Application value of tissue mitral annular displacement in evaluating left atrial function in coronary heart disease patients with different levels of coronary artery lesions
Application value of tissue mitral annular displacement in evaluating left atrial function in coronary heart disease patients with different levels of coronary artery lesions[J]. Journal of Clinical Ultrasound in Medicine, 2023,25(9).
Application value of tissue mitral annular displacement in evaluating left atrial function in coronary heart disease patients with different levels of coronary artery lesions[J]. Journal of Clinical Ultrasound in Medicine, 2023,25(9).DOI:
Objective To explore the application value of tissue mitral annular displacement technique (TMAD) in evaluating left atrial function in coronary heart disease patients with different levels of coronary artery lesions.Methods According to Gensini score based on the coronary angiography results
88 patients with suspected coronary heart disease were divided into control group(Gensini score =0,n = 30)
mild lesion group(Gensini score 0~25,n = 30)and moderate to severe lesion group(Gensini score ≥25,n = 28). Firstly
left atrial total ejection fraction(LATEF)
left atrial passive ejection fraction(LAPEF) and left atrial active ejection fraction(LAAEF)were obtained by biplane Simpson method. Left atrial filling period displacement(TMAD-D)
left atrial passive ejection period displacement(TMAD-P)and left atrial systolic period displacement(TMAD-S)were obtained by TMAD technique . The differences among the three groups were compared. Then
the correlation between TMAD-D and LATEF
TMAD-P and LAPEF
TMAD-S and LAAEF,and the correlation between TMAD parameters and Gensini score were analyzed. Finally
the ROC curve was drawn and the diagnostic value of TMAD parameters for moderate to severe coronary artery disease was discussed.Results Compared with the control group
LATEF
LAPEF
TMAD-D and TMAD-P in the mild lesion group decreased
LATEF
LAPEF
LAAEF
TMAD-D
TMAD-P and TMAD-S in the moderate to severe lesion group decreased
compared with the mild lesion group
LATEF
LAPEF
LAAEF
TMAD-D
TMAD-P and TMAD-S in the moderate to severe lesion group decreased (all P <0.05). In the lesion group
TMAD-D and LATEF
TMAD-P and LAPEF
TMAD-S and LAAEF were positively correlated (r = 0.856
0.847
0.774
respectively
all P <0.001). In the lesion group
TMAD-D
TMAD-P and TMAD-S were negatively correlated with Gensini score (r = -0.765
-0.551 and -0.531
respectively
all P <0.001). The area under the curve(AUC)of TMAD-D
TMAD-P and TMAD-S in the diagnosis of moderate to severe coronary artery disease were 0.951
0.841 and 0.835
respectively (all P <0.001). Conclusion TMAD technique is a simple and reliable method to evaluate left atrial function in coronary heart disease patients with different levels of coronary artery lesions
and it can provide certain clinical value for non-invasive evaluation of the severity of coronary artery disease.