An ultrasound detection device comprising: an ultrasound receiver configured to generate a signal indicative of a pressure of ultrasound that impinges on the receiver; and a coded mask comprising an ultrasound-blocking material perforated by an array of a plurality of apertures, the apertures arranged such that when the coded mask is placed over the receiver between the receiver and a source of ultrasound in a predetermined lateral position, the ultrasound is transmitted from the ultrasound source to the receiver via a known unique pattern of active apertures of the plurality of apertures such that the signal that is generated by the receiver is a multiplexed signal.

Disclosed is an ultrasound diagnostic imaging apparatus including an ultrasound probe which outputs transmission ultrasound toward a subject due to a pulse signal being input and which outputs a received signal by receiving reflected ultrasound from the subject, and a transmission unit which makes the ultrasound probe generate the transmission ultrasound by outputting a pulse signal whose drive waveform is formed of rectangular waves. The frequency power spectrum of the pulse signal has intensity peaks in a frequency band included in a transmission frequency band at 20 dB of the ultrasound probe on a low frequency side and a high frequency side of a center frequency of the transmission frequency band, respectively, and intensity of a frequency region between the intensity peaks is 20 dB or greater with a maximum value of intensity among the intensity peaks being a reference.

In an ultrasonic CT device for breast examination, unevenness of an ultrasonic image due to a distribution of inclination angles of a breast is reduced. The distribution of the inclination angles of a surface of a subject in a contour of the subject is obtained from a tomographic image, and a signal level of a reception signal or a pixel value of the tomographic image is corrected using the distribution of the inclination angles.

An ultrasound diagnosis apparatus includes a processor for performing grouping processing and representative frame selection processing on a plurality of ultrasound frames that are sequentially generated with the passage of time. The grouping processing is processing that identifies a group of interest that is composed of a plurality of frames that satisfy at least one predetermined condition of interest. The representative frame selection processing is processing that selects a representative frame from among the plurality of frames that constitute the group of interest. The at least one predetermined condition of interest includes a condition that each of the plurality of frames includes data indicating a specific region identified by region recognition processing in which a characteristic region in an image is recognized as the specific region. The representative frame selection processing includes processing that selects the representative frame based on geometrical properties of the specific regions.

An ultrasound diagnosis apparatus includes a processor for performing grouping processing and representative frame selection processing on a plurality of ultrasound frames that are sequentially generated with the passage of time. The grouping processing is processing that identifies a group of interest that is composed of a plurality of frames that satisfy at least one predetermined condition of interest. The representative frame selection processing is processing that selects a representative frame from among the plurality of frames that constitute the group of interest. The at least one predetermined condition of interest includes a condition that each of the plurality of frames includes data indicating a specific region identified by region recognition processing in which a characteristic region in an image is recognized as the specific region. The representative frame selection processing includes processing that selects the representative frame based on geometrical properties of the specific regions.

Among the various aspects of the present disclosure is the provision of systems and methods of cross-ray ultrasound tomography.

Among the various aspects of the present disclosure is the provision of systems and methods of cross-ray ultrasound tomography.

To provide an ultrasonic CT apparatus that can change an inclination of a side surface of a breast such that an ultrasonic wave is incident on a surface of an entire circumference of the breast at an angle close to perpendicular, and that has less psychological burden on a subject. A container provided with an opening to which the breast is inserted is disposed below a bed provided with a through hole to which the breast of the subject is inserted. In the container, a member that propagates or transmits the ultrasonic wave is disposed, and the member is relatively pressed against a side surface or a nipple portion of the breast such that an inclination of the side surface of the breast is close to perpendicular. A transducer array emits the ultrasonic wave around the breast with the inclination of the side surface being close to perpendicular.

To provide an ultrasonic CT apparatus that can change an inclination of a side surface of a breast such that an ultrasonic wave is incident on a surface of an entire circumference of the breast at an angle close to perpendicular, and that has less psychological burden on a subject. A container provided with an opening to which the breast is inserted is disposed below a bed provided with a through hole to which the breast of the subject is inserted. In the container, a member that propagates or transmits the ultrasonic wave is disposed, and the member is relatively pressed against a side surface or a nipple portion of the breast such that an inclination of the side surface of the breast is close to perpendicular. A transducer array emits the ultrasonic wave around the breast with the inclination of the side surface being close to perpendicular.

A tissue positioning system for contouring a patient tissue volume includes an axially displaceable interface having a surface configured to engage a breast or other tissue volume. A low pressure source applies a partial low pressure to the surface of the displaceable interface to secure the tissue volume to the surface, and the axially displaceable interface is biased to pull and contour the tissue volume when the tissue volume is secured to the surface. The axially displaceable interface is typically mounted on a telescoping support and the biasing is provided by the same low pressure used to secure the tissue volume.