关键词: 心耳, 成像, 三维, 卒中, 相关性

Abstract: Objective　To investigate the correlation between left atrial appendage morphology and cardioembolic stroke.Methods　102 patients who had coronary artery CT angiography （CTA） and brain CT or MRI in Second Artillery General Hospital of PLA from December 2014 to August 2015 were enrolled.According to the general clinical diagnosis of specialist physicians,the patients were divided into cardioembolic stroke group of 66 cases and non-stroke group of 36 cases.CT three-dimensional reconstruction was applied to separate left atrial appendage image,and observed its morphology and morphology of its opening,and measured its volume and maximum diameter of its opening.Results　There was significant difference in age,prevalence of diabetes,coronary heart disease prevalence and volume of left atrial appendage between two groups （P<0.05）;while there was no significant difference in gender,prevalence of hypertension,and maximum diameter of left atrial appendage opening （P>0.05）.The morphological distributions of left atrial appendage in two groups were significantly different （P<0.05）;while the morphological distributions of left atrial appendage openings in two groups were not significantly different （P>0.05）.Age,diabetes,coronary heart disease,volume of left atrial appendage,and morphology of left atrial appendage were positively correlated with the occurrence of cardioembolic stroke （values of rs were 0.329,0.291,0.256,0.242,and 0.319 respectively,P<0.05）.Conclusion　Volume and morphology of left atrial appendage are correlated with the occurrence of cardioembolic stroke.

Key words: Atrial appendage, Imaging,three-dimensional, Stroke, Correlation