Key result
Cardiac MDCT angiography revealed 7 types and 6 subtypes of left atrial appendage morphology, with Type 2 being the most prevalent (76.6%), and demonstrated significant correlations between LAA morphology and left atrium volume.
Cross-Sectional (n=860)
Yes
The left atrial appendage exhibits substantial morphological variability, which may be important for guiding trans-catheter occlusion or ablation procedures.
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LAA morphological variants on MDCT may refine LA volume assessment in AF; leaves open prospective validation against clinical outcomes.
Li et al. (2015) conducted a cross-sectional in Left Atrial Appendage Morphology (n=860). Cardiac multidetector computed tomography angiography was evaluated on Left atrial appendage morphology types and dimensions. Cardiac MDCT angiography revealed 7 types and 6 subtypes of left atrial appendage morphology, with Type 2 being the most prevalent (76.6%), and demonstrated significant correlations between LAA morphology and left atrium volume.
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