A nonlinear analysis of vibration properties of intracranial saccular aneurysms

Abstract

In this paper, a nonlinear analysis of vibration properties of intracranial saccural aneurysms is presented. Intracranial saccural aneurysms have been clinically observed to emit a sound (a bruit) on each heartbeat. Our hypothesis about the reason of the sound is that the bruit is caused by resonance of aneurysm’s walls. We apply a nonlinear analysis of the vibration properties to show that the resonance of aneurysms is possible. At the end of the paper an experiment in silico is carried out and conclusions are drawn.