Ability of focused abdominal sonography for trauma (FAST) to detect intraabdominal injuries after blunt trauma
| Parameter | Technique, %* (and 95% CI) | |
|---|---|---|
| HHFAST | FFAST | |
| Sensitivity | 63.8 (52.2–74.2) | 52.2 (39.7–64.6) |
| Specificity | 99.1 (96.9–99.0) | 96.6 (93.2–98.6) |
| Positive predictive value | 96.2 (87.0–99.5) | 83.3 (68.6–93.0) |
| Negative predictive value | 88.8 (84.4–92.4) | 86.2 (81.1–90.4) |
| Accuracy | 90.1 (86.2–93.2) | 85.8 (81.1–89.7) |
| Likelihood ratio | ||
| Positive test | 74.3 (18.5–298.1) | 15.4 (7.2–33.1) |
| Negative test | 0.37 (0.27–0.49) | 0.49 (0.38–0.64) |
CI = confidence interval, FFAST = formal FAST, HHFAST = hand-held FAST.
↵* Except for ratios