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微小肝细胞癌超声造影与DCE-MRI的对比研究

Oncoradiology(2022)

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Abstract
目的:比较≤1 cm肝细胞癌(hepatocellular carcinoma,HCC)的超声造影与动态对比增强磁共振成像(dynamic contrast-enhanced magnetic resonance imaging,DCE-MRI)各时相的表现.方法:分析比较53例经术后病理学检查证实的≤1 cm单发HCC病灶的超声造影图像及DCE-MRI的时相变化(动脉期、门脉期、延迟期).结果:在53例确诊单发的≤1 cm HCC病灶中,100.0%(53/53)病灶在超声造影以及DCE-MRI中均表现有不同程度增强.在门脉期,47.17%(25/53)病灶超声造影及DCE-MRI均表现为低回声,22.64%(12/53)均表现为高或等回声;在延迟期,62.26%(33/53)病灶超声造影及DCE-MRI均表现为低回声,7.55%(4/53)均表现为持续增强.对于≤1 cm HCC,超声造影及DCE-MRI在整个造影过程中减退表现完全一致的有54.72%(29/53).两种影像学方法对于≤1 cm HCC病灶动脉期增强、门脉延迟期减退的表现差异无统计学意义.结论:超声造影及DCE-MRI在诊断≤1 cm HCC时减退变化一致,两种方法均能反映≤1 cm HCC的血流动力学表现特点.
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