Recognition method of lung nodules using blood vessel extraction techniques and 3D object models

Gentaro Fukano; Hotaka Takizawa; Kanae Shigemoto; Shinji Yamamoto; Tohru Matsumoto; Yukio Tateno; Takeshi Iinuma

doi:10.1117/12.480665

15 May 2003 Recognition method of lung nodules using blood vessel extraction techniques and 3D object models

Gentaro Fukano, Hotaka Takizawa, Kanae Shigemoto, Shinji Yamamoto, Tohru Matsumoto, Yukio Tateno, Takeshi Iinuma

Proceedings Volume 5032, Medical Imaging 2003: Image Processing; (2003) https://doi.org/10.1117/12.480665
Event: Medical Imaging 2003, 2003, San Diego, California, United States

Abstract

In this paper, we propose a method for reducing false positives in X-ray CT images using ridge shadow extraction techniques and 3D geometric object models. Suspicious shadows are detected by our variable N-quoit (VNQ) filter, which is a type of mathematical morphology filter. This filter can detect lung cancer shadows with the sensitivity over 95[%], but it also detects many false positives which are mainly related to blood vessel shadows. We have developed two algorithms to distinguish lung nodule shadows from blood vessel shadows. In the first algorithm, the ridge shadows, which come from blood vessels, are emphasized by our Tophat by Partial Reconstruction filter which is also a type of mathematical morphology filter. And then, the region of the ridge shadow is extracted using binary distance transformation. In the second algorithm, we propose a recognition method of nodules using 3D geometric lung nodule and blood vessel models. The anatomical knowledge about the 3D structures of nodules and blood vessels can be reflected in recognition process. By applying our new method to actual CT images (37 patient images), a good result has been acquired.

Citation Download Citation

Gentaro Fukano, Hotaka Takizawa, Kanae Shigemoto, Shinji Yamamoto, Tohru Matsumoto, Yukio Tateno, and Takeshi Iinuma "Recognition method of lung nodules using blood vessel extraction techniques and 3D object models", Proc. SPIE 5032, Medical Imaging 2003: Image Processing, (15 May 2003); https://doi.org/10.1117/12.480665

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available