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Prevalence of Atrial Enlargement by CMR and ECG |
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| LAE |
RAE |
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| CMR Criteria |
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| Volume index ≥ 55 ml/m2 |
28% |
Volume index ≥ 55 ml/m2 |
11% |
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| ECG Criteria |
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| Any ECG criteria for LAE |
82% |
Any ECG criteria for RAE |
5% |
| P > 0.11s |
70% |
Inferior P waves > 2.5 mm |
1% |
| P mitrale |
3% |
Positive P wave in V1 > 1.5 mm |
4% |
| P axis < 30° |
9% |
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| NPTF-V1 > 0.04s·mm |
16% |
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| PPTF-aVL > 0.5 mm |
41% |
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CMR: Cardiovascular magnetic resonance. ECG: Electrocardiography. 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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