Modelling the human cardiac fluid mechanics
We present a virtual heart model simulating the flow in the left human ventricle and in the aorta. Because of the lack of in vivo structure data of the human ventricle, the active ventricle movement is given by a time-dependent ventricle model that is derived from in vivo image data of a nuclear spi...
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| Format: | Online |
| Jezik: | engleski |
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KIT Scientific Publishing
2021
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| Online pristup: | 34580 |
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| _version_ | 1869518557999529984 |
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| author | Oertel, Herbert |
| author_browse | Oertel, Herbert |
| author_facet | Oertel, Herbert |
| author_sort | Oertel, Herbert |
| collection | Directory of Open Access Books |
| description | We present a virtual heart model simulating the flow in the left human ventricle and in the aorta. Because of the lack of in vivo structure data of the human ventricle, the active ventricle movement is given by a time-dependent ventricle model that is derived from in vivo image data of a nuclear spin MRT tomograph of a healthy human heart. The passive part of the virtual heart model consists of a model aorta and vena cava, and of heart valves. As the movement is due to the flow in the inactive region of the heart, a coupling of flow and structure is necessary in the model to take into account the deviation of the aorta and the closing and opening of the heart valves. The flow calculation is performed with a finite volume method, while the structure of the aorta is calculated using the finite element method. The flow resistance of the time simulation in the body is taken into account with a circulation model. In the outlook of the article, we show how the virtual heart model can be used to predict flow losses due to pathological ventricle contraction defects in an unhealthy human heart. |
| format | Online |
| id | doab-20.500.12854ir-53747 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | KIT Scientific Publishing |
| publisherStr | KIT Scientific Publishing |
| record_format | ojs |
| spelling | doab-20.500.12854ir-537472024-04-09T23:16:32Z Modelling the human cardiac fluid mechanics Oertel, Herbert T1-995 pathological ventricle defects Computer Fluid Dynamics in vivo left human ventricle MRI tomography thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues We present a virtual heart model simulating the flow in the left human ventricle and in the aorta. Because of the lack of in vivo structure data of the human ventricle, the active ventricle movement is given by a time-dependent ventricle model that is derived from in vivo image data of a nuclear spin MRT tomograph of a healthy human heart. The passive part of the virtual heart model consists of a model aorta and vena cava, and of heart valves. As the movement is due to the flow in the inactive region of the heart, a coupling of flow and structure is necessary in the model to take into account the deviation of the aorta and the closing and opening of the heart valves. The flow calculation is performed with a finite volume method, while the structure of the aorta is calculated using the finite element method. The flow resistance of the time simulation in the body is taken into account with a circulation model. In the outlook of the article, we show how the virtual heart model can be used to predict flow losses due to pathological ventricle contraction defects in an unhealthy human heart. 2021-02-11T19:58:29Z 2021-02-11T19:58:29Z 2019-07-30 20:01:58 2005 book 34580 3937300821 https://directory.doabooks.org/handle/20.500.12854/53747 eng image/jpeg Attribution-NonCommercial-NoDerivatives 4.0 International https://www.ksp.kit.edu/3937300821 KIT Scientific Publishing 10.5445/KSP/1000003551 10.5445/KSP/1000003551 68fffc18-8f7b-44fa-ac7e-0b7d7d979bd2 3937300821 49 p. open access |
| spellingShingle | T1-995 pathological ventricle defects Computer Fluid Dynamics in vivo left human ventricle MRI tomography thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues Oertel, Herbert Modelling the human cardiac fluid mechanics |
| title | Modelling the human cardiac fluid mechanics |
| title_full | Modelling the human cardiac fluid mechanics |
| title_fullStr | Modelling the human cardiac fluid mechanics |
| title_full_unstemmed | Modelling the human cardiac fluid mechanics |
| title_short | Modelling the human cardiac fluid mechanics |
| title_sort | modelling the human cardiac fluid mechanics |
| topic | T1-995 pathological ventricle defects Computer Fluid Dynamics in vivo left human ventricle MRI tomography thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues |
| topic_facet | T1-995 pathological ventricle defects Computer Fluid Dynamics in vivo left human ventricle MRI tomography thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues |
| url | 34580 |
| work_keys_str_mv | AT oertelherbert modellingthehumancardiacfluidmechanics |