螺旋CT仿真内镜在骨性椎管病变中的初步应用

目的：探讨螺旋CT仿真内镜（CTVE）成像在骨性椎管病变诊断中的价值。资料与方法：对30例正常人的骨性椎管（颈段椎管13例，胸段椎管7例，腰段椎管10例）和36例椎管疾病（椎体外伤性压缩骨折12例，病理性压缩骨折10例，椎体骨质增生10例，椎体滑脱4例）行螺旋CT扫描，对其横轴位原始图像（2D）和CTVE进行比较。其中8例与手术结果比较。结果：30例正常椎管和36例病变椎管均成功地进行了CTVE成像，CTVE成像相应地显示了2D原始图像所显示骨性椎管正常以及病理改变的内表面，以及手术所见。结论：螺旋CT的2D原始图像结合CTVE成像，能更全面、整体地显示骨性椎管的改变，为临床提供更加充实的信息。

Preliminary Evaluation of Helical CT Virtual Endoscopy in Diagnosing Lesions of Vertebral Column

Objective To evaluate helical CT virtual endoscopy (CTVE) in the diagnosis of the lesions of bony vertebral canal.Materials and Methods Helical CT scanning of the bony vertebral canal was performed in 30 normal individuals, including cervical (n=13), thoracic (n=7) and lumbar (n=10) column, and in 36 patients with diseased vertebral column, including compression fracture (n=12), pathologic compression fracture (n=10), hyperosteogeny (n=10) and olisthe (n=4) of vertebral body. A comparison between axial 2D images and CTVE was made. The findings were compared with surgical results in 8 cases.Results CTVE imaging were successfully completed in all normal and diseased cases. CTVE well displayed the normal structures and the inner surface of the lesions of the bony vertebral canal. CTVE findings were consistent with the surgical results.Conclusion A combination of 2D resource images with CTVE imaging provides more comprehensive and detailed information of bony vertebral canal, very useful for physician in clinical practice.