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Spin echo (a) and UTE (b) images of an axial slice of a rat with SPIO labeled flank tumors (yellow arrows) and the corresponding SSE ultrashort T2* map (c) and UTE T2* map (d). The SSE ultrashort T2* map demonstrated a similar pattern relative to the UTE T2* map. However, the UTE T2* map detected more content because the SSE ultrashort T2* approach is specific for long T2 components. Color bars represent T2* values in ms.
