Pulmonary Lobe Segmentation with Level Sets

Alexander Schmidt-Richberg, Jan Ehrhardt, Matthias Wilms, René Werner, Heinz Handels


Automatic segmentation of the separate human lung lobes is a crucial task in computer aided diagnostics and intervention planning, and required for example for determination of disease spreading or pulmonary parenchyma quantification. In this work, a novel approach for lobe segmentation based on multi-region level sets is presented. In a first step, interlobular fissures are detected using a supervised enhancement filter. The fissures are then used to compute a cost image, which is incorporated in the level set approach. By this, the segmentation is drawn to the fissures at places where structure information is present in the image. In areas with incomplete fissures (e.g. due to insufficient image quality or anatomical conditions) the smoothing term of the level sets applies and a closed continuation of the fissures is provided. The approach is tested on nine pulmonary CT scans. It is shown that incorporating the additional force term improves the segmentation significantly. On average, 83% of the left fissure is traced correctly; the right oblique and horizontal fissures are properly segmented to 76% and 48%, respectively.
Original languageEnglish
Title of host publicationMedical Imaging 2012: Image Processing
EditorsSébastien Ourselin, David R. Haynor
Publication date14.02.2012
Pages83142V1 - 83142V8
ISBN (Print)9780819489630
Publication statusPublished - 14.02.2012
EventImage Processing, SPIE Medical Imaging 2012
- San Diego, United States
Duration: 04.02.201209.02.2012


Dive into the research topics of 'Pulmonary Lobe Segmentation with Level Sets'. Together they form a unique fingerprint.

Cite this