|
Accuracy of ECG criteria for Left and Right Atrial Enlargement as Detected by CMR |
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| ECG Criteria |
Sensitivity (%) |
Specificity (%) |
PPV (%) |
NPV (%) |
|
|
||||
| LAE |
||||
|
|
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| Any ECG Criteria for LAE |
90 |
21 |
31 |
84 |
| P > 0.11s |
84 |
35 |
34 |
85 |
| P mitrale |
8 |
99 |
86 |
74 |
| P axis < 30° |
8 |
90 |
23 |
71 |
| NPTF-V1 > 0.04s·mm |
37 |
88 |
47 |
76 |
| PPTF-aVL > 0.5 mm |
44 |
60 |
30 |
73 |
|
|
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| RAE |
||||
|
|
||||
| Any ECG Criteria for RAE |
17 |
96 |
33 |
91 |
| Inferior P waves > 2.5 mm |
7 |
100 |
67 |
90 |
| Positive P wave in V1 > 1.5 mm |
10 |
96 |
25 |
90 |
|
CMR: Cardiovascular magnetic resonance. ECG: Electrocardiography. PPV: Positive predictive value. NPV: Negative predictive value. LAE: Left atrial enlargement. RAE: Right atrial enlargement. P mitrale: Notched P wave with interpeak duration > 0.04s. NPTF-V1 > 0.04s·mm: Area of negative P terminal force in lead V1 > 0.04s·mm. PPTF-aVL: Positive P terminal force in lead aVL. Inferior P waves: P wave in any of the leads II, III, or aVF. | ||||
Tsao et al. Journal of Cardiovascular Magnetic Resonance 2008 10:7 doi:10.1186/1532-429X-10-7 |
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