Table 3.
Comparison of the CBF and CVR difference (Δ) before and after the procedure (post-pre) in patients with improved cognition (improved) and unchanged cognition (unchanged)
| ΔCBF at rest (Post-Pre, mL/min/100 g) | ΔCVR (Post-Pre, %) | |||||
|---|---|---|---|---|---|---|
| Improved scores | Unchanged scores | P-value | Improved scores | Unchanged scores | P-value | |
| Full scale IQ | −0.9 ± 4.4 | 3.5 ± 3.4 | 0.14 | 29.2 ± 22.5 | −3.8 ± 14.3 | 0.0097* |
| Verbal IQ | 1.0 ± 5.5 | 2.7 ± 3.1 | 0.42 | 16.3 ± 9.0 | 3.7 ± 23.3 | 0.30 |
| Performance IQ | 0.5 ± 3.7 | 2.7 ± 4.4 | 0.69 | 34.4 ± 22.5 | 0.2 ± 16.7 | 0.019* |
| Verbal Comprehension Index | 4.0 ± 1.7 | 1.4 ± 4.8 | 0.39 | 0.1 ± 5.0 | 7.3 ± 24.6 | 0.63 |
| Perceptual Organization Index | 2.3 ± 4.6 | 1.8 ± 4.5 | 0.85 | 13.0 ± 30.4 | 1.7 ± 16.3 | 0.38 |
| Working Memory Index | 1.3 ± 4.4 | 2.7 ± 4.5 | 0.57 | 11.0 ± 25.8 | 0.5 ± 17.5 | 0.39 |
| Processing Speed Index | 2.0 ± 4.4 | 2.0 ± 4.7 | 0.99 | 0.8 ± 21.9 | 10.7 ± 22.4 | 0.42 |
*
P <0.05. CBF, cerebral blood flow; CVR, cerebrovascular reserve; IQ, Intelligence Quotient.