Table 4.
Embolic signal counts and effective monitoring time for study arteries according to 4-hourly intervals from midnight†.
| Patient/study artery No. | Midnight-0400 | 0400–0800 | 0800-Midday | Midday-1600 | 1600–2000 | 2000–2400 | Total ES | Total time | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ES | Time | ES | Time | ES | Time | ES | Time | ES | Time | ES | Time | ||||
| 1 | 0 | 240 | 1 | 207 | 3 | 165 | 0 | 52 | 0 | 75 | 0 | 165 | 4 | 904 (15.1 h) |
|
| 2 | 0 | 220 | 0 | 103 | 1 | 189 | 0 | 186 | 0 | 148 | 0 | 159 | 1 | 1005 (16.8 h) |
|
| 3 | 0 | 235 | 0 | 233 | 0 | 125 | 2 | 207 | 1 | 215 | 0 | 208 | 3 | 1223 (20.4 h) |
|
| 4 | 0 | 240 | 0 | 225 | 0 | 226 | 0 | 195 | 0 | 202 | 0 | 190 | 0 | 1278 (21.3 h) |
|
| 5 | 0 | 240 | 0 | 191 | 0 | 115 | 0 | 185 | 0 | 219 | 0 | 156 | 0 | 1106 (18.4 h) |
|
| 6 | 3 | 276 | 5 | 200 | 2 | 112 | 3 | 198 | 3 | 185 | 4 | 240 | 20 | 1211 (20.2 h) |
|
| 7 | 1 | 204 | 7 | 165 | 10 | 158 | 9 | 191 | 1 | 139 | 0 | 205 | 28 | 1062 (17.7 h) |
|
| 8 | 0 | 182 | 0 | 0 | 0 | 156 | 0 | 137 | 0 | 228 | 0 | 221 | 0 | 924 (15.4 h) |
|
| 9 | 0 | 0 | 0 | 223 | 0 | 79 | 0 | 130 | 0 | 190 | 0 | 95 | 0 | 717 (12.0 h) |
|
| 10 | 0 | 225 | 0 | 218 | 0 | 171 | 0 | 190 | 0 | 214 | 0 | 225 | 0 | 1243 (20.7 h) |
|
| Totals/ time of day |
ES detected | 4 | 13 | 16 | 14 | 5 | 4 | 56 | |||||||
| Effective monitoring time | 2062 min = 34.37 h | 1765 min = 29.42 h | 1496 min = 24.93 h | 1671 min = 27.85 h | 1815 min = 30.25 h | 1864 min = 31.07 h | 10673 min = 177.88 h | ||||||||
| Average ES/effective monitoring hour by time of day | 0.12 (TROUGH) | 0.44 | 0.64 (PEAK) | 0.50 | 0.17 | 0.13 | 0.31 | ||||||||
†
Time is in minutes unless otherwise specified. ES, embolic signal.