WEBJun 20, 2024 · However, as it can be complicated to recall the MRI features of aging blood through the 5 stages of hematoma evolution, several mnemonics have been devised: I Be, IdDy, BiDy, BaBy, Doo Doo. I Bleed, I Die, Bleed Die, Bleed Bleed, Die Die. I BID BaD BaBy DO. I Bleed, I Die, But Department Boss Bleeds, Department Dies. Mnemonics