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. 2020 Jan 20;87(2):357–367. doi: 10.1093/neuros/nyz557

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© Congress of Neurological Surgeons 2020.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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FIGURE 4. — Unruptured MCA aneurysm (mean transverse diameter: 5.1 mm; mean height: 3.5 mm; neck: 5.4 mm). A, DSA, working view, shows the aneurysm. B and C, Postoperative DSA (unsubstracted and subtracted views, respectively) shows the detached WEB device (WEB SL 5 × 3 mm) and residual flow in the aneurysm and the device. D, One-year DS shows an aneurysm remnant. E, Two-year DSA shows a stable aneurysm remnant.