肝脏局灶性炎性病变的灰阶超声及超声造影图像特征

CHARACTERISTICS OF LIVER FOCAL INFLAMMATORY LESIONS ON GRAY-SCAL ULTRASOUND AND CONTRAST-ENHANCED ULTRASOUND IMAGING

目的:探讨灰阶超声及超声造影在肝脏局灶性炎性病变临床诊断中的应用价值。方法:回顾性分析33例肝脏局灶性炎性病变的灰阶超声及超声造影的图像特征,其中16例与病理结果进行比较。结果:33个炎性病灶的灰阶超声表现:形态规则15个,不规则18个;边界清晰21个,不清晰12个;内部可见液化区5个,无明显液化区28个;有占位效应13个,无明显占位效应20个。超声造影特征表现:病灶动脉期呈周边环状增强25个;内部可见分隔增强16个;肝段增强14个。延迟期呈低增强15个,同时伴形态不规则11个、无占位效应10个。结论:结合超声造影与灰阶超声图像特征有助于提高肝脏局灶性炎性病变诊断的准确性。

Objective：To investigate the value of gray-scale ultrasound and the contrast-enhanced ultrasound （CEUS） in clinic diagnosis of liver focal inflammatory lesions. Methods： Retrospective analysis of gray- scale ultrasound and CEUS characteristics and comparison with pathology. Results： The characteristics of gray-scale ultrasound in 33 inflammatory lesions were regular and irregular in shape （15 vs. 18）, distin- guishable boundary and undistinguishable boundary （21 vs. 12）, mixed nodules and unmixed nodules （5 vs. 28）, space occupying effect and no space occupying effect （13 vs. 20） ; respectively. The characteristics of CEUS were rim enhancement in 25, enhanced septa in 16 and hyper-enhanced liver segment in 14; re- spectively. Fifteen lesions with hypo-enhancement during the late phase were followed by the characteris- tics of irregular shape in 11 and in 10. Conclusion： Combined gray-scale ultrasound and CEUS can improve the diagnostic accuracy of focal liver inflammatory lesions.