Alfred Kratochwil was born on May 25, 1928.

He has graduated from the University of Vienna Medical School in 1963. He started his academic career as a junior Obstetrician and Gynaecologist at the University Department of Vienna in 1956 and worked there until 1982.

In 1964, he was studying the localization of the placenta using X-ray placentography and found much dissatisfaction at the interpretation. By chance, he attended a lecture by a neurosurgeon on the diagnosis of cerebral bleeding with ultrasound at the Society of Doctors in Vienna. He soon realised that this method could be applied to placental localisation.

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