[Retracted] Different Grades of Collateral Circulation for Evaluating Cerebral Hemodynamic Status in Carotid Artery Stenosis
Table 5
Comparison between cerebral perfusion and collateral circulation in patients with carotid near-occlusion.
ROIs
Grade 1
Grade 2
Grade 3
value
Frontal lobe
rCBF
1.09 ± 0.34
0.95 ± 0.25
1.00 ± 0.28
0.349
rMTT
1.07 ± 0.38
0.99 ± 0.26
1.03 ± 0.29
0.729
rTTP
1.07 ± 0.22
1.06 ± 0.13
1.05 ± 0.24
0.917
Basal ganglia
rCBF
0.90 ± 0.22
0.95 ± 0.28
1.01 ± 0.25
0.322
rMTT
1.21 ± 0.28
1.07 ± 0.29
0.96 ± 0.29
0.024∗
rTTP
1.13 ± 0.15
1.06 ± 0.13
1.02 ± 0.13
0.040∗
Temporal lobe
rCBF
1.08 ± 0.25
1.02 ± 0.23
0.99 ± 0.24
0.449
rMTT
1.08 ± 0.21
1.03 ± 0.20
1.02 ± 0.16
0.525
rTTP
1.10 ± 0.10
1.05 ± 0.09
1.03 ± 0.08
0.047∗
All data are means ± SE. Note: ROIs: regions of interest; rCBF: relative cerebral blood flow; rMTT: relative mean transit time; rTTP: relative time to peak. .
