Article Figures & Data
Figures
- Fig 1.
The Sim&Size software anticipates intraluminal PED behavior, wall apposition, and device length after implantation on the basis of preimplantation rotational angiography DICOM data. The planned microcatheter trajectory for PED delivery is indicated in blue. Anticipated wall apposition along the covered segment is color-coded from red (no apposition) to green (good apposition). Courtesy of Cindy Wehrli and Phil Häfliger from Medtronic, Switzerland.
- Fig 2.
Boxplots illustrating differences between manually determined presumed optimal device dimensions and computed optimal PED dimensions for PED length (A) and for PED diameter (B).
- Fig 3.
Bar graph illustrating differences between manually determined presumed optimal device dimensions and computed optimal PEDs. Computed optimal device diameter was larger in 31 cases, identical to the neurointerventionalists' manual selection in 22 cases, and smaller in the remaining 21 cases. Computed optimal device length was shorter in 42 cases, identical to the neurointerventionalists' manual selection in 19 cases, and longer in the remaining 13 cases.
- Fig 4.
Bar graph illustrating the proportion of cases in which computed PED lengths were shorter than manually determined lengths for the anterior circulation. The proportion of cases in which computed optimal PED lengths were shorter increases from proximal to distal.
Tables
Characteristics Sex (No.) (%) Male 63 (85.1%) Female 11 (14.9%) Patient age (mean) (SD, range) (yr) 58.6 (13.3, 30–83) Ruptured aneurysms (No.) (%) 5 (6.8%) Acute dissection (No.) (%) 15 (20.3%) Location of aneurysms (No.) (%) Cervical ICA 10 (13.5%) Petrous ICA 13 (17.6%) Cavernous ICA 26 (35.1%) Paraophthalmic ICA 10 (13.5%) Communicating ICA 1 (1.4%) Choroidal ICA 1 (1.4%) Vertebrobasilar circulation 3 (4.1%) ACA 4 (5.4%) MCA 6 (8.1%) Maximum aneurysm diameter (mean) (SD, range) (mm) 8.8 (7.2, 2.0–40.0) Multi-PED constructs (No.) (%) 7 (9.5%) Use of additional coils (No.) (%) 11 (14.9%) Note:—ACA indicates anterior cerebral artery.
↵a Location of ICA aneurysms is provided according to the New York University classification.35 Number of patients = 74.
- Table 2:
Dimensions (diameter, length) of the manually determined presumed optimal and computed optimal PEDs
Manually Determined Computed Optimal PED diameter (mm) Mean (SD) 3.89 (0.70) 3.94 (0.69) Range 2.5–5 2.5–5 Median (IQR) 4 (3.50–4.50) 4 (3.25–4.50) PED length (mm) Mean (SD) 16.31 (3.94) 15.22 (5.21) Range 10–35 10–35 Median (IQR) 16 (14–18) 14 (11.5–18) Note:—IQR indicates interquartile range.
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