Flow field in a realistic model of aortic arch having three branches

Abstract

It has frequently happened in a complicated flow field passage of the blood especially in an inner curved part of an aortic arch that a disease of the blood vessel breaks out by hardening of the arteries. Therefore it is important to make clear distribution of the velocity in human aortic arch. Therefore we made a 3 dimensional realistic model of aortic arch using reconstructed volume data with use of Visible Human Project dataset. The volume image showed that thoracic aorta had very little torsion and angle between ascending aorta and thoracic aorta was significantly. In order to study the influence of the deflection vessel, the velocity profiles in the 3D aortic arch model, which was based on VHP data, was visualized and measured by using PIV and LDV on the steady flow condition and pulsatile flow condition.