肺动脉瓣狭窄合并动脉导管未闭的超声诊断  

Diagnosis of Pulmonary Stenosis with Patent Ductus Arteriousus in Children by Echocardiography

作　　者：赵镭[1] 彭学慧[1] 蒋国平[1] 

机构地区：[1]浙江大学医学院附属儿童医院,杭州市310003

出　　处：《中国医学影像学杂志》2007年第4期281-283,共3页Chinese Journal of Medical Imaging

摘　　要：目的:探讨肺动脉瓣狭窄(PS)合并动脉导管未闭(PDA)的超声诊断方法。材料和方法:超声测量16例PS+PDA及16例单纯PS患儿的主动脉瓣口峰值流速(Vp),平均流速(Vm)及流速时间积分(VTI)。除常规在胸骨旁短轴切面扫查外,应用二维、彩色及脉冲多普勒于胸骨旁肺动脉分叉切面,胸骨上主动脉弓长轴切面以及剑突下短轴切面探查PDA。结果:16例PS+PDA患儿检出PDA12例,漏诊4例。PS+PDA的主动脉瓣口Vp略高于单纯PS患者。结论:探查PS患儿胸骨旁肺动脉分叉切面,胸骨上主动脉弓长轴切面以及剑突下短轴切面有助于发现PDA。PS患儿主动脉瓣口Vp增高时提示可能存在PDA。Purpose： Though ultrasound was proven accurate in illustrating pulmonary stenosis（PS） as well as patent ductus arteriousus （PDA） in children, it is very difficult for ultrasound to diagnose PS complicated with PDA. The aim of the study was to explore the feasibility of diagnostic ultrasound in the complicated disease. Materials and Methods： The aorta peak velocity（ Vp）, mean velocity（ Vm）, velocity time integrate（VTI） were measured by pulse wave Doppler echocardiography（PWDE） in 16 cases of PS ＋ PDA and 16 of pure PS. In addition to the routine parasternal aortic root short axis view, the parasternal pulmonary artery branch, suprasternal aortic arch short axis and subcostal pulmonary artery long axis views were employed with color and pulse wave Doppler flow imaging for the detection of the abnormalities. Results： Twelve of 16 cases of PS ＋ PDA were correctly diagnosed, but 4 missed. The aortic Vp in patients with PS ＋ PDA was higher t than that in patients with pure PS. Conclusion： The extra views might be of help in discovering PS ＋ PDA better and the rise in aortic Vp in PS patients might suggest the co-existing PDA.

关 键 词：肺动脉瓣狭窄 动脉导管未闭 超声心动图 

分 类 号：R540.45[医药卫生—心血管疾病]