Key result
Male patients had significantly greater maximum right atrial appendage volume (13.26 vs 10.68 mL, P=0.003) and ejection volume compared to female patients.
Why the study?
The study was conducted to assess the volume and function of the right atrial appendage in patients with sinus rhythm using 256-slice spiral CT angiography.
Observational (n=60)
No
Absolute Event Rate: 13.26% vs 10.68%
p-value: p=0.003
Multi-phase 3D CT angiography can effectively evaluate the volume and function of the right atrial appendage, demonstrating that RAA volume changes synchronously with the right atrium and correlates with body weight and body surface area.
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RAA volume reference data from CT in sinus rhythm may inform imaging interpretation; leaves open prognostic or therapeutic relevance.
Liu et al. (2025) conducted an observational in Normal sinus rhythm (n=60). Male sex vs. Female sex was evaluated on Maximum right atrial appendage volume (RAAVmax) (p=0.003). Male patients had significantly greater maximum right atrial appendage volume (13.26 vs 10.68 mL, P=0.003) and ejection volume compared to female patients.
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