摘要
目的对比PWI和DSA在原发性肝癌TACE术后发现肿瘤残瘤中的价值.方法31例TACE术后行MRI复查的患者分别行MRI平扫、增强、灌注成像及DSA检查,然后将灌注成像与DSA图像对照,判断PWI对肿瘤残瘤的敏感性、特异性及准确性.结果以DSA为标准,PWI判断病灶残存的敏感性为95.2%,特异性为100%,准确性为96.9%,与DSA相比无明显统计学差异.结论PWI与DSA相比对发现肿瘤残存无明显差异,PWI除了观察常规图像外,还通过绘制时间信号曲线、测量灌注值,对肿瘤内各区域的血供进行定量分析,增加了评价的准确性和客观性.
Objective To compare the value of PWI and DSA in primary hepatic carcinoma after TACE. Methods 31 cases were reexamined MRI after TACE, and were performed with MRI routine plain scan, enhancement, PWI and DSA, the sensitivity, specificity, accuracy rate of residual area was through comparing PWI and DSA imagings. Results The sensitivity, specificity, accuracy rate of residual area for PWI were 95.2% , 100%, and 96.9% respectively. There was no statistical difference between PWI and DSA. Conclusion Compared with DSA, PWI not only can observe imaging , but also can provide perfution quantity, provide time-signal curve, improve the accuracy and objectivity of evaluating lesion.
出处
《昆明医学院学报》
2009年第10期50-53,共4页
Journal of Kunming Medical College
基金
云南省教育厅科学研究基金资助项目(07Z10275)
