Buckwalter Kenneth A
Department of Radiology, Indiana University School of Medicine, University Hospital, Indianapolis, IN 46202, USA.
Sports Med Arthrosc Rev. 2009 Mar;17(1):13-20. doi: 10.1097/JSA.0b013e3181960a41.
Computed tomography (CT) is a widely used imaging technique. With the introduction of multidetector row technology, CT has been further refined. Although the focus of this transformation has been body and cardiac imaging, orthopedic imaging has benefited greatly. Specifically, the improvements in CT have made it possible to obtain submillimeter-thick slices that enable the creation of high-resolution multiplanar reformations from a single scan. These images usually are indistinguishable from direct plane acquisitions and provide unparalleled detail. Additionally, the factors responsible for causing CT image artifacts when hardware is present are much better understood and the improvements in CT technique and technology can be exploited to provide better images of patients with orthopedic hardware. The detailed multiplanar visualization of joints facilitates CT arthrography that has undergone a renaissance. CT arthrography is useful in the very large athlete or patient, the claustrophobic, and for those patients who fail a conventional magnetic resonance examination or magnetic resonance arthrogram.
计算机断层扫描（CT）是一种广泛应用的成像技术。随着多排探测器技术的引入，CT得到了进一步完善。尽管这种变革的重点一直是身体和心脏成像，但骨科成像也受益匪浅。具体而言，CT的改进使得获取亚毫米厚的切片成为可能，从而能够从单次扫描中创建高分辨率的多平面重建图像。这些图像通常与直接平面采集的图像难以区分，并提供了无与伦比的细节。此外，当存在硬件时导致CT图像伪影的因素已得到更好的理解，并且可以利用CT技术和工艺的改进为植入骨科硬件的患者提供更好的图像。关节的详细多平面可视化促进了CT关节造影术的复兴。CT关节造影术对非常高大的运动员或患者、幽闭恐惧症患者以及那些传统磁共振检查或磁共振关节造影失败的患者很有用。
