摘要
目的评价多层螺旋CT的在寰枢椎病变中的应用价值。方法63例寰枢椎病变患者常规接受16层螺旋CT扫描,比较横断面以及M PR、SSD、M IP、VR重建等4种三维技术对病变的显示能力。结果寰枢椎旋转脱位6例,显示最佳的是VR及SSD;寰枢椎发育畸形、前倾和后仰脱位共17例,显示最佳的是M PR;寰枢椎骨折11例,显示最佳的是M PR;寰枢椎骨质破坏4例,显示最佳的是横断扫描与M PR;寰枢椎术后25例,显示最佳的是VR和M PR。结论对于寰枢椎病变来说,应该结合横断面和三维重建图像共同评价。三维重建中,M PR应用范围最广,显示效果也最好,但其它方式对于不同的病变也各有优势。
Objective To evaluate the clinical usefulness of multl-sllce spiral CT in diagnosis of atlantoaxial diseases. Methods 16 multl-sllce spiral CT scan was performed on 63 cases of various atlantoaxial abnormalities. The ability of axial images, multipl-anar reconstruction （MPR）, surface shaded display（SSD）, maximum intensity projection （MIP）, and volume rendering （VR）reconstruction for revealing these diseases was compared. Results Among the 63 cases, 6 cases of atlantoaxial rotatory displacement were most intuitively displayed by VR and SSD; 17 cases of atlantoaxial dislocation or malformation were most satisfactorily shown by MPR; 11 cases of atlantoaxial fracture were most clearly displayed by MPR too; four cases of bone destruction were most clearly displayed by routine axial images and MPR; 25 post-operatlon cases were most satisfactorily shown by VR and MPR. Conclusion Atlantoaxial diseases should be evaluated in combination with routine axial slices and different types of three-dimensional construction. Though MPR is the most efficient one of those four three-dimensional construction techniques, others have their own respective advantages.
出处
《西部医学》
2006年第2期223-225,共3页
Medical Journal of West China
关键词
计算机体层摄影
图像处理
重建
Computed tomography
Image processing
Reconstruction
