Table 2.
Number of diagnostic-quality images, handheld Butterfly vs cart-based GE ultrasound device.
| Component of UHP exam | Butterfly N = 29 N (%, 95% CI) |
GE N = 29 N (%, 95% CI) |
Absolute difference 95% CI | P-value* |
|---|---|---|---|---|
| PLAX | 27 (93, 77 – 99) | 28 (97, 82 – 100) | −3 (−15 – 8) | 1.00 |
| 4C View | 26 (90, 73 – 98) | 25 (86, 68 – 96) | 3 (−13 – 20) | 1.00 |
| IVC | 23 (79, 60 – 92) | 24 (82, 64 – 94) | −3 (−23 – 17) | 1.00 |
| RUQ | 29 (100, 88 – 100) | 29 (100, 88 – 100) | 0 (0 – 0) | – |
| LUQ | 29 (100, 88 – 100) | 29 (100, 88 – 100) | 0 (0 – 0) | – |
| Bladder | 29 (100, 88 – 100) | 29 (100, 88 – 100) | 0 (0 – 0) | – |
| Aorta | 25 (86, 68 – 96) | 23 (79, 68 – 96) | 7 (−12 – 26) | 0.73 |
| RL | 29 (100, 88 – 100) | 29 (100, 88 – 100) | 0 (0 – 0) | – |
| LL | 29 (100, 88 – 100) | 29 (100, 88 – 100) | 0 (0 – 0) | – |
UHP, ultrasound hypotension protocols; CI, confidence interval; PLAX, parasternal long axis; 4C, four chamber; IVC, inferior vena cava; RUQ, right upper quadrant; LUQ, left upper quadrant; RL, right leg; LL, left leg.