A61B8/5246

Shear wave amplitude reconstruction for tissue elasticity monitoring and display

The present disclosure describes ultrasound systems and methods configured to determine the elasticity of a target tissue. Systems can include an ultrasound transducer configured to acquire echoes responsive to ultrasound pulses transmitted toward the tissue, which may include a region of increased stiffness. Systems can also include a beamformer configured to control the transducer to transmit a push pulse into the tissue, thereby generating a shear wave in the region of increased stiffness. The beamformer can be configured to control the transducer to emit tracking pulses adjacent to the push pulse. Systems can further include a processor configured to determine a displacement amplitude of the shear wave and based on the amplitude, generate a qualitative tissue elasticity map of the tissue. The processor can combine the qualitative map with a quantitative map of the same tissue, and based on the combination, determine a boundary of the region of increased stiffness.

Method and system for increasing effective line density of volume compound ultrasound images
11540812 · 2023-01-03 · ·

Systems and methods for increasing effective line density of volume compound ultrasound images while maintaining the frame rate, penetration depth, and other image characteristics are provided. The method includes acquiring a first lateral plane at a first elevational position. The first lateral plane includes a first set of receive lines at a first set of lateral positions. The method includes acquiring a second lateral plane at a second elevational position adjacent the first elevational position. The second lateral plane includes a second set of receive lines at a second set of lateral positions laterally offset from the first set of lateral positions. The method includes combining the first lateral plane and the second lateral plane to generate a compound image and presenting the compound image at a display system. The compound image may be a volume compound image in an A-plane generated based on volume compound imaging rendering algorithms.

SYSTEMS AND METHODS FOR GUIDING AN ULTRASOUND PROBE
20220409292 · 2022-12-29 ·

An ultrasound device (10) includes a probe (12) including a tube (14) sized for insertion into a patient and an ultrasound transducer (18) disposed at a distal end (16) of the tube. A camera (20) is mounted at the distal end of the tube in a fixed spatial relationship to the ultrasound transducer. At least one electronic processor (28) is programmed to: control the ultrasound transducer and the camera to acquire ultrasound images (19) and camera images (21) respectively while the ultrasound transducer is disposed in vivo inside the patient; and construct a keyframe (36) representative of an in vivo position of the ultrasound transducer including at least ultrasound image features (38) extracted from at least one of the ultrasound images acquired at the in vivo position of the ultrasound transducer and camera image features (40) extracted from one of the camera images acquired at the in vivo position of the ultrasound transducer.

RECONSTRUCTING A 4D SHELL OF A VOLUME OF AN ORGAN USING A 4D ULTRASOUND CATHETER
20220409172 · 2022-12-29 ·

A medical system includes an ultrasound probe and a processor. The ultrasound probe is configured for insertion into an organ of a body and includes (i) a two-dimensional (2D) ultrasound transducer array, and (ii) a sensor configured to output signals indicative of a position and orientation of the 2D ultrasound transducer array inside the organ. The processor is configured to (a) using the signals output by the sensor, register multiple ultrasound image sections, acquired by the 2D ultrasound transducer array, with one another, (b) produce a union of the multiple registered ultrasound image sections, to form a rendering of at least a portion of the organ, and (c) present the rendering to a user.

Ultrasonic diagnosis apparatus, image processing apparatus, and image processing method for tissue displacement caused by a shearwave generated by acoustic radiation force

An ultrasonic diagnosis apparatus according to an embodiment includes a transmission unit, a reception unit, a generator, and a display controller. The transmission unit causes an ultrasonic probe to transmit a displacement-producing ultrasonic wave and causes the probe to transmit a displacement-observing ultrasonic wave. The reception unit generates reflected-wave data based on a reflected wave received by the probe. The generator calculates displacement at each of a plurality of positions in the scan area over a plurality of time phases, based on the reflected-wave data, determines a time phase when the calculated displacement is substantially maximum, for each of the positions, and generates image data representing positions where the determined time phases are substantially the same as each other, among the positions. The display controller superimposes an image based on the image data on a medical image corresponding to an area including the scan area.

Systems and methods for automatic detection and visualization of turbulent blood flow using vector flow data

A system for visualization and quantification of ultrasound imaging data according to embodiments of the present disclosure may include a display unit, and a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to estimate axial and lateral velocity components of the fluid flowing within the bodily structure, determine a plurality of flow directions within the image based on the axial and lateral velocity components, differentially encode the flow directions based on flow direction angle to generate a flow direction map, and cause the display unit to concurrently display the image including the bodily structure overlaid with the flow direction map.

ULTRASOUND DIAGNOSIS APPARATUS, MEDICAL IMAGE PROCESSING APPARATUS, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING THEREIN MEDICAL IMAGE PROCESSING PROGRAM
20220405885 · 2022-12-22 · ·

An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry and a display. The processing circuitry generates, from ultrasound data, pieces of low and high frequency data corresponding to resolutions of gradual degrees, extracts pieces of negative high frequency data over a range of predetermined resolutions, from the pieces of high frequency data, restores the resolution of first addition data so as to be equal to the resolution of the ultrasound data before reduction, the first addition data being obtained by adding up the pieces of negative high frequency data while causing resolutions to match over the range of the predetermined resolutions, and generates a combined image on the basis of the restored first addition data and the ultrasound data. The display displays the combined image.

REAL-TIME ANATOMICALLY BASED DEFORMATION MAPPING AND CORRECTION

A method includes generating a real-time ultrasound image of anatomy of interest. At least a sub-portion of the anatomy of interest is deformed from an initial location to a different location by pressure applied by an external force. The method further includes obtaining a 2-D slice, which corresponds to a same plane as the real-time ultrasound image, from 3-D reference image data, wherein a corresponding sub-portion is at the initial location. The method further includes determining displacement fields for the sub-portion from the sub-portion, the corresponding sub-portion and other anatomy not-deformed in the real-time ultrasound image and the 3-D reference image data. The method further includes deforming the 3-D reference image data using the displacement fields, which creates deformed 3-D reference image data based on the different location.

MEDICAL IMAGE PROCESSING DEVICE, ULTRASONIC DIAGNOSTIC DEVICE, AND STORAGE MEDIUM

A medical image processing device of an embodiment has processing circuitry. The processing circuitry performs position transformation to represent a position in a region of interest set in a captured mammography image of a breast of a subject and an examination position on a body of the subject in an ultrasound examination in a plane of the same scale, determines whether or not the position in the region of interest and the examination position match in the plane, and saves or outputs an ultrasonic image corresponding to the examination position upon determining that the position in the region of interest matches the examination position.

Ultrasound system and method for detection of kidney stones using twinkling artifact
11529118 · 2022-12-20 · ·

A method color Doppler imaging in accordance with some examples of the present disclosure includes transmitting with a probe of an ultrasound imaging system, ultrasound pulses towards a region of interest in a subject, receiving with the probe echoes responsive to the pulses, generating B-mode image data and Doppler signals based on the ultrasound echoes, filtering the Doppler signals, wherein the filtering includes rejecting lower intensity signals which have amplitudes below a threshold amplitude and passing higher intensity signals which have amplitudes above the threshold amplitude, generating color data based on the higher intensity signals, overlaying the color data with the B-mode image data to produce a color Doppler image, and displaying the color Doppler image in a kidney stone detection interface.