ID | 32886 |
JaLCDOI | |
フルテキストURL | |
著者 |
Maki, Daisuke
Okayama University
Takahashi, Masashi
Shiga University
Ushio, Noritoshi
Shiga University
Takazakura, Ryutaro
Shiga University
Nitta, Norihisa
Shiga University
Murata, Kiyoshi
Shiga University
|
抄録 | The aim of the present study was to define the resolution of multiplanar reconstruction (MPR) of the lung from "theoretical isotropic data." 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. |
キーワード | multiplanar reconstruction
computed tomography
lung
|
Amo Type | Original Article
|
出版物タイトル |
Acta Medica Okayama
|
発行日 | 2007-04
|
巻 | 61巻
|
号 | 2号
|
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 |
英語
|
論文のバージョン | publisher
|
査読 |
有り
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PubMed ID | |
Web of Science KeyUT |