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Start of the art of the heart

A study published in Chinese Journal of Obstetrics and Gynecology(1964;10;267-69) was an even earlier (if not the earliest) paper on fetal echocardiography. This systematic research was carried out by Xin-Fang WANG and Ji-Peng Xiao in Wuhan Medical College (now Tongji Medical College, Wuhan Central China). 140 women (147 fetuses) were examined using M-mode ultrasound. The study developed into a new technique of the fetal heart rate and for estimation of the fetal cardiac size