Název:	Airways Segmentation using Fast Marching
Autoři:	Bustacara-Medina, César Flórez-Valencia, Leonardo Hurtado, José Hernando
Citace zdrojového dokumentu:	WSCG 2020: full papers proceedings: 28th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, p. 179-185.
Datum vydání:	2020
Nakladatel:	Václav Skala - UNION Agency
Typ dokumentu:	conferenceObject konferenční příspěvek
URI:	http://wscg.zcu.cz/WSCG2020/2020-CSRN-3001.pdf http://hdl.handle.net/11025/38465
ISBN:	978-80-86943-35-0
ISSN:	2464–4617 (print) 2464–4625 (CD-ROM)
Klíčová slova:	segmentace obrazu;strom dýchacích cest;rychlé pochodování;počítačová tomografie
Klíčová slova v dalším jazyce:	image segmentation;airway tree;fast marching;computed tomography
Abstrakt v dalším jazyce:	Direct measurements of airway tree and wall areas are potentially useful as a diagnostic tool and as an aid to understanding pathophysiology underlying of the airway diseases. Direct measurements can be made from images obtained using computer tomography (CT) by applying computer-based algorithms to segment airway, however, current validation techniques cannot establish adequately the accuracy of these algorithms. Additional, the majority of the studies only include the airway from trachea to bronchi’s tree avoiding the upper respiratory system, because the main problems appears in the lower respiratory system, for example, asthma and chronic obstructive pulmonary (airflow obstruction or limitation, including chronic bronchitis, emphysema and bronchiectasis). Airway tree segmentation can be performed manually by an image analyst, but the complexity of the tree makes manual segmentation tedious and extremely time-consuming (require several hours of analysis), only including trachea and lower airway system. Airway segmentation in CT images is a challenging problem for two reasons, it is a complex anatomy and exists limitations in image quality inherent to CT image acquisition. This paper describes a semi-automatic technique to segment the airway tree (upper airway system and trachea), using CT images of head-neck and applying a fast marching algorithm. Additionally, a heuristic is proposed to determine the algorithm parameters without have to review manually all structures to segmentation.
Práva:	© Václav Skala - UNION Agency
Vyskytuje se v kolekcích:	WSCG 2020: Full Papers Proceedings

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