The presence of an abdominal aortic aneurysm in a one-dimensional human arterial network model resulted in a significant change in pressure-flow waveforms throughout the network.
Does the presence of an abdominal aortic aneurysm alter pressure-flow waveforms in a computational human arterial network model?
An improved 1D computational model of the human arterial network accurately predicts pressure-flow waveforms and demonstrates significant waveform alterations in the presence of abdominal aortic aneurysms.
In this study, an improved and robust one-dimensional human arterial network model is presented. The one-dimensional blood flow equations are solved using the Taylor-locally conservative Galerkin finite element method. The model improvements are carried out by adopting parts of the physical models from different authors to establish an accurate baseline model. The predicted pressure-flow waveforms at various monitoring positions are compared against in vivo measurements from published works. The results obtained show that wave shapes predicted are similar to that of the experimental data and exhibit a good overall agreement with measured waveforms. Finally, computational studies on the influence of an abdominal aortic aneurysm are presented. The presence of aneurysms results in a significant change in the waveforms throughout the network.
Low et al. (Sat,) conducted a other in Abdominal aortic aneurysm. Abdominal aortic aneurysm vs. Baseline model without aneurysm was evaluated on Pressure-flow waveforms. The presence of an abdominal aortic aneurysm in a one-dimensional human arterial network model resulted in a significant change in pressure-flow waveforms throughout the network.