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Table 3 Comparison of ultrasonographic and hormonal parameters one week after FET between the pregnant and nonpregnant groups.

From: Assessment of endometrial and ovarian characteristics using three dimensional power Doppler ultrasound to predict response in frozen embryo transfer cycles

  Pregnant
(n = 12)
Nonpregnant
(n = 14)
P- value
Days after FET 6,3 ± 0,4 5,9 ± 0,4 0,539
Endometrial thickness (mm) 12,5 ± 0,6 10,6 ± 0,6 0,049
Endometrial Volume (ml) 4,3 ± 0,7 4,1 ± 0,9 0,925
Endometrial pattern triple line (n, %)    0.019
   Homoechogenic 1(8,3) 8(57,1)  
   Tripple line 11(91,7) 6(42,9)  
Dominant ovary Volume (ml) 15,3 ± 1,5 12,5 ± 1,8 0,255
Dominant ovary vascularization index (VI) % 10,5 ± 1,8 8,6 ± 1,63 0,446
Dominant ovary vascularization **(ml) 1,4 ± 0,2 0,9 ± 0,1 0.084
Nondominant ovary Volume (ml) 9,4 ± 1,5 8,2 ± 0,8 0,454
Nondominant ovary vascularization index(VI) % 3,3 ± 0,7 6,1 ± 1,3 0,072
Nondominant ovary vascularization **
(ml)
0,3 ± 0,1 0.5 ± 0,1 0,118
Progesterone one week after FET(nmol/l) 174,5 ± 68,0 92,3 ± 18,3 0,224
17-OHP one week after FET(nmol/l) 15,1 ± 2,1 8,3 ± 1,3 0,009
Estradiol one week after FET(nmol/l) 0,40 ± 0,06 0,25 ± 0,04 0,039
  1. Four patients missed the second set of measurements. The power Doppler mode was not applied at any time during the visit to investigate the pregnancy itself (the fetus or the trophoblastic tissue). Therefore, data concerning the fetus, gestational sac, or placenta do not include any power Doppler information.
  2. **Vascularization, volume multiplied with VI. Values are mean ± SEM or n (%). 17-OHP = 17 hydroxyprogesterone