Conference proceeding
Neural-network-based method for intrathoracic airway detection from three-dimensional CT images
Proceedings of SPIE, Vol.2433(1), pp.191-202
Medical Imaging 1995: Physiology and Function from Multidimensional Images
05/24/1995
DOI: 10.1117/12.209715
Abstract
This paper presents a neural network-based method for intrathoracic airway detection and segmentation from 3D HRCT images. Two feed-forward neural networks are independently trained to identify various airway appearances in 3D CT images. While the first network identifies potential airways located adjacent to vessels, the second network identifies potential airways by assessing the existence of walls surrounding airways, The two networks are combined to construct a dual-network classifier taking its inputs from a 21 X 21 moving subimage window: (1) raw gray-level subimage and (2) 4 directional profiles. By design, each network provides a superset of airways that are present in the CT images and only the airways identified by both networks are considered reliable. After the networks are trained by the generalized delta rule with momentum using limited number of airway/nonairway samples apart from the validation data sets, the generalization performance of the networks is assessed with two independent standards consisting of 282 and 167 observer-traced airways. The performance of the current method is compared with that of the conventional seeded region growing method. Our validation results indicate that the presented method indeed provide enhanced detection of peripheral airways compared to the conventional region growing method.
Details
- Title: Subtitle
- Neural-network-based method for intrathoracic airway detection from three-dimensional CT images
- Creators
- Jun W Kim - University of IowaMilan Sonka - University of Iowa
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of SPIE, Vol.2433(1), pp.191-202
- Conference
- Medical Imaging 1995: Physiology and Function from Multidimensional Images
- DOI
- 10.1117/12.209715
- ISSN
- 0277-786X
- eISSN
- 1996-756X
- Language
- English
- Date published
- 05/24/1995
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Electrical and Computer Engineering; Radiation Oncology; Fraternal Order of Eagles Diabetes Research Center; Injury Prevention Research Center; Ophthalmology and Visual Sciences
- Record Identifier
- 9984186707702771
Metrics
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