超声造影技术在肝脏局灶性病变诊断中的应用

目的 探讨实时谐波超声造影在肝脏局灶性病变诊断中的应用价值.方法 采用实时谐波超声造影技术对31例肝脏局灶性病变进行检查,并比较不同病变的肝脏超声造影增强特点.结果 恶性病变患者增强开始时间、峰值时间、减退时间、持续时间均早于良性病变患者（P＜0.05）,良恶性患者动脉期、门脉期和延迟期病变增强方式也有所不同.结论 超声造影能反映组织血流动力学的改变,对肝脏良恶性病变的诊断及鉴别诊断具有重要的临床应用价值.

Application of contrast-enhanced ultrasonography in diagnosis of focal liver lesions

Objective To explore the clinical value of real - time harmonic gray - scale contrast enhanced sonography in diagnosis of focal liver lesions （FLLs）. Methods Thirty - one patients with FLLs were examined by contrast enhanced ultrasound（CEUS）. The contrast enhanced characteristics of FLLs were compared. Results The arrival time, peak time, wash - out time and enhancement time of the malignant lesions were significantly earlier than those of the benign lesions （ P 〈 0.05 ）. The enhancement pattern of benign and malignant FLLs in the arterial, portal and late phases was different. Conclusion CEUS could reflect the changes of hepatic haemodynamics, and it has important clinical application value in diagnosis and differential diagnosis of liver benign and malignant lesions.