Paper Info
Title
Extraction of bronchus regions from 3D chest X-ray CT images by using structural features of bronchus
Abstract
This paper presents a new method for extracting bronchus regions from 3D chest X-ray CT images based on structural features of the bronchus. This method enhances bronchial walls by applying a sharpening operation and segments each bronchial branch by recognizing the tree structure starting from the trachea. During the extraction process, the volumes of interests (VOI) which contain the bronchial branch currently being processed are defined. Region growing is performed only inside a VOI so that a bronchial branch is extracted by a suitable threshold value. The final bronchus region is obtained by unifying the extracted branches. The tree structure of the bronchus is also extracted simultaneously. The proposed method was applied to three cases of 3D chest X-ray CT images. The experimental results showed that the method significantly improved extraction accuracy. About 82% of the branches is extracted for the 4th-order bronchi, 49% for 5th-order bronchi, and 20% for 6th-order bronchi, compared to 45%, 16%, and 3% by the previous method using the region-growing method with a constant threshold value.
Year
DOI
Venue
2003
10.1016/S0531-5131(03)00329-7
International Congress Series
Keywords
Field
DocType
Chest X-ray CT image,Bronchus,Volume of interest,Segmentation
Sharpening,Volume of interest,Bronchial walls,Bronchus,Segmentation,Tree structure,Region growing,Radiology,Medicine
Conference
Volume
ISSN
Citations 
1256
0531-5131
3
PageRank 
References 
Authors
0.61
4
5
Name
Order
Citations
PageRank
Takayuki Kitasaka152067.91
Kensaku Mori21125160.28
Jun-ichi Hasegawa322161.17
Y Suenaga4737187.41
Jun-ichiro Toriwaki5578136.04