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Proceedings Paper

Automatic recognition of lung lobes and fissures from multislice CT images
Author(s): Xiangrong Zhou; Tatsuro Hayashi; Takeshi Hara; Hiroshi Fujita; Ryujiro Yokoyama; Takuji Kiryu; Hiroaki Hoshi
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Paper Abstract

Computer-aided diagnosis (CAD) has been expected to help radiologists to improve the accuracy of abnormality detection and reduce the burden during CT image interpretations. In order to realize such functions, automated segmentations of the target organ regions are always required by CAD systems. This paper describes a fully automatic processing procedure, which is designed to identify inter-lobe fissures and divide lung into five lobe regions. The lung fissures are disappeared very fuzzy and indefinite in CT images, so that it is very difficult to extract fissures directly based on its CT values. We propose a method to solve this problem using the anatomy knowledge of human lung. We extract lung region firstly and then recognize the structures of lung vessels and bronchus. Based on anatomy knowledge, we classify the vessels and bronchus on a lobe-by-lobe basis and estimate the boundary of each lobe region as the initial fissure locations. Within those locations, we extract lung fissures precisely based on an edge detection method and divide lung regions into five lung lobes lastly. The performance of the proposed method was evaluated using 9 patient cases of high-resolution multi-slice chest CT images; the improvement has been confirmed with the reliable recognition results.

Paper Details

Date Published: 12 May 2004
PDF: 5 pages
Proc. SPIE 5370, Medical Imaging 2004: Image Processing, (12 May 2004); doi: 10.1117/12.534499
Show Author Affiliations
Xiangrong Zhou, Gifu Univ. Graduate School of Medicine (Japan)
Tatsuro Hayashi, Gifu Univ. Graduate School of Medicine (Japan)
Takeshi Hara, Gifu Univ. Graduate School of Medicine (Japan)
Hiroshi Fujita, Gifu Univ. Graduate School of Medicine (Japan)
Ryujiro Yokoyama, Gifu Univ. School of Medicine and Univ. Hospital (Japan)
Takuji Kiryu, Gifu Univ. School of Medicine and Univ. Hospital (Japan)
Hiroaki Hoshi, Gifu Univ. School of Medicine and Univ. Hospital (Japan)

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

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