Article Figures & Data
Figures
- Fig 1.
Schematic representations of regions for hemodynamic data analysis. A, Regions in the arteries of terminal or bifurcation aneurysms. B, Regions in the arteries of sidewall aneurysms. C, Regions in the aneurysm dome. D and E, Application to patient-specific aneurysm models are shown for a bifurcation aneurysm (D) and a sidewall aneurysm (E).
- Fig 2.
Representative hemodynamic results for AcomA (A and B), MCA (C and D ), ICA (E and F ), and BA (G and H ) aneurysms. Top row is the 3DRA images obtained for each aneurysm during the clinical procedure. A diversity of aneurysms and complicated arterial structures can be observed. The middle row (flow pattern) and the bottom row (WSS) are the hemodynamic results obtained from the simulation. Flow pattern and WSS show differences among aneurysms, and each one has a unique pattern in the arteries and the aneurysms. WSS is in pascal units.
- Fig 3.
WSS in aneurysms at each location. Note the average WSS in arteries and aneurysms and the average WSS in the entire aneurysm area.
- Fig 4.
Flow rates in aneurysms at different locations. Note the average flow in arteries and aneurysms and the average flow velocity in the entire aneurysm area.
- Fig 5.
A and B, Validation study comparing the hemodynamic results by using 6 regions (solid) and values collected from the entire dome and parent artery (method of Shojima et al13) (hollow) shows the average WSS in the aneurysms (A ) and the average WSS in the parent arteries (B). Note in cases 5 and 8 that both methods show the same average WSS in the aneurysm.
Tables
Summary of aneurysm cases*
Characteristics Group 1 Group 2 Group 3 Group 4 Summary Age (year) Mean 65.2 64.2 51.3 57.3 59.5 Range 48–81 42–79 24–70 47–70 24–81 Sex (No. of patients) Female 5 5 6 3 19 Male 1 1 0 3 5 Unruptured-ruptured aneurysms (No. of patients) 4–2 4–2 4–2 4–2 16–8 Total No. of aneurysms 6 6 6 6 24 Largest diameter of aneurysm (mm) Mean 5.2 6.25 7.2 11.0 7.4 Range 3.6–8.2 5.1–8.1 5–8 6–15 3.6–15 Diameter of aneurysm neck (mm) Mean 3.5 3.7 4.4 7.17 4.7 Range 2.3–6.5 3.3–4 2.7–7 4–14.6 2.3–14.6 Size of aneurysm (No. of patients) <7 mm 5 4 2 1 12 7–12 mm 1 2 4 2 9 13–24 mm 0 0 0 3 3 Diameter of parent artery vessel lumen (mm) Mean 2.1 2.2 3.9 3.4 2.9 Range 1.3–3.2 1.6–2.7 3.4–5.3 2.7–4.4 1.3–4.4 -
* Groups 1, 2, 3, and 4 are aneurysms located at the AComA, MCA, ICA, and BA, respectively.
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