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http://dx.doi.org/10.7742/jksr.2016.10.6.419

The Effects of Reducing a Dose on the Genital Gland at a CT Scan on the Whole Abdomen According to the Shielding Material  

Gang, Eun Bo (Department of Radiological Science, Dong-Eui Institute of Technology)
Park, Cheol Woo (Department of Radiological Science, Dong-Eui Institute of Technology)
Publication Information
Journal of the Korean Society of Radiology / v.10, no.6, 2016 , pp. 419-425 More about this Journal
Abstract
The purpose of this study is to produce a shielding material to reduce a dose on the genital gland, one of the superficial organs, at a CT scan on the whole abdomen and hardly affect picture quality and examine its utility. This research made 22 mm silicone and 7.3 mm aluminum having the similar material quality and effect of previous bismuth. By using the non-shield, bismuth, 22 mm silicone, and 7.3 mm aluminum shielding materials, this author conducted a comparative experiment measuring the decay rate of the genital gland's exposure to radiation, change of the CT number and noise in the image, and the CT number, noise, and uniformity in the AAPM phantom. According to the results, exposure to radiation is reduced in bismuth as 29.96%, silicone 22 mm as 13.10%, and 7.3 mm aluminum as 18.27%. In bismuth, however, the image's CT number varies a lot, and uniformity is measured to be inappropriate in the AAPM phantom scan; therefore, it indicates great change in terms of picture quality in superficial organs like the genital gland. Concerning superficial organs like the genital gland, if 22 mm silicone and 7.3 mm aluminum are used as shielding materials, it will be helpful in reducing variation in picture quality and also decreasing radiation exposure to radiation.
Keywords
whole abdomen CT; CT number; noise; uniformity; AAPM phantom;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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