公开(公告)号：US20180168552A1

公开(公告)日：2018-06-21

申请号：US15562202

申请日：2016-03-31

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： William SHI ,  Ajay ANAND ,  Sheng-Wen HUANG ,  Shriram SETHURAMAN ,  Hua XIE

IPC: A61B8/08 ,  A61B18/14 ,  A61N7/02 ,  A61B8/00

CPC classification number: A61B8/485 ,  A61B8/085 ,  A61B8/5223 ,  A61B8/587 ,  A61B18/12 ,  A61B18/1477 ,  A61B2017/00106 ,  A61B2018/00577 ,  A61B2018/0212 ,  A61B2018/1869 ,  A61N7/02 ,  A61N2007/0052

Abstract: A medium of interest is interrogated according to ultrasound elastography imaging. A preliminary elasticity-spatial-map is formed. This map is calibrated against a reference elasticity-spatial-map that comprises an array (232) of different (240) elasticity values. The reference map is formed to be reflective of ultrasonic shear wave imaging of a reference medium. The reference medium is not, nor located at, the medium of interest, and may be homogeneous. Shear waves that are propagating in a medium are tracked by interrogating the medium. From tracking locations on opposite sides of an ablated-tissue border, propagation delay of a shear wave in the medium and of another shear wave are measured. The two shear waves result from respectively different pushes (128) that are separately issued. A processor decides, based on a function of the two delays, that the border crosses between the two locations. The calibrated map is dynamically updated and may include post-ablation border expansion (346) and time-annotated previous stages (344, 348).

公开(公告)号：US20210321978A1

公开(公告)日：2021-10-21

申请号：US17272989

申请日：2019-08-30

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Man NGUYEN ,  Raghavendra SRINIVASA NAIDU ,  Christine SWISHER ,  Hua XIE

IPC: A61B8/08 ,  A61B8/14 ,  A61B8/00 ,  G06N3/04

Abstract: The present disclosure describes imaging systems configured to identify features within image frames and improve the frames by implementing image quality adjustments. An ultrasound imaging system can include a transducer configured to acquire echo signals responsive to ultrasound pulses transmitted toward a target. The system can also include a user interface configured to display an image and one or more processors configured to identify one or more features within the image. The processors can cause the interface to display elements associated with at least two image quality operations specific to the identified feature. A first image quality operation can include a manual adjustment of a transducer setting, and a second image quality operation can include an automatic adjustment of the identified feature derived from reference frames including the identified feature. The processors can receive a user selection of one or more elements and apply the operations to modify the image.

公开(公告)号：US20210196238A1

公开(公告)日：2021-07-01

申请号：US17055300

申请日：2019-05-09

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Jean-Luc Francois-Marie ROBERT ,  Sheng-Wen HUANG ,  Francois Guy Gerard Marie VIGNON ,  Jun Seob SHIN ,  Seungsoo KIM ,  Hua XIE ,  Man NGUYEN ,  Faik Can MERAL ,  William Tao SHI ,  Carolina AMADOR CARRASCAL

IPC: A61B8/08 ,  A61B8/00 ,  G01S15/89 ,  G01S7/52

Abstract: In an ultrasound imaging system which produces synthetically transmit focused images, the multiline signals used to form image scanlines are analyzed for speed of sound variation, and a map 60 of this variation is generated. In a preferred implementation, the phase discrepancy of the received multilines caused by speed of sound variation in the medium is estimated in the angular spectrum domain for the receive angular spectrum. Once the phase is estimated for all locations in an image, the differential phase between two points at the same lateral location, but different depth, is computed. This differential phase is proportional to the local speed of sound between the two points. A color-coded two- or three-dimensional map 60 is produced from these speed of sound estimates and presented to the user.

公开(公告)号：US20210106305A1

公开(公告)日：2021-04-15

申请号：US16498472

申请日：2018-03-26

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Shiying WANG ,  Sheng-Wen HUANG ,  Hua XIE ,  Francois Guy Gerard Marie VIGNON ,  Liang ZHANG ,  Keith William JOHNSON

IPC: A61B8/06 ,  A61B8/08 ,  A61B8/00 ,  G16H30/40 ,  G16H50/30

Abstract: A system for visualization and quantification of ultrasound imaging data 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 generate vector field data corresponding to the fluid flow, wherein the vector field data comprises axial and lateral velocity components of the fluid, extract spatiotemporal information from the vector field data at one or more user-selected points within the image, and cause the display unit to concurrently display the spatiotemporal information at the one or more user-selected points with the image including a graphical representation of the vector field data overlaid on the image, wherein the spatiotemporal information includes at least one of a magnitude and an angle of the fluid flow.