Figure 3.

Presentation of the four modules of the onsite training course and learning objectives: (A) assessment of the uterus and endometrium on the sagittal and transverse plane, measurement of the endometrial thickness, identification of the ovaries and the pouch of Douglas; (B) identification of the embryo and measurement of the crown-rump length (CRL) on the 10th week of gestation; (C) visualization of an ectopic pregnancy; (D) second-trimester ultrasound examination, including identification of the fetal lie and placenta position and performing fetal biometric measurements.