[Retracted] The Clinical Value of 3D Ultrasonic Measurement of the Ratio of Gestational Sac Volume to Embryo Volume in IoT-Based Prediction of Pregnancy Outcome

Figure 1

Various abnormal ultrasound findings of YS. (a) Lack of YS; (b) large YS; (c) small YS; (d) echo YS; (e) calcified YS; (f) irregular YS.

(a)

(b)

(c)

(d)

(e)

(f)