多层螺旋CT与MRI扩散加权成像诊断四肢软组织肿瘤的价值比较

发布时间：2018-01-18 03:21

本文关键词：多层螺旋CT与MRI扩散加权成像诊断四肢软组织肿瘤的价值比较　出处：《临床医学研究与实践》2016年22期 　论文类型：期刊论文

【摘要】：目的探讨比较多层螺旋CT与MRI扩散加权成像诊断四肢软组织肿瘤的价值。方法回顾性分析近4年经手术病理证实的30例四肢软组织肿瘤患者的临床资料,同期均接受多层螺旋CT检查与MRI扩散加权成像诊断。结果 CT检查四肢软组织肿瘤符合病理13例,正确率为43.33%,MRI检查四肢软组织肿瘤符合病理25例,正确率为83.33%,两者具有显著差异(P0.01)。软组织肿瘤的CT影像学表现为低密度肿块,并以囊肿与脂肪瘤为特征性表现;软组织肿瘤的MRI影像学中可见T1WI、T2WI表现会因肿瘤类型的不同而显出较大的差异,肌肉组织与良性肿瘤的ADC值明显大于恶性肿瘤(P0.05)。结论MRI扩散加权成像诊断四肢软组织肿瘤对病灶的良恶性鉴别度高,诊断正确率高,而CT虽可清楚显示病灶并判断其与周围组织间的关系,但准确定性较差,MRI扩散加权成像更具诊断价值。
[Abstract]:Objective to evaluate the value of multislice spiral CT and MRI diffusion-weighted imaging in the diagnosis of soft tissue tumors in extremities. Methods the clinical data of 30 cases of soft tissue tumors of extremities proved by surgery and pathology in recent 4 years were retrospectively analyzed. . Multislice spiral CT and MRI diffusion-weighted imaging were performed in the same period. Results CT examination of soft tissue tumors in extremities was consistent with pathology in 13 cases, and the correct rate was 43.33%. MRI examination of soft tissue tumors in extremities accorded with pathology in 25 cases, the correct rate was 83.33. There was a significant difference between the two groups (P 0.01). Ct findings of soft tissue tumors were low density masses. The cysts and lipomas were the characteristic features. In MRI imaging of soft tissue tumors, T1WIMr T2WI may show great difference with different types of tumors. The ADC value of muscle tissue and benign tumor was significantly higher than that of malignant tumor (P 0.05). Conclusion MRI diffusion-weighted imaging has a high degree of differentiating benign and malignant lesions from soft tissue tumors in extremities, and the diagnostic accuracy is high. Although CT can clearly show the lesions and judge the relationship between them and the surrounding tissues, the diffusion-weighted imaging with poor qualitative accuracy is more valuable in the diagnosis.
【作者单位】：陕西省府谷县人民医院;
【分类号】：R445.2;R738.6;R730.44
【正文快照】： 软组织肿瘤多发于人的四肢与躯干,常为良性,一般呈无痛性肿块或钝痛,如若肿瘤累及邻近神经,就会产生明显的疼痛。与其它肿瘤相比,软组织肿瘤缺乏明显的临床症状,所以很容易出现鉴别、定性的失误,漏诊、误诊率高[1]。扩散加权成像是一种能够从分子水平来表现组织结构特征的无创

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