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Table 3 Absolute differences in CIMT between the different DR steps

From: Measurements of carotid intima media thickness in non-invasive high-frequency ultrasound images: the effect of dynamic range setting

  DR step ABD INFO TOTAL
Difference 95% CI Difference 95% CI Difference 95% CI
[dB] [mm] [mm] [mm] [mm] [mm] [mm]
CIMT mean 40-55 0.032 (0.030, 0.035) 0.037 (0.034, 0.041) 0.034 (0.032, 0.036)
55-70 0.026 (0.025, 0.028) 0.027 (0.025, 0.030) 0.027 (0.025, 0.028)
70-85 0.016 (0.014, 0.017) 0.014 (0.012, 0,016) 0.015 (0.014,0.016)
CIMT max 40-55 0.041 (0.037,0.044) 0.043 (0.039, 0.048) 0.042 (0.039, 0.045)
55-70 0.029 (0.026,0.032) 0.033 (0.029, 0.038) 0.031 (0.029, 0.033)
70-85 0.020 (0.018,0.023) 0.015 (0.012, 0.019) 0.018 (0.016, 0.020)
  1. For all comparisons p < 0.001. All differences are given as mean values, and in millimetres.