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目的 探讨经静脉超声造影对肝肿瘤彩色血流信号的增强作用及其在肿瘤的诊断和鉴别诊断中的应用价值。方法 经外周浅静脉注射声学造影剂后 ,观察 33例肝肿瘤 75个瘤结节造影前、后瘤结节内、外彩色血流增强情况。结果 1 6例原发性肝癌 2 5个瘤结节内及瘤周彩色血流明显增强 ;6例转移性肝癌 2 2个瘤结节内彩色血流无明显增强 ,但瘤周血流增强明显 ;1 1例肝血管瘤 2 8个瘤结节内彩色血流在造影即刻无明显增强 ,延迟显影则有明显增强 ,瘤周血流也增强明显。结论 经静脉超声造影在肝肿瘤的诊断、鉴别诊断及选择治疗措施等方面有重要的临床应用价值。
Objective To investigate the enhancement of color flow signals in liver tumors by contrast-enhanced ultrasound and its application in the diagnosis and differential diagnosis of tumors. Methods After the ultrasound contrast agent was injected into the peripheral vein, the color flow enhancement of the tumor before and after the tumor nodule was observed in 75 cases of liver tumor. RESULTS: The color flow in 25 cases of intratumoral tumors and tumors was significantly enhanced in 16 cases of hepatocellular carcinoma; color flow in 22 cases of metastatic hepatocellular carcinoma was not significantly enhanced, but the enhancement of blood flow around the tumor was obvious. The color flow in 28 tumor nodules in 1 case of hepatic hemangiomas showed no obvious enhancement at the time of angiography, significant enhancement after delayed imaging, and enhanced blood flow around the tumor. Conclusions Transvenous contrast-enhanced ultrasound has important clinical application value in the diagnosis, differential diagnosis and selective treatment of liver tumors.