Author(s): Hiroko Naganuma, Hideaki Ishida
Ultrasound (US) is the first diagnostic tool use for observing the whole abdomen, and we know that many abdominal diseases have been immediately detected by abdominal US. However, the actual US machine usually weights more than 100 kg and measures 1 by 1.5 meters. It prevents us to bring the machine to bedside anytime and anywhere.