Pressure waveforms at different outlets look identical
Posted: Thu Jul 18, 2019 8:56 am
Hello,
I am attempting to use SimVascular to determine the pressure waveforms at the outlets of an aorta with an aortic coarctation. I am using the 2019 version of SimVascular, the svSolver, and RCR boundary conditions. Unfortunately, when I run the simulations my results show that the pressure waveforms at the supra-aortic outlets and the descending aorta are exactly the same. In reality, there should be an almost 20 mm Hg difference between the peak pressure at these different outlets. The pressure waveforms at the outlets before the coarctation and after the coarctation should be drastically different, but my results from the all-results_pressures file show no difference.
I am using flow data at the ascending and descending aorta, and the RCR Windkessel boundary conditions at the LSA, LCC, and Braciocephalic outlets with the following values
LSA Outlet: 452, 0.0002175, 8586
LCC Outlet: 474.8, 0.0001857, 9627
Brachiocephalic: 330.2, 0.0002967, 6275
Are there different settings that I should be using so that there is more variation between my pressure waveforms? I have attached images of the pressure waveforms.
Thank you for your time.
I am attempting to use SimVascular to determine the pressure waveforms at the outlets of an aorta with an aortic coarctation. I am using the 2019 version of SimVascular, the svSolver, and RCR boundary conditions. Unfortunately, when I run the simulations my results show that the pressure waveforms at the supra-aortic outlets and the descending aorta are exactly the same. In reality, there should be an almost 20 mm Hg difference between the peak pressure at these different outlets. The pressure waveforms at the outlets before the coarctation and after the coarctation should be drastically different, but my results from the all-results_pressures file show no difference.
I am using flow data at the ascending and descending aorta, and the RCR Windkessel boundary conditions at the LSA, LCC, and Braciocephalic outlets with the following values
LSA Outlet: 452, 0.0002175, 8586
LCC Outlet: 474.8, 0.0001857, 9627
Brachiocephalic: 330.2, 0.0002967, 6275
Are there different settings that I should be using so that there is more variation between my pressure waveforms? I have attached images of the pressure waveforms.
Thank you for your time.