Hitachi, Ltd.

Fujifilm Healthcare Corporation

Nobuhiko Fujii

Misaki Hiroshima

Aya Kishimoto

A coherence indicator of received signals is calculated for pixels with a small amount of calculation, and a high-quality ultrasound image is obtained. A plurality of types of images in which a sound speed for beamforming is changed into a plurality of types are generated. By arranging, in order of the sound speed for beamforming, signal intensities of the pixels at corresponding positions between the plurality of types of images, a change in signal intensities in a direction of the sound speed for beamforming is obtained. A coherence indicator representing coherence of the received signals used for beamforming of the pixels is calculated based on the obtained change in the signal intensities.

Ultrasound imaging device, signal processing device, and signal processing method

A control unit cyclically sets a first transmission/reception condition for a close range and a second transmission/reception condition for a long range. A synthesizing unit generates an added frame sequence and an edge-enhanced frame sequence from a reception frame sequence, and generates a synthesized frame sequence from the added frame sequence and the edge-enhanced frame sequence. The first transmission/reception condition includes a first transmission frequency and a first transmission depth of focus. The second transmission/reception condition includes a second transmission frequency that is lower than the first transmission frequency and a second transmission depth of focus that is greater than the first transmission depth of focus.

Ultrasonic diagnostic apparatus and control method for ultrasound image quality enhancement

Provided is a technique capable of simultaneously satisfying two requests of removing a speckle and clarifying a tissue structure. A noise in an ultrasonic image is removed, and a morphology processing is performed on a noise-removed image. The morphology processing includes a first calculation of performing dilation and erosion and a second calculation of performing opening and closing, and determines a value of a structural element used in the second calculation of the morphology by using a result of the first calculation performed on the noise-removed image.

Ultrasonic imaging device and image processing method

A basic image generation unit generates a base frame by synthesizing a reception frame sequence obtained by transmission/reception of ultrasonic waves, and an edge-enhanced image generation unit generates a compensation frame where an edge component of an object is emphasized based on the reception frame sequence. A synthesis unit generates an output frame by synthesizing the base frame and the compensation frame.

Ultrasonic diagnosis device and program

The purpose of the present invention is to improve the accuracy of Doppler measurements. An ultrasonic diagnosis device comprises: a transmission unitfor transmitting, through a probe, an ultrasonic wave for each of a plurality of transmit beams formed at different positions or in different directions; a reception unitfor receiving, through the probe, an ultrasonic wave for each receive beam included in a receive beam set formed to correspond to each transmit beam; a Doppler processing unitfor determining a Doppler measurement for each of the receive beams; and a combining/selecting unitfor combining a first Doppler measurement determined for a first receive beam belonging to a receive beam set formed to correspond to a first transmit beam and a second Doppler measurement determined for a second receive beam belonging to a receive beam set formed to correspond to a second transmit beam when the first receive beam and the second receive beam are in a predetermined positional relationship.

Ultrasonic diagnosis device

The present invention is a medical image processing apparatus which acquires medical image data on a diagnosing object, the apparatus including: a signal enhancement processing part which performs a signal enhancement process on the medical image data; a noise removal part which performs a noise removal process on the medical image data; a first signal compression processing part which compresses the medical image data on which the signal enhancement process and the noise removal process have been performed; a second signal compression processing part which compresses the medical image data; and a synthesis processing part which synthesizes the medical image data having been compressed in the first signal compression processing part and the medical image data having been compressed in the second signal compression processing part.

Growing community of inventors

Tokyo, Japan

Nobuhiko Fujii