Table 2:

The range of coverage values expected from overlap of various size devices in tubes of 3, 3.5, 4, and 4.5-mm diametersa

3-mm Vessel
3.253.754.254.75
3.2530%–47%30%–40%31%–37%34%–37%
3.7520%–37%30%–37%30%–35%
4.2521%–35%31%–34%
4.7520%–36%
3.5-mm Vessel
3.754.254.75
3.7524%–41%36%–37%33%–34%
4.2522%–36%31%–32%
4.7518%–31%
4-mm Vessel
3.754.254.75
3.7538%–46%37%–39%36%–37%
4.2521%–35%29%–33%
4.7522%–32%
4.5-mm Vessel
4.254.75
4.2536%–57%40%–44%
4.7525%–34%
  • a Note that the broadest range of coverage for each device/artery combination is always observed during overlap of identical-diameter devices. Use of devices with progressively different diameters produces correspondingly narrower ranges of coverage (due to the more consistent misregistration of strands arising from the differing pitches imposed on devices of different diameters constrained within a given diameter vessel), with absolute coverage values falling in-between the potential minima and maxima expected from overlap of identical devices.