Abstract: Provide a data collection device capable of reducing the burden on a user associated with generating training data for a data recognition model. A data collection device includes a first CNN, a second CNN, a comparison unit that compares a recognition result for input data by the first CNN to a recognition result for the input data by the second CNN, and a data collection unit that collects the input data as training data according to a comparison result of the comparison unit.

Abstract: An object position area detection unit of an object detection device detects a position area of an object included in an inputted image, on the basis of a first class definition in which a plurality of classes are defined in advance. A class identification unit identifies which of the plurality of classes the object belongs to, on the basis of a second class definition in which a plurality of classes are defined in advance. An object detection result output unit outputs an object detection result on the basis of a detection result of the object position area detection unit and an identification result of the class identification unit. The number of classes defined by the second class definition is smaller than the number of classes defined by the first class definition. The plurality of classes defined by the second class definition are formed by collecting some of a plurality of classes defined by the first class definition.

Abstract: An object position region detection unit of an object detection device detects a position region of an object included in an input image on the basis of a first class definition in which a plurality of classes is defined in advance. A class identification unit identifies a class out of a plurality of classes to which the object belongs on the basis of the first class definition. An object detection result output unit outputs class information of the object as a detection result of the object on the basis of a second class definition in which a plurality of classes is defined in advance, the second class definition associated with the first class definition. The number of classes defined in the second class definition is smaller than the number of classes defined in the first class definition.

Abstract: An ultrasound diagnostic device includes a propagation information estimator that evaluates reliability of wavefront arrival time data in the wavefront arrival time frame data and, for reliability nonconformance wavefront arrival time data in the wavefront arrival time frame data that does not satisfy a predefined condition, generates compensated wavefront arrival time data by interpolation based on wavefront arrival time data that does satisfy the predefined condition, replaces the reliability nonconformance wavefront arrival time data with the compensated wavefront arrival time data, and generates compensated wavefront arrival time frame data; and an elastic modulus calculator that calculates shear wave propagation speed and/or elastic modulus frame data in the region of interest, based on the compensated wavefront arrival time frame data.

Abstract: An ultrasound diagnostic device that transmits a push pulse in order to detect shear waves, including a push pulse transmitter, a displacement detector, an evaluator, and a push pulse adjuster. The push pulse transmitter transmits the push pulse based on a transmission profile. The displacement detector repeatedly transmits ultrasound into the subject after the push pulse, receives reflected ultrasound from the subject that corresponds to transmitted ultrasound, and detects displacement due to shear waves caused by the push pulse. The evaluator evaluates shear wave propagation based on detected displacement. The push pulse adjuster adjusts the transmission profile based on evaluation results. When the transmission profile is adjusted, the push pulse transmitter transmits a second push pulse based on the adjusted transmission profile and the displacement detector detects displacement caused by the second push pulse.

Abstract: An ultrasound diagnostic device that transmits a push pulse into a subject and detects a shear wave propagating to adjacent tissue by repeating transmission of ultrasound to the subject and reception of reflected ultrasound from the subject, including a displacement detector that obtains reception signals in a time series by transmitting ultrasound to the subject and receiving reflected ultrasound from the subject, subsequent to transmission of the push pulse, and detects a displacement amount of the tissue inside the subject at each point in time at which the reception signals are respectively obtained; a wavefront extractor that extracts, based on the displacement amount of the tissue at each of the points in time, a wavefront of the shear wave at the corresponding point in time; and a wavefront image processor that generates a wavefront image that indicates a wavefront of the shear wave at each of the points in time.

Abstract: An ultrasound diagnostic apparatus having image processing circuitry including: an ultrasound image generator generating first ultrasound images from reflected ultrasound; a video image acquirer acquiring, from an imaging device, first video images capturing manipulation of a probe performed during generation of the first ultrasound images; a relational recorder recording, onto a recording medium, the first ultrasound images and the first video images, in association with each other; a data reader reading second ultrasound images and second video images from the recording medium, the second ultrasound images generated and recorded onto the recording medium in the past, and the second video images capturing manipulation of the probe performed during generation of the second ultrasound images; and a screen composer composing a screen by arranging the first ultrasound images, the second ultrasound images and the second video images, and displaying the screen on a display device.

Abstract: An ultrasound diagnostic device includes a propagation information estimator that evaluates reliability of wavefront arrival time data in the wavefront arrival time frame data and, for reliability nonconformance wavefront arrival time data in the wavefront arrival time frame data that does not satisfy a predefined condition, generates compensated wavefront arrival time data by interpolation based on wavefront arrival time data that does satisfy the predefined condition, replaces the reliability nonconformance wavefront arrival time data with the compensated wavefront arrival time data, and generates compensated wavefront arrival time frame data; and an elastic modulus calculator that calculates shear wave propagation speed and/or elastic modulus frame data in the region of interest, based on the compensated wavefront arrival time frame data.

Abstract: An ultrasound diagnostic apparatus that transmits a push pulse for focusing ultrasonic waves on a specific part of a subject to physically press tissues using an ultrasound probe, repeatedly transmits and receives the ultrasonic waves to and from the subject, and detects a propagation state of shear waves in a region of interest, includes: a push pulse transmission unit that transmits the push pulse; a displacement detection unit that transmits detection waves to the subject, receives reflected detection waves, generates a plurality of received signals in time series, and detects displacement of the tissues; an elasticity measurement unit that analyzes the propagation state of the shear waves and measures elasticity of each tissue; a probe movement detection unit that detects a moving speed of the ultrasound probe; a sequence holding unit that holds a plurality of operation sequences; and a sequence selection unit that selects one operation sequence.

Abstract: An ultrasound diagnostic device that transmits a push pulse in order to detect shear waves, including a push pulse transmitter, a displacement detector, an evaluator, and a push pulse adjuster. The push pulse transmitter transmits the push pulse based on a transmission profile. The displacement detector repeatedly transmits ultrasound into the subject after the push pulse, receives reflected ultrasound from the subject that corresponds to transmitted ultrasound, and detects displacement due to shear waves caused by the push pulse. The evaluator evaluates shear wave propagation based on detected displacement. The push pulse adjuster adjusts the transmission profile based on evaluation results. When the transmission profile is adjusted, the push pulse transmitter transmits a second push pulse based on the adjusted transmission profile and the displacement detector detects displacement caused by the second push pulse.

Abstract: An image processing apparatus capable of displaying an image for providing guidance in moving an instrument to a target part in a subject to a user with high visual perceptibility. The image processing apparatus may be an ultrasound diagnostic apparatus including: a three-dimensional image analyzer determining target position indicating a three-dimensional position of the target part based on a three-dimensional image including the target part; a position information acquirer acquiring instrument position indicating a three-dimensional position of the instrument; a display state determiner selecting one display state from at least two display states, based on a positional relationship between the target part and the instrument; an assist image generator generating an assist image for the selected display state by using the target position and the instrument position; and a display controller performing control for outputting the assist image generated by the assist image generation unit to a display device.

Abstract: An ultrasound diagnostic device that transmits a push pulse into a subject and detects a shear wave propagating to adjacent tissue by repeating transmission of ultrasound to the subject and reception of reflected ultrasound from the subject, including a displacement detector that obtains reception signals in a time series by transmitting ultrasound to the subject and receiving reflected ultrasound from the subject, subsequent to transmission of the push pulse, and detects a displacement amount of the tissue inside the subject at each point in time at which the reception signals are respectively obtained; a wavefront extractor that extracts, based on the displacement amount of the tissue at each of the points in time, a wavefront of the shear wave at the corresponding point in time; and a wavefront image processor that generates a wavefront image that indicates a wavefront of the shear wave at each of the points in time.

Abstract: An ultrasound diagnostic device includes: a contour extraction unit extracting a first contour image from ultrasound images obtained from spatially-successive examination positions and each including an image of an organ, a contour image indicating a contour of the organ and extracted from the organ image; a specification unit receiving, from a user, specification information specifying a manual correction target ultrasound image and correction information indicating details of a manual correction performed with respect to a first contour image extracted from the manual correction target ultrasound image; and a contour correction unit correcting the first contour image extracted from the manual correction target ultrasound image according to the correction information. The contour extraction unit further extracts a second contour image from a target ultrasound image by using information indicating the corrected first contour image. The target ultrasound image differs from the manual correction target image.

Abstract: An ultrasound diagnostic apparatus which detects a target blood vessel of a subject based on reflected ultrasound waves obtained, using an ultrasound probe, from the subject, the ultrasound diagnostic apparatus including: a B-mode image generation unit which generates a tomographic image of the subject, based on the reflected ultrasound waves; a blood flow image generation unit which generates blood flow information indicating a blood flow region of the subject in the tomographic image, based on the reflected ultrasound waves; and a blood flow region determination unit which determines whether or not the blood flow region corresponds to the target blood vessel, by analyzing the blood flow information generated by the blood flow image generation unit.

Abstract: An ultrasound diagnostic apparatus having image processing circuitry including: an ultrasound image generator generating first ultrasound images from reflected ultrasound; a video image acquirer acquiring, from an imaging device, first video images capturing manipulation of a probe performed during generation of the first ultrasound images; a relational recorder recording, onto a recording medium, the first ultrasound images and the first video images, in association with each other; a data reader reading second ultrasound images and second video images from the recording medium, the second ultrasound images generated and recorded onto the recording medium in the past, and the second video images capturing manipulation of the probe performed during generation of the second ultrasound images; and a screen composer composing a screen by arranging the first ultrasound images, the second ultrasound images and the second video images, and displaying the screen on a display device.

Abstract: An ultrasound diagnostic apparatus connectable to a probe and recording an ultrasound image of the inside of a subject's body based on reflected ultrasound from inside the subject's body acquired by the probe positioned to face a surface of the subject's body, the ultrasound diagnostic apparatus including image recording circuitry including: an ultrasound image generator generating the ultrasound images based on the reflected ultrasound; a probe movement determiner determining, based on motion information of each of the plurality of ultrasound images obtained by analyzing the plurality of ultrasound images, movement of the probe occurring at generation of each of the ultrasound images; a recording image selector selecting at least one ultrasound image from among the ultrasound images according to the determination performed by the probe movement determiner; and an ultrasound image recorder recording therein the ultrasound image selected by the recording image selector.

Abstract: An ultrasound diagnostic device processes ultrasound images obtained by ultrasound scanning on a diagnostic target. The ultrasound images include a set of material images for analyzing shape of the diagnostic target and a diagnostic image for analyzing a diagnostic value of a specific part of the diagnostic target. An image analysis measurement unit generates a schematic diagram showing schematic shape of the diagnostic target based on the shape of the diagnostic target. A relative position calculation unit calculates a relative position of local shape of the specific part to the shape of the diagnostic target. A diagnostic value superimposing unit identifies a position on the schematic shape of the diagnostic target that corresponds to a position of the specific part based on the relative position, and superimposes data of the diagnostic value on the identified position on the schematic shape of the diagnostic target shown in the schematic diagram.

Abstract: An ultrasound diagnostic device includes: a contour extraction unit extracting a first contour image from ultrasound images obtained from spatially-successive examination positions and each including an image of an organ, a contour image indicating a contour of the organ and extracted from the organ image; a specification unit receiving, from a user, specification information specifying a manual correction target ultrasound image and correction information indicating details of a manual correction performed with respect to a first contour image extracted from the manual correction target ultrasound image; and a contour correction unit correcting the first contour image extracted from the manual correction target ultrasound image according to the correction information. The contour extraction unit further extracts a second contour image from a target ultrasound image by using information indicating the corrected first contour image. The target ultrasound image differs from the manual correction target image.

Abstract: An ultrasound diagnostic apparatus measures blood flow velocity by emitting ultrasound towards a measurement target and receiving a reflected wave, via an ultrasound probe. The ultrasound diagnostic apparatus includes an ultrasound image acquisition unit, a vascular region detection unit, a measurement position determination unit, and a Doppler gate setting unit. The ultrasound image acquisition unit acquires an ultrasound image which has been captured of the measurement target. The vascular region detection unit detects, from the ultrasound image, a vascular region corresponding to a blood vessel. The measurement position determination unit detects a specific part of the vascular region based on vascular region shape and determines, in accordance with the specific part, one or more measurement positions in the vascular region in terms of longitudinal direction thereof. The Doppler gate setting unit sets, with respect to each measurement position, a Doppler gate in a lumen region of the vascular region.

Abstract: An ultrasound diagnostic apparatus includes a measurement position-orientation determination unit, a judgment unit and a property measurement unit. The measurement position-orientation determination unit determines a measurement target region for measuring a property of a vascular wall, based on a 3D image of a blood vessel generated from transverse tomographic images acquired by scanning of an ultrasound probe in a longitudinal direction, and also determines a measurement position and measurement orientation of the ultrasound probe for acquiring a longitudinal tomographic image including the measurement target region. The judgment unit judges whether a current position and current orientation of the ultrasound probe differ from the measurement position and measurement orientation respectively by no greater than a threshold value, and when judging affirmatively causes the apparatus to acquire the longitudinal tomographic image.