TY - GEN
T1 - Artery-vein separation of human vasculature from 3D thoracic CT angio scans
AU - Park, Sangmin
AU - Bajaj, Chandrajit
AU - Gladish, Gregory
PY - 2007
Y1 - 2007
N2 - This paper presents vascular tree reconstruction and artery-vein separation methods from 3D thoracic CT-angiography (CTA) images. In the methods, the lungs, blood vessels and the heart are segmented by using intensity-based thresholds and morphological operations. After the distance transform for the regions of blood vessels and the heart, we compute seed points that are the maxima of distance values. At each seed point, spheres are inflated until hit a boundary. The spheres and the connections between overlapped spheres make a graph representation of the 3D image. Once the pulmonary trunk is detected by using directions in the graph, blood vessels are traversed toward the heart, while merging and verifying branches. If a branch is linked to the pulmonary trunk, then all subsegmental trees of the branch are classified into pulmonary arteries. Otherwise, it is a pulmonary vein.
AB - This paper presents vascular tree reconstruction and artery-vein separation methods from 3D thoracic CT-angiography (CTA) images. In the methods, the lungs, blood vessels and the heart are segmented by using intensity-based thresholds and morphological operations. After the distance transform for the regions of blood vessels and the heart, we compute seed points that are the maxima of distance values. At each seed point, spheres are inflated until hit a boundary. The spheres and the connections between overlapped spheres make a graph representation of the 3D image. Once the pulmonary trunk is detected by using directions in the graph, blood vessels are traversed toward the heart, while merging and verifying branches. If a branch is linked to the pulmonary trunk, then all subsegmental trees of the branch are classified into pulmonary arteries. Otherwise, it is a pulmonary vein.
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M3 - Conference contribution
AN - SCOPUS:60949099219
SN - 9780415433495
T3 - Proceedings of the International Symposium CompIMAGE 2006 - Computational Modelling of Objects Represented in Images: Fundamentals, Methods and Applications
SP - 331
EP - 336
BT - Proceedings of the International Symposium CompIMAGE 2006 - Computational Modelling of Objects Represented in Images
T2 - International Symposium CompIMAGE 2006 - Computational Modelling of Objects Represented in Images: Fundamentals, Methods and Applications
Y2 - 20 October 2006 through 21 October 2006
ER -