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DC FieldValueLanguage
dc.contributor.author김용수-
dc.date.accessioned2017-11-22T02:46:11Z-
dc.date.available2017-11-22T02:46:11Z-
dc.date.issued2016-02-
dc.identifier.citationJOURNAL OF KOREAN MEDICAL SCIENCE, v. 31, Page. 24-31en_US
dc.identifier.issn1011-8934-
dc.identifier.issn1598-6357-
dc.identifier.urihttps://synapse.koreamed.org/DOIx.php?id=10.3346/jkms.2016.31.S1.S24-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/31760-
dc.description.abstractEmerging concerns regarding the hazard from medical radiation including CT examinations has been suggested. The purpose of this study was to observe the longitudinal changes of CT radiation doses of various CT protocols and to estimate the long-term efforts of supervising radiologists to reduce medical radiation. Radiation dose data from 11 representative CT protocols were collected from 12 hospitals. Attending radiologists had collected CT radiation dose data in two time points, 2007 and 2010. They collected the volume CT dose index (CTDIvol) of each phase, number of phases, dose length product (DLP) of each phase, and types of scanned CT machines. From the collected data, total DLP and effective dose (ED) were calculated. CTDIvol, total DLP, and ED of 2007 and 2010 were compared according to CT protocols, CT machine type, and hospital. During the three years, CTDI(vo)l had significantly decreased, except for dynamic CT of the liver. Total DLP and ED were significantly decreased in all 11 protocols. The decrement was more evident in newer CT scanners. However, there was substantial variability of changes of ED during the three years according to hospitals. Although there was variability according to protocols, machines, and hospital, CT radiation doses were decreased during the 3 years. This study showed the effects of decreased CT radiation dose by efforts of radiologists and medical society.en_US
dc.description.sponsorshipThis study was supported by a Guerbet Radiological Research Fund of the Korean Society of Radiology for 2010.en_US
dc.language.isoenen_US
dc.publisherKOREAN ACAD MEDICAL SCIENCESen_US
dc.subjectMultidetector Computed Tomographyen_US
dc.subjectRadiation Doseen_US
dc.subjectRadiologyen_US
dc.subjectLongitudinal Studiesen_US
dc.titleRadiation Doses of Various CT Protocols: A Multicenter Longitudinal Observation Studyen_US
dc.typeArticleen_US
dc.relation.volume31-
dc.identifier.doi10.3346/jkms.2016.31.S1.S24-
dc.relation.page24-31-
dc.relation.journalJOURNAL OF KOREAN MEDICAL SCIENCE-
dc.contributor.googleauthorJang, Jinhee-
dc.contributor.googleauthorJung, Seung Eun-
dc.contributor.googleauthorJeong, Woo Kyoung-
dc.contributor.googleauthorLim, Yeon Soo-
dc.contributor.googleauthorChoi, Joon-Il-
dc.contributor.googleauthorPark, Michael Yong-
dc.contributor.googleauthorKim, Yongsoo-
dc.contributor.googleauthorLee, Seung-Koo-
dc.contributor.googleauthorChung, Jae-Joon-
dc.contributor.googleauthorEo, Hong-
dc.relation.code2016003251-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF MEDICINE[S]-
dc.sector.departmentDEPARTMENT OF MEDICINE-
dc.identifier.pidysookim-


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