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. 2016 Jun 1;11(6):e0156899. doi: 10.1371/journal.pone.0156899

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© 2016 Salamon et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 6 — (a) Photography of the vessel phantom with stenosis. (b) 2D PD-weighted MRI of the phantom with stenosis and angioplasty balloon inflated to 4.5 bar with MM4 for visualization (c) of the stenosis on sagittal MPI. (d) Photography of the vessel phantom after road map guided angioplasty with removal of the stenosis (ruptured string ligature). (e) MRI and (f) sagittal MPI verified the successful angioplasty. (g) MPI-MIP in z-projection of two of the three fiducials. (h) Four ROIs were placed over the balloon, light and dark blue outside the stenosis, the red and green within the stenosis. (i) The time curve during angioplasty showed the iron mass (arbitrary units); within the stenosis (red ROI) the iron mass is smaller at the beginning of dilatation but at 70s (20 bar) suddenly increases to the level of the blue and green colored ROIs indicating successful angioplasty.