论著-头颈部
MRI各序列扫描肝细胞肝癌的图像特点及其与常规CT多期增强的比较*
作者:王 伟1 师 弘2
所属单位:1.空军军医大学(原第四军医大学)唐都医院感染病科(陕西 西安 710038) 2.空军军医大学(原第四军医大学)唐都医院肿瘤科(陕西 西安 710038)
PDF摘要
目的探究磁共振成像(MRI)各 序列扫描肝细胞肝癌(HCC)的图像特点及 其与常规CT多期增强的比较。方法 回顾 性分析我院收治的52例HCC患者的临床 资料,所有患者均行MRI 自旋回波序列 T1WI、T2WI、脂肪抑制序列(STIR)FS横断 位扫描及常规CT多期增强扫描,并经手术 或穿刺病理证实,分析MRI各序列扫描特 点,比较MRI与常规CT多期增强扫描对HCC 的诊断价值。结果 MRI T1WI序列主要表 现为稍低信号;T2WI、STIR序列以高信号 为主;MRI可较好显示HCC病灶情况,对病 灶诊断准确率为90.00%,多期增强CT对病 灶诊断准确率为86.67%,两者比较差异无 统计学意义(P>0.05)。结论 MRI可较好显 示HCC病灶情况,其对病灶的诊断准确率 与多期增强CT诊断价值相当,可应用于临 床为HCC的治疗提供参考。
Objective To investigate the imaging characteristics of magnetic resonance imaging (MRI) sequence scanning for hepatocellular carcinoma (HCC) and the comparison with conventional multi-phase contrast-enhanced CT scan. Methods The clinical data of 52 patients with HCC in the hospital were analyzed retrospectively. All patients underwent MRI spin echo sequences T1WI, T2WI and fat suppression sequence (STIR) FS transverse scan and conventional multi-phase enhanced CT scan. Besides, they were confirmed by surgery or biopsy. The characteristics of MRI scans were analyzed. The diagnostic value of MRI and conventional multi-phase enhanced CT scan for HCC was compared. Results The MRI T1WI sequence mainly showed slightly lower signal. T2WI and STIR sequences mainly showed high signals. MRI could well show lesions of HCC and the diagnostic accuracy was 90.00%, while the diagnostic accuracy of multiphase contrast-enhanced CT was 86.67% (P>0.05). Conclusion MRI can better show the lesions of HCC, and the diagnostic accuracy is similar to that of multi-phase contrastenhanced CT, and can provide references for clinical treatment of HCC.
【关键词】磁共振成像;肝细胞肝癌;自旋回波序列;脂肪抑制序列; CT多期增强
【中图分类号】R735.7
【文献标识码】A
【DOI】10.3969/j.issn.1672-5131.2018.12.027
前言
肝细胞肝癌(HCC)作为一类世界范围内高发的恶性肿瘤,其诊断及 鉴别一直广受国内外学者的关注,早期发现并准确定性病灶性质,确 定其范围及与周围组织的关系是HCC诊断及治疗的重要基础[1]。CT及磁 共振成像(MRI)检查是目前HCC诊断的最佳无创性检查方法,CT具有较 高的空间分辨率、可进行动态增强扫描,对HCC的诊断价值得到临床广 泛认可[2];近年来随着MR技术的进步,高场强磁体、相控阵线圈及肝 脏容积采集等的应用,使MRI诊断HCC的敏感度、特异度大大提升[3] ; 且MR扫描可通过多种序列及成像技术,一定程度弱化相应肝脏背景对 肿瘤成像的不良影响,提高肿瘤的检出率及诊断准确性[4]。本研究回 顾性分析了我院收治的52例HCC患者的临床资料,分析患者在不同MRI 序列扫描下的图像特点,并与常规CT多期增强检查对比,为临床HCC的 诊断提供参考依据。
中国CT和MRI杂志
第16卷, 第 12 期
2018年12月
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