Table 3

Comparison of IVUS and FD-OCT assessments following rotational atherectomy (n=18)

IVUSFD-OCTDifference (IVUS—FD-OCT)p Value
Mean reference lumen diameter, mm3.64±0.803.38±0.660.26±0.340.330
Mean reference lumen area, mm210.77±1.149.49±3.591.28±1.690.388
In-stent diameter, mm
 Minimum2.51±0.532.48±0.480.02±0.170.586
 Maximum4.38±0.823.81±0.670.57±0.28<0.001
 Mean3.38±0.623.25±0.600.13±0.17<0.005
In-stent area, mm2
 Minimum7.19±2.626.77±2.180.42±0.77<0.05
 Maximum12.81±4.6110.48±3.652.33±2.25<0.001
 Mean9.54±3.488.78±2.910.82±1.15<0.01
Percentage of stent malapposed, %5.5±5.019.6±15.1−14.1±12.4<0.001
Max stent malapposition, distance in mm0.57±0.321.10±0.34−0.53±0.33<0.001
Max stent malapposition, area in mm20.88±1.092.65±1.88−1.77±1.35<0.001
  • FD-OCT, frequency domain optical coherence tomography; IVUS, intravascular ultrasound.