摘要
目的探讨弥漫性肝动脉-门静脉瘘的声像图特点和超声诊断价值。方法分析6例弥漫性肝动脉-门静脉瘘患者超声检查结果,并与血管造影结果对照,总结二维及多普勒超声特征。结果弥漫性肝动脉-门静脉瘘的特征性超声表现为:彩色多普勒见门静脉系统血流与伴行的肝动脉方向相反,有搏动,肝动脉血流较门静脉血流显示清晰;频谱多普勒显示门静脉血流反向,频谱为动脉型。以上改变广泛存在于肝脏各叶。肝脏二维声像图表现无特征性改变。结论超声检查是首选的弥漫性肝动脉-门静脉瘘影像学筛查及诊断方法。
Objective To evaluate the sonographic diagnosis of diffus hepatoportal arteriovenous fistulas （HPAVF）. Methods The sonographic findings of 6 patients with diffus HPAVF were analyzed and compared with digital subtraction angiography （DSA）. Results Pulsatile hepatofugal Doppler signals in the portal vein and its major branches were demon- strated in both color and spectrum Doppler. Hepatic artery and its branches enlarged with strong pulsation and increased velocity. No liver parenchymal changes were observed in grey scale uitrasonography. Multiple and diffuse arterioportal shuntings were demonstrated by andiography. Conclusion Ultrasonography is the firstline imaging modality in the diagnosis of diffus HPAVF. Demonstration of pulsatile hepatofugal flow in the portal vein without signs of parenchymal liver disease is highly suggestive of the arterioportal fistula.
出处
《中国医学影像技术》
CSCD
北大核心
2008年第5期700-702,共3页
Chinese Journal of Medical Imaging Technology
关键词
肝
动静脉瘘
超声检查
血管造影术
数字减影
Liver
Arteriovenous fistula
Ultrasonography
Angiography, digital subtraction
