著作: Dashupuntsag Oyunbat/[吉田 みどり]/[笠井 亮佑]/[前田 直樹]/[細木 秀彦]/[誉田 栄一]/Numerical Evaluation of Image Contrast for Thicker and Thinner Objects among Current Intraoral Digital Imaging Systems./[BioMed Research International]
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種別 | 必須 | 学術論文(審査論文) | |||
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言語 | 必須 | 英語 | |||
招待 | 推奨 | ||||
審査 | 推奨 | ||||
カテゴリ | 推奨 | ||||
共著種別 | 推奨 | ||||
学究種別 | 推奨 | ||||
組織 | 推奨 | ||||
著者 | 必須 | ||||
題名 | 必須 |
(英) Numerical Evaluation of Image Contrast for Thicker and Thinner Objects among Current Intraoral Digital Imaging Systems. |
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副題 | 任意 | ||||
要約 | 任意 |
(英) The purpose is to evaluate the performance of current intraoral digital detectors in detail using a precise phantom and new method. Two aluminum step wedges in 0.5 mm steps were exposed by two photostimulable phosphor plate (PSP) systems-one with automatic exposure compensation (AEC) and the other without AEC-and a CCD sensor. Images were obtained with 3 doses at 60 kV. The effect of metallic material also was evaluated. The contrast-to-noise ratio (CNR) for thinner steps and the low contrast value (LCV) for thicker steps were obtained. The CCD system was the best under all conditions (P < 0.001), although the Gray value was sensitive to the dose, and the Gray value-dose relation varied greatly. The PSP system with AEC was superior to that without AEC for the LCV (P < 0.001) but was inferior to it regarding the CNR (P < 0.001). CNR and LCV in the PSP system without AEC were not affected by the metallic plate. Intraoral digital imaging systems should be chosen according to their diagnostic purpose. PSP system with AEC may be the best for detecting molar proximal caries, whereas the PSP system without AEC may be better for evaluating small bone regeneration in periodontal disease. The CCD system provided the best performance. |
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キーワード | 推奨 | ||||
発行所 | 推奨 | ||||
誌名 | 必須 |
BioMed Research International(Hindawi Pub. Co.)
(pISSN: 2314-6133, eISSN: 2314-6141)
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巻 | 必須 | 2017 | |||
号 | 必須 | --- | |||
頁 | 必須 | 5215413 5215413 | |||
都市 | 任意 | ||||
年月日 | 必須 | 2017年 3月 初日 | |||
URL | 任意 | ||||
DOI | 任意 | 10.1155/2017/5215413 (→Scopusで検索) | |||
PMID | 任意 | 28497053 (→Scopusで検索) | |||
CRID | 任意 | ||||
WOS | 任意 | ||||
Scopus | 任意 | 2-s2.0-85018836337 | |||
機関リポジトリ | 112388 | ||||
評価値 | 任意 | ||||
被引用数 | 任意 | ||||
指導教員 | 推奨 | ||||
備考 | 任意 |
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