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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Evaluation of Lobar Biomechanics during Respiration Using Image Registration
verfasst von : Kai Ding, Youbing Yin, Kunlin Cao, Gary E. Christensen, Ching-Long Lin, Eric A. Hoffman, Joseph M. Reinhardt
Erschienen in: Medical Image Computing and Computer-Assisted Intervention – MICCAI 2009
Verlag: Springer Berlin Heidelberg
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The human lungs are divided into five independent compartments called lobes. The lobar fissures separate the lung lobes. It is hypothesized that the lobar surfaces slide against each other during respiration. We propose a method to evaluate the sliding motion of the lobar surfaces during respiration using lobe-by-lobe mass-preserving non-rigid image registration. We measure lobar sliding by evaluating the relative displacement on both sides of the fissure. The results show a superior-inferior gradient in the magnitude of lobar sliding. We compare whole-lung-based registration accuracy to lobe-by-lobe registration accuracy using vessel bifurcation landmarks.