Table 3.
Summary of velocimetry data and comparisons between the systemic LV and RV, as well as summaries of flows for breath-held vs. free breathing. All values reported as Mean±S.D.
| Flows in l/min/m2 Ratios as fraction |
RV | LV | RV vs. LV |
Breath-held | Free breathing |
Breath-hold vs. Free |
|---|---|---|---|---|---|---|
| n | 62 | 37 | 71 | 34 | ||
| Mean±S.D. | Mean±S.D. | p-value | Mean±S.D. | Mean±S.D. | p-value | |
| Age | 11.6±5.8 | 12.5±6.1 | 0.4 | 12.7±5.9 | 9.4±5.8 | 0.01 |
| BSA | 1.15±0.47 | 1.26±0.44 | 0.27 | 1.2±0.5 | 1.0±0.5 | 0.02 |
| (IVC+SVC)/BSA | 2.9±0.8 | 2.8±1.2 | 0.66 | 2.7±1.0 | 3.0±0.9 | 0.13 |
| (RPA+LPA)/BSA | 2.4±0.8 | 2.5±0.8 | 0.74 | 2.5±0.8 | 2.4±0.7 | 0.92 |
| IVC/(IVC+SVC) | 0.61±0.11 | 0.58±0.16 | 0.23 | 0.60±0.14 | 0.57±0.15 | 0.24 |
| RPA/(LPA+RPA) | 0.55±0.13 | 0.52±0.14 | 0.34 | 0.53±0.13 | 0.57±0.14 | 0.17 |
| (RPA+LPA) / (IVC+SVC) |
0.87±0.24 | 1.2±1.7 | 0.13 | 1.05±1.2 | 0.84±0.2 | 0.31 |
| n | 50 | 25 | 46 | 32 | ||
| Aortic Flow/BSA | 3.5±1.6 | 3.7±1.3 | 0.67 | 3.5±1.8 | 3.7±0.95 | 0.61 |
| (IVC+SVC) / Ao | 0.93±0.5 | 0.82±0.3 | 0.32 | 0.90±0.6 | 0.86±0.2 | 0.69 |
| (RPA+LPA) / Ao | 0.82±0.6 | 0.72±0.2 | 0.43 | 0.84±0.7 | 0.68±0.2 | 0.18 |