Table 5 Transfer function estimate evaluation.
PatID | N 6-sec time windows | Absolute differences between frequency filtered ICP and frequency filtered estimated non-invasive pulsatile ICP | Cut-off frequency (Hz) | ||
---|---|---|---|---|---|
MWA (mmHg) | MWRT (sec) | MWRTC (mmHg/sec) | |||
1 | 462 | 0.7 ± 0.4 | 0.03 ± 0.02 | 3.91 ± 1.81 | 4 |
2 | 666 | 2.3 ± 1.9 | 0.1 ± 0.04 | 6.03 ± 4.67 | 4 |
3 | 409 | 1.4 ± 1.1 | 0.02 ± 0.02 | 5.86 ± 4.08 | 11 |
4 | 1044 | 8.1 ± 5.6 | 0.03 ± 0.04 | 20.55 ± 13.12 | 4 |
5 | 682 | 1.4 ± 0.8 | 0.04 ± 0.03 | 4.29 ± 2.31 | 3 |
6 | 321 | 0.5 ± 0.5 | 0.01 ± 0.02 | 2.77 ± 2.61 | 6 |
7 | 906 | 0.6 ± 0.3 | 0.01 ± 0.01 | 2.07 ± 1.25 | 2 |
8 | 557 | 0.9 ± 0.5 | 0.05 ± 0.03 | 3.26 ± 2.06 | 3 |
9 | 624 | 0.9 ± 0.6 | 0.03 ± 0.02 | 2.01 ± 1.89 | 4 |
10 | 771 | 2.1 ± 1 | 0.05 ± 0.03 | 8.19 ± 4.43 | 3 |
11 | 1311 | 0.7 ± 0.5 | 0.03 ± 0.03 | 7.91 ± 7.06 | 15 |
12 | 601 | 2.6 ± 1 | 0.03 ± 0.02 | 13.38 ± 5.24 | 6 |
13 | 1134 | 1.4 ± 0.3 | 16.9 ± 3.5 | 6.64 ± 1.59 | 6 |
14 | 239 | 1.2 ± 0.9 | 0.02 ± 0.02 | 4.29 ± 2.69 | 5 |
15 | 750 | 2 ± 0.9 | 0.1 ± 0.04 | 17.18 ± 6.83 | — |
16 | 524 | 0.9 ± 0.4 | 0.09 ± 0.05 | 14.11 ± 6.81 | 11 |
17 | 227 | 0.6 ± 0.4 | 0.08 ± 0.03 | 5.72 ± 2.11 | 5 |
18 | 2460 | 2 ± 1.7 | 0.05 ± 0.03 | 7.28 ± 5.3 | 4 |
19 | 330 | 0.8 ± 0.7 | 0.03 ± 0.03 | 6.73 ± 4.83 | 10 |
20 | 1722 | 1.8 ± 2 | 0.02 ± 0.02 | 6.63 ± 7.1 | 3 |
21 | 265 | 3.5 ± 2.2 | 0.02 ± 0.02 | 12.72 ± 8.72 | 3 |
22 | 498 | 1.6 ± 0.8 | 0.08 ± 0.03 | 17.4 ± 5.65 | 2 |
23 | 559 | 0.4 ± 0.4 | 0.05 ± 0.03 | 1.93 ± 1.39 | 12 |
24 | 347 | 0.8 ± 0.7 | 0.01 ± 0.01 | 3.88 ± 3.34 | 4 |
25 | 2957 | 1.2 ± 0.8 | 0.1 ± 0.05 | 8.73 ± 4.02 | 5 |
26 | 420 | 0.9 ± 0.8 | 0.01 ± 0.01 | 3.34 ± 2.9 | 4 |
27 | 2782 | 2.3 ± 1 | 0.07 ± 0.03 | 9.25 ± 3.31 | 2 |
28 | 791 | 1.7 ± 1.8 | 0.02 ± 0.02 | 4.42 ± 4.75 | 2 |
AVG ± STD | 1.6 ± 1.5 | 0.06 ± 3.2 | 7.5 ± 5.0 | ||
SUM | 24,359 |