三維斑點(diǎn)追蹤成像技術(shù)評(píng)價(jià)左心室心肌致密化不全患者左心室收縮功能
[Abstract]:Aim: to evaluate the global and local systolic function of left ventricle in patients with (LVNC) with left ventricular densification by three dimensional speckle tracing imaging (3D-STE). Methods: 31 patients with LVNC (LVNC group) and 31 healthy volunteers (control group) were examined by ultrasound. The three-dimensional full-volume images were collected and analyzed. The indexes of conventional echocardiography and the regional area strain (GAS/AS) of the left ventricle were measured. Longitudinal strain (GLS/LS), radial strain (GRS/RS) and circumferential strain (GCS/CS) were compared. Pearson correlation analysis was used to test the correlation between GAS and each index. Results: 1 compared with the control group, left ventricular end-diastolic diameter (LVEDD), left ventricular end-diastolic volume (EDV), left ventricular end-systolic volume (ESV),) and left ventricular spherical index (SPI) increased in LVNC group. End diastolic septal thickness (IVSd),) left ventricular thick wall thickness (LVPWD),) ejection fraction (EF) decreased at the end of diastolic period (P0.01). 2 compared with control group, left ventricular GAS,GLS,GRS, in LVNC group was significantly lower than that in control group. GCS was decreased (P0. 01). The AS,LS,RS,CS of non-compact segment myocardium (apical and papillary muscle) in 3LVNC group was lower than that in the same level (P0. 05). There was a positive correlation between GAS and EF in 4LVNC patients, and there was a positive correlation between GAS and EDV,ESV,. SPI was negatively correlated. Conclusion: the global and local left ventricular systolic function in patients with LVNC is decreased, especially in non-compact segments. Echocardiographic 3D-STE can be used to quantitatively evaluate the left ventricular regional myocardial function in LVNC patients.
【作者單位】: 中國(guó)醫(yī)科大學(xué)附屬盛京醫(yī)院超聲科;
【分類號(hào)】:R542.2;R445.1
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