Fig. 5From: Comparison of carotid plaque tissue characteristics in patients with acute coronary syndrome or stable angina pectoris: assessment by iPlaque, transcutaneous carotid ultrasonography with integrated backscatter analysisLinear regression analysis and Bland-Altman analysis of blue area measured by one of the observers and two observers. a:correlation between the first and the second measurement of blue area. b:correlation between the blue area measured by the first observer and the second observer. c:association between the mean value and the difference in blue area measured twice by one observer. d:association between the mean value and the difference in blue area measured by the first and the second observersBack to article page