Radiology in obstetric

Radiology in obstetric
Ultrasound
Ultrasound in the investigation of choice
No biological damage have been yet attributed it its use in obstetrical practice
No fetal abnormality was detected during pregnancy over the several decades that the teqnique has been in use

Uses of US IN PREGNANCY

1-Diagnosis and confirmation of early pregnancy.
The gestational sac can be visualized as early as four and a half weeks of gestation and the yolk sac at about five weeks. The embryo can be observed and measured by about five and a half weeks.

2-Vaginal bleeding in early pregnancy.
The viability of the fetus can be documented in the presence of vaginal bleeding in early pregnancy. A visible heartbeat could be seen and detectable by pulsed Doppler ultrasound by about 6 weeks and is usually clearly detectable by 7 weeks.
Missed abortions and blighted ovum will usually give typical pictures of a deformed gestational sac and absence of fetal poles or heart beat.

The diagnosis of missed abortion is usually made by serial ultrasound scans demonstrating lack of gestational development.