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Table 2. 
Distributions of anatomic and procedural data
Variablen (%)
Stenosis severity
    <50%4 (4)
    50%–70%38 (41)
    >70%51 (55)
Stenosis <10 mm to bifurcation58 (62)
Presence of coarse calcification36 (39)
    Premedication
    Glycopyrrolate65 (70)
    Atropine8 (9)
    Both3 (3)
    Unknown17 (18)
Number of dilations
    0–140 (43)
    235 (38)
    3–513 (14)
    Unknown5 (5)
Residual stenosis after stenting
    0%–10%53 (57)
    11%–20%19 (20)
    21%–30%15 (16)
    31%–40%6 (7)
Dilation percentage obtained*
    10%–39%12 (13)
    40%–69%39 (42)
    70%–99%42 (45)
  • * The formula is (stenosis severity percentage before carotid artery stent placement) − (residual stenosis percentage after carotid artery stent placement).