Application of X-ray digital tomosynthesis in knee joint trauma examination

Objective: To explore the clinical value of X-ray digital tomosynthesis(DTS)in the diagnosis of knee joint fractures. Methods: A total of 28 cases of thoracic trauma, X-ray film cannot be clearly diagnosed or can confirm the diagnosis but the need for further identification of forensic diagnosis of cases of DTS scan and three-dimensional reconstruction in order to control the study. Results: 1. The reconstructed images after DTS scanning showed that the knee joint fractures were clearly diagnosed, and the detection rate of 28 knee joint fractures was 92.86%. 2. DTS scanning could clearly detect the fresh knee joint fracture's fracture line, corresponding line and broken bones. For the old fracture, DTS scanning could clearly show the condition of the fracture end's healing. Conclusions: The technique is of great value in the diagnosis of knee joint fracture, especially in the examination of complex structure, thick body and review of internal fixation after fracture.

CT在诊断胸骨粉碎性骨折中应用

目的研究多层螺旋CT轴面与平面重组(MPR)表现在诊断胸骨粉碎性骨折中的应用。方法选取我院2011年3月至201 3年3月26例胸骨粉碎性骨折患者为研究对象,所有患者均经病理学诊断证实。26例患者均行16层螺旋CT胸部扫描,比较轴位图像与MPR图像上胸骨粉碎性骨折的检出率及合并其他胸部创伤的种类。结果MPR图像对胸骨粉碎性骨折检出率100%高于常规轴位CT84.62%,差异有统计学意义(P<0.05)。发现患者并发胸腔积液18例,胸骨后纵隔血肿10例,胸骨后纵隔气肿7例,肺挫伤15例,多发肋骨骨折16例。其中常规轴位CT检查出胸骨后纵隔血肿6例,漏诊4例;其余并发胸部创伤均检查出。MPR图像对胸骨粉碎性骨折患者胸部创伤的检出率均为100%。结论多层螺旋CT的MPR图像对胸骨粉碎性骨折的检出率较高,还可准确判断患者合并的胸部创伤,对患者选择适当的治疗方案及预后有重要意义。

胸骨骨折41例X线诊断

本文报告了41例胸骨折，男32例，女9例，多以直接暴力所致。X线接骨折形态分为横断骨折、斜形骨折、凹陷形骨折、撕脱形骨折。其中胸骨柄骨折8例，胸骨体部骨折24例，软骨连接部分离脱位9例。作者对骨折的机制、分型进行了分析探讨。

410例膝关节外伤MRI诊断分析

目的 探讨MRI对膝关节外伤的诊断价值.方法 回顾性分析410例膝关节外伤的MRI表现,其中72例行CT检查,380例同时拍摄X线平片,比较3种方法对膝关节外伤的诊断价值.结果 MRI、CT及X线对膝关节外伤的阳性检出率分别为99.02%(406/410)、70.83%(51/72)、30.00%(114/380).MRI表现分别为骨挫伤伴或不伴骨折、关节腔积液、半月板损伤、韧带损伤、关节周围软组织损伤.MRI阳性检出率明显高于CT组及X线组,组间比较差异有统计学意义(P<0.05).结论 MRI对膝关节外伤具有独特而重要的诊断价值,而且无创伤、无辐射,能够最大限度弥补X线及CT检查的不足,可作为膝关节外伤的常规检查手段.