Manco L G, Berlow M E
Department of Medical Imaging, Memorial Hospital, Albany, New York.
Crit Rev Diagn Imaging. 1989;29(2):151-79.
A total of 1750 knees were prospectively evaluated using a high-resolution noninvasive axial computed tomography (CT) scanning technique. A total of 203 knees underwent subsequent arthroscopic or arthrographic evaluation. In this group, the sensitivity of CT for the detection of a torn meniscus was 88.5%; the specificity was 95.5%; and the accuracy was 91.5%. An additional 270 knees were prospectively evaluated by both CT and magnetic resonance imaging (MRI) to determine the ability of both techniques to characterize knee menisci in patients believed to have meniscal tears. Of these knees, 94 were subsequently examined by arthroscopy. In this group, the overall accuracy of MRI for detecting a torn meniscus was 89.5% and for CT it was 92.2%. Properly performed, both CT and MRI are accurate and effective methods for noninvasively evaluating meniscal abnormalities in the acutely injured knee. The protocol for CT and MRI meniscus imaging as well as interpretation are presented in addition to their relative roles with respect to arthrography and arthroscopy.
采用高分辨率无创轴向计算机断层扫描（CT）技术对总共1750个膝关节进行了前瞻性评估。共有203个膝关节随后接受了关节镜或关节造影评估。在该组中，CT检测半月板撕裂的敏感性为88.5%；特异性为95.5%；准确性为91.5%。另外270个膝关节接受了CT和磁共振成像（MRI）的前瞻性评估，以确定这两种技术对疑似半月板撕裂患者膝关节半月板的特征描述能力。在这些膝关节中，94个随后接受了关节镜检查。在该组中，MRI检测半月板撕裂的总体准确性为89.5%，CT为92.2%。正确实施的话，CT和MRI都是无创评估急性损伤膝关节半月板异常的准确且有效的方法。除了CT和MRI半月板成像及解读的方案外，还介绍了它们相对于关节造影和关节镜检查的相对作用。
