Mitral Annulus Displacement Measured by Two-Dimensional Speckle Tracking Imaging to Assess the Left Ventricular Longitudinal Systolic Function in Coronary Heart Disease

作者：Thapa, Pooja; Xing, Yuan Yuan; Li, Yu Hong^*

来源：Journal of Clinical Ultrasound, 2014, 42(9): 544-549.

DOI：10.1002/jcu.22181

• speckle tracking echocardiography
• left ventricle
• systolic function
• coronary artery disease
• mitral annulus displacement

AimTo assess the clinical utility of measuring mitral annulus displacement (MAD) by two-dimensional speckle tracking for the rapid evaluation of left ventricular longitudinal systolic function in patients with coronary heart disease (CHD).
MethodsLeft ventricular longitudinal systolic function was evaluated by MAD using speckle tracking echocardiography in 30 healthy volunteers (controls) as well as in 30 patients with mild, 30 patients with moderate, and 30 patients with severe CHD. All participants had their apical four-chamber and two-chamber view echocardiographic images recorded. Left ventricular end-diastolic volume, left ventricular end-systolic volume, and left ventricular ejection fraction were calculated by the biplane Simpson method. MAD of interventricular septum (MADsep), left ventricular lateral wall (MADlat), and the middle point of the mitral annulus (MADmid) were measured offline with speckle-tracking echocardiography. MADmid% was defined as MADmid divided by left ventricular end-diastolic diameter.
ResultsMADmid% was 16.91.9, 11.8 +/- 3.2, 11.8 +/- 2.9, and 10.3 +/- 3.6, respectively, in controls and in patients with mild, moderate, and severe CHD. All MAD indexes were lower in patients with moderate or severe CHD than in controls or patients with mild CHD.
ConclusionsMAD is an early and rapid index for the assessment of left ventricular longitudinal systolic function in patients with different degrees of coronary artery disease.

• 出版日期2014-12
• 单位锦州医科大学