介绍3例Galen动脉瘤样畸形(VGAMs)的胎儿静脉,通过磁共振成像(MRI)诊断,并突出这些心血管发现。
我们回顾性分析了3例妊娠31、32和33周时使用VGAM的胎儿。MRI观察喂养动脉和引流静脉。评估了由病变中的高血流量引起的脑继发性变化和高输出心力衰竭。两个胎儿出生了,并进行新生儿MRI检查。一个胎儿被终止。
每个胎儿大脑中线的特征性扩张结构。动静脉瘘导致脑部解剖变化,例如在脑积水中,扩张喂养血管(一个或多个),颈静脉,和/或上腔静脉。在两个胎儿中观察到大量头臂血管扩张。分娩后,一个婴儿有新生儿窒息和鼻窦血栓形成,MRI显示缺氧缺血性脑病。在所有三例病例中均检测到心脏肥大。
视野大,胎儿MRI可以观察脑VGAM,以及心脏和受影响的大血管。它可以确定脑积水,缺血,颅内出血,和鼻窦血栓形成.提供有关婴儿全身的此类信息可以帮助临床医生确定最合适的治疗方法。
4J.Magn.雷森。影像2017;46:1535-1539。
To present three fetal vein of Galen aneurysmal malformations (VGAMs), which were diagnosed through magnetic resonance imaging (MRI), and highlight these cardiovascular findings.
We retrospectively reviewed three fetuses with VGAM at 31, 32, and 33 weeks of gestation. Feeding arteries and draining veins were observed by MRI. Secondary changes in the brain and high-output heart failure caused by high blood flow in the lesion were evaluated. Two fetuses were born, and neonatal MRI was performed. One fetus was terminated.
A characteristic dilated structure in the midline of the brain presented in each fetus. The arteriovenous fistula led to anatomical brain changes such as in the hydrocephalus, dilated feeding vessels (one or more), jugular vein, and/or superior vena cava. Substantial brachiocephalic vessel dilation was observed in two fetuses. Following parturition, one baby had neonatal asphyxia and sinus thrombosis, and MRI revealed hypoxic-ischemic encephalopathy. Cardiomegaly was detected in all three cases.
With a large field of view, fetal MRI can observe brain VGAM, as well as the heart and affected large vessels. It can determine hydrocephalus, ischemia, intracranial hemorrhage, and sinus thrombosis. Providing such information on the infant\'s entire body can aid clinicians in determining the most appropriate treatment.
4 J. Magn. Reson. Imaging 2017;46:1535-1539.