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PAA-g-(DTPA-Gadolinium): A Versatile Agent to Visualize the Effiencient Interstitial Stream at 7 Tesla
Xiaohan Zhou1,2, Yi Hou3, Wentao Liu1, and Dong Han1,2
1National Centre for Nanoscience and Technology, Beijing, China, 2University of Chinese Academy of Sciences, Beijing, China, 3Beijing University Of Chemical Technology, Beijing, China
 The novel agent PAA-Gd can display its high efficiency to visualize the stream in radiology and pathology study as a versatile enhancer.
Fig1. (A) The synthetic scheme of zwitterionic MCP contrast agent PAA-Gd. (B) Viability of HUVE cells treated by PAA-Gd and Gd-DTPA. (C) Signal intensity map of T1 weighted MR images (TE= 10 ms, TR= 300 ms) of aqueous solution of PAA-Gd in 200 μL Eppendorf tubes according to different Gd3+ concentration from 0 to 1mM. (D) Linear regression fitting curve (solid line) of calculated R1 value (‘■’ points) was performed.
Fig2. The image obtained immediately (A) and 12 minutes (B) after intravenous injection of PAA-Gd. DCE images of pre-injection (C), post-injection (D) and the final status of mouse after 30 minutes (E) on the kidney plane. A long distance transportation trace is depicted and emphasized with white arrow in (F) on centric section.