Elolf E, Tatagiba M, Samii M
Department of Neurosurgery, Hospital Nordstadt, Hannover, Germany.
Comput Aided Surg. 1998;3(2):89-94. doi: 10.1002/(SICI)1097-0150(1998)3:2<89::AID-IGS6>3.0.CO;2-G.
Three-dimensional (3-D) computed tomographic (CT) reconstruction of the skull base region has added a different perspective to the data set usually presented in axial or coronal slices. It simultaneously demonstrates the spatial relationship of bones, tumors, vessels, and ventricles in a single illustration. Forty-nine patients with skull base lesions (44 with neoplastic and 5 with vascular pathologies) were examined with a spiral CT and 3-D reconstruction prior to surgery. A scanner and a maximum of 95 mL of iodized contrast media were used to enhance either tumor or vessels according to the specific pathology. Preoperative 3-D reconstruction was performed. It rendered a spatial representation of the pathology using data similar to that usually acquired in routine preoperative diagnostics. Complex anatomy can be visualized with only a handful of pictures. It was possible to easily compare various surgical approaches to the lesion on the basis of the 3-D computer model and to simulate the surgeon's view. The short time span (1 h average) necessary for reconstruction and editing allows the application of this method as a routine preoperative procedure for selected skull base pathologies.
颅底区域的三维（3-D）计算机断层扫描（CT）重建为通常以轴向或冠状切片呈现的数据集增添了不同的视角。它能在一幅图像中同时展示骨骼、肿瘤、血管和脑室的空间关系。四十九例颅底病变患者（44例肿瘤性病变和5例血管性病变）在手术前接受了螺旋CT和3-D重建检查。根据具体病变情况，使用一台扫描仪和最多95毫升的碘化造影剂来增强肿瘤或血管的显影。进行了术前3-D重建。它利用与常规术前诊断中通常获取的数据相似的数据，呈现出病变的空间表现。仅用少量图片就能将复杂的解剖结构可视化。基于3-D计算机模型，可以轻松比较针对病变的各种手术入路，并模拟外科医生的视角。重建和编辑所需的短时间跨度（平均1小时）使得该方法能够作为选定颅底病变的常规术前程序应用。
