The number of people who are suffering from Functional gastrointestinal disorders is increasing. There are, however, rare diagnostic methods for the functional gastrointestinal disorders because functional disorders show no evidence of organic and physical causes [1, 2]. Recently our research group identified that the gastrointestinal tract well in the patients with the functional gastrointestinal disorders is more rigid than healthy people. we noticed it with palpating the abdominal regions overlaying the gastrointestinal tract. Therefore we developed a system to detect the rigid organs with ultrasonic technique, which can quantify the characteristic above related to the rigidity of the gastrointestinal tract well.

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