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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