SWI与MRI增强扫描诊断小肝癌的对比性研究

Comparison of SWI and dynamic contrast-enhanced MRI imaging in the diagnosis of small hepatocellular carcinoma

目的对磁敏感加权成像(SWI)与MRI动态增强扫描诊断小肝癌进行对比性研究,探索SWI对小肝癌的临床应用价值。材料与方法采用双盲法,对60例临床诊断为小肝癌的患者同时进行SWI和MRI动态增强扫描并由3名高年资放射诊断医生进行独立诊断,并对诊断结果进行对比统计分析。结果 60例小肝癌中,应用SWI扫描48例阳性,12例阴性,MRI增强50例阳性,10例阴性。统计学分析结果显示,两种扫描方法诊断小肝癌差异并无统计学意义(P<0.05)。结论本研究发现MRI增强扫描诊断小肝癌是临床上常规应用且可靠性较高的诊断方法,SWI扫描可作为MRI增强扫描的补充序列。应用SWI对肝硬化结节信号改变进行动态追踪,对小肝癌的诊断有重要的临床价值,但诊断小肝癌MRI增强扫描仍然不可替代。

Objective: Comparison of susceptibility weighted imaging and dynamic contrast-enhanced MR imaging in the diagnosis of small hepatocellular carcinoma and to explore the clinical application value of SWI in small hepatocellular carcinoma. Materials and Methods: SWI and dynamic contrast-enhanced MR imaging were performed on 60 patients with small hepatocellular carcinoma, And an independent diagnosis was made by three high-year-funded diagnostic radiology doctors, and The results were compared and analyzed statistically. Double blind method was used in this study. Results: In 60 cases of small hepatocellular carcinoma, 48 cases were positive by SWI scan, 12 cases were negative, 50 cases were positive by MRI scan, 10 cases were negative. Statistical analysis showed that there was no significant difference between the two scanning methods in the diagnosis of small hepatocellular carcinoma(P<0.05). Conclusions: This study found that MRI enhanced scanning in the diagnosis of small hepatocellular carcinoma was a routine clinical application and high reliability of diagnostic methods, SWI scan could be used as a supplementary sequence of MRI enhanced scan. SWI was used to dynamically track the change of hepatic cirrhosis nodules, which has important clinical value in the early diagnosis of HCC. However, the MRI enhancement scan of small hepatocellular carcinoma could not be replaced.