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. 2018 Nov 19;13:117. doi: 10.1186/s13019-018-0803-9

Fig. 5.

Fig. 5

IVUS images showing a constrictive versus b loose fitting external stent (red arrows). Difference in wall thickness (yellow) and intima layer (blue) can be observed. In addition, there is formation of “neo-adventitia” between the loose-fitting stent and the original vessel wall