超声造影诊断转移性肝癌

目的 探讨超声造影在转移性肝癌中的诊断价值.方法 对36例转移性肝癌患者首先行常规超声检查,然后采用低机械指数实时连续成像技术行超声造影检查,观察病灶大小、位置、数目、增强时相的表现,并进行统计分析.结果 常规超声检查发现病灶67个,超声造影后发现病灶106个.转移性肝癌的动脉相增强模式有四种类型:①37个病灶(37/106,34.91%)动脉相呈快速整体高增强,退出迅速,门脉相及延迟相呈低增强;②56个病灶(56/106,52.83%)动脉相周边呈环状快速高增强,推出迅速,延迟相呈低增强;③12个病灶(12/106,11.32%)动脉相、门脉相病灶均匀等增强,延迟期呈低增强;④1个病灶(1/106,0.94%)动脉相、门脉相、延迟相病灶均呈低增强.肿瘤的大小为决定其增强模式的重要因素.结论 超声造影增强模式及时间与转移灶的血供密切相关,在转移性肝癌诊断方面具有重要价值.

Contrast enhanced ultrasonographic diagnosis of liver metastases

Objective To assess the diagnostic value of contrast enhanced ultrasound (CEUS) in liver metastases. Methods Thirty-six patients were examined with conventional ultrasonography,then underwent continuous real-time CEUS with low mechanical index. The size,location,number and perfusion patterns of liver metastases were evaluated. Results In 36 patients,67 liver metastases were found with conventional ultrasound and 106 liver metastasis were found with CEUS. The perfusion patterns of lesions were in four types:...