Abstract
Mechanical load plays an important role in cardiac growth and remodeling. In a previous mathematical model study the hypothesis was tested that fiber cross-fiber shear acts as a stimulus for remodeling of the pattern of myofiber orientations [7]. It was found that reorientation in response to fiber cross-fiber shear yielded realistic longitudinal and transmural components of myofiber orientation. In this study, we investigated whether circumferential-radial shear, as determined experimentally with magnetic resonance tagging, can be reproduced in the model as well. Our results show that after myofiber reorientation differences in circumferential-radial shear between model and experiment were reduced significantly. However, a complete match could not be obtained through shear-induced myofiber reorientation alone.
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Kroon, W., Delhaas, T., Bovendeerd, P., Arts, T. (2009). Adaptive Reorientation of Cardiac Myofibers: Comparison of Left Ventricular Shear in Model and Experiment. In: Ayache, N., Delingette, H., Sermesant, M. (eds) Functional Imaging and Modeling of the Heart. FIMH 2009. Lecture Notes in Computer Science, vol 5528. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-01932-6_7
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DOI: https://doi.org/10.1007/978-3-642-01932-6_7
Publisher Name: Springer, Berlin, Heidelberg
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