Jan SomerUltrasound Group Leader, MFI-TNO, Utrecht, Biophysics Department, Maastricht University (retired), Netherlands

    Jan Somer achieved his MSc degree in Electrical Engineering at Delft University of Technology in 1960. In 1961 he started at the Institute of Medical Physics -TNO in Utrecht.

    Initially  his work consisted of supporting neurologists experimenting with ultrasound for imaging the brain. The A-scan was relatively successful because it was real-time. Unfortunately it was only one-dimensional. The B-scan was two-dimensional but not real-time and failed for imaging the brain.

    This  convinced him that only a phased-array system which is real-time and two-dimensional would solve the problem. He developed a prototype, the Electroscan, that was presented at the 1st WFUMB 1969. This is now exactly fifty years ago.

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