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In vivo MR angiography and MRI of the bladder in mice. (A, C) MIP images of aorticus abdominalis (red ellipse) with intravenous injection of Gd@HbCe6-PEG nanoparticles (A) and Gd-DTPA (C). (B, D) T1-weighted MR imaging of the bladder (white ellipse) of mice with intravenous injection of Gd@HbCe6-PEG nanoparticles (B) and Gd-DTPA (D). MIP, maximum intensity projection.
