Prayer Daniela, Brugger Peter Christian, Prayer Lucas
Department of Neuroradiology, University Clinics of Radiodiagnostics, Medical University Vienna, Waehringerguertel 18-10, Vienna, Austria.
Pediatr Radiol. 2004 Sep;34(9):685-93. doi: 10.1007/s00247-004-1246-0. Epub 2004 Jul 28.
The development of ultrafast sequences has led to a significant improvement in fetal MRI. Imaging protocols have to be adjusted to the rapidly developing fetal central nervous system (CNS) and to the clinical question. Sequence parameters must be changed to cope with the respective developmental stage, to produce images free from motion artefacts and to provide optimum visualization of the region and focus of interest. In contrast to postnatal studies, every suspect fetal CNS abnormality requires examination of the whole fetus and the extrafetal intrauterine structures including the uterus. This approach covers both aspects of fetal CNS disorders: isolated and complex malformations and cerebral lesions arising from the impaired integrity of the feto-placental unit.
超快序列的发展使胎儿磁共振成像（MRI）有了显著改善。成像方案必须根据快速发育的胎儿中枢神经系统（CNS）以及临床问题进行调整。必须改变序列参数，以适应相应的发育阶段，生成无运动伪影的图像，并提供对感兴趣区域和焦点的最佳可视化。与产后研究不同，每例可疑的胎儿中枢神经系统异常都需要对整个胎儿以及包括子宫在内的胎儿外宫内结构进行检查。这种方法涵盖了胎儿中枢神经系统疾病的两个方面：孤立性和复杂性畸形以及因胎儿 - 胎盘单位完整性受损而引起的脑损伤。
