DISPOSITIF D'OBSERVATION PAR ULTRASONS, PROCÉDÉ DE FONCTIONNEMENT POUR DISPOSITIF D'OBSERVATION PAR ULTRASONS, ET PROGRAMME DE FONCTIONNEMENT POUR DISPOSITIF D'OBSERVATION PAR ULTRASONS
An ultrasonic observation apparatus includes: a region of interest setting unit that is able to set information on a position and a size of a region of interest in a specimen； a focus point calculation unit that calculates a plurality of focus points in the region of interest based on size information of the region of interest set by the region of interest setting unit； a transmitting and receiving unit that performs a transmission-and-reception of an ultrasonic wave which is focused on the focus points calculated by the focus point calculation unit； a frequency analysis unit that calculates a plurality of frequency spectra by analyzing the ultrasonic wave received by the transmitting and receiving unit with reference to the focus points； a feature data extracting unit that extracts feature data of the frequency spectra calculated by the frequency analysis unit by approximating the frequency spectra； and an image processing unit that generates ultrasonic image data having a display mode corresponding to the feature data extracted by the feature data extracting unit.
