Dr. Dorita Paylago Evangelista, MD, MHA, FPCR, FUSP, FPCHA Ultrasound was first introduced into the country in 1973, when the Makati Medical Center acquired a Picker ultrasound machine. It was mainly for diagnosis. It was handled by Dr. Crisanto Vito Cruz, who had the only training in ultrasound. In the latter part of October 1973, Dr. Carlos J. Marquez, Chairman of the Department of Radiology, after undergone training in the Marien Krakenhaus, Hamburg, West Germany, became the ultrasonologist of the Makati Medical Center until 1975, when he authorized Dr. Vicente V. Romano, Jr. to operate the ultrasound machine. Medical Center Manila also purchased an ultrasound unit under Dr. Vito Cruz. University of Santo Tomas Hospital followed suit with the acquisition of a gray scale ultrasound unit with analogue scan converter in 1977, which was handled by Dr. Alfonso Doria. In 1978, Makati Medical Center purchased the first gray scale unit with digital scan converter. With ultrasound accepted as valuable diagnostic modality, several hospitals organized their respective ultrasound sections until such time that ultrasound units are all over the country, but mostly concentrated in Metro Manila. The number of practicing sonologists in 1988 was about one hundred twenty (120).