Kabushiki Kaisha Toshiba

Toshiba Medical Systems Corporation

Tatsuro Baba

Naohisa Kamiyama

Yasuo Miyajima

Cong Yao

Takuya Sasaki

Muneki Kataguchi

Kazuya Akaki

Yasutsugu Seo

Shuichi Kawasaki

Tetsuya Kawagishi

Takeshi Sato

Yoshitaka Mine

Ryoichi Kanda

Tetsuya Yoshida

Isao Uchiumi

Hironobu Hongou

Satoru Tezuka

Masao Takimoto

Go Tanaka

Kenji Hamada

Hiroyuki Tsujino

Takanobu Uchibori

Shouichi Nakauchi

Tomio Nabatame

Masami Takahashi

Toshiyuki Koinuma

A scanner transmits and receives ultrasonic waves at a specified pulse repetition frequency (PRF). A storage stores received signals acquired through the transmission and reception. A calculator generates a Doppler spectrum image by executing frequency analysis on the received signals. A display displays the Doppler spectrum image. When a desired Doppler velocity range for the displayed Doppler spectrum image is inputted, a processor reads out the received signals from the storage, and executes a resampling process on the read-out received signals at a sampling frequency corresponding to the desired Doppler velocity range. The calculator generates a new Doppler spectrum image by executing frequency analysis corresponding to the desired Doppler velocity range on the received signals having been subjected to the resampling process by the processor. The display displays the new Doppler spectrum image.

Ultrasonic imaging apparatus and a method for generating an ultrasonic image

In an ultrasound probe according to an embodiment, a first ultrasound transducer array scans a first scanned plane. A second ultrasound transducer array engages with the first ultrasound transducer array, is provided so as to intersect the first ultrasound transducer array, and scans a second scanned plane different from the first scanned plane. A probe main body is provided with the first ultrasound transducer array and the second ultrasound transducer array, has an opening in a position where the first and the second ultrasound transducer arrays intersect each other, and has a through hole extending to the opening. An engaging part that causes the first and the second ultrasound transducer arrays to engage with each other is configured in such a manner that the angle at which the first and the second ultrasound transducer arrays intersect each other is changeable.

Ultrasound probe and ultrasound diagnosis apparatus

A spatial position x' of each ultrasonic transducer is accurately obtained for each probe in consideration of each edge transducer gap, and a delay time T(x&#x2032;(n)) and a weighting coefficient W(x&#x2032;(n)) are calculated on the basis of the position of each ultrasonic transducer. A control unit executes ultrasonic transmission/reception by using the calculated delay times and weighting coefficients to realize a suitable acoustic field with high deflection angle accuracy, small sidelobes, and the like as compared with the prior art.

Ultrasonic transmission/reception condition optimization method, ultrasonic transmission/reception condition optimization program, and ultrasonic diagnostic apparatus

According to one embodiment, an ultrasonic diagnostic apparatus is configured to execute an imaging mode of alternately executing a continuous wave Doppler mode of acquiring time-series Doppler data by performing continuous wave transmission/reception with respect to an object and a B mode of acquiring tomogram data represented by luminance by transmitting and receiving a pulse wave to and from the object, the apparatus includes a data acquisition unit configured to acquire continuous wave Doppler data and the tomogram data by alternately executing the continuous wave Doppler mode and the B mode while switching the modes, and a display unit configured to simultaneously display Doppler spectrum information generated based on the continuous wave Doppler data and a tomogram generated based on the tomogram data.

Ultrasonic diagnostic apparatus and ultrasonic diagnostic apparatus control method

According to one embodiment, an ultrasonic diagnostic apparatus comprises a Doppler processing unit which generates a Doppler spectrum from an ultrasonic signal reflected from a predetermined region in a heart, a trace waveform generation unit which generates temporal changes in a predetermined spectrum component in the Doppler spectrum as a plurality of trace waveforms, a corrected trace waveform generation unit which generates a corrected trace waveform with the loss being interpolated by using a trace waveform, of the plurality of trace waveforms, which has a loss portion, and at least one estimation point input for the trace waveform, and an output unit which outputs a plurality of trace waveforms including the corrected trace waveform.

Ultrasonic diagnostic apparatus, doppler measurement apparatus, and Doppler measurement method

Certain embodiments provide an automatic diagnosis support apparatus includes extracting a plurality of parameters associated with a predetermined object by using medical information acquired by a medical image diagnosis apparatus and extracting the plurality of parameters for each disease associated with a disable-bodied person by using medical information associated with the disable-bodied person, calculating a ruler associated with each disease case by executing an MT system using the plurality of parameters for each disease associated with the disable-bodied person, calculating a distance between the object and a state space of the disable-bodied person associated with the each disease by executing the MT system using a plurality of parameters associated with the object, determining a disease type of the object by using the ruler and a distance between the object and a state space of a disable-bodied person, and generating diagnosis support information based on the determination result.

Automatic diagnosis support apparatus, ultrasonic diagnosis apparatus, and automatic diagnosis support method

According to one embodiment, an ultrasonic diagnosis apparatus includes a storage unit, a ultrasonic probe, a transmission/reception unit, a measured value calculation unit, a distance calculation unit, and a determination unit. The storage unit stores data of a state space based on a first measured values of a measurement item associated with an able-bodied person. The transmission/reception unit transmits ultrasonic waves to a subject via an ultrasonic probe, and generates reception signals corresponding to an ultrasonic waves reflected by the subject. The measured value calculation unit calculates a second measured value of the measurement item associated with the subject based on the reception signals. The distance calculation unit calculates a Mahalanobis distance of the subject based on the state space and the second measured value. The determination unit compares the Mahalanobis distance with a threshold to determine whether the subject has the disease evaluated by the measurement item.

Ultrasonic diagnosis apparatus, automatic support apparatus, and automatic support method

A processor generates a first Doppler spectrum image representing the velocity of a moving body at each observation point by analyzing the frequency of signals received at the plurality of observation points acquired via Doppler scanning. An interpolator acquires a second Doppler spectrum image consecutively at each observation point time when the ultrasound has not been transmitted to and received from each observation point by the Doppler scanner transmitting and receiving the ultrasound toward and from the plurality of observation points at a plurality of respective times, based on interpolation of the first Doppler spectrum image at each observation point. The interpolator generates a third Doppler spectrum at each observation point by combining the first Doppler spectrum at each observation point and the second Doppler spectrum image at each observation point per observation point.

Ultrasonic imaging apparatus and a method of generating ultrasonic images

Transmitting and receiving ultrasound with repetition frequency that corresponds to velocity range indicating the measurable velocity to and from a diagnostic site that contains moving fluid within a body to be examined. Generating Doppler spectrum image showing velocity of moving fluid based on signals obtained from transmission and reception of ultrasound. Storing modeled value based on model correlating standard blood velocity waveform with an ECG waveform. Calculating measured blood velocity waveform based on spectrum image of a specified patient. Acquiring ECG waveform at timing corresponding to measured blood velocity waveform. Estimating blood velocity waveform excluding effects of valve signals of patient based on measured blood velocity waveform, ECG waveform, and modeled value. Comparing measured blood velocity waveform with estimated blood velocity waveform, to exclude excess parts of the difference over a threshold from measured blood velocity waveform, and to interpolate excluded parts of measured blood velocity waveform.

Ultrasonic doppler imaging apparatus and method with blood velocity waveform processing

There is provided an ultrasonic wave diagnosis instrument. The ultrasonic wave Doppler diagnosis instrument transmits an ultrasonic continuous wave in a range direction and receives a reflective wave of the ultrasonic continuous wave. The ultrasonic wave Doppler diagnosis instrument includes: a modulation unit that subjects the ultrasonic continuous wave to frequency modulation such that a phase is varied in accordance with the distance of the range direction; a demodulation unit that demodulates the reflective wave for each range of the range direction while interlocking with the frequency modulation, and generates a reception signal in the range in a separated state; and a presentation unit that presents information by using a signal of a Doppler component based on the reception signal.

Ultrasonic doppler diagnosis device

A Doppler signal detecting unitand spectrum calculating unitmeasure a Doppler spectrum from a reception signal obtained by ultrasonic wave transmission/reception with respect to a diagnosis region of an object to be examined. A local maximum/minimum detecting unitdetects a plurality of local maximum/minimum pairs with respect to a trace waveform generated by a trace waveform generating uniton the basis of the Doppler spectrum. A feature amount selecting unitselects a desired waveform from a plurality of local maximum/minimum pairs in a predetermined cardiac cycle set by a cardiac cycle setting unitby using heartbeat information from a living body measuring uniton the basis of a preset selection criterion. A diagnostic parameter is measured on the basis of the position information or amplitude information of the selected waveform.

Ultrasonic doppler diagnostic apparatus and measuring method of diagnostic parameter

An ultrasonic diagnostic apparatus includes plural ultrasonic transducers, a catheter signal detection unit and a position detection unit. The plural ultrasonic transducers are arrayed two-dimensionally for transmitting and receiving ultrasonic waves to and from an object. The catheter signal detection unit is configured to acquire a reception signal of a frequency modulated continuous wave from reception signals from at least three of the plural ultrasonic transducers. The frequency modulated continuous wave is transmitted from a catheter inserted in the object. The position detection unit is configured to detect a position of the catheter based on the acquired reception signal of the frequency modulated continuous wave.

Ultrasonic diagnostic apparatus and catheter tip part detection method

A Doppler sensitivity measuring unit measures the Doppler sensitivity of Doppler spectrum data obtained by ultrasonic wave transmission/reception with respect to a predetermined region of an object to be examined. A spectrum shape model generating unit generates a spectrum shape model on the basis of a window function used when the above Doppler spectrum data is generated. A threshold setting unit sets a threshold range in which trace waveform data displaces by a predetermined amount in the frequency axis direction on the basis of the spectrum shape model and the Doppler sensitivity, and sets a predetermined number of thresholds at almost equal intervals in the threshold range. A trace data generating unit selects a threshold for the acquisition of desired trace waveform data by generating trace waveform data while sequentially updating the plurality of set thresholds.

Ultrasonic doppler measuring apparatus and control method therefor

An ultrasonic imaging apparatus comprising a memory circuit for storing CFM image data, a controller for reading the same CFM image data several times from the memory circuit in synchronism with the sync signal of a TV monitor, and a smoothing circuit for weighting the CFM image data read out by the controller to perform linear interpolation of the CFM image data, thereby smoothing CFM image data along the time axis.

Ultrasonic imaging apparatus

An ultrasonic imaging apparatus comprises an ultrasonic transducer for emitting ultrasonic pulses at a rate frequency fr and converting an echo wave of the ultrasonic pulses into an echo signal, an orthogonal detector circuit for orthogonally detecting an echo signal provided from the ultrasonic transducer and a calculator circuit for obtaining Doppler data from the orthogonal detection signal and providing color Doppler data. The output of the calculator circuit is coupled to an interpolator circuit. When the interpolator circuit receives color Doppler data at a frequency above +fr/2 or -fr/2 from the calculator circuit, it interpolates the Doppler data according to a predetermined argorithm for excluding interpolation data corresponding to a zero region between +fr/2 and -fr/2. The color Doppler data including interpolation data is displayed as color image on the monitor.

Growing community of inventors

Otawara, Japan

Tatsuro Baba