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Large and small diameters of the stents in relation to the position of the stent in the ET. Zero on the x-axis refers to the isthmus for each ET. The larger the distance between both curves, the more flattened appeared the stent. In stent NiTi 1a, large and small diameters swapped at about 7 mm distance from the isthmus. For stent NiTi 2, a periodic decrease in the large diameter is obvious.
