Student Competency for Midtrimester Obstetrics Scan upon Completion of the Master’s Degree in Medical Sonography

Table 1

Criteria for the score-based objective evaluation of the quality of the biometric images.

		Diagram	Ultrasound image
BPD & HC	Symmetrical plane
	Plane showing the thalami
	Plane showing the cavum septi pellucidi
	Cerebellum not visible
	Head plane occupying more than half the total image size
	Calipers and dotted ellipse placed correctly
AC	Symmetrical plane
	Plane showing the portal sinus
	Plane showing the stomach bubble
	Kidneys not visible in the total image
	Abdomen plane occupying more than half the total image size
	Calipers and dotted ellipse placed correctly
FL	Both ends of bone clearly visible
	Femur occupying more than half the total image
	<45° angle to the horizontal
	Calipers placed correctly