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Table 4 Associations between transcranial Doppler and left carotid artery plaques

From: Assessment of intracranial vessels in association with carotid atherosclerosis and brain vascular lesions in rheumatoid arthritis

TCD variable

Presence of plaque (n = 18)

Absence of plaque (n = 23)

p Value

Right PI(a)

0.92 ± 0.17

0.77 ± 0.12

0.002

Right RI(r)

0.61 ± 0.07

0.56 ± 0.07

0.021

Right RI(a)

0.59 ± 0.09

0.53 ± 0.05

0.007

Left PI(a)

0.94 ± 0.18

0.79 ± 0.17

0.032

Left PI(h)

1.23 ± 0.29

0.94 ± 0.25

0.021

Left RI(a)

0.61 ± 0.10

0.53 ± 0.07

0.022

  1. Abbreviations: PI Pulsatility index, RI Resistivity (resistance) index, TCD Transcranial Doppler