目的：通过与增强CT对比，探讨超声造影在肝门部胆管癌（HCCA）诊断和分型中的临床价值。方法39例经病理证实的HCCA患者，对比超声造影和增强CT对其诊断准确性以及其分型诊断准确性。结果 HCCA超声造影表现为“快进快出”的特征：动脉相高增强占79％，门脉相低增强占82％，延迟相均为低增强。超声造影诊断HCCA的准确率为100％，增强CT为97．4％；超声造影分型准确率为92．3％，增强CT为87．2％；两种方法差异均无统计学意义。结论超声造影和增强CT在HCCA的显示和分型方面有很好的一致性，超声造影可作为其术前评估的重要影像学方法。%Objective To investigate the value of contrast-enhanced ultrasound(CEUS)in diagnosing and typing hilar cholangiocarcinoma as compared with contrast-enhanced computed tomography (CECT). Methods Thirty-nine patients with hilar cholangiocarcinoma confirmed by pathology were included in this study. The diagnostic and typing accuracy of CEUS and CECT were compared. Results Hilar cholangiocarcinoma lesions presented with fast enhancement and then a quick wash-out in CEUS:of CEUS,hyper-enhancement of lesions accounted for 79%in arterial phase,hypo-enhancement of lesions accounted for 82%in portal venous phase. All of the lesions showed hypo-enhancement in delayed phase. The diagnostic and typing accuracy of CEUS and CECT were 100%,92.3% and 97.4%,87.2%,respectively. No significant differences were found between them. Conclusion CEUS and CECT have good consistency in diagnosing and typing hilar cholangiocarcinoma and CEUS can be an important imaging method for its preoperative assessment.
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