Graph-based segmentation of the pediatric trachea in MR images to model growth

Abstract

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Development of a preliminary pediatric tracheal growth model from magnetic resonance images

“…Proprietary software was used to perform the segmentation and two‐dimensional cross‐sectional measurements of the trachea. The segmentation is a graph–graph based approach described more thoroughly in a recent thesis . Similar software, Pulmonary Workstation, has been validated for human airways and is commercially available to delineate the airway in CT images (VIDA Inc., Coralville, IA).…”

3-dimensional throat region segmentation from MRI data based on fourier interpolation and 3-dimensional level set methods

“…Initialization of a snake contour using a threshold based Canny edge filter permit this technique [6] only for computed tomography (CT) images. In a semi-automatic approach [7], a cost function is created from the gradient and knowledge of trachea. A graph based approach is utilized to find the least cost surface which is labeled as the trachea.…”

“…A fully automatic approach using intensity clustering and graph cut technique is proposed in [8]. These techniques [7][8], make a few assumptions about roundness (circularity) and area of the trachea which cannot be assumed for the throat regions in this work.…”