Mitral Valve E/A Ratio
Rizzo G, Arduini D, Romanini
C, Mancuso S.
Doppler echocardiographic assessment of
atrioventricular velocity
waveforms in normal and
small-for-gestational-age fetuses.
Br J Obstet Gynaecol
1988;95:65-69
GA (wks) |
50th Percentile |
5th Percentile |
95th Percentile |
20 |
0.59 |
0.4 |
0.78 |
21 |
0.6 |
0.41 |
0.79 |
22 |
0.62 |
0.43 |
0.81 |
23 |
0.64 |
0.45 |
0.82 |
24 |
0.65 |
0.46 |
0.84 |
25 |
0.67 |
0.48 |
0.85 |
26 |
0.68 |
0.49 |
0.86 |
27 |
0.69 |
0.51 |
0.88 |
28 |
0.7 |
0.52 |
0.89 |
29 |
0.72 |
0.53 |
0.9 |
30 |
0.73 |
0.54 |
0.91 |
31 |
0.74 |
0.55 |
0.92 |
32 |
0.75 |
0.56 |
0.93 |
33 |
0.76 |
0.57 |
0.94 |
34 |
0.77 |
0.58 |
0.95 |
35 |
0.78 |
0.59 |
0.96 |
36 |
0.78 |
0.6 |
0.97 |
37 |
0.79 |
0.6 |
0.97 |
38 |
0.79 |
0.61 |
0.98 |
39 |
0.8 |
0.61 |
0.99 |
40 |
0.81 |
0.62 |
0.99 |