Table 3.
Transcranial Doppler indices of intracranial arteries in LDL > 180 mg/dL versus < 180 mg/dL groups (mean ± standard deviation)
| Artery | Index | LDL >180 mg/dL | LDL <180 mg/dL | Pvalue |
|---|---|---|---|---|
| MCA | MV | 56.8 ± 12.56 | 59.1 ± 15.9 | 0.54 |
| PI | 0.79 ± 0.19 | 0.81 ± 0.15 | 0.50 | |
| RI | 0.52 ± 0.09 | 0.52 ± 0.05 | 0.41 | |
| ACA | MV | 44.5 ± 23.06 | 60.4 ± 88 | 0.69 |
| PI | 0.71 ± 0.35 | 0.84 ± 0.46 | 0.23 | |
| RI | 0.44 ± 0.19 | 0.49 ± 0.15 | 0.27 | |
| ICA | MV | 19.3 ± 16 | 28.4 ± 13.4 | 0.04* |
| PI | 0.56 ± 0.44 | 0.79 ± 0.34 | 0.055 | |
| RI | 0.34 ± 0.26 | 0.48 ± 0.19 | 0.02* | |
| PCA1 | MV | 36 ± 13 | 38.9 ± 10 | 0.12 |
| PI | 0.74 ± 0.24 | 0.8 ± 0.2 | 0.25 | |
| RI | 0.48 ± 0.01 | 0.51 ± 0.1 | 0.26 | |
| PCA2 | MV | 39.8 ± 15.4 | 39.1 ± 10.4 | 0.96 |
| PI | 0.74 ± 0.23 | 0.82 ± 0.16 | 0.22 | |
| RI | 0.48 ± 0.12 | 0.54 ± 0.11 | 0.18 | |
| VA | MV | 34.7 ± 10 | 33.6 ± 10.6 | 0.66 |
| PI | 0.78 ± 0.15 | 0.8 ± 0.15 | 0.55 | |
| RI | 0.51 ± 0.05 | 0.52 ± 0.08 | 0.45 | |
| BA | MV | 39.7 ± 9.1 | 42.30 ± 13.6 | 0.23 |
| PI | 0.81 ± 0.16 | 0.81 ± 0.22 | 0.80 | |
| RI | 0.52 ± 0.06 | 0.51 ± 0.1 | 0.80 |
Note:
*
Statistically significant (P < 0.05).
Abbreviations: MCA, middle cerebral artery; ACA, anterior cerebral artery; ICA, internal carotid artery; PCA1, first segment of posterior cranial artery; PCA2, second segment of posterior cranial artery; VA, vertebral artery; BA, basilar artery; MV, mean blood flow velocity; PI, pulsatility index; RI, resistive index.