[Retracted] Different Grades of Collateral Circulation for Evaluating Cerebral Hemodynamic Status in Carotid Artery Stenosis
Table 2
Correlation between cerebral CTP parameters and collateral circulation in selected ROIs.
ROIs
Grade 1
Grade 2
Grade 3
value
rCBV
Frontal lobe
1.094 ± 0.378
1.122 ± 0.429
1.133 ± 0.512
0.926
Basal ganglia
1.061 ± 0.360
1.057 ± 0.413
1.052 ± 0.408
0.996
Temporal lobe
1.158 ± 0.450
1.077 ± 0.449
1.218 ± 0.528
0.533
Occipital lobe
1.065 ± 0.291
1.172 ± 0.520
1.047 ± 0.230
0.381
rCBF
Frontal lobe
1.000 ± 0.334
1.113 ± 0.759
1.042 ± 0.241
0.621
Basal ganglia
1.006 ± 0.291
0.953 ± 0.291
1.038 ± 0.221
0.592
Temporal lobe
0.999 ± 0.295
0.839 ± 0.293
1.107 ± 0.441
0.344
Occipital lobe
1.033 ± 0.539
1.226 ± 0.894
1.122 ± 0.323
0.419
rMTT
Frontal lobe
1.251 ± 1.005
1.299 ± 1.243
1.052 ± 0.375
0.720
Basal ganglia
1.114 ± 0.424
1.107 ± 0.382
1.055 ± 0.486
0.865
Temporal lobe
1.247 ± 0.570
1.178 ± 0.341
1.099 ± 0.419
0.514
Occipital lobe
1.122 ± 0.393
1.049 ± 0.393
1.037 ± 0.317
0.565
rTTP
Frontal lobe
1.024 ± 0.075
1.045 ± 0.095
1.039 ± 0.085
0.959
Basal ganglia
1.024 ± 0.106
1.068 ± 0.251
1.004 ± 0.079
0.318
Temporal lobe
1.119 ± 0.271
1.059 ± 0.129
1.010 ± 0.085
0.058
Occipital lobe
1.058 ± 0.098
1.042 ± 0.076
1.018 ± 0.083
0.238
All data are means ± SE. Note: ROI: region of interest; rCBV: relative cerebral blood volume; rCBF: relative cerebral blood flow; rMTT: relative mean transit time; rTTP: relative time to peak. .
