Methods, systems and computer program products for determining a mechanical parameter for a sample having a target region using constructive shear wave displacement is provided. The method includes generating a first shear wave in the target region at a first excitation position and a second shear wave in the target region at a second excitation position; transmitting tracking pulses in the target region at a tracking position that is between the first and second excitation positions; receiving corresponding echo signals for the tracking pulses at the tracking position in the target region; and determining at least one mechanical parameter of the target region based on at least one parameter of a constructive shear wave displacement from the first and second shear waves simultaneously displacing tissue at the tracking position.

An ultrasound system according to some embodiments may include an ultrasound transducer configured to transmit ultrasound pulses toward tissue and generate echo signals responsive to the ultrasound pulses, a channel memory configured to store the echo signals, a beamformer configured to generated beamformed signals responsive to the echo signals, a neural network configured to receive one or more samples of the echo signals or the beamformed signals and produce a first type of ultrasound imaging data, and a processor configured to generate a second type of ultrasound imaging data, wherein the one or more processors may be further configured to generate an ultrasound image based on the first type of ultrasound imaging data and the second type of ultrasound imaging data and to cause a display communicatively coupled therewith to display the ultrasound image.

An ultrasound diagnostic apparatus has: an image acquiring unit that transmits/receives an ultrasound beam from an ultrasound probe to acquire an ultrasound image; a part probability calculating unit that calculates, for the ultrasound image acquired in accordance with a first measurement method, a probability that a part included in the ultrasound image is a specific part from at least one of an orientation angle of the ultrasound probe or an analysis result of the ultrasound image; and a measurement method changing unit that changes, when the probability is greater than or equal to a threshold value, the first measurement method to a second measurement method for identifying the part for which the probability has been calculated, in which an ultrasound image is further acquired by using the second measurement method.

Ping-based imaging systems may be used for tracking motion of hard or soft objects within an imaged medium. Motion detection and motion tracking may be performed by defining fingerprint points and tracking the position of each fingerprint point based on the echoes of multiple transmitted pings.

An exemplary method and system for a local cloud infrastructure are disclosed for a pressure elastography-based measurement system, e.g., to provide pre-screening/early screening for breast cancer detection and/or mass detection. The exemplary system comprises a local appliance and gateway that provides cloud infrastructure capabilities in a portable manner to be deployable in a doctor's office or clinic. The exemplary system can operate independently, as well as in conjunction with a regional or global cloud infrastructure, to provide electronic medical record capabilities, appointment management capabilities, as well as teleradiology interface capabilities, e.g., to improve examination workflow and reduce overall operation cost.

An ultrasound system comprising a probe adapted for emitting and receiving ultrasound waves inside a medium, and a processing unit connected to said probe and adapted for processing signals from the probe. The probe is configured so as to behave as a Fresnel lens for focusing the ultrasound waves. The processing unit analyses signals from the probe for sensing the medium at a plurality of focal points.

Provided is an ultrasonic imaging apparatus capable of obtaining a more accurate shear wave elastic image by removing inefficient areas such as blood vessels using a shear wave observation signal in a section where an object is not affected by a push pulse, and a method for controlling the same. The ultrasonic imaging apparatus according to an embodiment includes: an ultrasonic probe configured to irradiate a push pulse to generate a shear wave to an object, irradiate a first observation signal to the object after the push pulse is irradiated, and irradiate a second observation signal to the object before the push pulse is irradiated or after the first observation signal is irradiated; a controller configured to determine an inefficiency region of the object based on displacement data for each region of the object obtained from the irradiated second observation signal, and generate a shear wave elastic image based on the determined inefficiency region and displacement data for each region of the object obtained from the irradiated first observation signal; and a display configured to display the generated shear wave elastic image.

Motion independent acoustic radiation force impulse imaging is provided. Rather than rely on the displacement over time for each location, the displacements over locations for each time are used. Parallel beamforming is used to simultaneously sample across a region of interest. Since it may be assumed that the different locations are subjected to the same motion at the same time, finding a peak displacement over locations for each given time provides peak or profile information independent of the motion. The velocity or other viscoelastic parameter may be estimated from the displacements over locations.

A method for quantifying viscoelasticity of a medium includes: obtaining a position-time graph of vibration propagation after the medium is subjected to a vibration excitation, determining an angle with maximum signal energy in the position-time graph by using angle projection, where the angle with the maximum signal energy corresponds to a slope of the position-time graph and the slope of the position-time graph is the propagation velocity of the vibration in the medium. Since the propagation velocity of the vibration in the medium is related to the viscoelasticity of the medium, a viscoelasticity parameter of the medium can be quantitatively calculated after the slope of the position-time graph is obtained. The method does not need to select a feature point from the position-time graph to calculate the slope of the position-time graph, and can efficiently and accurately quantifies viscoelasticity of the medium.

A method comprises: generating a shear wave in a target tissue; selecting an ultrasound transducer group in an ultrasound probe, and determining a focus position and a transmitting aperture corresponding to the ultrasound transducer group, such that a sound field boundary range formed by the ultrasound transducer group completely covers a region of interest in the target tissue; controlling the array elements to transmit ultrasound waves according to the corresponding relative time delays, so as to cause a transmitting focusing effect; receiving ultrasound echoes returned from the region of interest, obtaining echo information of different positions in the region of interest, and obtaining, according to the echo information, shear wave information corresponding to the region of interest.