LEADER 02423nam 2200349z- 450 001 9910592287303321 005 20231214133143.0 035 $a(CKB)4920000000101769 035 $a(oapen)https://directory.doabooks.org/handle/20.500.12854/53748 035 $a(EXLCZ)994920000000101769 100 $a20202102d2006 |y 0 101 0 $aeng 135 $aurmn|---annan 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aModelling the human cardiac fluid mechanics. 2nd ed 210 $cKIT Scientific Publishing$d2006 215 $a1 electronic resource (39 p. p.) 311 $a3-86644-087-1 330 $aIn the second edition of the article a virtual heart modelsimulating the flow in the active left human ventricle andatrium is presented. Because in vivo myocardium data is notavailable, the movement of the active ventricle and its atriumis given by three-dimensional, time-dependent invivo image dataof a nuclear spin MRI tomograph. The passive part of the virtualheart model consists of a model aorta and of two-dimensionallymodelled heart valves. As the flow is actively driven by theventricle and atrium, a coupling off low and structure isnecessary to take into account the deviation of the aorta andthe closing and opening of the heart valves. This coupling isreplaced by the movement given by MRI tomograph and ultrasonicDoppler echocardiography, since we focus on the flow simulationin the left pumping ventricle. The flow simulation is performedby a validated commercial software package that uses the finitevolume method. The flow resistance of the circulation throughthe body is taken into account with a simplified circulationmodel. The article shows how the virtual heart model can be usedto predict flow losses and flow structures due to pathologicalventricle contraction defects. It provides as an example theflow simulation of an unhealthy human ventricle with ananeurysm. The flow structure and flow losses are consideredbefore and after surgery. 610 $aHerzmuskel 610 $aNMR-Tomographie 610 $aHerzkrankheit 610 $aNumerische Strömungssimulation 610 $aHerz 610 $ain vivo 700 $aOertel$b HerbertSpiegel, KathrinDonisi, Sven$4auth$01289844 906 $aBOOK 912 $a9910592287303321 996 $aModelling the human cardiac fluid mechanics. 2nd ed$93021234 997 $aUNINA