Hitachi Medical Corporation

Other

Fujifilm Corporation

Terumo Kabushiki Kaisha

University of Tsukuba

Tsuyoshi Shiina

Takeshi Matsumura

Satoshi Tamano

Mitsuhiro Oshiki

Takashi Osaka

Tsuyoshi Mitake

Tetsuya Hayashi

Naoyuki Murayama

Naotaka Nitta

Okinori Yuasa

Makoto Yamakawa

Yoshiaki Satoh

Hiroyuki Yagami

Koji Waki

Masaru Maeda

An ultrasound elasticity imaging apparatus includes an elastic data processing section which processes a received signal detected by an ultrasound probe and generates elastic frame data, a display evaluation section which evaluates a display value of the elastic frame data based on various data in the generation of the elastic frame data, a display processing section which performs image processing of the elastic frame data according to the evaluation result by the display evaluation section, and a display section which displays an elastic image based on the elastic frame data processed by the image processing section.

Ultrasound probe and ultrasound elasticity imaging apparatus

A method of displaying an elastic image according to the present invention includes the steps of measuring ultrasound cross-section data of a cross-section region of a subject while applying compression to the subject(), determining distortion of tissue in the cross-section region on the basis of the ultrasound cross-section data, generating an elastic image of the cross-section region on the basis of the distortion, displaying the elastic image on a display device (), setting a plurality of ROIs on the elastic image displayed on the display device, converting the distortion of each ROI into an index value (), and displays the index value on the display device (). In this way, the method enables quantitative evaluation of the hardness of body tissue of a region to be diagnosed.

Method of displaying elastic image and diagnostic ultrasound system

An ultrasonic diagnosis system and strain distribution display method utilizing an ultrasonic probe for performing transmission/reception of ultrasonic signals to/from a subject, a storage arrangement for storing the properties of signals detected with the ultrasonic probe, a correlation computer for calculating a correlation coefficient between the properties with and without pressure applied to the subject, and a phase difference between the received signals with and without application of pressure, based upon the properties stored in the storage arrangement with and without pressure applied to the subject, a computer for calculating a displacement of each measurement point, and a strain distribution of tissue of the subject due to application of pressure, based upon the correlation coefficient and phase difference calculated by the correlation computer, and a display for displaying the strain distribution.

Ultrasonic diagnosis system and distortion distribution display method

An ultrasonic diagnostic apparatus by which IMT examination can be efficiently performed by simple processing in a health check. The ultrasonic diagnostic apparatus includes: a signal processing unit for performing at least envelope detection processing on reception signals outputted from an ultrasonic probe to generate envelope data; an image data generating unit for generating image data representing an ultrasonic image on an object to be inspected based on the envelope data; a pre-measurement processing part for performing structural image generating processing on the envelope data; and a measurement part for performing measurement based on the envelope data processed by the pre-measurement processing part.

Ultrasonic diagnostic apparatus, data measurement method, and data measurement program

Ultrasonic diagnosis system and strain distribution display method

An ultrasound diagnostic apparatus includes an ultrasound probe which transmits/receives an ultrasound wave with respect to a subject to be diagnosed, an ultrasound wave transmit section which transmits an ultrasound wave for driving the ultrasound probe, a pressing section which applies an external pressure to the subject, a displacement measuring section which obtains two tomographic image data different in time series from a reflected echo signal received from the ultrasound probe and measures a displacement of each part in the subject based on the two tomographic image data, an image generating section which generates an elastic image from elasticity information based on the displacement of each part measured by the displacement measuring section, and a display section which displays the generated elastic image. Further, a pressing decision section decides whether or not the pressing operation by the pressing section is proper.

An ultrasound probe includes an ultrasound wave transmit/receive surface coming into contact with a contact surface of a subject, an ultrasound wave transmit/receive section which transmits an ultrasound wave to the subject via the ultrasound wave transmit/receive surface and the contact surface and receives an ultrasound wave reflected in the subject, and a pressing mechanism for performing a pressing operation for applying a pressure to the contact surface perpendicularly to the ultrasound wave transmit/receive surface via the ultrasound wave transmit/receive surface.

Ultrasonic probe and ultrasonic elasticity imaging device

An ultrasonographic apparatus includes: an ultrasonic probefor transmitting/receiving an ultrasonic wave to/from a patient, meansfor generating an ultrasonic transmission signal and transmitting it to the ultrasonic probe, meansfor receiving a reflection echo signal received by the ultrasonic probe; meansfor re-constructing a form image according to the reception signal processed by the reception processing means; meansfor re-constructing an elasticity image according to the reception signal processed by the reception processing means; meansfor displaying the form image and the elasticity image; meansfor switching between the form image mode and elasticity image mode; and meansfor performing control so as to selectively acquire the form image and the elasticity image in the measurement period of the elasticity image mode switched by the mode switching means. Thus, it is possible to perform measurement associated with acquisition of both the form image and the elasticity image of the biological tissue and improve the image quality of the form image such as a B mode image and the image quality of the elasticity image such as elasticity ratio and elasticity distortion.

Biological tissue elasticity measurement method and ultrasonographic device

An ultrasonic diagnostic system according to the present invention has an ultrasonic transducer mounted on a catheter, an instantaneous distortion value calculator which calculates an instantaneous distortion value at the location to be evaluated in the blood vessel based on received signal representative of received reflection by the ultrasonic transducer, an analyzer which analyzes a state of the location to be evaluated using time-series data of instantaneous distortion values which are calculated at a plurality of times in a chronological sequence by the distortion value calculator, and a display which displays an analyzed result produced by the analyzer.

Growing community of inventors

Tsukuba, Japan

Tsuyoshi Shiina