Konica Minolta, Inc.

Konica Minolta Medical and Graphic, Inc.

Toshiba Elevator Kabushiki Kaisha

Yoshihiro Takeda

Kazuya Takagi

Akihiro Kawabata

Jo Shikama

Daisuke Kaji

Sumiya Nagatsuka

Makoto Horiuchi

Makiko Urabe

Kazuya Osada

Provided is an ultrasound diagnostic apparatus for generating a tomographic image of a subject by transmitting and receiving an ultrasound, the ultrasound diagnostic apparatus including: a hardware processor that: detects a blood vessel imaged in the tomographic image; determines whether an image of the blood vessel which has been detected falls under either a short axis view or a long axis view by an image analysis of the tomographic image; and sets a steering angle of an ultrasound beam used in measuring conditions of the detected blood vessel or a blood flow velocity in the detected blood vessel, based on a determination result of the image of the blood vessel.

Ultrasound diagnostic apparatus, method of controlling ultrasound diagnostic apparatus, and non-transitory computer-readable recording medium storing therein computer-readable program for controlling ultrasound diagnostic apparatus

An ultrasound diagnostic apparatus including a hardware processor that: calculates a plurality of eigenvectors by performing principal component analysis on a time-series reflection wave data group; calculates a principal frequency component of a time direction represented by the plurality of eigenvectors; determines a reduction rate of each of the plurality of eigenvectors on a basis of the principal frequency component of each of the plurality of eigenvectors and a clutter component reduction condition that defines a reference frequency for reduction of a clutter component; calculates a filter coefficient for reduction of the clutter component on a basis of the plurality of eigenvectors, and the reduction rate corresponding to each of the plurality of eigenvectors; and generates blood flow image data by applying the filter coefficient to the time-series reflection wave data group.

Ultrasound diagnostic apparatus, control method of ultrasound diagnostic apparatus, and computer-readable recording medium storing control program of ultrasound diagnostic apparatus

An ultrasound diagnostic apparatus includes: a hardware processor that search for a blood vessel position of a subject in a tomographic image and automatically setting a region corresponding to the blood vessel position detected in the tomographic image as a measurement region for generating a Doppler image. In a case where a measurement region has been already set or in a case where a specified position specified by a user exists when the hardware processor automatically sets the measurement region, the hardware processor executes processing of searching for the blood vessel position such that the measurement region is automatically set near the measurement region that has been already set or the specified position.

An ultrasound diagnostic imaging training apparatus for training an identification model to be used for identifying a target in an ultrasound image generated based on reflected ultrasound reflected from inside a subject includes a first hardware processor that extracts a first image from the ultrasound image used for training and generates teacher data in which a feature value of a second image included in the first image is associated with information relating to a likelihood of the target, the generation of the teacher data being based on the first image and preset reference data; and a second hardware processor that trains the identification model through machine learning using the teacher data.

Ultrasound diagnostic imaging training apparatus, ultrasound diagnostic imaging apparatus, identification model training method, non-transitory recording medium storing computer readable training program, and ultrasound diagnostic apparatus

An ultrasound diagnostic device including a transmitter, a first image processor, a second image processor, and an image synthesizer. The transmitter alternates between first transmission events that include transmission of first detection waves and second transmission events that include transmission of second detection waves. The first image processor generates frames of first images based on reception signals corresponding to a plurality of the first transmission events. The second image processor generates frames of second images based on reception signals corresponding to the second transmission events. The image synthesizer superimposes the second images on the first images to generate synthesized images. Frame rate of the second images is higher than that of the first images. The transmitter performs a third transmission event prior to the second transmission events that includes transmission of a plurality of the first detection waves to acquire reception signals corresponding to one frame of the first images.

Ultrasound diagnostic device and ultrasound signal processing method

An ultrasound diagnosis apparatus includes: a transmission/reception part that sequentially supplies a drive signal to each of a plurality of ultrasound transducers, and receives and processes a reception signal output from each of the plurality of ultrasound transducers; and a hardware processor that: converts sampling data of each of positions into pixel values, and generates a first ultrasound image; upscales the first ultrasound image in accordance with a predetermined sample number increase magnification, and thereafter applies resolution enhancement processing on the first ultrasound image and thereby generates a second ultrasound image; converts the second ultrasound image into a display image; and controls transmission/reception conditions of the transmission/reception part so that an image size of the second ultrasound image becomes close to an image size of the display image, on the basis of the image size of the display image and the sample number increase magnification.

Ultrasound diagnosis apparatus with enhanced image resolution

An ultrasound diagnostic device generates a frame reception signal by compounding sub-frame reception signals acquired from a subject body through an ultrasound probe. The sub-frame reception signals are generated through sub-scans composing an ultrasound scan. Between the sub-scans, a range in the scanned subject body differs due to a different ultrasound beam steering angle used. The diagnostic device includes a control circuit with a reception signal acquirer acquiring sub-frame reception signals, and a map creator creating sub-frame enhancement maps corresponding to the sub-frame reception signals, the maps created by calculating, for a pixel region reception signal, an enhancement amount according to a characteristic value calculated based on the pixel region reception signal. The diagnostic device also includes an enhancement-applied reception signal generator generating an enhancement-applied frame reception signal by compounding pixel region reception signals considering the enhancement amount included in at least one sub-frame enhancement map.

Ultrasound image processing method and ultrasound diagnostic device using same

An ultrasound diagnostic apparatus includes a transmitter, a receiver and a hardware processor. The transmitter outputs a drive signal for a C-mode image to an ultrasound probe. The receiver obtains a reception signal from the probe. The processor sets at least one mask in a frame of packet data of the reception signal; calculates a covariance matrix from a plurality of packet data included in the mask; calculates an eigenvector for the mask from the covariance matrix; calculates a first filter coefficient for the packet data by using the eigenvector and a gain matrix; performs interpolation on the first filter coefficient to calculate a second filter coefficient for packet data of each position in the frame; filters the packet data of the position by using the second filter coefficient; and generates C-mode image data from the filtered packet data.

Ultrasound diagnostic apparatus, ultrasound image generation method and storage medium

An ultrasound diagnostic device including: a transmitter which outputs a driving signal for a C-mode image to an ultrasound probe sending and receiving ultrasound; a receiver which obtains a reception signal from the ultrasound probe; and a controller which: calculates an inner product value of packet data of the reception signal and a first orthonormal basis for each degree; sets a conversion function to convert the inner product value into a removal rate to remove a clutter component; converts the calculated inner product value into the removal rate for each degree by using the set conversion function; and generates image data from which a signal component of the C-mode image is removed according to the removal rate for each degree.

Ultrasound diagnostic device and ultrasound image generating method

An ultrasound diagnosis apparatus generates an ultrasound image of an inside of a subject on a basis of ultrasound signals which are reflected off at the inside of the subject and received. The apparatus includes a needle position specifier and a needle emphasis processor. With respect to each region in the ultrasound image, the needle position specifier obtains a deep region feature value relating to signal intensity in a region deeper than a region subject to judgment in relation to ultrasound signal distribution along an emission direction of an ultrasound emitted in a subject, and specifies a position of a puncture-needle which is inserted in the subject. The needle emphasis processor carries out a process for emphasizing the position of the puncture-needle which is specified in the ultrasound image.

Ultrasound diagnosis apparatus

An ultrasound diagnosis apparatus generating an ultrasound image of inside of a test object based on ultrasound signals reflected and received from the inside of the test object includes: a candidate region extracting unit which extracts a plurality of candidate detection regions in a needle position range corresponding to a position of a puncture needle inserted into the test object; a needle identification range setting unit which determines a needle identification range including the needle position range from the ultrasound image based on the extracted candidate detection regions; a needle position range estimating unit which determines an estimated range of the needle position range in the needle identification range based on a value indicating an aggregation state related to a distribution of the candidate detection regions in the needle identification range; and a needle emphasizing unit which performs a process for emphasizing the estimated range in the ultrasound image.

Disclosed is an ultrasound diagnostic imaging apparatus including an ultrasound probe which outputs transmission ultrasound to a subject according to a drive signal, a puncture needle being inserted in the subject, and which outputs a received signal obtained by receiving reflected ultrasound from the subject. The ultrasound diagnostic imaging apparatus further includes an image generation unit which generates ultrasound image data for each frame, a display unit which displays an ultrasound image, an evaluation information generation unit which generates movement evaluation information indicating movement evaluation between frames, a puncture needle position detection unit which detects a position of a tip of the puncture needle on a basis of the movement evaluation information, a highlighting unit which highlights display of a tip image in the ultrasound image and a speed calculation unit which calculates moving speed of the tip of the puncture needle.

Ultrasound diagnostic imaging apparatus and ultrasound image display method

An ultrasonic image diagnostic device includes: an ultrasonic transmitting/receiving unit which repeatedly transmits an ultrasonic wave to a subject and receives an ultrasonic echo from the subject; an image processor which generates a plurality of ultrasonic images illustrating an in-vivo state of the subject based on ultrasonic echoes sequentially received from the subject; and a motion evaluating unit which performs motion evaluation of a moving body in the plurality of generated ultrasonic images, wherein the motion evaluating unit includes an interval setting unit which sets an interval between the ultrasonic images which should be compared with each other for the motion evaluation so as to be variable in increments of the number of frames based on a frame rate of the plurality of generated ultrasonic images.

Ultrasonic image diagnostic device having function to variably set frame interval for generation of variation image for motion evaluation based on frame rate, and ultrasonic image processing method and ultrasonic image processing program for same

An ultrasound image processing method including: calculating motion amounts of pixel regions in one frame receive signal, based on receive signal units corresponding to identical pixel regions included in at least two frame receive signals; calculating cumulative motion amounts, each corresponding to a target pixel region in the one frame receive signal, by cumulating motion amounts corresponding to pixel regions in the one frame receive signal located substantially along a direction of transmission of the ultrasound beam from a pixel region located at an upstream end of an ultrasound beam to the target pixel region; calculating enhancement amounts for receive signal units corresponding to the pixel regions included in the one frame receive signal, the enhancement amounts being based on the motion amounts and the cumulative motion amounts; and enhancing the receive signal units based on the enhancement amounts.

Ultrasound image processing method and ultrasound diagnostic device using ultrasound image processing method

An ultrasound diagnostic device generating a frame reception signal by compounding sub-frame reception signals through spatial compounding, the ultrasound diagnostic device including a control circuit that includes a sub-frame enhancement map creator creating a plurality of sub-frame enhancement maps, each corresponding to one sub-frame reception signal, the creating of each of the sub-frame enhancement maps being performed by calculating, for a pixel region reception signal in a corresponding sub-frame reception signal, an enhancement amount in accordance with a characteristic value calculated based on the pixel region reception signal, the pixel region reception signal corresponding to a pixel region composed of one or more pixels, and an enhancement-applied reception signal generator generating an enhancement-applied frame reception signal by compounding pixel region reception signals included in the sub-frame reception signals based on pixel region positions, taking into account the enhancement amount in at least one of the sub-frame enhancement maps.

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Hachioji, Japan

Yoshihiro Takeda