Poe L B, Coleman L L, Mahmud F
Department of Radiology, Geisinger Medical Center, Danville, PA 17822.
Radiographics. 1989 Sep;9(5):801-26. doi: 10.1148/radiographics.9.5.2678293.
Magnetic resonance imaging, because of its multiplanar capabilities and exquisite contrast differentiation, has risen above all other forms of in vivo imaging for the classification and determination of congenital central nervous system (CNS) anomalies. We briefly discuss pertinent aspects of CNS embryology and, using a recently proposed classification of central nervous system anomalies, present examples of a spectrum of abnormalities that one may encounter in practice. These anomalies include: the Chiari malformations, encephaloceles, holoprosencephaly, septooptic dysplasia, Dandy-Walker variant, hydranencephaly, phakomatoses, schizencephaly, agyria or pachygyria, and dysgenesis of the corpus callosum.
磁共振成像因其多平面成像能力和出色的对比度分辨力，在先天性中枢神经系统（CNS）异常的分类和诊断方面超越了所有其他形式的体内成像技术。我们简要讨论中枢神经系统胚胎学的相关方面，并采用最近提出的中枢神经系统异常分类方法，列举一系列在实际中可能遇到的异常病例。这些异常包括：Chiari畸形、脑膨出、前脑无裂畸形、视隔发育不良、Dandy-Walker变异型、积水性无脑畸形、 phakomatoses、脑裂畸形、无脑回或巨脑回以及胼胝体发育不全。
