多期动态增强MRI在肝脏良恶性病变鉴别诊断中的应用价值分析

Analysis the applied value of multi-phase dynamic enhanced MRI in differential diagnosis of benign and malignant liver lesions

目的探讨多期动态增强MRI在肝脏良恶性病变鉴别诊断中的应用价值。方法随机选取2015年3月~2016年9月我院收治的肝脏病变患者79例作为研究对象,均行MRI平扫和动态增强扫描。结合术后病理诊断,对良性和恶性病变影像学特点进行比较,并观察比较多期动态增强MRI扫描技术在肝脏良恶性病变中的诊断以及鉴别诊断价值。结果 79例肝脏病变患者检查中共发现105个病灶,病灶信号显示T2WI为高信号,T1WI为低信号。动态增强扫描后,在患者的病灶边缘处显示出结节状强化,信号自边缘处开始逐渐向病灶的中心处强化。MRI多期动态增强扫描对肝脏病变的诊断准确率为92.41%,诊断良性肝脏病变的敏感度为96.00%,特异度为86.21%。结论多期动态增强MRI扫描技术在肝脏良恶性病变鉴别诊断中具有较高的特异性、灵敏度和准确性,指导临床上治疗肝脏异常患者制定合理的治疗方案,值得在临床上广泛应用。

Objective To investigate the applied value of multi-phase dynamic enhanced MRI in differential diagnosis of benign and malignant liver lesions.Methods From March 2015 to September 2016,79 cases patients with liver le- sions in our hospital were randomly selected as the research objects,both MRI scan and dynamic contrast scan were performed.Combined with postoperative pathological diagnosis,the imaging features of benign and malignant lesions were compared,and the value of multi-phase dynamic enhanced MRI scan in the diagnosis and differential diagnosis of benign and malignant liver lesions was observed and compared.Results 105 lesions were detected in 79 patients with liver lesions.The signal of the lesions showed high signal of T2WI and low signal of T1WI.Dynamic enhanced scan showed nodular enhancement at the margin of the lesion.The signal began to strengthen at the margin and gradually strengthened at the center of the lesion.The diagnostic accuracy of MRI nmlti-phase dynamic enhanced scan in liver lesions was 92.41%,and the sensitivity of diagnosing benign liver lesions was 96.00% and specificity was 86.21%. Conclusion Multi-phase dynamic enhanced MRI scanning technique has higher in the differential diagnosis of benign and malignant liver lesions in the specificity,sensitivity and accuracy of treatment to guide the clinical treatment in pa- tients with abnormal liver to make reasonable,it is widely used in clinical practice.