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논문 기본 정보

자료유형
학술저널
저자정보
이민수 (순천향대학교부천병원) 이근옥 (순천향대학교부천병원) 최재호 (안산대학교) 정재홍 (가톨릭대학교)
저널정보
대한방사선과학회 방사선기술과학 방사선기술과학 제40권 제2호
발행연도
2017.6
수록면
187 - 195 (9page)
DOI
http://dx.doi.org/10.17946/JRST.2017.40.2.02

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초록· 키워드

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Early diagnosis for upper facial trauma is difficult by using the standard Water's view (S-Water's) in general radiograph due to overlapping of anatomical structures, the uncertainty of patient positioning, and specific patients with obese, pediatric, old, or high-risk. The purpose of this study was to analyze appropriate exposure angles through a comparison of two different protocols (S-Water's vs. reverse Water's view (R-Water's)) by using a head phantom. A head phantom and general radiograph with 75 kVp, 400 mA, 45 ms 18 mAs, and SID 100 cm. Images of R-Water's were obtained by different angles in the range of 0° to 50°, which adjusted an angle at 1 degree interval in supine position. Survey elements were developed and three observers were evaluated with four elements including the maxillary sinus, zygomatic arch, petrous ridge, and image distortion. Statistical significant analysis were used the Krippendorff's alpha and Fleiss' kappa. The intra-class correlation (ICC) coefficient for three observers were high with maxillary, 0.957 (0.903, 0.995); zygomatic arch, 0.939 (0.866, 0.987); petrous ridge, 0.972 (0.897, 1.000); and image distortion, 0.949 (0.830, 1.000). The high-quality image (HI) and perfect agreement (PA) for acquired exposure angles were high in range of the maxillary sinus (36° ? 44°), zygomatic arch (33° ? 40°), petrous ridge (32° ? 50°), and image distortion (44° ? 50°). Consequently, an appropriate exposure angles for the R-Water's view in the supine position for patients with facial trauma are in the from 36° to 40° in this phantom study. The results of this study will be helpful for the rapid diagnosis of facial fractures by simple radiography.

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