The next seminar “Modelling of materials – theory, model reduction and efficient numerical methods” will take place on Monday (March 2, 2020) in the room K2 from 9:00 till 10:00. The talk will be given by Helena Švihlová. Please see the details below.
Speaker: Helena Švihlová
Title: Interpretation of the magnetic resonance data and their use in computational fluid dynamics
Abstract: The aortic valve stenosis and its pathological severity can be evaluated through the pressure difference in the aortic root. This can be computed from the velocity measured non-invasively by Doppler echocardiography or magnetic resonance imaging. The new methods in magnetic resonance imaging (4D PC-MRI) allow the use of data-driven methods.
In this contribution, we will focus more on the physiological flow in the aortic root and aorta and the slip mechanism acting on the boundary. We will show the impact of the chosen wall boundary conditions to the vortex formation in the aortic root. Finally, we will present the velocity data obtained from 4D PC-MRI and we will discuss their validity.