A hierarchical scheme for geodesic anatomical labeling of airway trees

Aasa Feragen, Jens Petersen, Megan Owen, Pechin Chien Pau Lo, Laura Thomsen, Mathilde M. W. Wille, Asger Dirksen, Marleen de Bruijne

Publikation: Bidrag til bog/antologi/rapportKonferencebidrag i proceedingsForskningpeer review

24 Citationer (Scopus)
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Abstract

We present a fast and robust supervised algorithm for label-
ing anatomical airway trees, based on geodesic distances in a geometric
tree-space. Possible branch label configurations for a given unlabeled air-
way tree are evaluated based on the distances to a training set of labeled
airway trees. In tree-space, the airway tree topology and geometry change
continuously, giving a natural way to automatically handle anatomical
differences and noise. The algorithm is made efficient using a hierarchical
approach, in which labels are assigned from the top down. We only use
features of the airway centerline tree, which is relatively unaffected by
pathology.

A thorough leave-one-patient-out evaluation of the algorithm is made on
40 segmented airway trees from 20 subjects labeled by 2 medical experts.
We evaluate accuracy, reproducibility and robustness in patients with
Chronic Obstructive Pulmonary Disease (COPD). Performance is statis-
tically similar to the inter- and intra-expert agreement, and we found no
significant correlation between COPD stage and labeling accuracy.
OriginalsprogEngelsk
TitelMedical Image Computing and Computer-Assisted Intervention – MICCAI 2012 : 15th International Conference, Nice, France, October 1-5, 2012, Proceedings, Part III
RedaktørerNicholas Ayache , Hervé Delingette , Polina Golland, Kensaku Mori
Antal sider9
ForlagSpringer
Publikationsdato2012
Sider147-155
ISBN (Trykt)978-3-642-33453-5
ISBN (Elektronisk)978-3-642-33454-2
DOI
StatusUdgivet - 2012
Begivenhed15th International Conference on Medical Image Computing and Computer-Assisted Intervention - Nice, Frankrig
Varighed: 1 okt. 20125 okt. 2012
Konferencens nummer: 15

Konference

Konference15th International Conference on Medical Image Computing and Computer-Assisted Intervention
Nummer15
Land/OmrådeFrankrig
ByNice
Periode01/10/201205/10/2012
NavnLecture notes in computer science
Vol/bind7512
ISSN0302-9743

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