应用16层螺旋CT三维重建图像诊断骨关节损伤  

Diagnosis of trauma of bones and joints with 16-slices spiral CT post-imaging processing

作　　者：隋林[1] 王宏远[1] 

机构地区：[1]哈尔滨医科大学附属肿瘤医院CT室,黑龙江哈尔滨150081

出　　处：《第四军医大学学报》2008年第16期1509-1511,共3页Journal of the Fourth Military Medical University

摘　　要：目的:评价16层螺旋CT三维重建图像在骨关节损伤中的诊断价值.方法:对36例骨关节损伤患者行16层螺旋CT扫描后,在工作站进行多平面重建(MPR)和表面遮盖显示(SSD),分析两种方法对骨关节损伤的显示,并与X线平片比较.结果:X线平片、16层螺旋CT扫描、MPR和SSD图像对骨关节损伤的检出率依次为67.4%,80.4%,95.6%和91.3%,差异具有显著性(P<0.01).MPR未显示的踝关节骨折1处和腕关节脱位1处在SSD中均获确诊,MPR显示颅骨骨折1处、骨盆骨折2处、脊柱骨折1处均在在SSD中漏诊,MPR和SSD联合应用对骨折的检出率为100%.MPR图像可清晰显示骨表面和内部的骨折线,骨折的移位情况和关节内部细节等,SSD能够从外部显示骨折线的形态、长短、走向,骨表面碎骨片的形态大小、骨折的移位等.结论:16层螺旋CT结合不同的图像重建技术可提高骨关节损伤诊断的准确性,为临床制订治疗方案提供科学依据.AMI： To evaluate the diagnostic value of 16-slices spiral CT on trauma of bones and joints. METHODS： Thirty-six patients with fracture or dislocation were given 16-slices spiral CT. The data were reconstructed in ways of multiple planar reconstruction （ MPR ） and surface shaded display （ SSD ）, and were compared with that of X-ray examination. RESULTS： The detection rates of fracture or dislocation were 67. 39% in X-ray, 80.43% in 16-slices spiral CT, 95.65% in MPR and 91.3% in SSD, with significant difference between different methods （ P 〈 0.01 ）. One fracture in anklejoint and one dislocation in artieulatit carpi didn＇t present in MPR but presented in SSD, while one skull fracture, two pelvic and one spine fractures didn＇t present in SSD but presented in MPR. The detection rate in combination of MPR and SSD was 100%. Additionally, the surface and internal fracture lines, the shifing information of fractures and the internal details could be best viewed by MPR, and the form, length and location of fracture lines, and the form and size of detached bone fragments were displayed by SSD. CONCLUSION： The original images from 16-slices spiral CT should be processed by different methods, which can increase the diagnostic accuracy. Combination of different process methods can provide more evidences for clinical treatment.

关 键 词：体层摄影术 X线计算机 关节 创伤和损伤 成像 三维 

分 类 号：R684.7[医药卫生—骨科学]