64层容积CT冠状位重组图像在副鼻窦检查中的价值

Value of VCT coronal reconstruction in examination of paranasal sinuses

目的探讨64层螺旋CT(VCT)冠状位重组图像在副鼻窦检查中的价值。方法回顾性比较分析50例副鼻窦患者的轴位螺旋扫描冠状位重组图像和直接冠状位扫描图像。使用美国GE Lightspeed VCT机,先行轴位螺旋扫描,原始扫描层厚0.625 mm,Pitch值0.5,利用Reformat技术得到冠状位重组图像;再通过冠状位非螺旋扫描获取直接冠状位图像;最后将每位患者的两组不同冠状位图像进行比较,主要分析副鼻窦解剖、软组织及骨组织等的显示效果。结果轴位扫描重组冠状位图像在副鼻窦、软组织及骨组织的显示方面能满足临床诊断要求。结论VCT冠状位重组图像在副鼻窦检查中具有很高的应用价值。

Objective To study the value of 64-row-detectors helical CT （volumetric computed tomography, VCT） coronal reconstruction in examination of paranasal sinuses. Methods The reconstructed coronal images and directed coronal images of the paranasal sinuses were retrospectively analysed and compared in 50 patients using the GE Lightspeed VCT scanner. The raw data of spiral scan were thickness 0. 625mm and pitch 0.5. The effect of manifestation, such as anatomy, soft tissues , bone tissues and diseases of paranasal sinuses,were mainly analysed and compared. Results The clinical needs could be satisfied with the quality of reconstructed coronal images. Conclusion The reformatted coronal images of VCT have higher value in examination of paranasal sinuses.