Ultrasound observation apparatus, operating programs of the operating method and the ultrasound observation apparatus of the ultrasound observation apparatus

摘要

PROBLEM TO BE SOLVED: To attain accurate discrimination of tissue properties and to improve the reliability of an observation result.;SOLUTION: An ultrasonic observation apparatus computes a frequency spectrum by analyzing the frequency of ultrasonic waves received at a predetermined receiving depth, stores a predetermined frequency value as an upper limit value of a frequency band at the predetermined receiving depth for each receiving depth, performs setting for limiting the frequency band of the frequency spectrum computed by a frequency analysis part based on the upper limit value of the frequency band, stores a reference spectrum at the predetermined receiving depth obtained based on the frequency of ultrasonic waves received from a reference reflecting body, for each receiving depth, corrects the frequency spectrum computed by the frequency analysis part based on the reference spectrum stored by a reference spectrum information storage part, to compute a corrected frequency spectrum, and performs approximate processing to the corrected frequency spectrum in a predetermined frequency band to extract a feature quantity that shows the tissue properties of a specimen from the result of approximate processing.;COPYRIGHT: (C)2013,JPO&INPIT