This invention provides a signal-processing method that makes it possible to acquire, relatively easily and surely, a highly reliable normalized impulse-response signal without relying on the signal-correction processing after normalization. The signal-processing method of this invention includes a low-frequency extraction step, a high-frequency extraction step and a synthesizing step. In the low-frequency extraction step, only the low-frequency component is extracted from the spectrum of the first normalized signal NS1 obtained by normalizing the target signal S.sub.tgt in the time domain. In the high-frequency extraction step, only the high-frequency component is extracted from the spectrum of the second normalized signal NS2 obtained by normalizing the target signal S.sub.tgt in the frequency domain using the reference signal S.sub.ref. In the synthesizing step, the low-frequency component, derived from the first normalized signal NS1, and the high-frequency component, derived from the second normalized signal NS2, are synthesized to obtain a normalized impulse-response signal NS.

An ultrasound diagnostic apparatus includes an ultrasound probe, an image generation unit that generates an ultrasound image on which a breast of a subject is captured by performing transmission and reception of an ultrasound beam by using the ultrasound probe for the subject, a schema image generation unit that generates a schema image on which a region of interest is plotted based on a synthesized two-dimensional image generated by using a series of radiation images obtained by tomosynthesis imaging and on which the breast of the subject is captured, information on a tomosynthesis image accompanying the synthesized two-dimensional image and corresponding to the region of interest on the synthesized two-dimensional image, and information on the region of interest, and a monitor that displays the ultrasound image, the synthesized two-dimensional image, and the schema image.

An ultrasound imaging system according to the present disclosure may include an ultrasound probe, a display unit, and a processor configured to receive source image data having a first dynamic range, wherein the source image data comprises log compressed echo intensity values based on the ultrasound echoes detected by the ultrasound probe, generate a histogram of at least a portion of source image data, generate a cumulative density function for the histogram, receive an indication of at least two points on the cumulative density function (CDF), and cause the display unit to display an ultrasound image representative of the source image data displayed in accordance with the second dynamic range.

Controlling an image appearance in ultrasound system comprises: providing a set of image appearance feature control parameters, each of which relates to an image appearance feature according to a pre-defined relation between a value scale of the said image appearance feature control parameter and an image appearance related to a certain condition of the corresponding image appearance feature; generating a function between the value of each image feature control parameter and the value of the standard workflow setting parameters of a combination of standard workflow setting parameters influencing the said image appearance feature; and varying automatically the value of the one or more of the standard workflow setting parameters of the combination of standard workflow setting parameters influencing an image appearance feature as a function of a variation of the value of the corresponding image appearance feature control parameters for obtaining the requested image appearance feature variation.

An ultrasound diagnostic system (1) includes an ultrasound probe (2), a handheld type diagnostic apparatus main body (3), and a remote apparatus (4), the ultrasound probe (2) includes a position sensor (14) that detects a measurement position of the ultrasound probe (2), the diagnostic apparatus main body (3) includes an image generation unit (22) that generates an ultrasound image and a monitor (24), the remote apparatus (4) includes an organ detection unit (32) that detects an organ of a subject by analyzing the ultrasound image, a score of the measurement position with respect to an optimum position in a case of measuring the organ detected by the organ detection unit (32) by the ultrasound probe (2) is input to the remote apparatus (4) and is transmitted from the remote apparatus (4) to the diagnostic apparatus main body (3) to be displayed on the monitor (24).

A medical diagnostic apparatus acquires a signal to generate images of an observation target, sequentially generates observation images based on the acquired signal, and causes a display to continuously display the observation images. The apparatus includes: a first storage for storing the observation images in chronological order; input units for receiving a command signal for freezing the observation images on the display; and a second storage for storing correction information for each input unit so as to associate the correction information with each input unit. The apparatus is configured to: identify an input unit that has received the command signal among the input units; determine a correction amount based on a result of identification by the identification unit and the correction information; and select an observation image generated before or after receiving the command signal according to the correction amount, from among the observation images, based on the correction amount.

An ultrasound imaging system may include a probe, a transmitting circuit which may excite the probe to transmit ultrasound beams towards a scanning target in at least three ultrasound propagation directions; a receiving circuit and a beamforming unit which may respectively receive the echoes of the ultrasound beams in the ultrasound propagation directions to obtain the echo signals in each of the ultrasound propagation directions; a data processing unit which may obtain velocity vectors of target points in the scanning target using the echo signals in each of the ultrasound propagation directions and obtain ultrasound images of at least a portion of the scanning target using the echo signals; and a display which may display the velocity vectors and the ultrasound images.

Disclosed is a method of changing at least one of a direction and position of a plane selection line for acquiring an image of a plane of interest of an object. The method includes acquiring a medical image of an object, displaying a first plane image acquired along a first plane selection line of the medical image, setting a pattern which is used to change at least one of the direction and position of the plane selection line, changing at least one of the direction and position of the plane selection line, based on the set pattern, and displaying a second plane image acquired along the changed plane selection line.

A method of operating a medical-imaging system is described; the medical-imaging system has an ultrasound-transducer interface configured to operatively interface with an ultrasound transducer including transducer elements; the medical-imaging system also has a spatial sensor configured to provide spatial information indicating spatial movement of the ultrasound transducer; the method includes receiving ultrasound information being associated with a scan-line set having a limited number of selectable scan lines of the ultrasound transducer. Also disclosed is a non-transitory computer-readable medium.

An ultrasound imaging system according to the present disclosure may include an ultrasound probe, a display unit, and a processor configured to receive source image data having a first dynamic range, wherein the source image data comprises log compressed echo intensity values based on the ultrasound echoes detected by the ultrasound probe, generate a histogram of at least a portion of source image data, generate a cumulative density function for the histogram, receive an indication of at least two points on the cumulative density function (CDF), and cause the display unit to display an ultrasound image representative of the source image data displayed in accordance with the second dynamic range.