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Table 1 Inter- and intra-reader variabilities for re-reading plaque volume (PV) of 45 plaques

From: Reproducibility of 3-dimensional ultrasound readings of volume of carotid atherosclerotic plaque

 

Reader 1

Reader 2

Reader 3

Intra-reader variability

   

PV reading 1 (μl)

71.8 (42.5)

67.8 (42.8)

70.1 (45.4)

PV reading 2 (μl)

71.6 (43.3)

70.0 (43.0)

71.5 (44.0)

ICC

0.985

0.967

0.969

Inter-reader variability

   

PV both readings (μl)

71.7 (42.7)

68.9 (42.2)

70.8 (44.4)

ICC

 

0.964

 
  1. Values are mean (standard deviation); ICC, intra-class correlation coefficient