拼接软件在负重位全下肢及全脊柱中的应用

Application of Image Splicing Software for Whole Low Extremities and Total Spine Radiography at Weight Bearing Position

目的:探讨拼接软件在负重位全下肢及全脊柱摄影中的应用。方法:利用日本岛津公司的D-Vison Plus设备系统和具有拼接功能的后处理工作站(E-PACS 2000),60例患者在负重立位下分次进行全下肢正位(双侧髋关节至踝关节,30例)和全脊柱(C3至S1,30例)摄影,然后进行图像拼接和影像质量对比评价。结果:60例全下肢和全脊柱影像全部成功拼接,拼接前后甲片率差异无统计学差异(P=0.51>0.05)。拼接后的影像诸骨结构、下肢力线以及脊柱侧弯的cobb角测量点均能清晰显示,密度也基本一致。结论:应用拼接软件对负重位下分段拍摄及全下肢和全脊柱影像进行后处理,使全下肢和全脊柱能同时在一张照片上完整无缝地呈现,更有利于外科医生对脊柱和下肢的整体观察与计算测量,有利于手术方式的选择和疗效的判断。

Objective To discuss the application of image splicing software to the photography of the whole low extremities and total spine at weight bearing position. Methods With Shimadzu Corporation D-Vision Plus system and a post-processing workstation with full-splicing function, 30 cases went through radiology examination of whole low extremities, and another 30 ones through total spine radiology, then image splicing and quality comparison were performed. Results Sixty cases of whole low extremities and total spine radiographs were completely mosaiced, and there were no statistically significant differences between the rates of first-class radiograph（P=0.51〉0.05）. The radiographs before and after splicing were very clear to show all the bones, the lower limb alignment, and the cobb angle in scoliosis. Also the densities of radiograph were uniform on the whole.Conclusion The splicing software can be used in the post processing of the photographs of the whole low extremities and total spine at weight bearing position, which can make the whole low extremities and total spine seamlessly presented on one radiograph. It helps surgeons to observe, calculate and measure the photography accurately, and thus is useful to choose the operation mode and judge the curative effect.