Biomedical Science Letters

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Table. 2.

The changes of cerebral blood flow velocity after smoking

Before smoking After smoking Difference (%) P-value
MCA (n=8)
PSV (cm/s) 109.1±20.8 92.3±12.0 -15.3 0.00
MV (cm/s) 63.0±14.9 55.7±8.7 -11.5 0.02
PI 0.91±0.28 0.80±0.21 -12.0 0.03
RI 0.65±0.21 0.54±0.17 -16.9 0.00
ACA (n=8)
PSV (cm/s) 73.5±13.8 65.5±10.9 -10.8 0.01
MV (cm/s) 32.8±8.1 30.1±6.0 -8.2 0.01
PI 1.04±0.17 0.95±0.09 -8.6 0.02
RI 0.67±0.18 0.62±0.12 -7.4 0.04
PCA (n=8)
PSV (cm/s) 63.6±11.0 59.8±8.7 -5.9 0.06
MV (cm/s) 42.6±7.3 41.1±5.0 -3.5 0.15
PI 1.04±0.18 0.99±0.07 -4.8 0.07
RI 0.66±0.10 0.63±0.08 -4.5 0.09

Wilcoxon test was used. All parameters are expressed as mean ± SD. PSV, peak systolic velocity; MV, mean velocity; PI, pulsatility index; RI, resistance index; ACA, the anterior cerebral artery; MCA, the middle cerebral artery; PCA, the posterior cerebral artery

Biomed Sci Letters 2023;29:34-40 https://doi.org/10.15616/BSL.2023.29.1.34
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