Echocardiographic parameters of the rats at different time periods after hypothyroidism induction and LT4 treatment.

HR: heart rate; IVSTd: end-diastolic interventricular septum thickness; LVIDd: end-diastolic left ventricular diameter; LVPWd: end-diastolic posterior wall thickness; IVSTs: end-systolic interventricular septum thickness; LVIDs: end-systolic left ventricular diameter; LVPWs: end-systolic posterior wall thickness. Data are represented as the mean ± SEM. Statistical analysis was performed with two-way ANOVA tests followed by post hoc Tukey's multiple comparison tests. n = 10 rats in each group. *pvs. control as well as 7 and 12 weeks reverse; #pvs. PTU.Echocardiographic parameters of the rats at different time periods after hypothyroidism induction and LT4 treatment.