Article Figures & Data
Figures
- Fig 1.
Rotational angiograms prior and immediately after stent placement and corresponding vascular models of 3 aneurysms associated with posttreatment rupture. Top row, patient 1, left to right: 3DRA before treatment, vascular pretreatment model, 3DRA without contrast after stent deployment, and vascular posttreatment model. Center row, patient 2, left to right: 3DRA before treatment, 3DRA without contrast after stent deployment, vascular posttreatment model, and stent design. Bottom row, patient 3, left to right: 3DRA before treatment, vascular pretreatment model, 3DRA after stent placement, and vascular posttreatment model.
- Fig 2.
Rotational angiograms and computational models of 4 aneurysms successfully treated with flow diverters. Left to right: 3DRA image before treatment, computational model with stent in place, 3DRA without contrast showing the deployed stents, and follow-up 3DRA images. Rows top to bottom correspond to patients 4–7, respectively.
- Fig 3.
Visualizations of the hemodynamics of patients 1–3 at peak systole before (left column) and after (right column) stent placement. Top to bottom: isovelocity surfaces, velocity color-coded streamlines, WSS distribution, and pressure distributions.
- Fig 4.
Visualizations of the hemodynamics of patients 4–7 at peak systole before (left column) and after (right column) stent placement. Top to bottom: isovelocity surfaces, velocity color-coded streamlines, WSS distribution, and pressure distributions.
- Fig 5.
Electric circuit analog.
Tables
Patient No. Age (yr)/Sex Size (mm) Location Treatment Outcome 1 62/F 26 Left ICA superior-hypophyseal 1 PED-associated with 50% stenosis treated with PTA Ruptured at day 4 2 54/F 25 Right ICA ophthalmic 1 PED Ruptured intraprocedurally 3 60/F 38 Right ICA ophthalmic 2 PED-restricted PAs opened with stenting Ruptured at day 7 4 59/F 3.1 Left ICA ophthalmic 1 PED Complete occlusion at 6 mo 5 39/F 4.6 Right ICA superior-hypophyseal 1 PED Complete occlusion at 6 mo 6 58/M 9.7 Left ICA cavernous 2 PEDs Complete occlusion at 12 mo 7 58/F 26 Right ICA ophthalmic 2 PEDs Complete occlusion at 6 mo - Table 2:
Pressures, resistances, and flow rates corresponding to the electric circuit analog of patient 2 (Fig 5)
Case Ps (mm Hg) Pi (mm Hg) Po (mm Hg) Rp (dyne/s/cm5) Rd (dyne/s/cm5) Ra (dyne/s/cm5) Q (mL/s) ΔP (mm Hg) Pre 120 110 100 5800 57,900 5800 2.30 – Post 120 112 72 5800 55,000 23,200 1.90 2 125 117 77 5800 55,000 23,200 1.98 7 130 122 81 5800 55,000 23,200 2.06 12 135 126 86 5800 55,000 23,200 2.15 16 140 130 90 5800 55,000 23,200 2.22 20 145 135 95 5800 55,000 23,200 2.30 25
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