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Figure 6
PCI of rat portal veins before and after CO2 microbubbles injection. Panel (c) is a magnified image of the black boxed region in (b). Note that no vessels could be detected before CO2 microbubbles injection (a), and the portal veins could be visibly revealed at 2 min (c) and 30 min (d) after injection. The images were obtained at an energy of 19 keV, the pixel size was 3.25 µm × 3.25 µm, the exposure time was 1 s and the SDD was 30 cm.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 24| Part 6| November 2017| Pages 1260-1264
https://doi.org/10.1107/S1600577517014072
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