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: 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: According to one embodiment, an ultrasonic diagnostic apparatus includes processing circuitry. The processing circuitry determines whether or not to increase the number of beams to be compounded based on the information on the examination mode and increases the number of beams to be compounded when determining that the number of beams to be compounded is to be increased.

Abstract: The ultrasonic diagnostic apparatus according to the present embodiment includes processing circuitry. The processing circuitry is configured to determine a scan region of an ultrasonic wave according to a scan target. The processing circuitry is configured to set a pulse repetition frequency for each raster of rasters so as to correspond to the scan region. The processing circuitry is configured to control a scan performance according to the pulse repetition frequency.

Abstract: According to one embodiment, an ultrasound diagnosis apparatus includes processing circuitry. The processing circuitry acquires a change in a display parameter related to image display in a first bloodstream imaging mode of displaying a bloodstream signal acquired by an ultrasonic probe during execution of the first bloodstream imaging mode, and determines whether or not the display parameter after the change is more suitable for a second bloodstream imaging mode than for the first bloodstream imaging mode, an imaging method of the second bloodstream imaging mode differing from an imaging method of the first bloodstream imaging mode.

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 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: 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: 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 ultrasound diagnostic apparatus according to an embodiment includes processing circuitry. The processing circuitry causes an ultrasound probe to execute first ultrasound scanning to acquire blood flow information within a first scanning area and causes the ultrasound probe to execute second ultrasound scanning to acquire tissue shape information within a second scanning area. The processing circuitry receives an instruction for changing a flow-velocity value to be displayed in display of the blood flow information. When, because of a change of the flow-velocity value according to the instruction, a time for transmitting/receiving ultrasound per scanning line in the first ultrasound scanning exceeds a transmitting/receiving time before the change, the processing circuitry assigns a time corresponding to the excess to at least one of the first ultrasound scanning and the second ultrasound scanning.

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 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: The ultrasonic diagnostic apparatus according to the present embodiment includes processing circuitry. The processing circuitry is configured to determine a scan region of an ultrasonic wave according to a scan target. The processing circuitry is configured to set a pulse repetition frequency for each raster of rasters so as to correspond to the scan region. The processing circuitry is configured to control a scan performance according to the pulse repetition frequency.

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: In an ultrasonic diagnostic apparatus according to an embodiment, a separator separates an arbitrary region of a displayed object represented from image data, in a depth direction, based on a characterizing quantity included in the image data. An image generation controller generates an image to be displayed in which depth direction information is reflected on the arbitrary region of the displayed object, separated by the separator. A display controller causes a monitor being capable of providing a stereoscopic vision to display the image to be displayed generated by the image generation controller.

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 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 ultrasound diagnostic apparatus according to an embodiment includes processing circuitry. The processing circuitry causes an ultrasound probe to execute first ultrasound scanning to acquire blood flow information within a first scanning area and causes the ultrasound probe to execute second ultrasound scanning to acquire tissue shape information within a second scanning area. The processing circuitry receives an instruction for changing a flow-velocity value to be displayed in display of the blood flow information. When, because of a change of the flow-velocity value according to the instruction, a time for transmitting/receiving ultrasound per scanning line in the first ultrasound scanning exceeds a transmitting/receiving time before the change, the processing circuitry assigns a time corresponding to the excess to at least one of the first ultrasound scanning and the second ultrasound scanning.

Abstract: There is provides an ultrasonic diagnostic apparatus including a judgment unit which judges a folded back phenomenon of velocity based on signal information of a Doppler spectrum among signals received in a circulatory organ diagnostic region, a decision unit which decides whether the signals received are blood flow signals or tissue signals, and a change/adjustment unit which changes or adjusts at least one of a velocity range, a baseline position, a transmission/reception condition, a gain allocation, setting of a Wall Filter, a scrolling speed, and a range gate size.