Geijer Mats, El-Khoury Georges Y
Department of Radiology, University of Iowa Hospitals & Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA.
Emerg Radiol. 2007 Oct;14(5):271-87. doi: 10.1007/s10140-007-0638-5. Epub 2007 Jun 23.
Acetabular fractures are often complex injuries and the result of high-energy trauma with associated injuries. Understanding and classification of these rare injuries using radiography can be difficult and are much facilitated by the addition of computed tomography (CT). The purpose of this paper is to briefly review some of the underlying physical principles and technical factors for multidetector CT (MDCT) and to describe its use and imaging findings in the evaluation of acetabular fractures. Using MDCT with two-dimensional multiplanar reformatted (MPR) images and three-dimensional volume rendered images, the supplemental oblique radiographic Judet views can be omitted. MDCT is now an indispensable tool in preoperative imaging of acetabular fractures and also in postoperative imaging in complicated cases. Not only is MDCT excellent for a general overview but also for detailed imaging of fracture extent, joint congruency, step-offs or gaps in the joint surface, and entrapped osteochondral fragments.
髋臼骨折通常是复杂的损伤，是高能创伤及相关损伤的结果。通过X线摄影对这些罕见损伤进行理解和分类可能很困难，而计算机断层扫描（CT）的加入则极大地促进了这一过程。本文的目的是简要回顾多排螺旋CT（MDCT）的一些基本物理原理和技术因素，并描述其在髋臼骨折评估中的应用及影像学表现。使用具有二维多平面重组（MPR）图像和三维容积再现图像的MDCT，可以省略补充的斜位X线Judet视图。MDCT现在是髋臼骨折术前成像以及复杂病例术后成像中不可或缺的工具。MDCT不仅非常适合进行整体观察，还能对骨折范围、关节一致性、关节面的台阶或间隙以及嵌入的骨软骨碎片进行详细成像。
