Table 2.
Waveform velocimetry indicators by level of mid-cerebral artery peak systolic velocity.
| Variable | MCA-PSV MoM < 1.5 | MCA-PSV MoM ≥ 1.5 | p-Value |
|---|---|---|---|
| n | 237 | 17 | |
| Mean PSV (cm/s) | 48.82 | 72.09 | <0.0001 |
| Mean heartbeat (s) | 0.41 | 0.39 | 0.16 |
| Mean SD-DT (s) | 0.34 | 0.32 | 0.11 |
| Mean SAT (s) | 0.07 | 0.07 | 0.8 |
| Mean SD-DT/SAT | 5.21 | 4.7 | 0.37 |
MCA, mid-cerebral artery; PSV, peak systolic velocity; MoM multiples of the median; SAT, systolic acceleration time; SD-DT, systolic deceleration-diastolic time; SD-DT/SAT, systolic deceleration-diastolic time to systolic acceleration time ratio.