磁共振增强扫描在小肝癌中的诊断价值  

Diagnostic value of enhanced MR scanning for small hepatocellular carcinoma

作　　者：徐立峰[1] 付子文[1] 邓丽[1] 

机构地区：[1]重钢总医院放射科,重庆400081

出　　处：《中国医学装备》2013年第3期76-78,共3页China Medical Equipment

摘　　要：目的:讨论磁共振成像(MRI)增强扫描在小肝癌诊断中的价值。方法:回顾2007年1月至2012年4月间在我院行MRI平扫和增强扫描的24例患者的MRI图像,分析其影像特点。结果:MRI平扫确定29处病灶,增强检查确定35处病灶,2种检查方法相比差异显著,具有统计学意义(x2=0.014,P<0.05)。磁共振平扫T1WI多数呈等信号和(或)低信号,T2WI多数呈现不均匀高信号。增强扫描,21例患者动脉期明显强化,静脉期20例等信号和(或)低信号,平衡期21例等信号和(或)低信号,延迟期22例等信号和(或)低信号。结论:MRI平扫、动态三期扫描有效结合,优势互补,能更正确、客观地早期发现小肝癌,提高小肝癌诊断的准确率。Objective： To discuss the diagnostic value of enhanced MR scanning for small hepatocellular carcinoma. Methods： Retrospective diagnostic analysis was conducted in 24 patients with unenhanced MR enhanced MR images in our hospital. Results： 29 lesions were determined by unenhanced MR, and 35 lesions were determined by enhanced MR. Compared to the two methods（x2 =0.014, P=0.048）,a significant difference was found, and it was statistically significant（P0.05）,T1WI was mostly showed equal/low signal, while T2WI was mostly showed heterogeneous high signal in magnetic resonance scan. In enhanced scan, 21 patients weresignificantly enhanced in arterial phase, 20 patients were showed equal/low signal in venous phase, 21 patients were showed equal/low signal in equilibration and 22 patients were showed equal/low signal in delay period. Conclusion： Effective combination of MRI scan and dynamic three scanning can more accurately and objectively determine small hepatocellular carcinoma and improve the accuracy of diagnosis of small hepatocellular carcinoma.

关 键 词：小肝癌 磁共振 增强 病灶 

分 类 号：R445.2[医药卫生—影像医学与核医学]