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首页> 外文期刊>European Journal of Radiology >Evaluation of pathological features of hepatocellular carcinoma by contrast-enhanced ultrasonography: comparison with pathology on resected specimen.
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Evaluation of pathological features of hepatocellular carcinoma by contrast-enhanced ultrasonography: comparison with pathology on resected specimen.

机译：超声造影评估肝细胞癌的病理特征：与切除标本的病理比较。

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Features of hepatocellular carcinoma (HCC) observed by contrast-enhanced ultrasonography (CEUS) were compared to pathological features of corresponding resected HCC specimens, to evaluate the ability of CEUS to depict the pathological features of HCC. We investigated 50 HCC nodules that were treated by surgical resection. All nodules had been examined by CEUS with intravenous contrast agent (Levovist) before surgery. CEUS findings were divided into three phases for evaluation and classification of enhancement patterns: two vascular phases (arterial phase and portal venous phase) and the delayed phase. Pathological examination focused on differentiation and on the presence or absence of a tumor capsule, intratumoral septum, and intratumoral necrosis. All 21 nodules that showed a linear or annular vessel around the tumor margin in the arterial phase had capsular formation. Of the 27 nodules that showed heterogeneous perfusion in the portal venous phase, 21 (77.8%) had an intratumoral septum and 23 (85.2%) showed intratumoral necrosis. All nodules that were depicted as a defect with an unclear margin in the delayed phase were well-differentiated HCCs, whereas all nodules that were depicted as a defect with a clear margin were moderately or poorly differentiated HCCs. From our observations, the arterial, portal venous, and delayed phases of CEUS could reflect different pathological aspects of HCC. Some pathological characteristics of HCC might be evaluated preoperatively and non-invasively, by means of combined analysis of three phases of CEUS findings.
机译：通过对比超声（CEUS）观察到的肝细胞癌（HCC）的特征与相应切除的HCC标本的病理特征进行比较，以评估CEUS描绘HCC病理特征的能力。我们调查了50例经手术切除的HCC结节。在手术前，CEUS用静脉造影剂（Levovist）检查了所有结节。 CEUS的发现分为三个阶段，以评估和分类增强模式：两个血管阶段（动脉阶段和门静脉阶段）和延迟阶段。病理检查的重点是分化以及肿瘤包膜，肿瘤内隔膜和肿瘤内坏死的存在与否。在动脉期肿瘤边缘周围呈线性或环形血管的所有21个结节均具有包膜形成。在门静脉期灌注不均的27个结节中，有21个（77.8％）有瘤内间隔，而23个（85.2％）有瘤内坏死。在延迟期中被描述为边缘不清楚的缺损的所有结节均是分化良好的肝癌，而在边缘阶段中被描述为具有清晰边缘的缺损的所有结节均是中等或低分化的肝癌。根据我们的观察，CEUS的动脉，门静脉和延迟期可能反映出肝癌的不同病理方面。肝癌的某些病理学特征可通过对CEUS研究结果的三个阶段进行综合分析，在术前和非侵入性评估。

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