実効線量と画像の物理特性による歯科用コーンビームＣＴとｍｕｌｔｉ－ｄｅｔｅｃｔｏｒ　ｒｏｗ　ＣＴの比較

DOI Web Site PubMed 被引用文献1件 参考文献31件 オープンアクセス
  • 吉田 豊
    九州大学病院医療技術部放射線部門
  • 徳森 謙二
    九州大学大学院歯学研究院口腔顎顔面病態学講座口腔画像情報科学分野
  • 岡村 和俊
    九州大学大学院歯学研究院口腔顎顔面病態学講座口腔画像情報科学分野
  • 吉浦 一紀
    九州大学大学院歯学研究院口腔顎顔面病態学講座口腔画像情報科学分野

書誌事項

タイトル別名
  • Comparison of a Dental Cone Beam CT with a Multi-detector Row CT on Effective Doses and Physical Image Quality
  • ジッコウセンリョウ ト ガゾウ ノ ブツリ トクセイ ニ ヨル シカヨウ コーンビーム CT ト multi detector row CT ノ ヒカク

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説明

The purpose of this study was to compare a dental cone beam computed tomography (dental CBCT) and a multi-detector row CT (MDCT) using effective doses and physical image quality. A dental mode (D-mode) and an implant mode (I-mode) were employed for calculating effective doses. Field of view (FOV) size of the MDCT was 150 mm. Three types of images were obtained using 3 different reconstruction functions: FC1 (for abdomen images), FC30 (for internal ear and bone images) and FC81 (for high resolution images). Effective doses obtained with the D-mode and with the I-mode were about 20% and 50% of those obtained with the MDCT, respectively. Resolution properties obtained with the D-mode and I-mode were superior to that of the MDCT in a high frequency range. Noise properties of the D-mode and the I-mode were better than those with FC81. It was found that the dental CBCT has better potential as compared with MDCT in both dental and implant modes.

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