目的:观察肝转移癌超声造影表现并探讨其临床应用价值。方法:对38例恶性肿瘤患者肝脏行常规超声检查及低机械指数超声造影检查,对肝内转移性病灶超声造影表现进行分析。结果:38例肝转移癌患者超声造影动脉相表现,55个(49.11%)病灶为周边环状增强型;41个(36.61%)病灶为整体增强型;11个(9.82%)病灶为不均匀增强型;5个(4.46%)病灶为相对无增强型。延迟相为112个(100.00%)病灶呈边界清晰的低回声,21例(55.26%)患者发现新病灶,其中直径<10mm的占51.11%。结论:肝转移癌超声造影有特征性表现,能够明显提高肝转移癌尤其直径<10mm的微小转移灶的检出率,可为临床筛查、诊断及鉴别诊断提供可靠依据。 Objective: To observe the performance of liver metastases by contrast-enhanced ultrasound and explore its clinical value. Methods: The liver of 38 patients with malignant tumors underwent routine ultrasonography and low contrast-enhanced contrast-enhanced ultrasound contrast-enhanced ultrasound contrast-enhanced ultrasonography. Results: The arterial phase of contrast-enhanced ultrasound in 38 patients with liver metastases showed that 55 lesions (49.11%) were circumferentially enhanced; 41 lesions (36.61%) were enhanced as a whole; 11 lesions (9.82%) were uneven Enhanced; 5 (4.46%) lesions were relatively non-enhanced. The delayed phase was 112 (100.00%) with clear border hypoechoic lesions, and 21 (55.26%) patients had new lesions, of which 51.11% had diameter <10 mm. Conclusion: CEUS has the characteristic features that can significantly improve the detection rate of micrometastases of liver metastasis, especially diameter <10mm, which can provide a reliable basis for clinical screening, diagnosis and differential diagnosis.