The first simple A-scan metal flaw detectors and modifications of this equipment were used medically in 1949 by George Ludwig at MIT to locate gallstones and John Julian Wild at the Technical Research Institute in Minnesota to detect breast masses. In 1953 Inge Edler and Carl Hertz in Lund University adapted a metal flaw detector to obtain M-mode recordings from the adult heart. Wild together with his engineer John Read published the first 2D images in 1952 but his efforts were directed towards tissue characterisation especially of breast tumours and the accolade for producing the first tomographic images of human anatomy must go to Douglass Howry in Denver who published his landmark paper (Howry, 1952) in the same year.
Aaya Kalaigal 63 With Images
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