低剂量数字减影血管造影技术三维重建在骨关节骨折中的应用价值

Application of low doses of digital subtraction angiography three-dimensional reconstruction in joint fracture of the trauma

目的比较分析X线、螺旋CT及低剂量数字减影血管造影技术三维重建在30例骨关节骨折中的应用，探讨低剂量数字减影血管造影技术三维重建在骨关节骨折中的应用价值。方法回顾性分析2010年2月-2011年3月广州开发区医院放射科收治经X线、螺旋CT和数字减影血管造影技术三维重建证实的30例骨关节骨折患者的病例资料，比较分析30例骨关节骨折的数字减影血管造影技术和三维重建表现及x线片表现。采用SPSS11．0统计软软件包。用Spearman相关性分析检验，对不同方法采用单因素方差分析及各指标问的独立样本t检验；对各种方法的准确率评估采用卡方精确检验，P〈0．05为差异有统计学意义。结果本组30例中显示骨折线，明确骨折线的走行，骨折片的数目，来源及分离移位情况，数字减影血管造影技术三维重建30例均能清晰显示；螺旋CT20例能清晰显示，10例不能清晰显示；X线平片10例能清晰显示，20例未见显示。螺旋CT关节囊和软组织显示清晰。结论低剂量数字减影血管造影技术三维重建比螺旋CT及X线平片更能清楚显示骨折，明确骨折线的走行和骨折片的数目、来源及分离移位情况，为治疗方案的选择和预后的估计提供帮助。

Objective To compare X-ray, spiral CT and low does digital subtr, action angiongraphy technology of three dimensional reconstruction in 30 cases of the applications in the joint fractures, to study the application value of the digital subtraction augiography three- dimensional reconstruction in joint fracture. Methods A retrospective analysis was made on 30 cases with joint fracture in Guangdong Provincial Guang- zhou Development District Hospital, who were confirmed by the X-ray and spiral CT three-dimensional re- construction and digital subtraction angiography three-dimensional reconstruction and the demonstrations three-dimensional reconstruction, spiral CT three-dimensional reconstruction and X-ray were compared. Results All 30 cases fractures showed clear line, line of walk line, of the number of fracture, source and separation shift condition. Digital subtraction angiography could be clearly shows 30 cases in spiral CT could clearly show in 20 cases, 10 cases not clearly show in, while X-ray clearly show in 10 cases, not show in 20 cases. Spiral CT showed clearly joint capsule and soft tissue. The SPSS 11.0 statistical soft package was used. Spearman correlation analysis, the single factor analysis of variance and the independent t test and the chi-square test were employed for data analysis, P 〈 0. 05 was considered statistical significance. Conclusions Digital subtraction angiography three-dimensional reconstruction can more clearly display fracture line, fracture pieces, walk line, source and separation shift condition compared with spiral CT and Xray essaminations, which is helpful for treatment options and prognosis estimation.