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(A) Clinical CT image and (B) μCT image of vials containing bismuth nanoparticles labeled 1-5 with bismuth concentrations of 0, 14, 46, 64, and 143 mM, respectively. (C) Graph of attenuation vs. concentration of bismuth at different X-ray tube voltages. Clinical CT kVp values of 80, 100, 120, and 140kVp and μCT value of 80kV.
