The procedure of rendering the PLACENTA visible by means of X-rays. This can be done either by using what is known as soft-tissue radiography, or by injecting a radio-opaque substance into the bloodstream or into the amniotic cavity (see AMNION). The procedure has some risk to both mother and fetus, and is carried out under expert supervision. It can help to assess the cause of antepartum haemorrhage. The placenta and fetus can now be visualised by the non-invasive and safe method of ULTRASOUND.
Health Encyclopedia