Characteristic | HEVs | aMCI | AD | NPH | P-value |
---|---|---|---|---|---|
Number of subjects | 12 | 10 | 9 | 13 | NS |
Age (years) | 71 ± 9 | 78 ± 7 | 79 ± 5 | 70 ± 6 | NS |
Disease duration (months) | / | 27 ± 18 | 29 ± 11.4 | 24 ± 15 | NS |
MMSE | 29 ± 2 | 26 ± 3 | 21 ± 3 | ND | <0.05 |
BPM | 78 ± 10 | 65 ± 8 | 72 ± 8 | 73 ± 15 | NS |
tCBF (ml/min) | 509 ± 108 | 638 ± 126 | 560 ± 83 | 450 ± 129 | <0.01 |
API | 59 ± 12 | 119 ± 69 | 107 ± 50 | 93 ± 42 | <0.05 |
Arterial pulse volume (ml) | 0.8 ± 0.3 | 1.4 ± 0.4 | 1 ± 0.3 | 0.8 ± 0.4 | <0.01 |
VBF (ml/min) | 367 ± 130 | 522 ± 157 | 457 ± 71 | 361 ± 92 | 0.01 |
AV stroke volume (ml/CC) | 0.7 ± 0.3 | 1.3 ± 0.3 | 1 ± 0.5 | 0.9 ± 0.4 | 0.01 |
AV delay (% of CC) | 18 ± 6 | 12 ± 6 | 8 ± 7 | 10 ± 4 | <0.01 |
Cervical stroke volume (μl/CC) | 457 ± 154 | 584 ± 152 | 450 ± 221 | 455 ± 133 | NS |
Aqueductal stroke volume (μl/CC) | 34 ± 17 | 73 ± 33 | 39 ± 18 | 167 ± 89 | <0.01 |