Table 1 Sensitivity, specificity, positive and negative predictive values
From: Feasibility and accuracy of point-of-care pocket-size ultrasonography performed by medical students
Pathology to detect | N Pathology (N total) | Sensitivity % (95% CI) | Specificity % (95% CI) | PPV % (95% CI) | NPV % (95% CI) |
|---|---|---|---|---|---|
All cardiovascular | 156 (468) | 95.5 (90.9-97.9) | 92.4 (83.7-96.9) | 87.0 (75.3-93.4) | 97.6 (95.0-98.8) |
Cardiac only | 115 (338) | 98.3 (93.9-100) * | 90.8 (78.8-96.7) | 84.5 (62.6-95.6) | 99.0 (96.4-99.9) * |
IVC | 20 (71) | 84.5 (57.2-96.3) | 100 (93.0-100) * | 100 (80.5-100)* | 94.8 (82.9-98.7) |
Lungs | 21 (59) | 90.5 (68.8-97.6) | 94.7 (82.2-99.4)* | 90.5 (69.6-98.6) * | 94.7 (82.2-99.2)* |
All abdominal | 104 (453) | 92.6 (83–97.1) | 92.2 (82.9-96.9) | 80.1 (63.3-91.0) | 97.5 (92.6-99.2) |
AA | 12 (74) | 91.7 (61.5-98.6)* | 100 (94.2-100)* | 100 (71.3-100)* | 98.4 (91.5-99.6)* |
Renal system | 48 (282) | 89.9 (77.2-95.9) | 93.3 (82.5-98.0) | 73.1 (48.4-89.6) | 97.5 (85.7-99.7) |
Gallbladder | 35 (84) | 94.3 (80.8-99.1)* | 85.6 (71.5-93.4) | 82.4 (63.7-93.1) | 95.5 (84.5-99.3* |
Abdominal free fluid | 9 (14) | 100 (66.2-100)* | 100 (48.0-100)* | 100 (66.2-100)* | 100 (48.0-100)* |