Evaluation of left ventricular systolic function in patients with severe aortic stenosis with ejection fraction by three-dimensional spot tracking technique
Abstract：Objective To evaluate the effect of three-dimensional spot tracking technique on left ventricular systolic function in patients with severe aortic stenosis with normal ejection fraction.Methods A total of 80 patients with severe aortic stenosis diagnosed with normal ejection fraction between our hospital from July 2015 to May 2017 were selected as the case group,also selected in the same period in my hospital for physical examination of 80 patients as a control.The heart of the patient was scanned using a three-dimensional ultrasound spot technique,and the results were evaluated.Results The case group and the control group of patients with left ventricular end diastolic diameter[the case group(47.78±3.19)mm,the control group(47.73±2.59)mm],left ventricular end systolic diameter[the case group(27.05±2.15)mm,the control group(26.87±2.13)mm],left ventricular ejection fraction[the case group(60.49±1.96)％,the control group(60.57±2.02)％] data difference was not statistically significant (P＞0.05);Interventricular septal thickness [the case group (12.70±0.85)mm,the control group (7.83±0.84)mm],left ventricular posterior wall diastolic thickness [the case group (10.56±0.73)mm,the control group (7.17±0.69)mm] were higher than the control group;left ventricular global systolic strain patients [the case group(15.17±1.21)％,the control group (20.15± 1.17)％],left ventricular the overall radial strain [the case group (27.49±4.73)％,the control group(38.05±5.40)％],three-dimensional strain[the case group(32.55±4.77)％,the control group (41.97±4.50)％] were lower than the control group,left ventricular global circumferential strain[the case group (30.24±1.72)％,the control group (24.81±1.66)％] and left ventricular area strain [the case group (45.27 ± 1.91)％,the control group (41.47± 1.46)％] were higher than the control group (P＜0.05).The discriminant analysis of patients using conventional echocardiography and three-dimensional speckle tracking technique was 85.31％ and 100％.Conclusion Three-dimensional ultrasound spot tracking technology has a unique advantage in the normal ejection fraction of severe aortic stenosis in patients with left ventricular myocardial systolic function evaluation,you can distinguish between some patients and normal people,and the diagnosis and treatment of patients in this category is of great significance,it is worth to promote the clinical scope.
Keywords：Ultrasound spot tracking techniqueAortic stenosisMyocardial contraction
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 27-31 )