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Proceedings Paper

Automated detection system for pulmonary emphysema on 3D chest CT images
Author(s): Takeshi Hara; Akira Yamamoto; Xiangrong Zhou; Shingo Iwano; Shigeki Itoh; Hiroshi Fujita; Takeo Ishigaki
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Paper Abstract

An automatic extraction of pulmonary emphysema area on 3-D chest CT images was performed using an adaptive thresholding technique. We proposed a method to estimate the ratio of the emphysema area to the whole lung volume. We employed 32 cases (15 normal and 17 abnormal) which had been already diagnosed by radiologists prior to the study. The ratio in all the normal cases was less than 0.02, and in abnormal cases, it ranged from 0.01 to 0.26. The effectiveness of our approach was confirmed through the results of the present study.

Paper Details

Date Published: 12 May 2004
PDF: 5 pages
Proc. SPIE 5370, Medical Imaging 2004: Image Processing, (12 May 2004); doi: 10.1117/12.536376
Show Author Affiliations
Takeshi Hara, Gifu Univ. (Japan)
Akira Yamamoto, Gifu Univ. (Japan)
Xiangrong Zhou, Gifu Univ. (Japan)
Shingo Iwano, Nagoya Univ. (Japan)
Shigeki Itoh, Nagoya Univ. (Japan)
Hiroshi Fujita, Gifu Univ. (Japan)
Takeo Ishigaki, Nagoya Univ. (Japan)


Published in SPIE Proceedings Vol. 5370:
Medical Imaging 2004: Image Processing
J. Michael Fitzpatrick; Milan Sonka, Editor(s)

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