시간에 따르는 CR장비의 영상의 질평가
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 손순룡 | - |
dc.contributor.author | 최관우 | - |
dc.contributor.author | 김정민 | - |
dc.contributor.author | 정회원 | - |
dc.contributor.author | 권경태 | - |
dc.contributor.author | 황선광 | - |
dc.contributor.author | 이익표 | - |
dc.contributor.author | 김기원 | - |
dc.contributor.author | 정재용 | - |
dc.contributor.author | 이영아 | - |
dc.contributor.author | 손진현 | - |
dc.contributor.author | 민정환 | - |
dc.date.accessioned | 2021-09-04T23:16:00Z | - |
dc.date.available | 2021-09-04T23:16:00Z | - |
dc.date.created | 2021-06-17 | - |
dc.date.issued | 2015 | - |
dc.identifier.issn | 2288-3509 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/95808 | - |
dc.description.abstract | The regular quality assurance (RQA) of X-ray images is essential for maintaining a high accuracy of diagnosis. This study was to evaluate the modulation transfer function (MTF), the noise power spectrum (NPS), and the detective quantum efficiency (DQE) of a computed radiography (CR) system for various periods of use from 2006 to 2015.We measured the pre-sampling MTF using the edge method and RQA 5 based on commission standard in-ternational electro-technical commission (IEC). The spatial frequencies corresponding to the 50% MTF for the CR systems in 2006, 2009, 2012 and 2015 were 1.54, 1.14, 1.12, and 1.38 mm-1, respectively and the10% MTF for 2006, 2009, 2012, and 2015 were 2.68, 2.44, 2 .44, and 2.46mm-1, respectively. In the NPS results, the CR systems showed the best noise distribution in 2006, and with the quality of distributions in the order of 2015, 2009, and 2012. At peak DQE and DQE at 1 mm-1, the CR systems showed the best efficiency in 2006, and showed better efficiency in order of 2015, 2009, and 2012. Because the eraser lamp in the CR systems was re-placed, the image quality in 2015 was superior to those in 2009 and 2012.This study can be incorporated into used in clinical QA requiring performance and evaluation of the per-formance of the CR systems. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | 대한방사선과학회 | - |
dc.title | 시간에 따르는 CR장비의 영상의 질평가 | - |
dc.title.alternative | Measurement of Image Quality According to the Time of Computed Radiography System | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | 김정민 | - |
dc.identifier.doi | 10.17946/JRST.2015.38.4.05 | - |
dc.identifier.bibliographicCitation | 방사선기술과학, v.38, no.4, pp.365 - 374 | - |
dc.relation.isPartOf | 방사선기술과학 | - |
dc.citation.title | 방사선기술과학 | - |
dc.citation.volume | 38 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 365 | - |
dc.citation.endPage | 374 | - |
dc.type.rims | ART | - |
dc.identifier.kciid | ART002065897 | - |
dc.description.journalClass | 2 | - |
dc.description.journalRegisteredClass | kci | - |
dc.subject.keywordAuthor | Modulation transfer function (MTF) | - |
dc.subject.keywordAuthor | Noise power spectrum (NPS) | - |
dc.subject.keywordAuthor | Detective quantum efficiency (DQE) | - |
dc.subject.keywordAuthor | 변조전달함수 | - |
dc.subject.keywordAuthor | 잡음전력스펙트럼 | - |
dc.subject.keywordAuthor | 양자검출효율 | - |
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