公开(公告)号：US20200214681A1

公开(公告)日：2020-07-09

申请号：US16733050

申请日：2020-01-02

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Seungsoo KIM ,  Francois Guy Gerard Marie VIGNON ,  Jun Seob SHIN ,  Jean-luc Francois-Marie ROBERT ,  David HOPE SIMPSON ,  Andrew HANCOCK

IPC: A61B8/08 ,  A61B8/00 ,  A61B8/12 ,  A61B8/06 ,  G06T7/00

Abstract: Systems, methods, and devices for generating ultrasound images that have reduced or minimized grating lobe artifacts are provided. In one embodiment, an ultrasound imaging system includes an array of acoustic elements, and a processor in communication with the array. The processor is configured to receive electrical signals from the array, determine, based on the directivity of the acoustic elements, a portion of the electrical signals corresponding to on-axis components, generate a weighting mask based on the portion, and apply the weighting mask to an original image to generate a grating lobe minimized image. Because grating lobe artifacts are caused, in part, by reflections from off-axis objects, applying the weighting mask to an original image can reduce the presence of grating lobe artifacts in the original image.

公开(公告)号：US20200268345A1

公开(公告)日：2020-08-27

申请号：US16798502

申请日：2020-02-24

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Francois Guy Gerard Marie VIGNON ,  Seungsoo KIM ,  Jun Seob SHIN ,  Jean-luc Francois-Marie ROBERT ,  Andrew HANCOCK ,  David HOPE SIMPSON

IPC: A61B8/00 ,  A61B8/14 ,  A61B8/12

Abstract: Ultrasound systems and devices that perform scan sequences providing controllable and/or increased frame rates are provided. In one embodiment, an ultrasound system comprises an array of acoustic elements and a processor configured to perform a scan sequence comprising a plurality of transmit-receive pairs. The processor is configured to arrange the plurality of transmit-receive pairs into an aperture. The transmit-receive pairs corresponding to each transmit element correspond to only a portion of the plurality of receive elements and/or the transmit-receive pairs corresponding to each receive element correspond to only a portion of the plurality of transmit elements. Accordingly, fewer transmit-receive pairs are activated leading to faster aperture acquisitions, and therefore faster frame rates. Furthermore, the faster frame rates can be achieved without significant degradations in image quality.

公开(公告)号：US20200077985A1

公开(公告)日：2020-03-12

申请号：US16566398

申请日：2019-09-10

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： David HOPE SIMPSON ,  Andrew HANCOCK ,  Jun Seob SHIN ,  Seungsoo KIM ,  Jean-luc Francois-Marie ROBERT ,  Francois Guy Gerard Marie VIGNON

IPC: A61B8/08 ,  A61B8/12 ,  A61B8/06 ,  A61B8/00

Abstract: Improved ultrasound imaging devices and methods of using the devices are provided. An intraluminal imaging device is configured process imaging data obtained using a single imaging sequence in different processing paths to generate B-mode and flow images. For example, an ultrasound imaging system includes an ultrasound imaging device comprising an array of acoustic elements and a processor in communication with the array. The processor activates the array of acoustic elements to acquire ultrasound data using a sequence of transmit-receive pairs, generates a B-mode image using the acquired ultrasound data, forms a plurality of sub-apertures comprising a portion of the transmit-receive pairs, groups the sub-apertures into temporally-spaced ensembles, determines a flow estimate based on a comparison of at least one of sub-apertures within an ensemble, ensembles within an aperture, or different apertures, and outputs a graphical representation of the B-mode image and the flow estimate to a display.