| 陈重,邓旦,廖明松,赖小今,吴晓波,陶杰,梁燕,常明,赵恒.超声造影诊断转移性肝癌[J].中国医学影像技术,2010,26(4):718~720 |
| 超声造影诊断转移性肝癌 |
| Contrast enhanced ultrasonographic diagnosis of liver metastases |
| 投稿时间：2009-10-14 修订日期：2009-11-10 |
| DOI： |
| 中文关键词: 超声检查,介入性 肝肿瘤 肿瘤转移 诊断显像 |
| 英文关键词:Ultrasonography, interventional Liver neoplasms Neoplasm metastasis Diagnostic imaging |
| 基金项目: |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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: ①Thirty-seven lesions (34.91%) showed as total enhancement during the early arterial phase and hypoechoic appearance during the portal venous phase and the late phase; ②Fifty-six lesions (52.83%) showed a peripheral rim-like hyperechonic enhancement during the arterial phase and fast wash-out in the portal phase; ③Twelve lesions (11.32%) showed as isoechoic enhancement during the arterial phase and the portal phase and was hypoechoic in the late phase; ④One lesion (0.94%) showed hypoechoic appearance during all phases. The dimension of the lesions played an important role in the perfusion patterns. Conclusion The enhancement pattern and time of lesions are closely correlated with the tumor arterial supply. CEUS has high value in diagnosing liver metastases. |
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