Case Studies of the Human Cardiovascular System - Computational Hemodynamics: Theory, Modelling and Applications - page 218

Fig. 7.29 Flow measure-
ment and visualisation in
an aneurysm. Counter flow
and impinging jet is shown
to act on the aneurysm.
Impingement of jet onto
an aneurysm may result
in pre-ruptured cases, and
therefore is of importance
in investigation. Early
detection of such undesir-
able case can be achieved
and stenting can be imple-
mented in advance well
before rupture occurs

7.4.7 Closure

In this case study, simulation of stenting inside a diseased artery at the entrance of
the aneurysm was performed. The reason for stent insertion inside the aneurysm
is to exclude it from systemic blood circulation, so that the aneurysm will shrink
gradually (due to reduced pressure) and eventually become smaller. Although this
may induce stagnation and possible thrombosis formation after stenting the chance
of rupture is low, as long as the aneurysm does not grow. Aneurysms can form on
both sides of the artery wall and so for future work, simulations of different types
of diseased arterial geometries will be more useful for understanding of the effect
of stent treatment. Three dimensional stent models for patient-specific aneurysm
would also enhance the clinical value this case study.

7.5 Analysis of Blood Flow in Cardiac Chamber

7.5.1 Introduction to Heart Chamber Flow Visualisation

Computer simulations particularly advantageous for situations where experimental
measurements require further detail, and/or when there is a need to prepare a predic-
tive platform. Another potential scenario is the simulation of mechanical structures
that are implanted in the human heart.