PMC6159302_01
Normal hypocoiled cord at 21 weeks gestation.
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The umbilical cord was a three-vessel cord with absence of coiling (Figure 1).
Normal intercoil distance (umbilical coiling index 0.55) at 36 weeks GA. GA, gestational age.
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Colour imaging revealed an uncoiled umbilical cord (Figure 2).
Hypocoiled umbilical cord at 32 weeks pregnancy.
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Hypocoiled umbilical cord in the lower segment of the uterus at 36 weeks pregnancy. pl, placenta.
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Measurement of intercoil distance (umbilical cord index 0.86) in a hypercoiled umbilical cord.
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