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. 2026 Jan 24;49(1):159. doi: 10.1007/s10143-025-04120-w

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© The Author(s) 2026

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — Three-dimensional colormap and histogram representation of AWE quantification. A T1WI high-resolution MRI and (B) T1WI + Gd high-resolution MRI of an anterior communicating artery aneurysm (white arrowheads). C Three-dimensional colormap of the T1WI + Gd signal intensity of the aneurysm wall, with areas of higher AWE shown in yellow and areas of lower AWE shown in blue. D Histogram representation of T1WI (black) and T1WI + Gd (red) signal intensity distribution. The curve is shifted to the right after contrast-Gd administration. The mean signal intensity in T1WI + Gd is calculated as 3D-CAWE (red line)