What are the physical methods of prenatal diagnostics?

Prenatal Diagnostics:

1. All prenatal diagnostic methods can be classified as biological and physical.

X-rays:

1. Only in the third trimester of pregnancy does an X-ray examination reveal the presence of a hereditary defect.
2. X-rays clearly show anencephalia, spinal cord hernia, and hydrocephalus.

Fetoscopy :

1. Fetoscopy provides a visible, real-time image of the embryo, but it has numerous side effects and is only used in rare cases.

Ultrasound:

1. Ultrasonic examination is used to diagnose a variety of nervous system defects. It also aids in the diagnosis of kidney defects such as polycystic.