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Table 2 The detection rate of ventriculoarterial connections by different methods
| CHD (n) | 2D (n) | 4D-1 (n) | 4D-2 (n) | Combined (n) |
|---|---|---|---|---|
| 18–28 GW | ||||
| TGA (20) | 70% (14) | 50% (10) | 100%# (20) | 100%# (20) |
| DORV (15) | 80% (12) | 53.3% (8) | 80% (12) | 80% (12) |
| TOF (26) | 76.9% (20) | 57.7% (15) | 80.8% (21) | 96.2%* (25) |
| TCA (10) | 60% (6) | 30% (3) | 80% (8) | 100%* (10) |
| 29–36 GW | ||||
| TGA (9) | 66.7% (6) | 22.2% (2) | 55.6% (5) | 66.7% (6) |
| DORV (7) | 85.7% (6) | 28.6% (2) | 42.9% (3) | 85.7% (6) |
| TOF (10) | 80% (8) | 20% (2) | 50% (5) | 80% (8) |
| TCA (4) | 75% (3) | 0 | 25% (1) | 75% (3) |
