Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to detect a saturation region of a signal based on an ultrasound wave received by an ultrasound probe; and to correct a first signal including an odd-numbered order harmonic component of the saturation region, on a basis of a second signal including an even-numbered order harmonic component of the saturation region.

Abstract: According to one embodiment, an ultrasound diagnostic apparatus includes processing circuitry. The processing circuitry forms a first transmission beam in a plurality of directions belonging to a first group, forms at least one first reception beam, forms a second transmission beam in a plurality of directions belonging to a second group, after an elapse of a time from performing a scan for the first group, forms at least one second reception beam, applies a wall filter to reception signals obtained by the first and the second reception beams, calculates bloodstream information based on the filtered reception signals, and generates image data based on the calculated bloodstream information.

Abstract: An ultrasound diagnostic apparatus according to an embodiment includes image processing circuitry. The image processing circuitry acquires, based on a result of ultrasound scanning performed on a subject, blood flow information including a value that indicates a blood flow at each position within the subject and tissue property information including a value that indicates tissue properties at each position within the subject. The image processing circuitry generates a first image in which a difference in value in the blood flow information is represented by at least a difference in hue and a second image in which a difference in value in the tissue property information is represented by a difference other than the difference in hue. The image processing circuitry generates a combined image by combining the first image and the second image.

Abstract: An ultrasound diagnosis apparatus includes: a transmission and reception circuitry configured to perform, via an ultrasound probe, a first ultrasound scan on a first region in a subject who has a contrast agent injected and a second ultrasound scan on at least a part of a second region in the subject overlapping with the first region, the second ultrasound scan including transmitting and receiving two types of ultrasound waves of which one or both of amplitude levels and phases are different from each other; and processing circuitry configured to generate a blood flow image corresponding to one frame by implementing a Doppler method on the basis of a data sequence including reception data obtained from the first ultrasound scan performed multiple times in mutually the same position within the first region to have the second ultrasound scan performed in-between and to generate a contrast-enhanced image based on a result of the second ultrasound scan performed at least one time.

Abstract: An ultrasound diagnosis apparatus includes: a transmission and reception circuitry configured to perform, via an ultrasound probe, a first ultrasound scan on a first region in a subject who has a contrast agent injected and a second ultrasound scan on at least a part of a second region in the subject overlapping with the first region, the second ultrasound scan including transmitting and receiving two types of ultrasound waves of which one or both of amplitude levels and phases are different from each other; and processing circuitry configured to generate a blood flow image corresponding to one frame by implementing a Doppler method on the basis of a data sequence including reception data obtained from the first ultrasound scan performed multiple times in mutually the same position within the first region to have the second ultrasound scan performed in-between and to generate a contrast-enhanced image based on a result of the second ultrasound scan performed at least one time.

Abstract: An ultrasound diagnostic apparatus according to an embodiment includes processing circuitry. The processing circuitry calculates, based on first ultrasound information relating to a displacement over time of an organ that makes a periodic movement, a function relating to a clutter component originating from the organ, and calculates, based on the function and second ultrasound information relating to a displacement over time of the organ after pressure is applied to the organ, a shear wave that propagates through the organ by the applied pressure.

Abstract: An ultrasound diagnostic apparatus according to an embodiment includes image processing circuitry. The image processing circuitry acquires, based on a result of ultrasound scanning performed on a subject, blood flow information including a value that indicates a blood flow at each position within the subject and tissue property information including a value that indicates tissue properties at each position within the subject. The image processing circuitry generates a first image in which a difference in value in the blood flow information is represented by at least a difference in hue and a second image in which a difference in value in the tissue property information is represented by a difference other than the difference in hue. The image processing circuitry generates a combined image by combining the first image and the second image.

Abstract: According to one embodiment, an ultrasound diagnostic apparatus includes a transmitter/receiver and processing circuitry. The transmitter/receiver sequentially transmits a first transmission beam group and a second transmission beam group and receives at least one reception beam for each transmission beam, via an ultrasound probe having a plurality of transducers arranged along an azimuth direction and an elevation direction. The processing circuitry combines a first reception beam based on a first transmission beam included in the first transmission beam group and a second reception beam based on a second transmission beam included in the second transmission beam group. Transmission beams that are adjacent to each other in the azimuth direction or the elevation direction belong to transmission beam groups that are different from each other.

Abstract: The ultrasonic diagnostic apparatus according to the present embodiment includes a frequency characteristic analysis circuit, a filter setting circuit, and a filter processing circuit. The frequency characteristic analysis circuit performs a frequency analysis on a first reception signal corresponding to a region of interest of each depth, and acquires a frequency characteristic of each depth. The filter setting circuit sets a reception filter of each depth based on the acquired frequency characteristic of each depth such that the acquired frequency characteristic of each depth shows a predetermined frequency characteristic. The filter processing circuit applies the set reception filter of each depth to a second reception signal corresponding to the region of interest of each depth, the second reception signal being after the first reception signal, and converts the second reception signal into a third reception signal corresponding to the region of interest of each depth.

Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes transmission circuitry, receiving circuitry and extracting circuitry. The transmission circuitry cause an ultrasonic probe to perform three or more times of ultrasonic wave transmissions, an ultrasonic wave to be transmitted including a center frequency component, a phase of the center frequency component being different in each transmission. The receiving circuitry generates three or more reception signals corresponding to a common reception scanning line based on a plurality of reflected wave signals, the plurality of reflected wave signals being obtained through the three or more times of ultrasonic wave transmissions. The extracting circuitry extracts a nonlinear component included in the three or more reception signals by adding up the three or more reception signals after performing a processing including phase rotation processing on two or more reception signals among the three or more reception signals.

Abstract: A method and system enable to-be-processed medical image data and its corresponding noise characteristic information to be normalized to resemble noise characteristic information of training data used to train at least one neural network for at least one ultrasound data acquisition mode. After normalizing, this processed medical image data is input into the trained neural network for producing output data used for generating cleaner images. Noise characteristic information can be used directly in training a neural network, generating a trained neural network that can handle medical image data with various noise characteristics.

Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to receive an input of first ultrasound data and to output second ultrasound data. The processing circuitry is configured to reconstruct third ultrasound data on the basis of amplitude information in the second ultrasound data and phase information in the first ultrasound data. The processing circuitry is configured to perform a process that uses amplitude information and phase information in the third ultrasound data.

Abstract: A medical image diagnosis apparatus according to an embodiment includes processing circuitry configured to acquire signals from a subject over time, calculate a first similarity representing a similarity of the signals between frames with respect to each of a plurality of frames and a plurality of positions and calculate a second similarity representing a similarity of change of the first similarity over time between the positions, and output the second similarity.

Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry obtains time-series data having complex values based on a reflected wave of an ultrasound wave transmitted by an ultrasound probe and calculates an expansion coefficient in a case in which the obtained time-series data is expressed as a linear sum of a plurality of mathematical functions, the time-series data having, as an argument, a first parameter related to time. The plurality of mathematical functions are mathematical functions that are possible to be generated on a basis of a function family that has, as arguments, the first parameter and a second parameter different from the first parameter.

Abstract: The ultrasonic diagnostic apparatus according to the present embodiment includes an evaluating circuit, a frequency setting circuit, and a drive circuit. The evaluating circuit is configured to analyze a received signal of a predetermined depth based on received signals of ultrasonic wave to evaluate a degree of beam penetration to a deep portion. The frequency setting circuit is configured to set a transmission frequency based on a result evaluated by the evaluating circuit. The drive circuit is configured to generate a drive pulse based on the set transmission frequency.

Abstract: According to one embodiment, an ultrasound diagnostic apparatus includes processing circuitry. The processing circuitry forms a first transmission beam in a plurality of directions belonging to a first group, forms at least one first reception beam, forms a second transmission beam in a plurality of directions belonging to a second group, after an elapse of a time from performing a scan for the first group, forms at least one second reception beam, applies a wall filter to reception signals obtained by the first and the second reception beams, calculates bloodstream information based on the filtered reception signals, and generates image data based on the calculated bloodstream information.

Abstract: The ultrasonic diagnostic apparatus according to the present embodiment includes a frequency characteristic analysis circuit, a filter setting circuit, and a filter processing circuit. The frequency characteristic analysis circuit performs a frequency analysis on a first reception signal corresponding to a region of interest of each depth, and acquires a frequency characteristic of each depth. The filter setting circuit sets a reception filter of each depth based on the acquired frequency characteristic of each depth such that the acquired frequency characteristic of each depth shows a predetermined frequency characteristic. The filter processing circuit applies the set reception filter of each depth to a second reception signal corresponding to the region of interest of each depth, the second reception signal being after the first reception signal, and converts the second reception signal into a third reception signal corresponding to the region of interest of each depth.

Abstract: According to one embodiment, an apparatus includes an acquisition unit and a generation unit. The acquisition unit specifies the cycle of pulses in a part that performs periodic motion based on blood flow information in the part. The generation unit rearranges a plurality of two-dimensional images of the part based on the cycle to generate a three-dimensional image.

Abstract: According to embodiment, an ultrasonic diagnostic apparatus includes transmission/reception circuitry transmitting/receiving an ultrasonic wave to/from an object via a piezoelectric transducer, ultrasonic image generation circuitry generating a series of ultrasonic images along a time series based on an output from the transmission/reception circuitry, specifying information generation circuitry generating predetermined specifying information concerning each of the series of ultrasonic images, selection circuitry selecting a color Doppler image from the series of ultrasonic images based on the specifying information in response to a predetermined operation during display of the series of ultrasonic images, and storage circuitry storing the selected color Doppler image.

Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to generate an ultrasound image on the basis of a result of an ultrasound scan performed on a region including a part of a subject. The processing circuitry is configured to obtain a schematic image schematically indicating the part of the subject. The processing circuitry is configured to cause a display to display the schematic image and either the ultrasound image or an image based on the ultrasound image, in such a manner that the orientation of the subject included in either the ultrasound image or the image based on the ultrasound image and the orientation of the subject indicated in the schematic image are close to each other, on the basis of an analysis result from an analysis performed on either the ultrasound image or the image based on the ultrasound image.