Olympus Corporation

Olympus Medical Systems Corporation

Hirotaka Eda

Hiroshi Kodama

Tomonao Kawashima

Kenichi Nishina

Hironaka Miyaki

Shoichi Matsui

An ultrasound diagnostic apparatus includes: a beam former that drives an ultrasound transducer including two-dimensionally arranged vibration elements and that acquires ultrasound data of a three-dimensional space; a delay calculating circuit sets scan conditions including a drive delay amount of the beam former; a graphic circuit that generates an ultrasound slice image of a predetermined cut surface from the ultrasound data of the three-dimensional space; and a CPU that determines a focal length or a focal depth of the ultrasound according to a distance from the ultrasound transducer to the desirably set cut surface to set an amount of delay to cause the delay calculating circuit to change the scan conditions.

Ultrasound diagnostic apparatus and operation method of ultrasound diagnostic apparatus

An ultrasonic observation apparatus includes: ultrasound probes; a storage unit that stores, for each ultrasound probe, attenuation that is a difference in signal intensity for each frequency between a predetermined common waveform and a waveform obtained by providing the ultrasound probes with a common transmission drive wave; a transmission drive wave generating unit that generates, for each ultrasound probe, a transmission drive wave obtained by adding the attenuation to the common transmission drive wave; and a reception signal correcting unit that performs a correction for each frequency, by adding the attenuation to a reception signal which is obtained by transmitting to the specimen the transmission echo having the predetermined common waveform and by converting the reception echo reflected from the specimen, the transmission echo being obtained by converting the transmission drive wave that is given by adding the attenuation to the common transmission drive wave.

Ultrasonic observation apparatus, operation method of ultrasonic observation apparatus, and computer readable recording medium

An ultrasonic observation apparatus includes: a region of interest setting unit capable of setting information on a region of interest; a focus point calculation unit that divides the region of interest into a plurality of partial regions of interest according to the number of focus points in the region of interest, calculates a focus point in each of the partial regions of interest, and determines a transmission timing according to calculation results; a transmitting and receiving unit that performs a transmission-and-reception of an ultrasonic wave which is focused on the focus point; a frequency analysis unit that calculates a plurality of frequency spectra by analyzing the received ultrasonic wave with reference to the focus point; a feature data extracting unit that approximates the frequency spectra to extract feature data thereof; and an image processing unit that generates display image data based on the feature data. The focus point calculation unit does not set a focus point according to the number of focus points in the partial regions of interest including the focus point for the B-mode image.

Ultrasonic observation apparatus, operation method of the same, and computer readable recording medium

A data space in which a coordinate system is set having, as components, feature data extracted by approximation with respect to frequency spectrums of received ultrasonic waves, when a feature point of a frequency spectrum at a data position is present within a first area in an i-th frame (i is a positive integer) in a display and moves closer to a second area, having a lower priority than the first area, in subsequent (i+1)-th frame; an ultrasonic observation apparatus generates image data by setting a virtual feature point that is far off from the second area as compared to the latest feature point and that is within or around the first area, and by replacing visual information corresponding to the latest feature point in the (i+1)-th frame of the predetermined data position with visual information corresponding to the virtual feature point, and then displays the image data.

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Tokyo, Japan

Hirotaka Eda