Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes calculation circuitry, acquisition circuitry, determination circuitry, and scan control circuitry. The calculation circuitry calculates an indicator related to motion of biological tissue in a subject, based on echo data obtained through a pre-scan for the subject. The acquisition circuitry acquires a periodic biological signal of the subject. The determination circuitry specifies at least one tune phase in one cycle of the biological signal acquired during the pre-scan, based on the indicator, and determines a timing of a main scan for the subject, based on the specified time phase and the biological signal acquired after the pre-scan. The scan control circuitry executes the main scan at the timing determined by the determination circuitry.

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: An ultrasound diagnostic apparatus according to an embodiment includes transmitting and receiving circuitry, adding circuitry, and image generating circuitry, and control circuitry. The transmitting and receiving circuitry performs, more than once on the same scan line, an ultrasound transmission and reception repeatedly performed with phase polarities being inverted on the same scan line, according to a number set as a scan condition parameter. The adding circuitry adds together reflected wave data received as a result of the ultrasound transmission and receptions. The image generating circuitry generates an image by using the reflected wave data that have been added together. The control circuitry controls the transmitting and receiving circuitry, based on a relation between the number of the ultrasound transmission and receptions and a scan condition parameter other than the number.

Abstract: A signal processing apparatus of an embodiment includes processing circuitry and control circuitry. The processing circuitry acquires a plurality of IQ signals obtained by performing a plurality of processing with different conditions on reflected wave signals generated at a transducer element included in an ultrasound probe. The processing circuitry generates a compound signal compounded by non-linear processing of the IQ signals. The control circuitry causes a display to display image data based on the compound signal.

Abstract: An ultrasonic diagnostic apparatus includes reception circuitry, signal processing circuitry, and generating circuitry. The reception circuitry outputs a plurality of reception signals corresponding to respective reception scanning lines for each transmission and reception of an ultrasonic wave by an ultrasonic probe. The signal processing circuitry executes a weighting process and a phase correction process according to the position of each reception scanning line on at least one of the reception signals and a plurality of signals based on the reception signals, generates the processed signals for each reception scanning line, and outputs a plurality of composite signals using the processed signals generated based on the transmission and reception of the ultrasonic waves before and after changing the sound field of the transmitted ultrasonic wave, and before and after changing the position of the reception scanning lines.

Abstract: An ultrasonography apparatus includes transmitting circuitry, and processing circuitry. The transmitting circuitry configured to cause an ultrasound probe to transmit a displacement-generation ultrasonic wave to cause a displacement in a tissue of a living body, and cause the probe to transmit an observation ultrasonic wave to observe a displacement of a tissue of a living body in a predetermined scan region, the displacement caused based on the displacement-generation ultrasonic wave. The processing circuitry configured to accept a setting instruction that corresponds to the region, and that is related to an acquisition frequency of an image based on a reflected wave signal that is acquired by the probe by transmission and reception of the observation ultrasonic wave, determine a transmission condition for at least one of the displacement-generation ultrasonic wave and the observation ultrasonic wave, according to the setting instruction, and control the transmission circuitry based on the condition.

Abstract: An ultrasound diagnosis apparatus includes a transmission and reception unit, an addition unit, an image generation unit, and a control unit. The transmission and reception unit performs a set of ultrasound transmission and reception in a first mode or a plurality of sets of ultrasound transmission and reception in a second mode along the same scan line. Each set of ultrasound transmission and reception is constituted of repeated ultrasound transmission and reception sequentially performed in reversed phase polarity along the same scan line. The addition unit adds reflected wave data in the second mode. The image generation unit generates an image by using reflected wave data in the first mode or in the second mode. The control unit switches the first mode and the second mode. The transmission and reception unit performs a set or a plurality of sets of ultrasound transmission and reception according to a switching operation.

Abstract: An apparatus and method for indicating locus of an ultrasonic probe configured to transmit and receive ultrasonic waves toward a part of a subject wherein a position or movement of the ultrasonic probe is detected, and a locus of the ultrasonic probe on an image of the part of the subject is indicated according to the detected position or movement.

Abstract: As an ROI for display and an ROI for valve observation as well as a projecting direction are input, a volume-rendering processing unit creates a first image in the ROI for display through volume rendering processing, and the ray-tracing processing unit creates a second image in the ROI for valve observation through ray tracing processing. An image compositing unit then creates a composite image by compositing the first image and the second image, and the composite image created by the image compositing unit (13) is displayed on a monitor.

Abstract: According to one embodiment, an ultrasonic diagnostic apparatus includes a transceiver part, a signal processing part and an image generation part. The transceiver part controls an ultrasonic probe to perform a first and second scans. The first scan transmits a first ultrasonic wave and an ultrasonic wave, obtained by modulating an amplitude of the first ultrasonic wave, to scanning lines distributed three dimensionally, and receives first reflected waves. The second scan transmits a second ultrasonic wave to scanning lines distributed two dimensionally during the first scan, and receives second reflective waves. The transceiver part obtains first and second reception signals based on the first and second reflected waves. The signal processing part generates composite signals by combining the first reception signals. The image generation part generates three dimensional ultrasonic image data based on the composite signals, and two dimensional ultrasonic image data based on the second reception signals.

Abstract: An ultrasonic diagnostic apparatus according to an embodiment include a transmitter/receiver, a signal processor, and an image generator. The transmitter/receiver causes an ultrasonic probe to transmit on each scanning line at least three ultrasonic pulses, the three ultrasonic pulses being: a first ultrasonic pulse including at least one frequency component and being transmitted with a first phase; a second ultrasonic pulse including the frequency component and being transmitted with a second phase different from the first phase by 180 degrees; and a third ultrasonic pulse including the frequency component and being transmitted with a third phase different from the first phase and the second phase by 90 degrees and generates a plurality of reception signals corresponding to the respective ultrasonic pulses. The signal processor combines the plurality of the reception signals and generates a composite signal. The image generator generates ultrasonic image data.

Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes a transmitter/receiver, a signal processor, an image generator, and a controller. The transmitter/receiver executes ultrasonic transmission/reception sets a plurality of times on an identical scanning line by changing transmission conditions, and generates a plurality of sets of reception signals, the ultrasonic transmission/reception sets including a plurality of ultrasonic transmissions/receptions on the identical scanning line serving as a unit. The signal processor combines the reception signals in each of the plurality of the sets, and generates a plurality of composite signals corresponding to each of the plurality of the sets. The image generator generates ultrasonic image data using the composite signals.

Abstract: An imaging part acquires a plurality of ultrasound image data by sequentially imaging the subject with ultrasound waves. A display controller causes a display to display, side by side, a plurality of ultrasound images based on the plurality of ultrasound image data acquired by the imaging part. Moreover, the display controller causes the display to display measurement markers for obtaining quantitative information of tissues shown in the ultrasound images in a state superimposed in relatively the same positions on the plurality of ultrasound images.

Abstract: An ultrasound diagnosis apparatus according to an embodiment includes a receiving unit and a changing unit. The receiving unit outputs an ultrasound received signal. The changing unit obtains, in accordance with a change in a spatial frequency of ultrasound image data subject to an imaging processing, a group of parameters related to a frequency characteristic of an imaging received signal that is output by the receiving unit as the ultrasound received signal to be used in the imaging processing and changes a center frequency and a frequency band to be used in the imaging processing performed on the imaging received signal, on a basis of the obtained group of parameters.

Abstract: An ultrasound diagnostic apparatus according to an embodiment includes a transmitter/receiver, an adder/subtractor and an image generating unit. The transmitter/receiver performs a first set of ultrasound transmission/reception and a second set of ultrasound transmission/reception, on a same scanning line of an imaging region of a subject administered with a contrast agent, for a plurality of sets, to output reflected wave data for the plurality of the sets, the first set of the ultrasound transmission/reception performing amplitude-modulated or amplitude- and phase-modulated ultrasound transmission transmitted a plurality of times and receiving reflected waves, and the second set of the ultrasound transmission/reception being transmission/reception whose phase modulation being different from phase modulation of the first set of the ultrasound transmission/reception. The adder/subtractor adds or subtracts the reflected wave data for the plurality of the sets.

Abstract: An ultrasound diagnosis apparatus includes a transmitter/receiver, a signal processor, and an image generator. The transmitter/receiver transmits, at least once in each scanning line, a first ultrasound pulse and a second ultrasound pulse whose amplitude corresponds to amplitude of the first ultrasound pulse modulated at a given ratio and acquires a received-signal group consisting of multiple received signals. The signal processor acquires, on the basis of a coefficient that reduces the energy of a first composite signal that is obtained by combining, in accordance with the given ratio, multiple received signals contained in the first received signal group acquired by the transmitter/receiver, a second composite signal by combining multiple received signals contained in a second received signal group that is acquired by the transmitter/receiver and that is different from the first received signal group. The image generator generates an ultrasound image based on the second composite signal.

Abstract: A resolution optimization unit determines an optimal sound velocity corresponding to a tissue component at each position in a scan slice, and calculates a reception delay time or the like for each reception beam from each position in the scan slice. A control processor executes delay addition processing in a scan for acquiring an ultrasonic image actually used for diagnosis by using the reception delay time calculated using an optimal sound velocity. This can correct the difference between the set sound velocity used for the calculation of a reception delay time and the actual in vivo sound velocity and acquire an ultrasonic image with optimized resolution.

Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes a setting unit, a transmitter, a signal processing unit, and an image generating unit. The setting unit sets a plurality of ROIs within a scanning region. The transmitter transmits an ultrasonic wave for displacement generation on a plurality of transmission conditions corresponding to the respective ROIs from an ultrasonic probe and transmits an ultrasonic wave for observation that observes a displacement generated by each transmission of the ultrasonic wave for displacement generation, from the ultrasonic probe a plurality of times. The signal processing unit analyzes a plurality of pieces of reflected wave data, acquires a plurality of pieces of displacement information, and calculates distribution information on the respective transmission conditions. The image generating unit generates a plurality of pieces of image data based on the pieces of distribution information and composite image data by composing the pieces of image data.

Abstract: An ultrasonic diagnostic apparatus has a unit which sets a display region for displaying a 3D image, a unit which transmits and receives ultrasound waves, a unit which generates volume data, a unit, on the basis of the volume data, which sets an analysis region, a unit, on the basis of the data on the analysis region contained in the volume data, which analyzes a fluctuations in signal intensity over time, a unit, on the basis of the analysis result, which calculates a cardiac cycle, a unit, on the basis of the cardiac cycle and the volume data, which generates data set constructed by data with substantially equal cardiac cycle, and generates data sets corresponding to a plurality of cardiac cycles, and a unit which displays the 3D images based on the data sets as a moving image.

Abstract: An imaging part acquires a plurality of ultrasound image data by sequentially imaging the subject with ultrasound waves. A display controller causes a display to display, side by side, a plurality of ultrasound images based on the plurality of ultrasound image data acquired by the imaging part. Moreover, the display controller causes the display to display measurement markers for obtaining quantitative information of tissues shown in the ultrasound images in a state superimposed in relatively the same positions on the plurality of ultrasound images.