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Student exercise
Role of ultrasound scans -
First trimester 6-12 weeks
Second trimester 18-20 weeks
Third trimester 28-42 weeks
First trimester
Intrauterine pregnancyViabilityGestational age / DatingNumber of fetusesChorionicityDown’s screeningUterine abnormalitiesPelvic abnormalities
Second trimester (18-20 weeks)
Viability DatingMultiple pregnancyFetal abnormalityLiquorPlacental sitePlacental perfusion
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