Philips DR全脊柱立位摄影技术的探讨  

The skills of erect full-spine radiograph with Philips DR

作　　者：杨广奇[1] 杨旭峰[1] 吴腾芳[1] 温醒伟[1] 

机构地区：[1]中山大学附属第一医院放射科,广州510080

出　　处：《影像诊断与介入放射学》2009年第6期316-318,共3页Diagnostic Imaging & Interventional Radiology

摘　　要：目的探讨Philips DR实现立位前后位全脊柱拼图摄影的方法和技巧。方法设计令患者舒适不易移动的摄影体位,并总结适当的曝光条件,使用3种方法,对图像进行拼接,用photoshop软件对图像进行位移评价,根据人体解剖影像特征判断拼接成功与否。结果 98个病例中,78例自动拼接成功,其余用手动拼接校正,达到诊断要求;96例能够清晰显示椎体、棘突、椎弓根;除2例无法测量外,83例拼接处的椎体偏移控制在1mm内,11例在2mm内,2例在3mm内。结论 DR全脊柱摄影是临床诊断脊柱侧凸的重要影像学资料,合理的体位设计、适当的图像编辑和恰当运用拼图方法可以获得更高质量、更可靠的全脊柱影像。Objective To investigate the image stitching methods and skills of erect full-spine P-A radiograph with Philips DR. Methods Proper spinal projecting position and exposure factors were selected to get the radiogragh of full-spine. Three methods were used to stitch images. The image deviation was evaluated with photoshop to judge the quality of the stitching full-spine images. Results Among ninety-eight patients, the full-spine images were stitched successfully by automatic method in 78 patients. Other stiching images were justified with manual stitching method and were good enough for diagnosis. The border of vertebral body, pedicle of vertebral arch and spinous process were revealed clearly in 96 patients. The shift of vertebral body at stitching point was within 1 mm in 83 patients, 2mm in 11 patients, 3mm in 2 patients. Conclusion Full spine radiography with DDR can provide clinical diagnosis information with reliable images. High quality and reliable full-spine images can be got with proper spinal projecting position, appropriate image postprocess software and suitable stitching method.

关 键 词：全脊柱 图像拼接 DR 

分 类 号：R310[医药卫生—基础医学] TP391.41[自动化与计算机技术—计算机应用技术]