Automated detection system for pulmonary emphysema on 3D chest CT images

Takeshi Hara; Akira Yamamoto; Xiangrong Zhou; Shingo Iwano; Shigeki Itoh; Hiroshi Fujita; Takeo Ishigaki

doi:10.1117/12.536376

12 May 2004 Automated detection system for pulmonary emphysema on 3D chest CT images

Takeshi Hara, Akira Yamamoto, Xiangrong Zhou, Shingo Iwano, Shigeki Itoh, Hiroshi Fujita, Takeo Ishigaki

Author Affiliations +

Proceedings Volume 5370, Medical Imaging 2004: Image Processing; (2004) https://doi.org/10.1117/12.536376
Event: Medical Imaging 2004, 2004, San Diego, California, United States

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.

Citation Download Citation

Takeshi Hara, Akira Yamamoto, Xiangrong Zhou, Shingo Iwano, Shigeki Itoh, Hiroshi Fujita, and Takeo Ishigaki "Automated detection system for pulmonary emphysema on 3D chest CT images", Proc. SPIE 5370, Medical Imaging 2004: Image Processing, (12 May 2004); https://doi.org/10.1117/12.536376

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