周围型肺肿瘤超声造影的初步应用研究

目的 探讨周围型肺肿瘤超声造影的可行性及特点.方法 经病理证实的20例周围型肺肿瘤患者,其中原发性肺癌15例,肺转移瘤5例,分析超声造影增强特征及时问强度曲线.结果 ①原发性肺癌开始增强时间及达峰值时间均早于肺转移瘤.②原发性肺癌开始以条状增强为主;肺转移瘤以点状增强为主.③肺转移瘤增强程度低于原发性肺癌.④达到增强峰值时,原发性肺癌与肺转移瘤增强的均匀性差异无统计学意义.⑤原发性肺癌时间一强度曲线均呈快升慢降型,肺转移瘤以慢升慢降型为主.⑥超声造影后病灶血流信号比增强前明显增多.结论 原发性肺肿瘤和肺转移瘤超声造影有不同的增强模式及时间-强度曲线,超声造影有助于周围型肺肿瘤的诊断和鉴别诊断.

Preliminary clinical study on contrast-enhanced ultrasound for the peripheral pulmonary tumors

Objective To study the feasibility and characteristic findings of contrast-enhancedultrasound(CEUS)on peripheral pulmonary tumors.Methods Twenty patients with peripheral pulmonarytumors proven by pathology were studied.They were divided into two groups:primary pulmonary tumors (n=15),and metastatic pulmonary tumors(n=5). The dynamic enhancement images were stored and Strip enhancement was dominant in the primary pulmonary tumors,while dot enhancement was dominant in ascended quickly and descended slowly,while ascended slowly and descended slowly in majority of metastaticThe modes of enhancement and time-intensity curves were all different in primary and metastatic pulmonary tumors.Contrast-enhanced uhrasound is promising in the diagnosis of peripheral pulmonary tumors.