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目的探讨多层螺旋计算机断层扫描(CT)后容积重建(VR)技术和表面遮盖显示(SSD)技术在肋骨转移瘤诊断中的临床应用价值。方法选取秦皇岛市第四医院2013年1月至2014年9月间收治的经手术及病理证实的75例肋骨转移瘤患者,所有患者均有多层螺旋CT检查资料,采集CT图像后分别采用VR及SSD技术进行图像处理,观察两种处理技术对肋骨转移瘤的诊断准确率。结果 75例肋骨转移瘤患者确诊发生成骨转移病灶148个、溶骨性转移病灶35个、混合型骨折病灶110个、病理骨折病灶27个、膨胀性生长病灶60个,VR诊断的准确率分别为99.3%、97.1%、98.2%、70.4%和98.3%,SSD诊断准确率分别为37.8%、74.3%、74.5%、96.3%和95.0%,两种技术对成骨转移病灶、溶骨性转移病灶、混合型骨折病灶、病理骨折病灶诊断的准确率间差异均有统计学意义(均P<0.05)。结论多层螺旋CT后VR技术在发现成骨转移病灶、溶骨性转移病灶、混合型骨折病灶方面具有显著优势,应作为首选的后处理技术,而SSD技术在诊断病理骨折病灶时具有一定的优势,可根据患者情况选择应用。
Objective To investigate the clinical value of multi-slice computed tomography (CT) volume reconstruction (VR) and surface occlusion display (SSD) in the diagnosis of rib metastases. Methods Seventy-five patients with rib metastases confirmed by surgery and pathology from January 2013 to September 2014 in the Fourth Hospital of Qinhuangdao City were selected. All the patients had multi-slice spiral CT examination data. CT images were collected and analyzed by VR And SSD technology for image processing, to observe the accuracy of diagnosis of ribs metastases by two processing techniques. Results In the 75 cases of rib metastases, 148 osteosynthesis and metastasis lesions, 35 osteolytic metastasis lesions, 110 mixed fracture lesions, 27 pathological fracture lesions and 60 swollen growth lesions were diagnosed. The diagnostic accuracy of SSD was 37.8%, 74.3%, 74.5%, 96.3% and 95.0% for 99.3%, 97.1%, 98.2%, 70.4% and 98.3% There were significant differences in the diagnostic accuracy of lesions, mixed fracture lesions and pathological lesions (all P <0.05). Conclusion VR after multi-slice spiral CT has obvious advantages in finding osteo-metastatic lesions, osteolytic metastasis and mixed-type fractures, and should be the first choice of post-treatment technique. However, SSD technique has a certain value in the diagnosis of pathological fracture Advantages can be selected according to the patient application.