Article Figures & Data
Figures
- Fig 1.
Placement of 2D planes for flow measurement at the C4 and C7 segments in subjects with helical (A) and laminar (B) carotid blood flow patterns.
- Fig 2.
Velocity diagrams at the C4 (left) and C7 (right) segments of 1 individual carotid artery with peak acceleration values of 74 mL/s2 at C4 and 34 mL/s2 at C7.
- Fig 3.
PI (top), RI (middle), and PA (bottom) of the 17 volunteers proximally (at segment C4) and distally (segment C7) averaged over the left and right ICAs.
- Fig 4.
Time-resolved blood flow visualization in a subject with helical blood flow in the left ICA.
Tables
- Table 1:
Estimates and results of the likelihood ratio tests for the fixed effects of the linear mixed-effects model
End Point Contrast Estimate χ2 (1) P Value PI Distal-proximal −0.19 37.8 <.0001 RI Distal-proximal −0.08 27.5 <.0001 PA Distal-proximal −0.03 31.2 <.0001 - Table 2:
Mean values and the standard error of PI, RI, and PA proximal (C4) and distal (C7) to the carotid siphona
End Point Location Mean Value Standard Error PI Proximal (C4), 1.0568 0.02425 distal (C7) 0.8666 0.02576 RI Proximal (C4), 0.5039 0.01204 distal (C7) 0.4299 0.01409 PA Proximal (C4), 0.0846 0.00375 distal (C7) 0.0581 0.00364 -
a The standard error is defined as the SD of the sampling distribution associated with the estimation method.
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