Window Settings for the Study of Calcified Carotid Plaques with Multidetector CT Angiography

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• Online Figures 1-4 (PDF) -
  
  Figure 1 (A, B, C): Scatterplot A between width and level (NASCET II) with linear regression through the origin with 99% mean prediction interval and 99% individual prediction interval. WIDTH = 2.76*LEVEL. Scatterplot B between intralumen HU value and level (NASCET II) with linear regression through the origin with 99% mean prediction interval and 99% individual prediction interval . LEVEL= 0.73* INTRALUMEN HU VALUE. Scatterplot C between Intralumen HU value and width (NASCET II) with linear regression through the origin with 99% mean prediction interval and 99% individual prediction interval. WIDTH= 2.06* INTRALUMEN HU VALUE.
  
  Figure 2 (A, B, C): Scatterplot A between width and level (NASCET III) with linear regression through the origin with 99% mean prediction interval and 99% individual prediction interval. WIDTH = 2.83*LEVEL. Scatterplot B between intralumen HU value and level (NASCET III) with linear regression through the origin with 99% mean prediction interval and 99% individual prediction interval. LEVEL= 0.73* INTRALUMEN HU VALUE. Scatterplot C between Intralumen HU value and width (NASCET III) with linear regression through the origin with 99% mean prediction interval and 99% individual prediction interval. WIDTH= 2.10* INTRALUMEN HU VALUE.
  
  Figure 3 (A, B, C): Scatterplot A between width and level (NASCET IV) with linear regression through the origin with 99% mean prediction interval and 99% individual prediction interval. WIDTH = 2.81*LEVEL. Scatterplot B between intralumen HU value and level (NASCET IV) with linear regression through the origin with 99% mean prediction interval and 99% individual prediction interval. LEVEL= 0.72* INTRALUMEN HU VALUE. Scatterplot C between Intralumen HU value and width (NASCET IV) with linear regression through the origin with 99% mean prediction interval and 99% individual prediction interval. WIDTH= 2.09* INTRALUMEN HU VALUE.
  
  Figure 4 (A, B, C): Scatterplot A between width and level (NASCET V) with linear regression through the origin with 99% mean prediction interval and 99% individual prediction interval. WIDTH = 2.82*LEVEL. Scatterplot B between intralumen HU value and level (NASCET V) with linear regression through the origin with 99% mean prediction interval and 99% individual prediction interval. LEVEL= 0.72* INTRALUMEN HU VALUE. Scatterplot C between Intralumen HU value and width (NASCET V) with linear regression through the origin with 99% mean prediction interval and 99% individual prediction interval. WIDTH= 2.06* INTRALUMEN HU VALUE.