Indian Journal of Science and Technology
Year: 2015, Volume: 8, Issue: Supplementary 1, Pages: 1-5
Se-Jong Yoo1 , Man-Seok Han2* , Seung-Youl Lee3 , Min-Cheol Jeon4 , Hyun-Kuk Lee5 , Sun-Youl Seo6 and In-Mo Yang6
1 Department of Diagnostic Radiology, Konyang University Hospital, Daejeon, 302-812, South Korea; [email protected]
2 Department of Radiology, Kangwon National University, Kangwon, 245-710, South Korea; [email protected]
3 Korea Food and Drug Administration, Cheongju, 363-700, South Korea; [email protected]
4 Department of Diagnostic Radiology, Chungnam National University Hospital, Daejeon, 301-721, South Korea; [email protected]
5 Department of Nuclear Medicine, Eulji University Hospital, Daejeon, 302-799, South Korea; [email protected]
6 Department of Diagnostic Radiology, Eulji University Hospital, Daejeon, 302-799, South Korea; [email protected], [email protected]
This study intends to investigate whether radiation dose increases as the number of detectors in MDCT (Multi Detector Computed Tomography) increases through abdominal and pelvis CT examination and whether there is a difference in dose depending on the CT equipment, and to analyse associated factors. targeting 1,038 subjects who underwent abdominal and pelvis CT examination together, it was examined whether there was a difference in radiation dose depending on the number of CT detector and manufacturer by applying corresponding variables to the radiation dose management program distributed by the MFDS (Ministry of Food and Drug Safety), based on gender, total CTDI (Computed Tomography Dose Index), total DLP (Dose Length Product), total mAs, and scan area, which may be associated with the radiation dose. 64 detector had average 15.9(±4.9)mSv, while 128 defector had 10.8(±2.6)mSv. 64 detector showed 1.47 times higher dose difference. It can be seen as a result of efforts for reducing radiation dose in each equipment manufacture as a measure of reduction to decrease radiation dose as well as evaluation for patient radiation does.
Keywords: CTDI (Computed Tomography Dose Index), DLP (Dose Length Product), MDCT (Multi Detector Computed Tomography), mSv, Radiation Dose
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