Normal Development
Fig. 1.1 Fetal MR autopsy. Normal brain at 22 gestational weeks (GW) (a) and 21 GW (b) on T2-weighted images. Voxel size 100 nl. 1.1 Fetal MR Autopsy Technique In…
Posterior Fossa Malformations
Fig. 3.1 Cerebellar anatomy. Comparison between schematic representations of the cerebellar vermis in a sagittal section (a) with a midsagittal section of an MR autopsy in a fetus of 19…
Malformations of Cortical Development
1. Malformations secondary to abnormal neuronal and glial proliferation and apoptosis A. Severe congenital microcephaly (MIC) B. Megalencephaly (MEG) C. Cortical dysgenesis with abnormal cell proliferation but without neoplasia D….
Normal and Abnormal Forebrain Commissures
Fig. 2.1 Normal corpus callosum at 2 months (a), 1 year (b), and 14 years (c) on midsagittal T1-weighted images. White arrow anterior commissure, thick white arrows hippocampal commissure The…
Malformations of the Eye and Orbit
and Fabio Triulzi2 (1) Department of Radiology and Neuroradiology, Children’s Hospital V. Buzzi, Milan, Italy (2) Department of Neuroradiology, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy Fabio Triulzi…
Ventriculomegaly
Fig. 7.1 Lateral ventricle measurement: the atrial diameter (white line)is measured on the coronal slice at the level of the atria, on an axis perpendicular to that of the ventricle,…
Focal and Multifocal Ischemic/Hemorrhagic Lesions
Preplacental hypoxia Hypoxic environment Maternal cardiovascular diseases Maternal anemia, infection, or chronic inflammation Utero-placental hypoxia Abnormal placenta implantation Preeclampsia Postplacental hypoxia Diminished uterine artery flow Progressive fetal cardiac failure Vascular…
Congenital Infections
Fig. 8.1 Fetal infection, unspecific signs on fetal MR. Parvovirus infection 25 GW: placental thickening and oligohydramnios (a, b). Toxoplasmosis, 22 GW: ascites (arrow c). Parvovirus infection 23 GW, fetal…
Twin to Twin Transfusion Syndrome
, Fabio Triulzi1 and Andrea Righini2 (1) Department of Neuroradiology, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy (2) Pediatric Radiology and Neuroradiology Department, Children’s Hospital V. Buzzi, Milan, Italy …
Vascular Malformations
Fig. 6.1 Dural sinus malformation. Fetal MR study at 26 GW (a–c) shows a mass at the level of the torcular (arrows) with a diffuse hyperintense aspect on T1-weighted image…
