Image-Based Bronchial Anatomy Codification for Biopsy Guiding in Video Bronchoscopy
Ramírez, Esmitt (Centre de Visió per Computador (Bellaterra, Catalunya))
Sánchez Ramos, Carles (Centre de Visió per Computador (Bellaterra, Catalunya))
Borràs, Agnés (Centre de Visió per Computador (Bellaterra, Catalunya))
Diez-Ferrer, Marta (Hospital Universitari de Bellvitge)
Rosell, Antoni (Hospital Universitari de Bellvitge)
Gil, Debora (Centre de Visió per Computador (Bellaterra, Catalunya))
Universitat Autònoma de Barcelona

Imprint:	Cham, Switzerland: Springer, 2018
Description:	9 pag.
Abstract:	Bronchoscopy examinations allow biopsy of pulmonary nodules with minimum risk for the patient. Even for experienced bronchoscopists, it is difficult to guide the bronchoscope to most distal lesions and obtain an accurate diagnosis. This paper presents an image-based codification of the bronchial anatomy for bronchoscopy biopsy guiding. The 3D anatomy of each patient is codified as a binary tree with nodes representing bronchial levels and edges labeled using their position on images projecting the 3D anatomy from a set of branching points. The paths from the root to leaves provide a codification of navigation routes with spatially consistent labels according to the anatomy observes in video bronchoscopy explorations. We evaluate our labeling approach as a guiding system in terms of the number of bronchial levels correctly codified, also in the number of labels-based instructions correctly supplied, using generalized mixed models and computer-generated data. Results obtained for three independent observers prove the consistency and reproducibility of our guiding system. We trust that our codification based on viewer's projection might be used as a foundation for the navigation process in Virtual Bronchoscopy systems.
Grants:	Ministerio de Economía y Competitividad DPI2015-65286-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1470 Ministerio de Economía, Industria y Competitividad BES-2016-078042
Rights:	Tots els drets reservats.
Language:	Anglès
Series:	Lecture Notes in Computer Science book series (LNCS) ; 11041
Document:	Capítol de llibre ; Versió acceptada per publicar
Subject:	Biopsy guiding ; Bronchoscopy ; Lung biopsy ; Intervention guiding ; Airway codification
Published in:	OR 2.0 Context-Aware Operating Theaters, Computer Assisted Robotic Endoscopy, Clinical Image-Based Procedures, and Skin Image Analysis, 2018, p. 214-222, ISBN 978-3-030-01200-7

DOI: 10.1007/978-3-030-01201-4_23

Postprint 11 p, 652.1 KB

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