Abstract: In an ultrasound diagnostic apparatus (1), a normal screen display mode in which an ultrasound image and an operation panel for operating the ultrasound diagnostic apparatus (1) are displayed on a monitor (24) is set until a first voice is recognized, and a transition mode for transition from the normal screen display mode to a full-screen display mode in which an operation of the ultrasound diagnostic apparatus (1) using a voice is possible and only the ultrasound image is displayed on the monitor (24) is set in a case where the first voice is recognized. Further, the full-screen display mode is set in a case where the voice is recognized in the transition mode. The ultrasound diagnostic apparatus (1) is returned from the full-screen display mode to the normal screen display mode in a case where a predetermined second voice different from the first voice is recognized in the full-screen display mode.

Abstract: An ultrasound transducer unit including a plurality of ultrasound transducers transmits and receives ultrasound waves to and from an inside of a subject. In a case where a checking operation unit is operated, a controller controls a driving voltage supply unit such that a driving voltage is supplied with all of the plurality of ultrasound transducers as driving target transducers. In a case where the checking operation unit is operated, a depolarization determination unit calculates, for each ultrasound transducer, a reception sensitivity in a case where an ultrasound wave is received by driving all of the plurality of ultrasound transducers as the driving target transducers, and determines whether or not a depolarization determination value calculated from the reception sensitivity of each ultrasound transducer satisfies numerical conditions. If the numerical conditions are satisfied, a polarization voltage supply unit supplies a polarization voltage to each of the plurality of ultrasound transducers.

Abstract: An acoustic wave device includes an insertion object having a photoacoustic wave generator, a light source that irradiates the photoacoustic wave generator with light, an insertion object image signal generator that generates an insertion object image signal from a photoacoustic wave reception signal from the photoacoustic wave generator, and an insertion object display image signal generator that generates an insertion object display image signal having a center at a peak position where a signal strength of the insertion object image signal becomes a peak value, having a maximum width corresponding to a predetermined reference signal width, and having a signal strength corresponding to the peak value at the center.

Abstract: In an ultrasound diagnostic apparatus and an operation method of the ultrasound diagnostic apparatus of the invention, a control circuit performs polarization processing on a plurality of ultrasound transducers in a non-diagnosis period, during which transmission of ultrasound waves and reception of reflected waves for performing ultrasound diagnosis are not performed, in a case where the cumulative driving time of the plurality of ultrasound transducers for performing the ultrasound diagnosis becomes equal to or longer than a specified time. A transmission circuit generates a first transmission signal having a driving voltage for performing ultrasound diagnosis using a pulse generation circuit in the case of performing the ultrasound diagnosis, and generates a second transmission signal having a polarization voltage for performing polarization processing using the same pulse generation circuit as in the case of generating the first transmission signal in the case of performing the polarization processing.

Abstract: An operation method of an ultrasound diagnostic apparatus includes executing one or more imaging series of steps with an ultrasound transducer; and applying a polarization processing to the ultrasound transducer one or more of before, after, and interleaved between the one or more imaging series of steps, where the polarization processing is separate from the one or more imaging series of steps.

Abstract: An ultrasound diagnostic apparatus (1) includes a first vascular wall detection unit (10) that detects a vascular wall in a minor axis direction by analyzing a B-mode image including a minor axis image of a blood vessel, a first blood vessel diameter calculation unit (11) that calculates a first blood vessel diameter from the vascular wall in the minor axis direction, a second vascular wall detection unit (12) that detects a vascular wall in a major axis direction by analyzing the B-mode image including a major axis image of the blood vessel, a second blood vessel diameter calculation unit (13) that calculates a second blood vessel diameter from the vascular wall in the major axis direction, a blood flow velocity calculation unit (15) that calculates a blood flow velocity based on Doppler data in a Doppler gate set on the B-mode image, and a blood flow rate measurement unit (16) that measures a blood flow rate based on the vascular wall in the major axis direction or the minor axis direction and the blood flo

Abstract: A photoacoustic image generation apparatus includes: a puncture needle that generates photoacoustic waves; an ultrasound probe that detects the photoacoustic waves and reflected ultrasonic waves reflected by the transmission of ultrasonic waves; a processor that generates a color Doppler signal of a region of interest as a color Doppler measurement target, generates a photoacoustic image on the basis of the photoacoustic waves, and detects the position of a tip portion of the puncture needle on the basis of the photoacoustic image; and a controller that sets the region of interest such that the position of the tip portion of the puncture needle and a center position of the region of interest are separated from each other by a predetermined distance and sets the region of interest, following the movement of the tip portion of the puncture needle, in a state in which the distance is maintained.

Abstract: A control circuit of an ultrasound diagnostic apparatus having an ultrasound endoscope controls a transmission circuit to generate a transmission signal, which includes a diagnostic driving pulse applied to each of a plurality of ultrasound transducers that generate ultrasound waves for acquiring an ultrasound image, in the case of acquiring the ultrasound image, and controls the transmission circuit to generate a polarization driving pulse, which has a polarization driving voltage different from voltage of the diagnostic driving pulse within the same settable voltage range as the diagnostic driving pulse and has a frequency different from a probe frequency band for acquiring the ultrasound image, in order to perform the polarization processing of the plurality of ultrasound transducers in the case of performing the polarization processing.

Abstract: Provided is a photoacoustic measurement device including: an ultrasound image generation unit that generates an ultrasound image on the basis of a detection signal of reflected ultrasonic waves generated by the transmission of ultrasonic waves; a puncture needle detection unit that detects a length direction of a puncture needle on the basis of the ultrasound image; and a controller that controls a steering direction of a sample gate which is a Doppler measurement target on the basis of the length direction of the puncture needle such that an angle ? formed between a straight line extending in the length direction of the puncture needle and a straight line extending in the steering direction of the sample gate satisfies 0°??<90°.

Abstract: Provided is a photoacoustic measurement device including: an ultrasound image generation unit that generates an ultrasound image on the basis of a detection signal of reflected ultrasonic waves generated by the transmission of ultrasonic waves; a puncture needle detection unit that detects a length direction of a puncture needle on the basis of the ultrasound image; and a controller that controls a steering direction of a region of interest which is a color Doppler measurement target on the basis of the length direction of the puncture needle such that an angle ? formed between a straight line extending in the length direction of the puncture needle and a straight line extending in the steering direction of the region of interest satisfies 0°??<90°.

Abstract: The invention has, at a distal end part thereof, an ultrasonic oscillator array in which a plurality of ultrasonic oscillators are arranged; a shielded cable including a plurality of signal lines, and a plurality of metallic shield members disposed outside the signal lines; a wiring part including a plurality of connecting parts that electrically connect the plurality of signal lines to the plurality of ultrasonic oscillators, respectively; a ground part that is electrically connected to the plurality of shield members and has heat conductivity; a sheet-like first heat-conduction member disposed on a side surface of the ultrasonic oscillator array; and a second heat-conduction member that thermally connects the first heat-conduction member to the ground part. Accordingly, an ultrasonic endoscope capable of improving diagnostic accuracy in ultrasonic diagnosis, and a method for manufacturing the ultrasonic endoscope are provided.

Abstract: Provided is an ultrasonography system capable of suppressing image quality deterioration of an ultrasound image and achieving reduction in diameter of an ultrasound endoscope. An ultrasonography system includes an ultrasound transducer array in which a plurality of ultrasound transducers are arranged, a cable that is connected to the plurality of ultrasound transducers, the cable having a non-coaxial cable that includes a first cable bundle consisting of a plurality of signal wires and a plurality of ground wires, and a first shield layer with which the first cable bundle is coated, and an outer coat with which a second cable bundle consisting of a plurality of the non-coaxial cables is coated, a memory that stores static capacitance data indicating static capacitance of each signal wire included in the first cable bundle, and a processor that periodically corrects transmission and reception sensitivity of each ultrasound transducer based on the static capacitance data stored in the memory.

Abstract: An ultrasound diagnostic apparatus (1) includes a B-mode processing unit (6) that generates a B-mode image in which at least a blood vessel is imaged based on a reception signal obtained by transmitting and receiving ultrasonic waves to and from a subject; a display device (9) that displays the B-mode image; a vascular wall detection unit (10) that detects a vascular wall based on the B-mode image; a gate setting unit (11) that sets a Doppler gate in the blood vessel on the B-mode image; a Doppler processing unit (7) that acquires Doppler data in the Doppler gate; a blood flow velocity calculation unit (13) that calculates a blood flow velocity based on the Doppler data; and a blood flow rate measurement unit (12) that measures a blood flow rate based on the detected vascular wall and the calculated blood flow velocity, in which the blood flow rate is automatically measured based on a fixed start trigger.

Abstract: An ultrasonic endoscope includes an ultrasonic vibrator unit provided at a distal end part, the ultrasonic vibrator unit being composed of at least an ultrasonic vibrator array and a first thermally conductive member, the ultrasonic vibrator array having the plurality of ultrasonic vibrators that are arranged in a cylindrical form, the first thermally conductive member being disposed thermally in contact with the ultrasonic vibrator array; a plurality of cables that are electrically connected to the ultrasonic vibrator array; and an electrically conductive structural body that is disposed to extend from a distal end side toward a proximal end side of the ultrasonic endoscope. The ultrasonic vibrator unit and the electrically conductive structural body are connected to each other via an electrically insulating second thermally conductive member.

Abstract: An ultrasound diagnostic apparatus (1) includes a gate setting unit (11) that sets a Doppler gate in a blood vessel region by performing an image analysis on a B-mode image in which at least the blood vessel region is imaged; a Doppler processing unit (6) that generates a Doppler waveform image on the basis of Doppler data in the Doppler gate; a display unit (8) that displays the B-mode image and the Doppler waveform image; and an image enlargement unit (9) that, in a case where both the B-mode image and the Doppler waveform image are frozen by a user, displays an enlarged B-mode image in which the blood vessel region including the Doppler gate is enlarged, on the display unit (8).

Abstract: An ultrasonic endoscope includes a plurality of ultrasonic vibrators; a distal end part that houses the plurality of ultrasonic vibrators; an electrically conductive endoscopic structure housed in or connected to the distal end part; a thermally conductive member connected to the plurality of ultrasonic vibrators; and an electrically insulating thermally conductive member connected to the endoscopic structure. The thermally conductive member and the electrically insulating thermally conductive member are connected to each other. Thus, the ultrasonic endoscope that has a heat release structure which transmits the heat generated from the ultrasonic vibrators to the electrically conductive endoscopic structure housed in the distal end part and which can efficiently release the heat therefrom while electric safety is secured; and that can prevent a burn of an alimentary canal by suppressing a temperature rise of surfaces of the ultrasonic vibrators is provided.

Abstract: An ultrasonic endoscope has a laminated body that includes an ultrasonic transducer array in which a plurality of ultrasonic transducers are arranged, and a backing material layer that supports the plurality of ultrasonic transducers; a cable portion that includes a plurality of cables each of which is electrically connected to a corresponding one of the plurality of ultrasonic transducers, and a shield member that covers the plurality of cables from outside and that is made of a metal; and a first heat conductive member that is disposed on a side surface of the laminated body. The first heat conductive member is extended to the shield member that is grounded to a housing and is thermally connected to the shield member.

Abstract: An ultrasonic endoscope has an ultrasonic vibrator array in which a plurality of ultrasonic vibrators are arrayed; a backing material layer that supports the ultrasonic vibrators; shield cables that each include a signal wire and a shield member for the signal wire; a flexible printed wiring board that extends on a side opposite to the ultrasonic vibrator array with respect to the backing material layer and that includes a ground portion electrically connected to the shield members; and a heat conductive layer that is provided on at least one surface of the flexible printed wiring board and connected to the ground portion, the heat conductive layer dissipating heat generated in the plurality of ultrasonic vibrators to the ground portion.

Abstract: An ultrasonic endoscope has an ultrasonic transducer array in which a plurality of ultrasonic transducers are arranged; a backing material layer on a back side of a plurality of ultrasonic transducers, a wiring board including a plurality of electrode pads that are connected to the plurality of ultrasonic transducers; a plurality of shield cables each including a signal wire and a shield member, a wiring portion in which the plurality of signal wires are electrically connected to the plurality of electrode pads; a ground portion that is electrically connected to the shield members and that have heat conductivity; and a first heat conductive member that extends beyond the backing material layer to a side opposite to the ultrasonic transducer array with respect to the backing material layer and that is thermally connected to the ground portion.

Abstract: Provided are a resin composition that can form a printed wiring board with a low dielectric constant and dielectric loss tangent and excellent alkali resistance and desmear resistance; and a prepreg, a resin sheet, a metal foil-clad laminate, and a printed wiring board formed using this resin composition. The resin composition contains a styrene-based elastomer (A), a styrene oligomer (B), a maleimide compound (C), and a cyanate ester compound (D).