| 俞顺.MR三维容积多期增强对乏脂型肝EAML的诊断价值[J].中国医学影像技术,2020,36(2): |
| MR三维容积多期增强对乏脂型肝EAML的诊断价值 |
| Diagnostic value of MR 3D volume multi-phase enhancement for hepatic EAML with minimal fat |
| 投稿时间：2019-06-05 修订日期：2020-02-17 |
| DOI： |
| 中文关键词: 三维容积内插屏气检查序列 乏脂肪肝上皮样血管平滑肌脂肪瘤 磁共振成像 |
| 英文关键词:3D volumetric interpolated breath-hold examination sequence Hepatic epithelioid angiomyolipoma with minimal fat Magnetic resonance imaging |
| 基金项目:福建省自然科学基金科技项目，中华国际医学交流基金会SKY影像科研基金发展项目 |
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| 中文摘要: |
| 目的：探讨MR三维容积多期增强显示病灶供血动脉和早期引流静脉及中心血管对乏脂型肝EAML的诊断价值。方法：回顾性分析22例经病理及免疫组织化学证实的肝EAML患者资料及MRI影像特点，重点观察MR三维容积多期增强检查显示的病灶供血动脉、引流静脉及中心血管。结果：22例肝EAML中，17例病灶同时见供血动脉及引流静脉，2例仅见供血动脉，1例仅见引流静脉，2例未见供血动脉或引流静脉。供血动脉发自肝动脉分支9例、门脉分支7例、肝动脉及门脉分支3例，引流静脉多于动脉期提早显影，汇入下腔静脉9例、肝静脉9例；10例于动脉期见病灶内部及周边的扭曲血管，8例见假包膜征；15例不含脂肪，7例含少量脂肪，6例病灶合并出血、坏死。4例行肝细胞特异性造影剂增强检查的病灶在肝胆期均呈低信号。结论：MR三维容积多期增强检查益于显示肝EAML病灶的供血动脉、引流静脉及中心血管，对乏脂型肝EAML有较高的诊断价值。 |
| 英文摘要: |
| Objective: To investigate the diagnostic value of hepatic epithelioid angiomyolipomas(EAML) with minimal fat by using MR 3D volume multi-phase enhancement reveals lesions’ feeding arteries, early draining veins and central vessels.
Methods: This study retrospectively analyses the clinical data and MRI features in 22 cases of hepatic EAML patients confirmed by pathology and immunohistochemistry. The feeding arteries, early draining veins and central vessels revealed by MR 3D volume multi-phase enhancement were observed particularly.
Results: Among the 22 hepatic EAML patients, 17 cases observed feeding arteries and draining veins at the same time, 2 cases only saw feeding arteries, 1 case merely viewed draining veins, 2 cases can’t see feeding arteries and draining veins. There were 9 lesions’ feeding arteries originated from the hepatic artery branch, 7 lesions originated from portal vein branch, 3 lesions originated from both hepatic artery branch and portal vein branch. Most draining veins were developed in advance during arterial phase, 9 cases of draining veins transferred into inferior vena cava, and 9 cases were merged into the hepatic vein. In the arterial phase, the distorted blood vessels inside and around the lesion can be observed, the pseudocapsule sign was seen in 8 cases. 15 cases were free of fat, 7 cases contained a small amount of fat, and 6 cases with hemorrhage and necrosis. 4 lesions underwent the liver-specific contrast agent enhancement showed hypointensity in the hepatobiliary phase.
Conclusion: MR 3D volume multi-phase enhancement examination is beneficial to reveal the feeding arteries, draining veins and central venules in hepatic EAML lesions. It has a high diagnostic value for hepatic EAML with minimal fat. |
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