Evaluation Of Cardiac Motion In The Type 2 Diabetes Mellitus Patients Using Velocity Vector Imaging

Objective To study the velocity and strain rate of cardiac diastolic motion using velocity vector imaging (VVI) in the type 2 diabetes mellitus patients. Methods 44 patients with T2DM divided into two groups: 21 patients without microangiopathy and 23 patients with microangiopathy and 22 objects as the normal control group were examined with VVI. The maximum velocity in early diastolic phase (Ve) and the maximum strain rate in early diastolic phase (SRe) of the left ventricular walls were measured. Results The Ve was lower in the group without microangiopathy than that in the control subjects in five segements. And in the group with microangiopathy, the Ve was lower in 12 segements(P<0.05). The SRe was lower in group without microangiopathy than that in the control subjects in 13 segements(P<0.05). Except middle segement of interventricular septum, the SRe was lower in the group with microangiopathy than that in the normal control subjects in every segements(P<0.05). The SRe was lower in the group with microangiopathy than that in the group without microangiopathy in posterior walls and basal lateral wall (P<0.05). Conclusions VVI can evaluate the diastolic function objectively in patients with T2DM and the SRe could become a useful index in assessing the diabetic cardiomyopathy.Partâ…¡Evaluation of cardiac systolic function in the type 2 diabetes mellitus patients Using Velocity Vector ImagingObjective To study the velocity,strain and strain rate of cardiac systolic motion using velocity vector imaging (VVI) in the type 2 diabetes mellitus patients. Methods 44 patients with T2DM divided into two groups: 21 patients without microangiopathy and 23 patients with microangiopathy and 22 objects as the normal control group were examined with VVI. The maximum velocity in systolic phase (Vs) and the maximum strain (Smax) and the maximum strain rate in systolic phase (SRs) of the left ventricular walls were measured. Results The Vs was lower in patients without microangiopathy than in the control subjects in seven segements. And in the patients with microangiopathy, the Ve was lower in eight segements(P<0.05). The Smax was lower in patients without microangiopathy than that in the control subjects in 5 segements, and in patients with microangiopathy Smax was lower in all the segements(P<0.05). Except middle segement of posterior wall, the SRs was lower in patients without microangiopathy than that in the control subjects in every segements(P<0.05). And the SRs was lower in the patients with microangiopathy than that in the normal control subjects in every segements(P<0.05). The Vs,Smax and SRs was lower in every segements of apex in the patients with microangiopathy than that in the patients without microangiopathy(P<0.05). Conclusions VVI can evaluate the systolic function objectively in patients with T2DM and the Smax and SRs could become a useful index in assessing the diabetic cardiomyopathy.