Approach to the synthesis of hollow magnetic nanoparticles used for long-acting and targeted contras

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Background Vessels can be displayed clearly with contrast agents flashily but not long.However, continuous vascular imaging and less contrast agents would be beneficial to the patients undergoing interventional endovascular procedures,especially complex vascular intervention.Therefore, the aims of the present study were to improve regular contrast agents, to show long residence time in the targeted blood vessel.
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