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Modelling pulmonary blood flow Tawhai MH; Burrowes KSRespir Physiol Neurobiol 2008[Nov]; 163 (1-3): 150-7Computational model analysis has been used widely to understand and interpret complexity of interactions in the pulmonary system. Pulmonary blood transport is a multi-scale phenomenon that involves scale-dependent structure and function, therefore requiring different model assumptions for the microcirculation and the arterial or venous flows. The blood transport systems interact with the surrounding lung tissue, and are dependent on hydrostatic pressure gradients, control of vasoconstriction, and the topology and material composition of the vascular trees. This review focuses on computational models that have been developed to study the different mechanisms contributing to regional perfusion of the lung. Different models for the microcirculation and the pulmonary arteries are considered, including fractal approaches and anatomically-based methods. The studies that are reviewed illustrate the different complementary approaches that can be used to address the same physiological question of flow heterogeneity.|*Models, Biological[MESH]|*Pulmonary Circulation[MESH]|Animals[MESH]|Computer Simulation[MESH]|Humans[MESH]|Lung/*blood supply[MESH]|Regional Blood Flow[MESH] |
