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首页> 外文会议>Conference on Visualization, Image-Guided Procedures, and Display: Medical Imaging 2004; 20040215-20040217; San Diego,CA; US >Advanced and Standardized Evaluation of Neurovascular Compression Syndromes
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Advanced and Standardized Evaluation of Neurovascular Compression Syndromes

机译：神经血管压缩综合征的先进和标准化评估

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摘要

Caused by a contact between vascular structures and the root entry or exit zone of cranial nerves neurovascu-lar compression syndromes are combined with different neurological diseases (trigeminal neurolagia, hemifacial spasm, vertigo, glossopharyngeal neuralgia) and show a relation with essential arterial hypertension. As presented previously, the semi-automatic segmentation and 3D visualization of strongly T2 weighted MR volumes has proven to be an effective strategy for a better spatial understanding prior to operative microvascular decompression. After explicit segmentation of coarse structures, the tiny target nerves and vessels contained in the area of cerebrospinal fluid are segmented implicitly using direct volume rendering. However, based on this strategy the delineation of vessels in the vicinity of the brainstem and those at the border of the segmented CSF subvolume are critical. Therefore, we suggest registration with MR angiography and introduce consecutive fusion after semi-automatic labeling of the vascular information. Additionally, we present an approach of automatic 3D visualization and video generation based on predefined flight paths. Thereby, a standardized evaluation of the fused image data is supported and the visualization results are optimally prepared for intraoperative application. Overall, our new strategy contributes to a significantly improved 3D representation and evaluation of vascular compression syndromes. Its value for diagnosis and surgery is demonstrated with various clinical examples.
机译：由血管结构与颅神经根部进入或退出区之间的接触引起的神经血管压迫综合征与不同的神经系统疾病（三叉神经痛，半面部痉挛，眩晕，舌咽神经痛）合并，并显示出与原发性高血压的关系。如前所述，强T2加权MR量的半自动分割和3D可视化已被证明是有效的策略，可在进行手术前微血管减压之前更好地了解空间。在对粗略结构进行显式分割之后，使用直接体积渲染隐式地分割脑脊液区域中包含的微小目标神经和血管。但是，基于此策略，在脑干附近和分段的CSF子体积边界处的血管划定至关重要。因此，我们建议向MR血管造影进行注册，并在半自动标记血管信息后引入连续融合。此外，我们提出了一种基于预定义的飞行路径的自动3D可视化和视频生成方法。由此，支持融合图像数据的标准化评估，并且可视化结果被最佳地准备用于术中应用。总体而言，我们的新策略有助于显着改善3D表示并评估血管压缩综合征。各种临床实例证明了其对诊断和手术的价值。

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