Intracranial hematomas: imaging by high-field MR.
Publication/Presentation Date
10-1-1985
Abstract
Twenty intracranial hematomas between 1 day and over 1 year old were imaged using magnetic resonance at 1.5 T, with T1- and T2-weighted spin-echo pulse sequences. Characteristic intensity patterns were observed in the evolution of the hematomas, which could be staged as acute (less than 1 week old), subacute (greater than 1 week and less than 1 month old), or chronic (greater than 1 month old). Acute hematomas were characterized by central hypointensity on T2-weighted images (WIs). Subacute hematomas had peripheral hyperintensity on T1-WIs and then on T2-WIs. This hyperintensity proceeded to fill in the hematoma in the chronic stage. In subacute and chronic hematomas, there was hypointensity on T2-WIs in the immediately adjacent part of the brain. On T2-WIs of acute and subacute hematomas, the nearby white matter was characterized by hyperintensity, consistent with edema. A different mechanism is proposed for each of the three characteristic intensity patterns. Two of these mechanisms increase in proportion to the square of the magnetic field magnitude.
Volume
157
Issue
1
First Page
87
Last Page
93
ISSN
0033-8419
Published In/Presented At
Gomori, J. M., Grossman, R. I., Goldberg, H. I., Zimmerman, R. A., & Bilaniuk, L. T. (1985). Intracranial hematomas: imaging by high-field MR. Radiology, 157(1), 87–93. https://doi.org/10.1148/radiology.157.1.4034983
Disciplines
Medicine and Health Sciences | Pediatrics
PubMedID
4034983
Department(s)
Department of Pediatrics
Document Type
Article