Hemorrhage and hemorrhagic infections in the brain.
Hemorrhage in the brain can be accurately staged using a combination of T1- and T2-weighted MR images. The MR appearance depends on the form of hemoglobin present and on whether hemolysis has occurred. The stages of hemorrhage distinguishable by MR imaging are: hyperacute (less than 1 day, intracellular oxyhemoglobin), acute (1-3 day, intracellular methemoglobin), late subacute (7-14 days, extracellular methemoglobin) and chronic (14+ days, hemosiderin rim).
Memorial Magnetic Resonance Center, Long Beach Memorial Medical Center, California.
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Bradley
D000328:Adult; D001424:Bacterial Infections / Q000175:diagnosis*; D001927:Brain Diseases / Q000175:diagnosis*; D002543:Cerebral Hemorrhage / Q000175:diagnosis*; D005260:Female; D006406:Hematoma / Q000175:diagnosis*; D006407:Hematoma, Epidural, Cranial / Q000175:diagnosis; D006408:Hematoma, Subdural / Q000175:diagnosis; D006454:Hemoglobins; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged
D006454:Hemoglobins