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Figure 5: Residual flows are assessed by measurement of color width in horizontal (a) and vertical (b) planes. When immediate postprocedural residual flows are noted (b) between two devices, they often disappear on follow-up after 6–12 months possibly due to endothelialization

Figure 5: Residual flows are assessed by measurement of color width in horizontal (a) and vertical (b) planes. When immediate postprocedural residual flows are noted (b) between two devices, they often disappear on follow-up after 6–12 months possibly due to endothelialization