
Ð’ работе выполнено чиÑленное моделирование Ñ‚ÐµÑ‡ÐµÐ½Ð¸Ñ ÐºÑ€Ð¾Ð²Ð¸ в аорте Ñ Ð»Ð¾ÐºÐ°Ð»ÑŒÐ½Ñ‹Ð¼ Ñужением артериального протока. ПоÑтроены упрощенные модели аорты: на оÑнове Ñнимков компьютерной томографии, при раÑширении минимального диаметра облаÑти ÑÑƒÐ¶ÐµÐ½Ð¸Ñ Ð² 1.5 раз, а также модель здоровой аорты. Ð’ работе предÑтавлен анализ гемодинамичеÑких изменений в потоке, ÑвÑзанный Ñ ÐºÐ¾Ñ€Ñ€ÐµÐºÑ†Ð¸ÐµÐ¹ патологии, как в ньютоновÑкой поÑтановке, так и Ñ ÑƒÑ‡ÐµÑ‚Ð¾Ð¼ реальных ÑвойÑтв крови (модель вÑзкоÑти Карро-Яшида). Ðа оÑнове результатов Ñкорректированы рекомендации Ð´Ð»Ñ Ð¿Ñ€Ð¾Ñ†ÐµÐ´ÑƒÑ€Ñ‹ Ð»ÐµÑ‡ÐµÐ½Ð¸Ñ ÐºÐ¾Ð°Ñ€ÐºÑ‚Ð°Ñ†Ð¸Ð¸ аорты Ñ Ð¿Ð¾Ð¼Ð¾Ñ‰ÑŒÑŽ метода баллонной ангиоплаÑтики.
In this work, numerical modeling of blood flow in the aorta with local narrowing of the arterial duct was performed. Simplified models of the aorta were built: based on computed tomography images, with the expansion of the minimum diameter of the narrowing area by 1.5 times, as well as a model of a healthy aorta. The paper presents an analysis of hemodynamic changes in the flow associated with the correction of pathology, both in the Newtonian formulation and considering the real properties of the blood (Carreau-Yasuda viscosity model). Based on the results, recommendations for the treatment of aortic coarctation using the balloon angioplasty method were adjusted.
нÑÑÑоновÑÐºÐ°Ñ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÑ, коаÑкÑаÑÐ¸Ñ Ð°Ð¾ÑÑÑ, non-newtonian fluid model, numerical modeling, гемодинамиÑеÑкие изменениÑ, ÑиÑленное моделиÑование, hemodynamic changes, aortic coarctation, newtonian fluid model, ненÑÑÑоновÑÐºÐ°Ñ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÑ
нÑÑÑоновÑÐºÐ°Ñ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÑ, коаÑкÑаÑÐ¸Ñ Ð°Ð¾ÑÑÑ, non-newtonian fluid model, numerical modeling, гемодинамиÑеÑкие изменениÑ, ÑиÑленное моделиÑование, hemodynamic changes, aortic coarctation, newtonian fluid model, ненÑÑÑоновÑÐºÐ°Ñ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÑ
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