Table 4.
Sensitivity and specificity of parameters
| Sensitivity | Specificity | PPV | NPV | |
|---|---|---|---|---|
| Parameters | ||||
| LAD ≥42 mm | 0.60 | 0.70 | 0.19 | 0.94 |
| LAAF <46.9 cm/s | 0.40 | 0.84 | 0.22 | 0.93 |
| SEC | 0.31 | 0.92 | 0.31 | 0.92 |
| LAD and LAAF | 0.31 | 0.95 | 0.42 | 0.93 |
| LAD and SEC | 0.17 | 0.96 | 0.35 | 0.91 |
| All three factors | 0.17 | 0.99 | 0.60 | 0.91 |
LAD, left atrial dimension in transthoracic echocardiography; LAAF, left atrial appendage flow in transesophageal echocardiography; SEC, spontaneous echo contrast in transesophageal echocardiography; PPV, positive predictive value; NPV, negative predictive value. All three factors: LAD, LAAF, and SEC.