1st April 2022

A 28-year-old man and his wife attend a pre-pregnancy counselling appointment

A 28-year-old man and his wife attend a pre-pregnancy counselling appointment. He had transposition of the great arteries (TGA) which was fixed surgically when he was a month old. He would like to know if congenital heart defects can be diagnosed in utero.

Which of the following investigations would be used in this case to screen for TGA prenatally? 

Select the SINGLE most appropriate option from the list below. Select ONE option only.