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| The value of 3.0T MRI in detecting new micro-hepatocellular carcinoma during follow-up examination |
| HUO Ying-jie, YUAN Jing, YANG Jing-zhen, WANG Cheng-jian, ZHANG Yu, ZHAO Yong-qiang |
| The Central Hospital of CNPC, Langfang Hebei 065000, China |
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Abstract Objective: To study the value of 3.0T MRI in finding new micro-hepatocellular carcinoma(MHCC) lesions during follow-up examination. Methods: Seventeen patients who were confirmed by pathology to be hepatocellular carcinoma and were follow-up by MRI for long term after treatment. All of these cases had conventional MRI, DWI and dynamic contrast enhance(DCE) MRI examination on a 3.0T MR system. Among them there were 23 newly found MHCC, these lesions were confirmed by clinical and short term follow-up. The MRI features of these lesions were studied retrospectively. Results: The 23 MHCC＜1.0 cm showed slightly high signal on T2WI, 23 and 19 lesions showed high signal on small and large b value DWI respectively, 21 lesions showed rich blood supply on DCE among these lesions, 16 lesions showed the characteristic “fast in and fast out” feature, 5 lesions showed “fast in and slow out” feature, lack of blood supply in 2 lesions which showed no enhancement on different phases of DCE, 10 nodules(≥0.7 cm) showed pseudocapsule enhancement on equilibrium phase. Conclusion: Combination of different sequences using 3.0T MR system has important clinical application value in detecting newly appeared MHCC.
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Received: 29 August 2013
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2014, Vol. 25 
