Department of Neurosurgery, North Shore University Hospital, Northwell Health, Manhasset, USA.
Department of Neurosurgery, Southside Hospital, Northwell Health, Bay Shore, USA.
Interv Neuroradiol. 2021 Aug;27(4):473-480. doi: 10.1177/1591019920987685. Epub 2021 Jan 21.
Accurate sizing of the Woven EndoBridge (WEB) device is of critical importance as it determines procedural safety and successful occlusion of wide neck bifurcation aneurysms. The aim of this study was to assess the ability of aneurysm volume to assist in accurate WEB size selection.
All patients with an intracranial aneurysm treated with the WEB SL or WEB SLS device between March 2019 and October 2019 were identified for this retrospective study. Aneurysm volumes were calculated with auto-segmentation using a three-dimensional volume rendering program on an independent Syngo workstation (Siemens Healthineers AG). Pearson correlation coefficients were calculated for aneurysm auto-segmented volumes and WEB volumes, as well as for aneurysm height × width and WEB height × width. Follow-up angiographic outcomes were collected at 6-9 months post-procedure.
Twenty-nine aneurysms were evaluated by 3D rotational angiography. The correlation coefficient with WEB size was larger for auto-segmented aneurysm volumes (r = 0.979) compared to height × width measurements (r = 0.867). Using Fisher r-to-z transformations, we found the difference between the two correlations to be statistically significant (p = 0.0007). Follow-up angiography available in 13 subjects demonstrated an 85% complete aneurysm occlusion rate.
Aneurysm volumes are highly correlated with WEB volumes, with auto-segmentation volumes displaying statistically significant difference against conventional height by width measurements. These results suggest that volumetric measurements of aneurysm size provide a useful adjuvant measure to assist in appropriate size selection of the WEB device.
准确测量编织式 EndoBridge（WEB）装置的大小至关重要，因为它决定了手术的安全性和宽颈分叉动脉瘤的成功闭塞。本研究旨在评估动脉瘤体积在辅助 WEB 尺寸选择中的作用。
本回顾性研究纳入了 2019 年 3 月至 2019 年 10 月期间使用 WEB SL 或 WEB SLS 装置治疗的所有颅内动脉瘤患者。在独立的 Syngo 工作站（西门子医疗公司）上使用三维容积渲染程序自动分割计算动脉瘤体积。计算动脉瘤自动分割体积与 WEB 体积、动脉瘤高度×宽度与 WEB 高度×宽度之间的 Pearson 相关系数。收集术后 6-9 个月的随访血管造影结果。
3D 旋转血管造影评估了 29 个动脉瘤。与高度×宽度测量值（r=0.867）相比，自动分割的动脉瘤体积与 WEB 尺寸的相关系数更高（r=0.979）。通过 Fisher r-to-z 变换，我们发现这两种相关性之间的差异具有统计学意义（p=0.0007）。13 名患者的随访血管造影显示完全闭塞率为 85%。
动脉瘤体积与 WEB 体积高度相关，自动分割体积与传统的高度×宽度测量值相比具有统计学显著差异。这些结果表明，动脉瘤大小的体积测量提供了一种有用的辅助措施，有助于 WEB 装置的适当尺寸选择。
