Table 3.
Statistical Correlation between ST Elevations, Q Waves, and Inverted T Waves at Three Different Time Points, and Cardiac Magnetic Resonance Imaging, a Positive Finding Refers to at Least One Affected Lead
| Time of ECG | Sensitivity | Specificity | PPV | NPV |
|---|---|---|---|---|
| Admission | ||||
| ST elevation | 79 | 42 | 58 | 67 |
| Q waves | 24 | 91 | 73 | 55 |
| T‐wave inversion | 15 | 73 | 36 | 46 |
| MRI Day | ||||
| ST elevation | 79 | 67 | 70 | 76 |
| Q waves | 39 | 82 | 68 | 58 |
| T‐wave inversion | 52 | 58 | 55 | 54 |
| Discharge | ||||
| ST elevation | 73 | 77 | 75 | 74 |
| Q waves | 55 | 79 | 72 | 63 |
| T‐wave inversion | 67 | 61 | 63 | 65 |