ULTRASOUND OBSERVATION DEVICE, OPERATING METHOD FOR ULTRASOUND OBSERVATION DEVICE, AND OPERATING PROGRAM FOR ULTRASOUND OBSERVATION DEVICE

摘要

An ultrasonic observation apparatus amplifies a signal of an ultrasonic wave received from a sample with an amplification factor according to a receiving depth; generates B-mode image data in which the amplitude of the signal of the amplified ultrasonic wave is converted into brightness and displayed; performs amplification-correction to make the amplification factor constant with respect to the signal of the amplified ultrasonic wave regardless of the receiving depth; calculates a frequency spectrum by analyzing the frequency of the amplification-corrected signal of the ultrasonic wave; extracts feature data of the frequency spectrum by approximating the calculated frequency spectrum; performs correction, on one of the frequency spectrum and the feature data, to reduce the contribution of the attenuation of the strength accompanying the transmission of the ultrasonic wave; and generates feature data image data to display visual information corresponding to the feature data.