In situ casting and imaging of the rat airway tree for accurate 3D reconstruction

Richard E. Jacob, Sean M. Colby, Senthil Kabilan, Daniel R. Einstein, James P. Carson
2013 Experimental Lung Research  
The use of anatomically accurate, animal-specific airway geometries is important for understanding and modeling the physiology of the respiratory system. One approach for acquiring detailed airway architecture is to create a bronchial cast of the conducting airways. However, typical casting procedures either do not faithfully preserve the in vivo branching angles or produce rigid casts that when removed for imaging are fragile and thus easily damaged. We address these problems by creating an in
more » ... situ bronchial cast of the conducting airways in rats that can be subsequently imaged in situ using 3D micro-CT imaging. We also demonstrate that deformations in airway branch angles resulting from the casting procedure are small, and that these angle deformations can be reversed through an interactive adjustment of the segmented cast geometry.
doi:10.3109/01902148.2013.801535 pmid:23786464 pmcid:PMC3928801 fatcat:cb4eqrvguzd7ppx3uiaiopml5a