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. 2014 Sep 20;16(1):71. doi: 10.1186/s12968-014-0071-3

Table 2.

Diastolic parameters

Normal diastolic function‡ (n = 62) Diastolic dysfunction‡ (n = 62) P
CMR mitral annulus sweep volume
Normalized peak sweep rate, early diastole (PSRE), s−1 7.72 ± 1.7 5.25 ± 1.38 <0.001*
Peak sweep rate, early diastole, cm3/s 117 ± 43 65 ± 28 <0.001*
Normalized peak sweep rate, atrial systole (PSRA), s−1 4.67 ± 1.38 6.56 ± 1.99 <0.001*
Peak sweep rate, atrial systole, cm3/s 70 ± 24 80 ± 29 0.031*
PSRE/PSRA ratio 1.82 ± 0.69 0.9 ± 0.44 <0.001*
Percentage sweep volume recovery, early diastole 69.09 ± 10.02 54.29 ± 12.37 <0.001*
Absolute sweep volume, early diastole, cm3 10.64 ± 4.1 6.83 ± 2.66 <0.001*
Absolute sweep volume/stroke volume, early diastole, % 11.17 ± 2.89 7.6 ± 2.21 <0.001*
Percentage sweep volume recovery, atrial systole 33.78 ± 9.92 49.1 ± 13.76 <0.001*
Absolute sweep volume, atrial systole, cm3 5.03 ± 1.72 6.01 ± 2.35 0.014*
Absolute sweep volume/stroke volume, atrial systole, % 5.41 ± 1.78 6.81 ± 2.24 0.014*
Normalized average sweep rate, early diastole, s−1 4.2 ± 1.02 2.53 ± 0.63 <0.001*
Normalized average sweep rate, mid-diastole, s−1 0.36 ± 0.71 0.87 ± 1.34 0.019*
Normalized average sweep rate, atrial systole, s−1 2.67 ± 0.94 3.88 ± 1.26 <0.001*
Sweep volume deceleration time (DTSV), ms 96.25 ± 36.56 144.19 ± 54.89 <0.001*
Sweep volume acceleration time (ATSV), ms 102.48 ± 35.03 114.2 ± 41.09 0.066†
50% Diastolic sweep volume recovery time (DSVRT50), % 15.58 ± 4 24.97 ± 11.03 <0.001*
Echocardiography
E, cm/s 84.47 ± 22.22 75.81 ± 25.08 0.020*
A, cm/s 59.45 ± 17.75 69.9 ± 22.7 0.005*
E/A 1.51 ± 0.51 1.22 ± 0.67 <0.001*
Deceleration time, ms 219 ± 48 230 ± 47 0.200
e′ septal, cm/s 10.14 ± 2.22 6.05 ± 1.4 <0.001*
a′ septal, cm/s 8.25 ± 1.89 8.98 ± 2.44 0.064†
e′/a′ septal 1.3 ± 0.41 0.75 ± 0.34 <0.001*
e′ lateral, cm/s 14.59 ± 3.95 8.1 ± 2.56 <0.001*
a′ lateral, cm/s 9.51 ± 2.95 10.4 ± 3.75 0.141
e′/a′ lateral 1.7 ± 0.71 0.89 ± 0.44 <0.001*
E/e′ (average) 7.1 ± 2.02 11.47 ± 6.26 <0.001*

Data expressed as mean ± SD.

Peak and average sweep rates were normalized to end-systolic sweep volume. Percentage sweep volume recovery measured the proportion of recovery in reference to end-systolic sweep volume. 50% diastolic sweep volume recovery time was normalized to RR interval.

E = peak early mitral inflow velocity; A = peak late mitral inflow velocity; e′ = early diastolic mitral annular velocity; a′ = late diastolic mitral annular velocity; MA = mitral annulus.

*P < 0.05, †P < 0.10, ‡Patient classification based on echocardiography reference.