Fetal Aortic Blood Flow Velocity and Power Doppler Profiles in the First Trimester: A Comprehensive Study Using High-Definition Flow Imaging.

In Figure 3 G, where Y represents Aortic IFI, the IFI of the aorta demonstrates a decreasing trend with gestational age.

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Similarly, IFI also showed an inverse correlation with gestational age, although it did not reach statistical significance ( Figure 3 G).

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