WEEK 5 OF GESTATION

 

 

 

Normal video at 5 weeks of gestation - CRL = 4mm

 

 

 

 

 

 

 

 

 

4+5 weeks

        Gestational sac

        Yolk sac not visible

 

 

 

 

 

5+1 weeks

        Gestational sac

        Yolk sac visualized.

 

 

 

 

 

REFERENCES

  1. Schats R, Jansen AM, Wladimiroff JW. Embryonic heart activity: appearance and development in early human pregnancy. Br J Obstet Gynaecol 1990;97:984-994.
  2. Levi CS, Lyons EA, Zheng XH et.al. Endovaginal ultrasound: demonstration of cardiac activity in embryos less than 5mm in crown-rump length. Radiology 1990;176:71-74.