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http://dx.doi.org/10.7742/jksr.2013.7.2.137

A Comparative Evaluation of Organ Doses in Infants and toddlers between Axial and Spiral CT Scanning  

Kim, Sangtae (Department of Radiological Science, Hanlyo University)
Eun, Sungjong (Department of Radiological Science, Hanlyo University)
Kim, Sunggil (Department of Radiological Science, Hanlyo University)
Publication Information
Journal of the Korean Society of Radiology / v.7, no.2, 2013 , pp. 137-143 More about this Journal
Abstract
This study presents comparison results between axial and spiral scanning in the head and chest region with 64 MDCT to evaluate organ doses in infants and toddlers, who are more radiosensitive to radiation than adults and rise in the number of CT examinations, during CT scanning. Organ doses were significantly lower in spiral scanning than axial scanning regardless of scanned regions. The average organ dose for the chest scan using pitch of 1.355 was found to be significantly higher(average -12.03%) than for the other two pitch settings(0.525 and 0.988) in the spiral scanning mode compared with the axial one. Organ doses in the spiral scanning mode were lower by average 20.54% than the axial scanning mode. The results of the study that evaluated organ doses with an anthropomorphic phantom will help to demonstrate the result values of Monte Carlo simulations and make a contribution to more accurate evaluations of organ doses in toddlers undergoing a CT examination.
Keywords
Infants and Toddlers; Axial Scan; Spiral Scan; Organ dose; demonstrate;
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Times Cited By KSCI : 2  (Citation Analysis)
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