肝转移癌超声造影表现及临床应用价值的探讨

Diagnostic performance of contrast-enhanced ultrasound in liver metastases and its clinical application

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 with contrast-enhanced ultrasound （CEUS） and assess its clinical application. METHODS： A total of 38 patients with established primary malignancy were enrolled in this study. All the patients were examined by CEUS with low mechanical index. RESULTS： The characteristic appearances of contrast-enhanced ultrasonography of 38 patient with liver metastases（LM）, peripheral enhancement menifested in 55 focuses （49.11%）; entire enhancement menifested in 41 focuses （36.61%）; even enhancement menifested in 11 focuses （9.82%）; relative no enhancement menifested in 5 focuses （4.46%）. The Characteristic appearances of late phase： 112 focuses（100.00%）were clear border hypoechoic. New focuses were found in 21 patients（55.26%）, which diameter was smaller than 10 mm （51.11%）. CONCLUSION： CEUS can show the characteristic appearance of liver metastases, improve the detection rate of liver metastases with small metastatic focuses whose diameter is small than 10 mm, it can be used for diagnosis, screening and identification of liver cancers.