JaLCDOI 10.18926/AMO/32886
フルテキストURL fulltext.pdf
著者 Maki, Daisuke| Takahashi, Masashi| Ushio, Noritoshi| Takazakura, Ryutaro| Nitta, Norihisa| Murata, Kiyoshi| Kanazawa, Susumu|
抄録 <p>The aim of the present study was to define the resolution of multiplanar reconstruction (MPR) of the lung from &#34;theoretical isotropic data.&#34; Using inflated and fixed lung specimens of the pig placed in the chest wall phantom, 0.5-mm isotropic data were obtained with 2 different helical pitches: 1:7 (high-quality mode) or 1:13, (high-speed mode), and 2 different tube currents: 250 mAs (high-tube-current mode) or 100 mAs (low-tube-current mode), with or without overlapping reconstruction. MPRs were created from these axial data. The diameter of the smallest visible pulmonary artery and bronchi of these CT images were measured on the corresponding slices of the specimen. The high-speed and low-tube-current mode significantly degraded the image quality due to increased noise. The smallest visible pulmonary artery and bronchus resolved on MPRs from axial-spiral data with 0.5-mm collimation were approximately 100 micrometer and 1,000 micrometer in diameter, respectively. In conclusion, helical pitch and tube current influence the resolution of MPR of the lung.</p>
キーワード multiplanar reconstruction computed tomography lung
Amo Type Original Article
発行日 2007-04
出版物タイトル Acta Medica Okayama
出版者 Okayama University Medical School
開始ページ 63
終了ページ 69
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 17471306
Web of Sience KeyUT 000245875600003