Smet M H, Marchal G, Van Cleynenbreugel J, Suetens P, Verstreken K, Baert A L
Dienst Radiologie, Universitaire Ziekenhuizen K.U.L., Leuven.
J Belge Radiol. 1995 Apr;78(2):110-3.
Three-dimensional (3D) computed tomographic reformations are used as an adjunct to standard axial computed tomography (CT) in the evaluation of disorders affecting areas of complex anatomy such as the skull, the spine, the pelvis, hands and feet. 3D-CT can provide a clear impression of lesion extent, pattern, shape and proximity to adjacent structures. This unique spatial information potentially has a significant impact on decisions regarding resectability, surgical approach and repair. The basic requirements for high-quality 3D-reformations are an absence of patient movement and narrow-width transaxial sections. Spiral CT significantly contributes to fulfilling these requirements. In addition, spiral CT scan data can be used to produce the ultimate representation of the third dimension: a life-size palpable medical model. In this review we describe the process of three-dimensional reconstruction and highlight potential problems arising during 3D-imaging processing. Useful clinical applications of spiral CT for 3D-visualization of skeletal pathology are discussed.
三维（3D）计算机断层扫描重建技术作为标准轴向计算机断层扫描（CT）的辅助手段，用于评估影响复杂解剖区域（如颅骨、脊柱、骨盆、手和脚）的疾病。3D-CT可以清晰显示病变范围、形态、形状以及与相邻结构的关系。这种独特的空间信息可能对有关可切除性、手术入路和修复的决策产生重大影响。高质量3D重建的基本要求是患者无移动且横断面扫描层厚较窄。螺旋CT对满足这些要求有很大帮助。此外，螺旋CT扫描数据可用于生成第三维度的终极呈现：一个实物大小、可触摸的医学模型。在本综述中，我们描述了三维重建过程，并强调了3D成像处理过程中出现的潜在问题。还讨论了螺旋CT在骨骼病变3D可视化方面的有用临床应用。
