Obstetric Ultrasonography

Obstetric Ultrasonography is an ultrasound examination with an instrument in real time, using transabdominal or transvaginal approach or both. Real -time ultrasonography is needed to confirm fetal vitality by observing fetal cardiac activity and fetal movement. Selecting transduce frequency is a compromise between penetration and resolution of this. Several types of tests, standard or basic, limited, and specialized (or detailed level II) these types of sonograms are performed in the second and third trimester of pregnancy. The first quarter is different and is discussed separately. <a id="