Magnetic resonance imaging of the child's brain |
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Authors: | Beverly L. Hershey Robert A. Zimmerman |
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Affiliation: | (1) Present address: Department of Radiology, Hospital of the University of Pennsylvania, and The Children's Hospital of Philadelphia, 19104 Philadelphia, PA, USA |
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Abstract: | The most significant difference between magnetic resonance imaging (MRI) and computed tomography (CT) is that the former graphic representation of the cerebrospinal axis and its structures does not use ionizing radiation or the injection of contrast material. The physical principles of MRI and the very characteristic appearances of some pathological processes common in children require special study. Low-proton density areas are generally dark; the short T1 value is responsible for white matter appearing clear; inversion recovery sequences permit study of the progression of myelination. |
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Keywords: | Magnetic resonance imaging White matter Gray matter Congenital cerebrospinal anomalies Brain tumors Vascular abnormalities |
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