Left Atrial to Ventricular Volume Ratio: A Novel Imaging Biomarker Enhancing Detection of Atrial Cardiopathy and Stroke Risk

Highlight

• The left atrial to ventricular volume ratio (LA:LV ratio) outperforms the conventional left atrial volume index (LAVi) in predicting ischemic stroke and transient ischemic attack risk.
• LA:LV ratio correlates more strongly with cognitive function decline than LAVi, indicating its potential role in brain health monitoring.
• In ischemic stroke patients, LA:LV ratio has higher diagnostic accuracy for identifying atrial fibrillation/flutter as stroke etiology compared to LAVi.
• This novel marker may enhance early detection of atrial cardiopathy, improving prophylactic strategies against embolic stroke.

Study Background