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Table 6 Correlation coefficient between TCD parameters (side of stenosis) and SIE scores

From: Influence of collateral circulation on cerebral blood flow and frontal lobe cognitive function in patients with severe internal carotid artery stenosis

  AcoA group PcoA group OA group Controls
RT for SIE AR for SIE RT for SIE AR for SIE RT for SIE AR for SIE RT for SIE AR for SIE
Vs 0.041 0.172 0.289 −0.030 −0.557 0.214 0.095 −0.007
Vm 0.073 0.071 0.211 −0.149 − 0.566 0.153 0.042 0.023
Vd 0.084 −0.015 0.034 −0.234 −0.620* 0.125 0.013 0.096
PI −0.103 0.311* 0.392* 0.490** 0.143 0.791** 0.054 −0.098
  1. RT, response time; AR, accuracy rate; SIE, Stroop interference effects; Vs, systolic flow velocity; Vm, mean flow velocity; Vd, diastolic flow velocity; PI, pulsatility index
  2. *P < 0.05, **P < 0.01 indicate statistically significant correlations