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Proceedings Article

Automatic recognition of lung lobes and fissures from multislice CT images

[+] Author Affiliations
Xiangrong Zhou, Tatsuro Hayashi, Takeshi Hara, Hiroshi Fujita

Gifu Univ. Graduate School of Medicine (Japan)

Ryujiro Yokoyama, Takuji Kiryu, Hiroaki Hoshi

Gifu Univ. School of Medicine and Univ. Hospital (Japan)

Proc. SPIE 5370, Medical Imaging 2004: Image Processing, 1629 (May 12, 2004); doi:10.1117/12.534499
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From Conference Volume 5370

  • Medical Imaging 2004: Image Processing
  • J. Michael Fitzpatrick; Milan Sonka
  • San Diego, CA | February 14, 2004

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.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Xiangrong Zhou ; Tatsuro Hayashi ; Takeshi Hara ; Hiroshi Fujita ; Ryujiro Yokoyama, et al.
"Automatic recognition of lung lobes and fissures from multislice CT images", Proc. SPIE 5370, Medical Imaging 2004: Image Processing, 1629 (May 12, 2004); doi:10.1117/12.534499; http://dx.doi.org/10.1117/12.534499


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