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Hemoglobin breakdown products according to the phase of bleeding as well as their T1 and T2 signal.
| Hemoglobin breakdown products | Phase of bleeding | T1 signal intensity | T2 signal intensity |
|---|---|---|---|
| Oxyhemoglobin | Hyperacute | Low | High |
| Deoxyhemoglobin | Acute | Low/iso | Low |
| Intracellular methemoglobin | Early subacute | High | Low |
| Extracellular methemoglobin | Late subacute | High | High |
| Hemosiderin | Chronic | Low | Low |
