摘要
目的研究产前超声在诊断及鉴别诊断完全性血管环中的价值。方法本文总结了5例在我院产前超声诊断、并经产后影像学复查确诊或引产后病理解剖确诊的完全性血管环胎儿的产前超声表现。结果 1例双主动脉弓构成的完全性血管环,4例右位主动脉弓、迷走动脉(3例迷走左锁骨下动脉、1例迷走左无名动脉)及左位动脉导管构成的完全性血管环。在三血管气管切面上,双主动脉弓构成的完全性血管环超声特点是:升主动脉于气管前分叉为左右两支绕行于气管两侧,左右两支在气管后汇合延续为降主动脉,血管环呈"O"型;右位主动脉弓、迷走动脉及左位动脉导管构成的完全性血管环的超声特点是:右位主动脉弓、迷走血管及左位动脉导管围绕食管形成"U"型;按照右位主动脉弓的分支数目、第一分支走行及迷走动脉分支,可鉴别迷走动脉是左锁骨下动脉或者左无名动脉。结论三血管气管切面是诊断先天性完全性血管环的重要切面,产前超声能诊断常见的完全性血管环,并且可以鉴别常见的完全性血管环。
Objective To reseach the value of prenatal echocardiography in diagnosis and differential diagnosis of complete vascular ring.Methods The prenatal echocardiograms of five fetuses with complete vascular rings diagnosed by either postnatal echocardiography or fetal autopsy at our hospital were reviewed.Results One fetus had a double aortic arch.Four fetuses had a right aortic arch,an aberrant artery（three with an aberrant left subclavian artery and one with an aberrant left innominate artery）,and a left ductus arteriosus.On the three-vessel and trachea view,the ascending aorta diverges before the trachea as the left and right aortic arches,which encircle and then converge behind the trachea as the descending aorta,forming an O-shaped complete vascular ring.A U-shaped complete vascular ring around the esophagus was composed of the right aortic arch,aberrant artery and left ductus arteriosus.The aberrant artery could be identified as either the aberrant left subclavian artery or aberrant left innominate artery based on the number of the branches of the right aortic arch,the orientation of the first branch,and the branches of the aberrant artery.Conclusion Three-vessel and trachea view is the important section to diagnose the congenital completeness vascular ring.Fetal echocardiography has great clinical value in prenatal diagnosis or differential diagnosis of complete vascular ring.
出处
《中国医药导报》
CAS
2012年第35期117-119,共3页
China Medical Herald
关键词
产前超声
完全性血管环
右位主动脉弓
Prenatal ultrasonography
Complete vascular ring
Right aortic arch
