Toshiba Medical Systems Corporation

Canon Medical Systems Corporation

Kabushiki Kaisha Toshiba

Hiroki Yoshiara

Tomohisa Imamura

Naohisa Kamiyama

Tetsuya Yoshida

Tetsuya Kawagishi

Akihiro Kakee

Kuramitsu Nishihara

Yoshitaka Mine

Ryota Osumi

Yuko Takada

Yuko Kanayama

Cong Yao

Hiroaki Ishikawa

Guang Cheng Li

Yasunori Honjo

Katsuhiko Fujimoto

Mariko Shibata

Koichiro Kurita

Makoto Hirama

Atsuko Sugiyama

Yoko Okamura

Atsushi Sumi

Go Tanaka

Zhe Tang

Toshie Maruyama

Naoki Yoneyama

Masahiro Kumakura

Lingying Chen

Yasuyuki Masakari

An ultrasound diagnostic apparatus according to an embodiment includes image processing circuitry. The image processing circuitry acquires, based on a result of ultrasound scanning performed on a subject, blood flow information including a value that indicates a blood flow at each position within the subject and tissue property information including a value that indicates tissue properties at each position within the subject. The image processing circuitry generates a first image in which a difference in value in the blood flow information is represented by at least a difference in hue and a second image in which a difference in value in the tissue property information is represented by a difference other than the difference in hue. The image processing circuitry generates a combined image by combining the first image and the second image.

Ultrasound diagnostic apparatus

An ultrasound diagnosis apparatus includes: a transmission and reception circuitry configured to perform, via an ultrasound probe, a first ultrasound scan on a first region in a subject who has a contrast agent injected and a second ultrasound scan on at least a part of a second region in the subject overlapping with the first region, the second ultrasound scan including transmitting and receiving two types of ultrasound waves of which one or both of amplitude levels and phases are different from each other; and processing circuitry configured to generate a blood flow image corresponding to one frame by implementing a Doppler method on the basis of a data sequence including reception data obtained from the first ultrasound scan performed multiple times in mutually the same position within the first region to have the second ultrasound scan performed in-between and to generate a contrast-enhanced image based on a result of the second ultrasound scan performed at least one time.

Ultrasound diagnosis apparatus

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.

Ultrasonic diagnostic apparatus

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.

Ultrasonic diagnostic and image processing apparatus for tissue harmonic imaging by extracting nonlinear components from three signals via addition after phase rotation

An ultrasonic diagnostic apparatus according to an embodiment includes a candidate-position extracting circuitry and a position setting circuitry. The candidate-position extracting circuitry extracts a first position through comparison of a fundamental wave component between a plurality pieces of image data collected by performing ultrasonic scanning on a subject injected with a contrast agent. The candidate-position extracting circuitry also extracts a second position through comparison of a harmonic component between the pieces of image data. The position setting circuitry sets the first position or the second position as a position of a region of interest where predetermined analysis is performed in at least one image data of the pieces of image data.

Ultrasonic diagnostic apparatus and image processing apparatus

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. The image generating unit generates contrast image data based on the data output from the adder/subtractor.

Ultrasound diagnostic apparatus and ultrasound imaging method

An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry acquires a plurality of frames representing ultrasound images starting with an initial frame in time series. The processing circuitry compares a current frame and a previous frame to the current frame for determining the similarity therebetween, and generates a reference frame based on weighting processing on the initial frame and the previous frame using results of the comparison. The processing circuitry implements tracking processing between the reference frame and the current frame.

Ultrasound diagnosis apparatus, image processing apparatus and image processing method

An ultrasound diagnostic apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain the position of the boundary of a region of interest that is set in first ultrasound image data of a subject. The processing circuitry is configured to generate second ultrasound image data by assigning a pixel value to each of pixels of which a change of the brightness value between before and after a contrast enhancement is equal to or larger than a threshold value with regard to pre-contrast-enhanced image data and post-contrast-enhanced image data of the subject both of which were acquired after a treatment using a puncture needle has been performed, the assigned pixel value corresponding to the distance between the pixel and the boundary of the region of interest. The processing circuitry is configured to cause a display unit to display the second ultrasound image data.

Ultrasound diagnostic apparatus and image processing method

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.

An ultrasound apparatus according to the present embodiments includes a receiving unit and a probe controlling unit. The receiving unit receives settings in relation to the aperture of the ultrasound probe and the region of interest of the subject with a contrast agent injected. The probe controlling unit controls the ultrasound probe based on the settings received by the receiving unit in such a manner as to transmit an ultrasound wave from the vibrator arranged in the aperture to the region of interest.

Ultrasound apparatus and ultrasound apparatus controlling method and non-transitory computer readable medium

A medical image processing apparatus according to an embodiment includes a detection unit, a generating unit, and an associating unit. The detection unit analyzes a first piece and a second piece of image data of a breast, and detects the positions of a chest wall and a nipple in each of the pieces of image data, wherein the first piece of image data is three-dimensional medical image data and the second piece of image data is medical image data of a different type from the first piece of image data. The generating unit generates a first sectional image and a second sectional image based on the first piece and second piece of image data, respectively. The associating unit associates the positional relation of the breast in the pieces of image data so that the positions of the chest wall and the nipple match between the pieces of image data.

Medical image processing apparatus and medical image diagnostic apparatus for associating a positional relation of a breast between pieces of image data

According to one embodiment, an ultrasonic diagnostic apparatus which comprises an ultrasonic transmission/reception unit configured to transmit ultrasonic waves to a scan area including a predetermined region throughout an analysis period, receive reflected waves from the scan area, and acquire ultrasonic data associated with the scan area for each phase in the analysis period, an analysis unit configured to generate a luminance time curve associated with at least one analysis area included in the scan area by using the ultrasonic data in each phase in the analysis period and analyze a stagnant time of the contrast medium associated with at least one analysis area based on the generated luminance time curve, an image generation unit configured to generate a stagnant time image for each phase in the analysis period, with different hues being assigned to at least one analysis area in accordance with the stagnant times.

Ultrasonic diagnostic apparatus, ultrasonic image processing apparatus, and medical image diagnostic apparatus

An image generating unit generates a medical image. A deciding unit detects a reaching time at which a contrast agent has reached a predetermined region of the medical image. The deciding unit sets a color map in which the reaching time is associated with a hue based on a first inflow time corresponding to a first designation region set to the medical image and a second inflow time corresponding to a second designation region. A generating unit generates a hue conversion image in which a hue is allocated to each region of the medical image based on the color map and the reaching time in each region of the medical image. A control unit displays the hue conversion image through a monitor.

Medical image diagnosis apparatus and image processing apparatus and method

An imaging part scans a predetermined site of a subject to which a contrast agent has been administered, with ultrasound waves, and thereby acquires plural frames of ultrasound image data. A contrast agent inflow detector detects the inflow of the contrast agent into each region based on the signal intensity in each region represented in the plural frames of ultrasound image data. A reference time determining part determines, as a reference time, a time point when the contrast agent inflow detector detects the inflow of the contrast agent into a first region of interest. A color coding part obtains a relative time of the inflow of the contrast agent into each region with reference to the reference time, and generates image data representing the color of each region with a hue corresponding to the relative time. An image based on the image data representing the hue is displayed.

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Nasushiobara, Japan

Hiroki Yoshiara