Developmental features of the neonatal brain: MR imaging. Part II. Ventricular size and extracerebral space
| Autor: | D. A. Nicholas, E G Amparo, Carol Richardson, Mansour Mirfakhraee, C. K. Hayden, C. B. McArdle |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Cerebral atrophy
Magnetic Resonance Spectroscopy medicine.diagnostic_test Ventricular size business.industry Infant Newborn Brain Infant Magnetic resonance imaging Anatomy medicine.disease Mr imaging Cerebral Ventricles Lateral ventricles medicine.anatomical_structure medicine Neonatal brain Humans Radiology Nuclear Medicine and imaging Subarachnoid space business Severe asphyxia |
| Zdroj: | Radiology. 162:230-234 |
| ISSN: | 1527-1315 0033-8419 |
| DOI: | 10.1148/radiology.162.1.3786768 |
| Popis: | Magnetic resonance (MR) imaging with a 0.6-T magnet was performed on 51 neonates, aged 29-42 weeks postconception. In 45 neonates, the ventricular/brain ratio (V/B) at the level of the frontal horns and midbody of the lateral ventricles ranged from 0.26 to 0.34. In six other infants a V/B of 0.36 or greater was associated with either cerebral atrophy or obstructive hydrocephalus. The width of the extracerebral space measured along specified points varied little in the neonatal period and ranged from 0 to 4 mm in 48 infants. Extracerebral space widths of 5-6 mm were seen in three other infants with severe asphyxia. Prominence of the subarachnoid space overlying the posterior parietal lobes is normal in neonates and should not be confused with cerebral atrophy. The authors conclude that V/B ratios of 0.26-0.34 and extracerebral space widths of 0-4 mm represent the normal range, and that neonates whose measurements exceed these values should be followed up. |
| Databáze: | OpenAIRE |
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