Numerical methods are used to provide quantitative and qualitative information about effects of pulmonary disorders on blood flow. From patient’s CT images, arterial geometries are extracted and compared for healthy and unhealthy conditions. We show that pulmonary artery shape is strongly affected by the pulmonary disorders, e.g., the inlet is elongated and the branches are bent. In order to clarify the effect of geometrical change on the blood flow, we performed computational simulation of blood flow in the extracted geometries.

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