True/False MCQ · Obstetric Ultrasound
Regarding MRI and Doppler in pregnancy, which of the following statements are TRUE?
- AMRI is usually avoided in the first trimester
- BMRI uses ionising radiation
- CGadolinium does not cross the placenta
- DGadolinium is not recommended in pregnancy
- EUmbilical artery Doppler gives indirect information about placental function
Show answers and explanation
- A. True
- B. False: MRI does not use ionising radiation.
- C. False: Gadolinium does cross the placenta.
- D. True
- E. True
MRI and Doppler
- MRI avoided in 1st trimester; gadolinium not recommended; umbilical artery Doppler reflects placental function.
Why A is true
MRI is usually avoided in the first trimester.
Why B is false
MRI does not use ionising radiation.
Why C is false
Gadolinium does cross the placenta.
Why D is true
Gadolinium is not recommended in pregnancy.
Why E is true
Umbilical artery Doppler gives indirect information about placental function.
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