微小肝癌的MRI表现及诊断

发布时间：2018-01-03 18:24

本文关键词：微小肝癌的MRI表现及诊断　出处：《临床放射学杂志》2017年11期 　论文类型：期刊论文

【摘要】：目的回顾分析微小肝癌的1.5/3.0 T MRI表现,初步提出微小肝癌MRI诊断条件,以提高对微小肝癌的认识和早期诊断率。方法搜集肝癌治疗后复发及慢性肝病背景定期复查发现、经病理及临床诊断的微小肝癌患者共100例(112个癌灶),分析比较其MRI平扫及动态增强各序列图像表现及复查变化。结果主要序列表现:DWI高信号病灶数所占比例为91%(106/112);T_2WI高信号占83%(93/112);动态增强"快进快出"病灶数占63.3%(76/112),"快进慢出"病灶数占36.7%(36/112)。所有病例2个月~2.5年内复查增大。结论高场MR可作为目前微小肝癌最好的检查方法,建议诊断必需条件:(1)慢性肝病背景;(2)DWI/T_2WI至少一个序列显示高信号;(3)动态增强呈快进快出或快进慢出;(4)一定时期复查病灶进行性增大。
[Abstract]:Objective To retrospectively analyze the 1.5/3.0 T MRI features of small hepatocellular carcinoma, of small hepatocellular carcinoma MRI in the diagnosis of small hepatocellular carcinoma in order to improve the conditions of understanding and early diagnosis rate. Methods liver cancer recurrence and chronic liver disease background regularly found by pathological and clinical diagnosis of small hepatocellular carcinoma in patients with a total of 100 cases (112 lesions) and enhance the performance and review the change of image sequence analysis and comparison of the MRI plain and dynamic. The main sequence: DWI high signal lesions accounted for 91% (106/112); T_2WI high signal in 83% (93/112); dynamic enhanced "Kuaijinkuaichu" accounted for 63.3% of the number of lesions (76/112), fast slow "accounted for 36.7% of the number of lesions (36/112). All the cases for 2 months ~2.5 years were increased. Conclusion MR can be used as the best small liver cancer screening method, proposed diagnostic necessary conditions: (1) the background of chronic liver disease; (2) DWI/T_2WI at least one sequence shows high Signal; (3) dynamic enhancement is fast forward or fast forward or fast forward slow out; (4) a certain period reexamination of the focus of progressive enlargement.

【作者单位】：解放军302医院放射科;
【分类号】：R445.2;R735.7
【正文快照】： 肝癌是我国常见的恶性肿瘤之一。微小肝癌指直径≤1.0 cm的肝癌,临床工作中常被误诊、漏诊;而在较大被发现时,回顾既往影像,一定时期内可以观察到其较小时的表现。目前针对微小肝癌的影像学研究相对较少;中高场MR有极佳的软组织分辨能力,在肝脏病变的诊断中显出了独到的优势和

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