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首页> 外文期刊>Neurosurgery >Detection of the residual lumen of intracranial aneurysms immediately after coil embolization by three-dimensional digital subtraction angiographic virtual endoscopic imaging.
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Detection of the residual lumen of intracranial aneurysms immediately after coil embolization by three-dimensional digital subtraction angiographic virtual endoscopic imaging.

机译：三维数字减影血管造影虚拟内窥镜成像技术在线圈栓塞后立即检测颅内动脉瘤的残留腔。

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OBJECTIVE: Detection of a small residual lumen after coil embolization is often difficult because of the coil mass and the overlap of the cerebral arteries. The purpose of this study was to assess the usefulness of virtual endoscopic (VE) analysis of three-dimensional digital subtraction angiographic (DSA) images for evaluation of aneurysmal occlusion immediately after the procedure. METHODS: Twenty-seven intracranial aneurysms were treated with coil embolization using a three-dimensional DSA system. Biplane and rotational DSA scanning was performed before and immediately after the procedures. VE images were obtained at a separate workstation, after transfer of the rotational images. Two-dimensional (2D) DSA images and VE images obtained after the procedure were assessed with respect to aneurysmal occlusion. Morphological outcomes and other factors, including location, size, volumetric ratio (coil volume/aneurysm volume), and residual sites, were also evaluated. RESULTS: Seven aneurysms were evaluated as complete occlusion (CO) on both 2D DSA images and VE images. Twelve aneurysms exhibited residual lumina on both 2D DSA images and VE images. Five aneurysms were evaluated as CO on 2D DSA images and as incomplete occlusion on VE images. There were no recurrences among the aneurysms that were evaluated as CO on VE images. Two of five aneurysms that were evaluated as CO on 2D DSA images and as incomplete occlusion on VE images demonstrated regrowth in follow-up examinations. Residual sites and volumetric ratios were correlated with aneurysmal regrowth. CONCLUSION: VE imaging can demonstrate a residual lumen more frequently than can 2D DSA imaging and is useful for evaluating aneurysmal occlusion after coil embolization.
机译：目的：由于线圈的质量和脑动脉的重叠，通常难以检测出线圈栓塞后残留的小管腔。这项研究的目的是评估三维数字减影血管造影（DSA）图像的虚拟内窥镜（VE）分析在手术后立即评估动脉瘤闭塞的有用性。方法：采用三维DSA系统对27例颅内动脉瘤进行线圈栓塞治疗。在手术之前和之后立即进行双翼和旋转DSA扫描。旋转图像传输后，在单独的工作站上获得了VE图像。评估手术后获得的二维（2D）DSA图像和VE图像的动脉瘤闭塞情况。还评估了形态学结果和其他因素，包括位置，大小，体积比（线圈体积/动脉瘤体积）和残留部位。结果：7个动脉瘤在2D DSA图像和VE图像上均被评估为完全闭塞（CO）。十二个动脉瘤在2D DSA图像和VE图像上均显示出残留的管腔。 5个动脉瘤在2D DSA图像上被评估为CO，而在VE图像上被评估为不完全闭塞。在VE图像上被评估为CO的动脉瘤中没有复发。在2D DSA图像上被评估为CO且在VE图像上被评估为不完全闭塞的5个动脉瘤中有2个在后续检查中显示了再生长。残留部位和容积比与动脉瘤的再生长相关。结论：VE成像比2D DSA成像能更频繁地显示残留腔，对于评估线圈栓塞后的动脉瘤闭塞是有用的。

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