Zhou Yongchang

Zhou Yongchang (Chinese: 周永昌; pinyin: Zhōu Yǒngchāng; Wade–Giles: Chou Yung-ch'ang; 1922–2017) was a Chinese physician. Zhou is known as one of pioneer sonographers in mainland China. Zhou was born in November, 1922 in Shanghai. Graduated from Tong De Medical College, he became an urologist. In the late 1950s, Zhou and his colleagues tried to apply industrial ultrasonic testing for medical diagnosis. In 1988, together with the other four persons, they were presented with the "History of Medical Ultrasound Pioneer Award" by the World Federation of Ultrasound in Medicine and Biology (WFUMB). He is the maternalgrandfather of South Korean-based singer and TV host Jackson Wang.

Zhou died on 24 October 2017.