DISPOSITIF D'OBSERVATION ULTRASONORE, PROCÉDÉ DE FONCTIONNEMENT POUR DISPOSITIF D'OBSERVATION ULTRASONORE, ET PROGRAMME DE FONCTIONNEMENT POUR DISPOSITIF D'OBSERVATION ULTRASONORE
Provided are: a frequency analysis unit configured to calculate a frequency spectrum of an electrical echo signal received from an ultrasound probe by analyzing a frequency of the echo signal； a band setting unit configured to set, in accordance with a transmission drive wave, a feature calculation-purpose frequency band used in calculating a feature of the frequency spectrum； an intensity correction unit configured to calculate a corrected frequency spectrum by correcting, using a correction amount defined in accordance with the transmission drive wave, intensity of the frequency spectrum in the feature calculation-purpose frequency band set by the band setting unit； and an approximation unit configured to approximate, in the feature calculation-purpose frequency band, the corrected frequency spectrum calculated by the intensity correction unit, thereby to extract a feature of the corrected frequency spectrum. Consequently, provided are an ultrasound observation apparatus capable of keeping a feature of a frequency spectrum corresponding to received ultrasound constant regardless of characteristics of transmitted ultrasound, a method for operating the ultrasound observation apparatus, and a program for operating the ultrasound observation apparatus.
