Computational Investigation of the Hemodynamic Effects of the Location of a Re-Entry Tear in Uncomplicated Type B Aortic Dissection

Figures

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  Figure 1. Reconstructed geometric model of aortic dissection and the different scenarios for simulation.

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  Figure 2. Pulsatile (a) inlet velocity waveform, (b) cardiac cycles for inlet velocity waveform, (c) outlet pressure waveform, and (d) outlet velocity waveform at the three aortic branches [6,42,43].

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  Figure 3. Flow distribution in the proximal and distal locations of true and false lumens of (a–k) cases 1–11 during the systolic phase.

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  Figure 4. Flow distribution in the proximal and distal locations of true and false lumens of (a–k) cases 1–11 during the diastolic phase.

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  Figure 5. Pressure values according to the re-entry tear location in the true and false lumens during the systolic phase. First and second rows show pressure values according to the region in the true lumen ((a) T-Region 1, (b) T-Region 2, (c) T-Region 3, (d) T-Region 4, (e) T-Region 5, (f) T-Region 6), while the third and fourth rows show pressure values according to the region in the false lumen ((g) F-Region 1, (h) F-Region 2, (i) F-Region 3, (j) F-Region 4, (k) F-Region 5, (l) F-Region 6).

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  Figure 6. Pressure values according to the re-entry tear location in the true and false lumens during the diastolic phase. First and second rows show pressure values according to the region in the true lumen ((a) T-Region 1, (b) T-Region 2, (c) T-Region 3, (d) T-Region 4, (e) T-Region 5, (f) T-Region 6), while the third and fourth rows show pressure values according to the region in the false lumen ((g) F-Region 1, (h) F-Region 2, (i) F-Region 3, (j) F-Region 4, (k) F-Region 5, (l) F-Region 6).

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  Figure 7. WSS according to re-entry tear location in the true and false lumens during the systolic phase. First and second rows show the WSS values according to region in true lumen ((a) T-Region 1, (b) T-Region 2, (c) T-Region 3, (d) T-Region 4, (e) T-Region 5, (f) T-Region 6), while the third and fourth rows show the WSS values according to region in false lumen ((g) F-Region 1, (h) F-Region 2, (i) F-Region 3, (j) F-Region 4, (k) F-Region 5, (l) F-Region 6).

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  Figure 8. WSS according to re-entry tear location in the true and false lumens during the diastolic phase. First and second rows show the WSS values according to region in true lumen ((a) T-Region 1, (b) T-Region 2, (c) T-Region 3, (d) T-Region 4, (e) T-Region 5, (f) T-Region 6), while the third and fourth rows show the WSS values according to region in false lumen ((g) F-Region 1, (h) F-Region 2, (i) F-Region 3, (j) F-Region 4, (k) F-Region 5, (l) F-Region 6).