 From the 1960s commercially available systems were introduced . Soon , other advances in electronics and piezoelectric materials enabled further improvements which meant that ultrasound was quickly adopted for use in medicine due to its rapid , accurate diagnostic capabilities which offered the possibility of prompt treatment . Alongside the improving imaging technology , acoustic Doppler <unk> and medical ultrasonography color Doppler were developed , which have had a significant impact on many specialties , including radiology , obstetrics , gynecology , <unk> and cardiology , and have provided even greater scope for ultrasound investigations . Since 1970 , real @-@ time scanners and pulsed Doppler , have enabled the use of ultrasound to study the function of the venous system . The first demonstration of color Doppler was achieved by Geoff Stevenson . Further progress in the 1970s was made with the arrival of the microchip , and the ensuing exponential increase in processing power has meant the development of fast and powerful systems . These systems involving digital <unk> and greater signal enhancement , have introduced new methods of interpreting and displaying data . 
