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目的:探讨16层螺旋CT图像后处理技术对青少年特发性脊柱侧凸的胸椎旋转和椎弓根径线变化特点及临床价值。方法:收集经临床诊治的青少年特发性脊柱侧凸20例,运用16层螺旋CT扫描及图像后处理技术,进行相关CT数据测量统计。结果:(1)脊柱胸椎侧凸的顶椎及邻近椎体均向凸侧旋转、后份向凹侧旋转,以顶椎旋转最重,且凹侧椎弓根径线小于凸侧,与侧凸程度及方向具有相关性。(2)上、下终椎椎体旋转及椎弓根径线变化则较复杂,其椎体无旋转或向相反方向旋转,椎弓根径线可凸侧小于凹侧,以上终椎明显。结论:16层螺旋CT及图像后处理技术,对显示青少年特发性脊柱侧凸胸椎旋转及椎弓根径线变化特征,可提供临床拟订手术方案的重要影像学依据。
Objective: To investigate the characteristics and clinical value of 16-slice spiral CT image postprocessing on the changes of thoracic rotation and pedicle diameter in adolescent idiopathic scoliosis. Methods: 20 cases of adolescent idiopathic scoliosis were collected and clinically treated. CT scans were performed with 16-slice spiral CT and post-processing techniques. Results: (1) The vertebral body and adjacent vertebral body of spine thoracic vertebrae both rotate toward the convex side, the posterior part rotate toward the concave side, the vertebral vertebra rotate the heaviest, and the concave side pedicle diameter smaller than the convex side, and the side The degree and direction of convexity are related. (2) The upper and lower vertebral body rotation and changes of pedicle diameter are more complex, the vertebral body without rotation or in the opposite direction of rotation, pedicle diameter line convex side is less than the concave side, the above is obvious. Conclusion: The 16-slice spiral CT and image postprocessing techniques can show the characteristics of the changes of thoracic rotation and pedicle diameter of adolescent idiopathic scoliosis, which can provide important imaging evidence for clinical planning of surgical procedures.