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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/168037
Segmentation of distal airways using structural analysis
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Segmentation of airways in Computed Tomography (CT) scans is a must for accurate support of diagnosis and intervention of many pulmonary disorders. In particular, lung cancer diagnosis would benefit from segmentations reaching most distal airways. We present a method that combines descriptors of bronchi local appearance and graph global structural analysis to fine-tune thresholds on the descriptors adapted for each bronchial level. We have compared our method to the top performers of the EXACT09 challenge and to a commercial software for biopsy planning evaluated in an own-collected data-base of high resolution CT scans acquired under different breathing conditions. Results on EXACT09 data show that our method provides a high leakage reduction with minimum loss in airway detection. Results on our data-base show the reliability across varying breathing conditions and a competitive performance for biopsy planning compared to a commercial solution.
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GIL, Debora, et al. Segmentation of distal airways using structural analysis. Plos One. 2019-12-19. Vol. 14, num. Issue 12. [consulted: 13 of August of 2026]. Available at: https://hdl.handle.net/2445/168037