A61B8/4254

Image guided surgical methodology and system employing patient movement detection and correction

A method and system utilizes an imaging device that generates images of target tissue of a patient during a surgical procedure that acts on the target tissue imaged by the imaging device. The method and system enables visual detection of patient movement during the surgical procedure by marking at least one spatial attribute of one or more identifiable features of the target tissue illustrated in an image presented in a display window. Prior to acting on the target tissue, a visual indicator of the spatial attribute(s) is superimposed on one or more subsequent images captured by the imaging device and displayed to the operator. The operator can visually compare a position of the visual indicator to a position of the operator-identified feature in order to detect movement of the patient during the procedure. The system and methodology also facilitates realignment that corrects for detected patient movement.

Workflow, system and method for motion compensation in ultrasound procedures
11484288 · 2022-11-01 · ·

An ultrasound imaging device (10) with an ultrasound probe (12) acquires a live ultrasound image which is displayed with a contour (62) or reference image (60) registered with the live ultrasound image using a composite transform (42). To update the composite transform, the ultrasound imaging device acquires a baseline three-dimensional ultrasound (3D-US) image (66) tagged with a corresponding baseline orientation of the ultrasound probe measured by a probe tracker, and one or more reference 3D-US images (70) each tagged with a corresponding reference orientation. Transforms (54) are computed to spatially register each reference 3D-US image with the baseline 3D-US image. A closest reference 3D-US image is determined whose corresponding orientation is closest to a current orientation of the ultrasound probe as measured by the probe tracker. The composite transform is updated to include the transform to spatially register the closest reference 3D-US image to the baseline 3D-US image.

A METHOD FOR MEASURING THE SPEED OF SOUND IN LIVER WITH A SPECIFIC PROBE AND ASSOCIATED METHODS AND DEVICES

Because of the increase of the obesity related diseases, it is desirable to be able to detect a fatty liver and quantify the content in fat for the fatty liver. Known methods are biopsy and magnetic resonance imaging. However, biopsy is an invasive method and magnetic resonance imaging is a complicated method to carry out. The inventors propose a new ultrasonic method, which is more compliant with a regular control of the content in fat for the fatty liver for a subject. This method notably relies on a smart exploitation of the coherence properties of ultrasound pulses applied to the liver. This method has already been validated on sane subjects as providing accurate measurements, notably for fat content.

A METHOD FOR MEASURING THE SPEED OF SOUND IN LIVER WITH A MOVING PROBE AND ASSOCIATED METHODS AND DEVICES

Because of the increase of the obesity related diseases, it is desirable to be able to detect a fatty liver and quantify the content in fat for the fatty liver. Known methods are biopsy and magnetic resonance imaging. However, biopsy is an invasive method and magnetic resonance imaging is a complicated method to carry out. The inventors propose a new ultrasonic method which is more compliant with a regular control of the content in fat for the fatty liver for a subject. This method notably relies on a smart exploitation of the coherence properties of ultrasound pulses applied to the liver. This method has already been validated on sane subjects as providing accurate measurements, notably for fat content.

Wirelessly programmable transducer-based remote control with inertial sensor

Systems and methods are disclosed for remotely controlling a main processing console of an ultrasound system. In various embodiments, an ultrasound remote controller can be used to remotely control a main processing console of an ultrasound system. The ultrasound remote controller can include a user interface controller configured to provide one or more ultrasound control functions to a user remote from the main processing console. The control functions can be used to remotely control operation of the main console. Further, the user interface controller can be configured to receive input for the one or more ultrasound control functions from the user. The ultrasound remote controller can include a communication interface configured to transmit operational instructions to the main processing console for remotely controlling the operation of the main processing console through the ultrasound remote controller based on the user input for the one or more ultrasound control functions.

ULTRASOUND DIAGNOSTIC APPARATUS, METHOD FOR CONTROLLING ULTRASOUND DIAGNOSTIC APPARATUS, AND PROCESSOR FOR ULTRASOUND DIAGNOSTIC APPARATUS
20230086973 · 2023-03-23 · ·

An ultrasound diagnostic apparatus (1) includes an ultrasound probe (21), a position sensor (13) that is attached to the ultrasound probe (21) and acquires positional information of the ultrasound probe (21), an image acquisition unit (7) that scans a wound portion of a subject with an ultrasound beam using the ultrasound probe (21) to acquire ultrasound images of a plurality of frames, a probability calculation unit (9) that calculates a presence probability of a finding related to the wound portion from each of the ultrasound images of the plurality of frames, and a probability map generation unit (10) that generates a three-dimensional probability map of the finding on the basis of the positional information of the ultrasound probe (21) acquired by the position sensor (13) and the presence probability calculated by the probability calculation unit (9).

MAGNETIC LOCATION SENSOR AND ULTRASOUND ARRAY ON PRINTED-CIRCUIT-BOARD (PCB) OF CATHETER AND CALIBRATION THEREOF
20230091133 · 2023-03-23 ·

A medical probe includes a shaft and a distal-end assembly. The shaft is configured for insertion into an organ of a body. The distal-end assembly is fitted at a distal end of the shaft. The distal-end assembly includes (a) a substrate, (b) a two-dimensional (2D) ultrasound transducer array located on the substrate, and (c) a sensor, which is also located on the substrate, the sensor configured to output signals indicative of a position and an orientation of the 2D ultrasound transducer array inside the organ.

RECORDING ULTRASOUND IMAGES

A system for recording ultrasound images comprises a memory comprising instruction data representing a set of instructions and a processor configured to communicate with the memory and to execute the set of instructions. The set of instructions, when executed by the processor, cause the processor to receive a data stream of two dimensional images taken using an ultrasound transducer and determine from the data stream that a feature of interest is in view of the transducer. The set of instructions further cause the processor to trigger an alert to be sent to a user to indicate that the feature of interest is in view of the transducer, and send an instruction to the transducer to trigger the transducer to capture a three dimensional ultrasound image after a predetermined time interval.

Panoramic Stitching Method, Apparatus, and Storage Medium
20220343460 · 2022-10-27 ·

The present disclosure discloses a panoramic stitching method, an apparatus, and a storage medium. A transformation matrix obtaining method includes: obtaining motion data detected by sensors, wherein the sensors are disposed on a probe used to collect images, and the motion data is used to represent a moving trend of the probe during image collection; inputting the motion data into a pre-trained neural network, to calculate matrix parameters by using the neural network; calculating a transformation matrix by using the matrix parameters, wherein the transformation matrix is used to stitch images collected by the probe, to obtain a panoramic image. In the present disclosure, the transformation matrix can be calculated and the images can be stitched without using characteristics of the images, and factors such as brightness and the characteristics of the images do not impose an impact, thereby improving transformation matrix calculation accuracy, and improving an image stitching effect.

AUTOMATIC FRAME SELECTION FOR 3D MODEL CONSTRUCTION

A method includes obtaining, by a processor, a set of ultrasound frames showing a portion of a heart of a subject, identifying a subset of the frames, responsively to the subset having been acquired at one or more predefined phases of at least one physiological cycle of the subject, computing respective image-quality scores for at least the subset of the frames, each of the scores quantifying an image quality with which one or more anatomical portions of interest are shown in a respective one of the frames, and, based on the image-quality scores, selecting, for subsequent use, at least one frame from the subset of the frames. Other embodiments are also described.