Abstract: An ultrasonic diagnosis and treatment system includes an ultrasonic probe for transmitting and for receiving ultrasonic waves; an image generator unit for generating an ultrasonic image based on the echo signals received by the ultrasonic probe; a display unit for displaying an ultrasonic image generated by the image generator unit; and a biopsy needle for radiating radiofrequency waves. The ultrasonic diagnosis and treatment system includes a display controller unit for displaying on the display unit an ultrasonic image at the time of non-radiation of the radiofrequency waves generated based on the echo signals received by the ultrasonic probe at the time when the radiofrequency waves are not radiated from the biopsy needle, in place of the ultrasonic image at the time of radiation of the radiofrequency waves generated based on the echo signals received by the biopsy needle at the time of radiating the radiofrequency wave from the biopsy needle.

Abstract: An ultrasonic diagnosis and treatment system includes an ultrasonic probe for transmitting and for receiving ultrasonic waves; an image generator unit for generating an ultrasonic image based on the echo signals received by the ultrasonic probe; a display unit for displaying an ultrasonic image generated by the image generator unit; and a biopsy needle for radiating radiofrequency waves. The ultrasonic diagnosis and treatment system includes a display controller unit for displaying on the display unit an ultrasonic image at the time of non-radiation of the radiofrequency waves generated based on the echo signals received by the ultrasonic probe at the time when the radiofrequency waves are not radiated from the biopsy needle, in place of the ultrasonic image at the time of radiation of the radiofrequency waves generated based on the echo signals received by the biopsy needle at the time of radiating the radiofrequency wave from the biopsy needle.

Abstract: An ultrasonic diagnosis and treatment system includes an ultrasonic probe for transmitting and receiving the ultrasonic waves, an image generator unit for generating an ultrasonic image based on the echo signals received by the ultrasonic probe, and a biopsy needle for radiating the radiofrequency waves. The ultrasonic diagnosis and treatment system includes a controller unit for alternately performing the transmission and reception of the ultrasonic wave by means of the ultrasonic probe and the radiofrequency wave radiation by the biopsy needle.

Abstract: An ultrasonic diagnostic apparatus includes a contrast timer starting time measurement by a start signal and an external input device for externally inputting said start signal.

Abstract: In order to properly discern a plurality of streams of blood flow having different contrast agent arrival times or blood concentration properties, an ultrasonic diagnostic apparatus 200 comprises: an ultrasonic probe 1; a transceiver section 2; a quadrature detector section 3; a power calculating section 4 for calculating the power P of blood flow; a power peak holding section 21 for comparing the latest power P and a predecessor peak value Po, and outputting the larger one as a peak value P′ and an elapsed time t′ corresponding to the peak value P′; a predecessor power/elapsed time keeping section 22 for keeping the predecessor peak value Po and the corresponding elapsed time ‘to’ and outputting these values to the power peak holding section 21; a timer 11 for measuring an elapsed time t from a reference time; a blood flow image producing section 25 for producing a power peak hold blood flow image G2 in which the hue is changed before and after the elapsed time t′ reaches

Abstract: In order to properly discern a plurality of streams of blood flow having different contrast agent arrival times or blood concentration properties, an ultrasonic diagnostic apparatus 200 comprises: an ultrasonic probe 1; a transceiver section 2; a quadrature detector section 3; a power calculating section 4 for calculating the power P of blood flow; a power peak holding section 21 for comparing the latest power P and a predecessor peak value Po, and outputting the larger one as a peak value P′ and an elapsed time t′ corresponding to the peak value P′; a predecessor power/elapsed time keeping section 22 for keeping the predecessor peak value Po and the corresponding elapsed time ‘to’ and outputting these values to the power peak holding section 21; a timer 11 for measuring an elapsed time t from a reference time; a blood flow image producing section 25 for producing a power peak hold blood flow image G2 in which the hue is changed before and after the elapsed time t′ reaches

Abstract: In an apparatus for ultrasonic diagnosis, an autocorrelation calculator 11 produces Doppler power data P, a shading portion extractor 21 extracts the left-side section of the profile of the ultrasonic image from the Doppler power data P, and a data value converter 22 converts the data value of the extracted shading portion into the data value for shading and converts the data values of remaining portions into a data value different from the data value for shading. The shaded ultrasonic image is visualized as a three-dimensional image so as to facilitate the diagnosis. Particularly, in ultrasonic images of Doppler power mode, blood vessels are visualized as three-dimensional images, and the viewer can identify even small blood vessels accurately.

Abstract: In a power Doppler ultrasonic blood flow display apparatus, according to a moving signal Z representing moving of a blood flow display region, display changing means comprising changers (77, 78) and a change controller (79) displays a B-mode image also to a blood flow display region (84) while the blood flow display region (84) is moved, and displays a blood flow image when the moving of the blood flow display region (84) is stopped. Consequently the B-mode image of the target can be easily caught even while the blood flow display region is moved.

Abstract: A plurality of ultrasonic pulses are transmitted to the inside of a living body by an ultrasonic probe and an ultrasonic echo signal is received from within the living body. An auto-correlating unit effects auto-correlation processing on the ultrasonic echo signal to produce a real-part component and an imaginary-part component. A real-part component corrector adds an offset value to the real-part component so as to generate a new real-part component. A velocity detector detects a moving velocity of a tissue or blood from the new real-part component and the imaginary-part component.

Abstract: An object of the present invention is to obtain an ultrasonic diagnostic apparatus including a CFM system which is designed so that the algorithm for computing a flow velocity or the like can be changed easily.The ultrasonic diagnostic apparatus according to the present invention comprises an A/D converter that converts a Doppler signal obtained by coherent detection of the echo reflected from an object of inspection into a digital signal, and a flow velocity computing section that determines a blood flow velocity and velocity dispersion on the basis of the Doppler signal from the A/D converter. The flow velocity computing section includes an MTI filter and a computing unit that determines a blood flow velocity and velocity dispersion by processing an output signal from the filter, both the MTI filter and the computing unit comprising respective digital signal processors (DSPs).

Abstract: A diagnostic imaging apparatus is disclosed in which an ultrasonic wave transmit/receive apparatus is used in common for both 2-dimensional B-mode imaging and for measurement of pulsed Doppler signals, by time sharing operation. The good real time characteristics of 2-dimensional B-mode imaging are retained, together with a sufficiently high data rate for pulsed Doppler measurement, through use of simple means for performing interpolation in the Doppler signals Ultrasonic wave transmit/receive means (21,23 to 25,27) repetitively execute combinations of ultrasonic wave transmit/receive sequences, each combination consisting of a plurality of pulsed Doppler mode ultrasonic wave transmit/receive sequences and a single 2-dimensional B-mode imaging ultrasonic wave transmit/receive sequence. Demodulator means (38 to 41) demodulate the Doppler signals, based on the received signals that are acquired during the pulsed Doppler mode ultrasonic wave transmit/receive sequences.

Abstract: A Doppler signal analyzing apparatus is capable of frequency analysis of a Doppler signal with frequency and time resolutions that match the frequency band of a signal to be analyzed. The signal to be analyzed is divided into a plurality of frequency bands by bandpass means (10.sub.1, 10.sub.2, 10.sub.3), and signals in the frequency bands which have passed through the bandpass means are acquired by signal acquiring means (11) over time slots that are smaller for higher-frequency signals and larger for lower-frequency signals. The signals acquired by the signal acquiring means are subjected to a Fourier transform by Fourier transform means (14).