【摘要】 目的:讨论3T超高场磁共振在小肝癌疾病诊断中的应用价值。方法:选取2007年10月至2012年6月我科收治的23例经过病理证实的小肝癌患者的磁共振影像资料进行回顾性诊断分析,记录平扫及增强、延迟扫描的影像特点。结果:小肝癌的MRI平扫表现形式多样,整体上T1WI以低信号为主,T2WI以高信号为主;增强检查,动脉期高信号为主,增强延迟以低信号为主。结论:超高场强磁共振动态增强检查能够对平扫T1WI和T2WI上呈现等密度图像进行鉴别诊断,同时动态增强检查在动脉期可观察到病灶的异常灌注,判断示门脉受累情况。更多还原

【Abstract】 Objective:To discuss the value of diagnosis of small hepatocellular carcinoma with 3T high-field MRI.Methods:Retrospective analysis was finished by selecting 23 cases of pathologically confirmed the MRI data of the patients with small hepatocellular carcinoma retrospective diagnostic analysis from October 2007.We recorded the characteristics of plain and enhanced,delayed scanned images.Results:The diverse manifestations of plain MRI of small hepatocellular carcinoma.Generally,the overall main low signal showed on T1WI,high signal showed on T2WI,enhanced MRI,arterial high signal-based,enhanced delayed is mainly low signal.Conclusion:The ultra-high dynamic enhanced MRI to the differential diagnosis of density on the unenhanced T1WI and T2WI showed images,dynamic contrast-enhanced to check the observed lesions in the arterial phase may be abnormal perfusion to determine the show portal involvement.更多还原