원저 : 조사야에 따른 cone-beam computed tomography의 흡수선량 비교
분야
의약학 > 기초치의학
저자
서요섭 ( Yo Seob Seo ) , 김재덕 ( Jae Duk Kim ) , 김진수 ( Jin Soo Kim )
발행기관
조선대학교 치의학연구원(구 조선대학교 구강생물학연구소)
간행물정보
Oral Biology Research (OBR) 2013년, 제37권 제1호, 39~44페이지(총6페이지)
파일형식
71201266.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    To compare absorbed doses of cone-beam computed tomography (CBCT) according to field of view (FOV). Materials and Methods: To measure the absorbed doses of CBCT (Hitachi Medical Co.), we placed thermoluminescent dosimeter chips on both the submandibular and parotid glands, esophagus, tongue, and thyroid gland in a dental head phantom (CIRS). We used three image acquisition modes with FOV of different size: panoramic mode (P mode), implant mode (I mode), and dental mode (D mode). Two different dental mode scans were performed. One scanned the right upper molar region (D1), whereas the other scanned the left lower molar region (D2). Results: Average absorbed doses was lowest in D mode (average of D1 and D2, 4272.1 μGy) (p<0.05). Although the averages of absorbed doses between D1 and D2 showed no significant difference (p>0.05), the absorbed doses of esophagus (D1 756.9 μGy, D2 2938.2 μGy) and thyroid gland (D1 344.6 μGy, D2 880.1 μGy) were significantly different between D1 and D2. Conclusion: Since the average of absorbed doses was lowest with the smallest FOV, we must try to select the lowest FOV as possible when performing computed tomography, followed by careful diagnosis.
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