First-Trimester Ultrasound by Jacques S. Abramowicz

Author:Jacques S. Abramowicz
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

Fig. 12.7Ductus venosus time-averaged maximum velocity (TAMXV) measurements according to crown-rump length in 198 fetuses presented with 5th, 50th and 95th centiles. The equation for the 50th centile is y = 0.1174x + 14.95 and for the standard deviation is SD = 0.0342x + 3.9375. Reprinted from Prefumo F, Risso D, Venturini PL, De Biasio P. Reference values for ductus venosus Doppler flow measurements at 10–14 weeks of gestation. Ultrasound Obstet Gynecol. 2002;20(1):42–6, with permission from John Wiley & Sons

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