiography. We used REX-650R (Listem, Korea) general X-ray unit, and external detector with ESD dosimeter of Piranha 657 (RTI Electronics, Sweden). We used head of the whole body phantom. The total 64 images of X-ray anterior-posterior of skull were acquired using the film/screen (F/S) method and the digital of computed radiography method. The three radiology professor of more 10 years of clinical career evaluated a X-rays images in the same space by 5-point scale. The external detector was performed measurement of ESD of three times by same condition on the eye of the head phantom. The good image quality in the F/S method (90 kVp, 2.5 mAs) showed at the minimized ESD of 0.310 ${\pm}$ 0.001 mGy. the good image quality in the computed radiography method (90 kVp, 2.0 mAs) showed at the minimized ESD of 0.180 ${\pm}$ 0.002 mGy (P = 0.002). Finally the radiation dose could reduced about 50% in the computed radiography method more than the F/S method. In addition the eye entrance surface dose using high kVp technique with the computed radiography was reduced 92% more than conventional technique (F/S method).
Keywords
Computed Radiography; High kVp Technique; Eye Entrance Surface Dose;
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Times Cited By KSCI : 3  (Citation Analysis)
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