Article Figures & Data
Figures
- FIG 1.
Subject-specific, multimodal image–based CFD modeling methodology. A subject-specific vascular model constructed from a 3D rotational angiography (3DRA) image, flow conditions derived from Doppler ultrasound images, and an FD model constructed from device-design data and virtually deployed into vascular model guided by 2D-DSA. Pre- and posttreatment hemodynamics characterized by corresponding CFD simulations and inflow jets visualized with velocity isosurfaces. Tx indicates Treatment; Pre-Tx, Pretreatment; Post-Tx, Posttreatment.
- FIG 2.
Examples of a completely occluded (left, subject 11) and an incompletely occluded (right, subject 7) aneurysm after treatment with FD devices. In both cases, prospective CFD predictions coincided with the angiographic outcomes at 8 weeks. Visualizations show the inflow jet (isovelocity surfaces) and flow pattern (streamlines) before and after treatment. Substantial reduction of the inflow and flow velocities is observed in the completely occluded aneurysm, but persistent posttreatment inflow and flow velocity can be seen in the incompletely occluded aneurysm. The circled white line show neck area of the aneurysm. Tx indicates Treatment; Fup,follow up; Fup DSA, Follow up DSA.
Tables
Subject Q (mL/s) VEL (cm/s) Prediction Outcome Agreement 1 0.055 0.391 I I A 2 0.013 0.127 C I D 3 0.048 0.532 I I A 4 0.013 0.112 C I D 5 0.018 0.179 I I A 6 0.053 0.362 I I A 7 0.031 0.344 I I A 8 0.094 0.664 I I A 9 0.011 0.108 C C A 10 0.007 0.156 C C A 11 0.021 0.102 C C A 12 0.100 0.831 I C D 13 0.025 0.156 C C A Note:—I indicates incomplete occlusion; C, complete occlusion; A, agreement; D, disagreement.
Predictions Outcomes Complete Incomplete Total Complete 4 2 6 Incomplete 1 6 7 Total 5 8 13
