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Temporal evolution of intracerebral hematoma on MRI

Temporal evolution of intracerebral hematoma on MRI
Descriptor Hemoglobin moiety Approximate age T1 T2
Hyperacute Oxy <3 hours iso or ↓ ↑
Acute Deoxy <3 days iso or ↓ ↓
Early subacute Intracellular – met 3 to 13 days ↑ ↓
Late subacute Extracellular – met <3 weeks ↑ ↑
Chronic Hemosiderin/ferritin >3 weeks iso or ↓ ↓
↑: hyperintense compared with normal brain; ↓: hypointense compared with normal brain; deoxy: deoxyhemoglobin; ICH: intracerebral hematoma; iso: isointense or same signal intensity as brain; met: methemoglobin; MRI: magnetic resonance imaging; oxy: oxyhemoglobin; T1: T1-weighted sequence; T2: T2-weighted sequence.
Courtesy of Glenn A Tung, MD, FACR.
Graphic 132279 Version 2.0

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