2014
DOI: 10.4067/s0717-95022014000100050
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Bronchial tree Architecture in Mammals of Diverse Body Mass

Abstract: SUMMARY:The anatomy of mammal's lung air space constitutes the bronchial tree which disposition is associated to air flux dynamics. Casts obtained from human, pig and rat lungs were studied to analyze possible differences of the bronchial tree architecture in mammals with diverse dimensions and posture. Air spaces were filled with polymers through trachea followed by acid corrosion. Tracheal and main bronchial division's diameters were measured to relate with body mass using allometry. The results revealed a d… Show more

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Cited by 28 publications
(27 citation statements)
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“…The tree generated from the algorithm was comparable to the geometry extracted from CT [29-31], which showed monopodiality, and is comparable to the dog lung airways [22]. The generated tree morphology also showed similarity with that reported in previous studies [17,26,33]. …”
Section: Discussionsupporting
confidence: 71%
See 1 more Smart Citation
“…The tree generated from the algorithm was comparable to the geometry extracted from CT [29-31], which showed monopodiality, and is comparable to the dog lung airways [22]. The generated tree morphology also showed similarity with that reported in previous studies [17,26,33]. …”
Section: Discussionsupporting
confidence: 71%
“…Details of pig airway geometry are scarce or incomplete [25,26]. Since the morphology of animal airways can be significantly different from humans, approximating pig airway geometry by its human counterpart can lead to errors in both computational and numerical studies.…”
Section: Introductionmentioning
confidence: 99%
“…The iterative redistribution of the sub-volume seeds in the case where the tree expansion stops under the condition of TB length; this should eradicate the very few, but still important unrealistically large acini predicted by the model (Fig 9). Furthermore, the parameters affecting branching and geometric symmetry could be examined and configured for the adaptation of the model with respect to species (increased symmetry vs monopody) [71]. Additionally, the incorporation of features of disease, such as the bronchial cross-section shape and perimeter or radius of curvature, as well as variations referring to respiratory motion would be necessary for the model to provide more precise calculations for diagnosis and therapy.…”
Section: Discussionmentioning
confidence: 99%
“…Unfortunately, the MMPD software has not been adapted to calculate deposition in pig's lung. Considering that human and porcine lungs have similar overall volume and the alveolar size as well as similar number of bronchial generations [17,18], we expect that the software developed for the human lungs will adequately describe deposition in the porcine lungs provided that the model parameters are chosen correctly.…”
Section: Comparison With Theoretical Predictionsmentioning
confidence: 99%
“…First, as applied to modeling deposition in human lungs, a certain difference in the anatomy of swine and human lungs should be taken into account. While the human airway tree has a bipodial branching pattern, branching pattern of the swine Deadlocks in the lung areas slowly exchanging air for carbon dioxide are colored in orange tree is monopodial with larger ''parent'' bronchus giving rise to smaller side-branches [17]. Second, preparation procedure might result in some changes in the lung structure due to shrinkage of collagen.…”
Section: Nanoaerosol Depositionmentioning
confidence: 99%