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Dynamic contrast enhanced T1-weighted images before (A), 0.5 (B), 5 (C), 10 (D), 15 (E), 20 (F), 25 (G), and 30 (H) min after intravenous administration of SPIO. And T2-weighted images before (I) and 30 min after (J) SPIO administration. T, tumor.
