Echocardiographic assessment of embryonic and fetal mouse heart development: a focus on haemodynamics and morphology.

Between 12.5 and 17.5 dpc the peak-A wave of the developing MV annulus increased significantly (0.33 ± 0.001 m/s versus 0.42 ± 0.014 m/s; P < 0.0001) whereas that of the TV also showed an increasing trend, albeit not significant (0.37 ± 0.018 m/s versus 0.41 ± 0.019 m/s; P = NS).

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Furthermore, we did not find a decreasing trend of both LV and RV FS% as was recently demonstrated during human fetal life [ 28 , 29 ].

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We showed a trend towards a smaller RVID as compared to the LVID at all stages, which was not mentioned in other studies. 4.1.

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