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为评价 O 波振幅和等容舒张期(A_2—O)时限的意义和诊断心脏舒张功能的价值,我们对一组患者和健康体检者使用心阻抗血流图法测定 O 波和 A_2—O时间,表明同时具有 O 波增大和 A_2—O延长对心脏舒张障碍诊断有意义。材料和方法
To evaluate the significance of O-wave amplitude and duration of diastolic phase (A 2 -O) and the value of diagnosis of diastolic function, we used a group of patients and healthy subjects to measure O wave and A 2-O time , Indicating that both O wave increases and A_2-O prolongation of diastolic dysfunction diagnosis. Materials and Method