Zeman R K, Davros W J, Berman P, Weltman D I, Silverman P M, Cooper C, Evans S R, Buras R R, Stahl T J, Nauta R J
Department of Radiology, Georgetown University Medical Center, Washington, DC 20007.
AJR Am J Roentgenol. 1994 Jun;162(6):1425-9. doi: 10.2214/ajr.162.6.8192012.
Three-dimensional (3D) rendering of helical (spiral) CT data is used increasingly to show abnormalities of the vascular system [1]. Abdominal applications have focused mainly on the arterial system, but the portal venous system also can be depicted effectively with this technique. In patients with pancreaticobiliary neoplasms, axial display of helical CT images generally allows accurate staging of the lesion [2, 3]. Many surgeons, however, continue to request arteriography to specifically look for evidence of vascular encasement that would preclude surgery or vascular anomalies that would alter the surgical approach [4, 5]. The purpose of this essay is to illustrate the value of 3D rendering of CT data in providing useful information for surgical planning and showing the extent of vascular involvement by tumor.
螺旋CT数据的三维（3D）重建越来越多地用于显示血管系统异常[1]。腹部应用主要集中在动脉系统，但门静脉系统也可用此技术有效显示。在胰胆肿瘤患者中，螺旋CT图像的轴位显示通常能准确判断病变分期[2,3]。然而，许多外科医生仍要求进行血管造影，以专门寻找提示无法手术的血管包绕证据或提示需改变手术方式的血管异常[4,5]。本文旨在说明CT数据三维重建在为手术规划提供有用信息及显示肿瘤血管受累范围方面的价值。
