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Table 2 Doppler Measurements in Both Study Groups (mean ± SD)

From: Clinical value of myocardial performance index in patients with isolated diastolic dysfunction

  Control DDI Patients 95% IC p
E wave (m/s) 0.77 ± 0.16 0.62 ± 0.14 0.091 to 0.21 < 0.001
A wave (m/s) 0.47 ± 0.09 0.82 ± 0.15 −0.40 to - 0.30 < 0.001
E/A ratio 1.67 ± 0.36 0.76 ± 0.10 0.80 to 1.0 < 0.001
DT (ms) 164 ± 17 250 ± 38 −97.6 to −74.1 < 0.001
S septal (cm/s) 7.8 ± 1.2 6.3 ± 1.2 0.99 to 1.9 < 0.001
e’ septal (cm/s) 10 ± 1.6 5.1 ± 1.3 4.6 to 5.7 < 0.001
a’ septal (cm/s) 9.1 ± 1.3 10 ± 1.4 −1.5 to - 0.43 < 0.001
e’/a’ septal 1.1 ± 0.24 0.51 ± 0.12 0.56 to 0.72 < 0.001
E/e’ septal 7.7 ± 1.5 13.1 ± 4.6 −6.8 to −4.1 < 0.001
ET (ms) 308 ± 19 308 ± 27 −0.15 ± 4.6 0.98
IVRT (ms) 80 ± 17 105 ± 21 −32 to − 17 < 0.001
ICT (ms) 35 ± 17 32 ± 19 − 4.7 to 9.5 0.51
PWD-MPI 0.37 ± 0.08 0.45 ± 0.11 − 0.12 to − 0.036 < 0.001
S lateral (cm/s) 11 ± 2.3 9.3 ± 2.1 0.39 to 2.2 0.006
e’ lateral (cm/s) 15 ± 3.2 8.3 ± 2.6 6.0 to 8.5 < 0.001
a’ lateral (cm/s) 9.8 ± 2.2 13.6 ± 3.5 −5.0 to −2.7 < 0.001
e’/a’ lateral 1.7 ± 0.55 0.62 ± 0.19 0.87 to 1.2 < 0.001
E/e’ lateral 5.2 ± 1.4 8.3 ± 3.6 −4.2 to − 2.0 < 0.001
E/e’ average 6.4 ± 1.4 10.8 ± 3.8 −5.5 to − 3.2 < 0.001
t-ET (ms) 317 ± 20 314 ± 28 − 6.6 to 13.2 0.51
t-IVRT (ms) 76 ± 19 109 ± 27 − 43 to − 24 < 0.001
TDI-MPI 0.40 ± 0.09 0.49 ± 0.14 − 0.13 to − 0.035 < 0.001
  1. DDI, grade-I diastolic dysfunction patients; DT, deceleration time of the E wave; S, peak systolic annular velocity; e’, early mitral annulus diastolic velocity; a’, late diastolic velocity; E/e’, relationship between the velocity of the early mitral filling E wave and the e’ wave; ET, ejection time; ICT, isovolumetric contraction time; IVRT, isovolumetric relaxation time; MPI, myocardial performance index; t-ET, tissue Doppler-derived ejection time; t-IVRT, tissue Doppler-derived isovolumetric relaxation time; t-ICT, tissue Doppler-derived isovolumetric contraction time; TDI-MPI, pulsed-wave tissue Doppler-derived myocardial performance index