TABLE 7.
Accuracy and precision in studies with cardiac shunts.
| Authors/Year | Unit of measurement |
n measurements |
Cardiac defect | Mean* | Bias ** Mean ± SD |
LOA (precision) | PE |
| Cardiac surgical intervention | |||||||
| Grollmuss (23) | ml | 240 | TGA switch surgery | 3.7 | 0.27 | ±1.06 | 29.0 |
| Weisz (29) | ml | 78 | PDA ligation | 1.25 | −0.6 (39%) | ±0.75 | 58.0 |
| Physiological shunt | |||||||
| Blohm (31) | ml | 12 | PDA only | 4.1 | −0.8 ± 1.73 | ±0.98 | 72.1 |
| 63 | PDA + PFO | −1.1 ± 1.58 | ±1.09 | 56.3 | |||
| 125 | PFO only | −0.6 ± 1.11 | ±0.59 | 40.2 | |||
| Van Wyk (34) | ml/kg/min | 304 | PDA | 124.4 | −28.7 ± 43.7 | ±78.1 | 74.4 |
| Torigoe (30) | ml/min | 23 | PDA ≥ 1.5 mm | 317 | 5.5 | ±66.2 | 21.0 |
| 58 | PDA < 1.5 mm | −36.1 | ±119.5 | 38.6 | |||
| Hassan (35) | ml/min | 14 | DFLPA > 30 cm/s | 295.5 | −167 | 203.8 | 69 |
*Mean = (TEBT + TTE)/2. **Bias = TEBT – TTE. Bold data indicates calculated data or data estimated from provided graphs. DFLPA, end diastolic flow in left pulmonary artery; LOA, limits of agreement; PDA, patent ductus arteriosus; PE, percentage error; PFO, patent foramen ovale; SD, standard deviation; TGA, transposition of great arteries.