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公开(公告)号：US20210338209A1
公开(公告)日：2021-11-04
申请号：US17273488
申请日：2019-09-05
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Jean-Luc Francois-Marie ROBERT , Francois Guy Gerard Marie VIGNON , Shiying WANG , Jun Seob SHIN , Man NGUYEN , Faik Can MERAL
Abstract: An ultrasound system produces high quality images at a high framerate of display. A plane or volume to be imaged is scanned by different diverging transmit beams to acquire a series of different sub-frames, the number of sub-frame acquisitions comprising a total number of transmit beams which would produce a high quality image. The echoes received in response to the transmit beams of a sub-frame are coherently combined with the echoes received in other sub-frames. Each time the echoes of a new sub-frame have been coherently combined with the echoes of all other different sub-frames, a full image is produced. After a complete series of sub-frames has been received and the echoes combined, another series of sub-frame acquisition is commenced and a new series of sub-frames acquired. As each new sub-frame is acquired, it is coherently combined with all the other different and most recently acquired sub-frames. This technique produces a new image at the sub-frame scanning rate, rather than awaiting a completely new series of sub-frames before forming a new image.
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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
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.
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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
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.
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公开(公告)号：US20190380679A1
公开(公告)日：2019-12-19
申请号：US16479303
申请日：2018-01-11
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Shyam BHARAT , Man NGUYEN , Ameet Kumar JAIN , Jean-Luc Francois-Marie ROBERT , Vijay PARTHASARATHY , Atul GUPTA , Kunal VAIDYA , Ramon Quido ERKAMP
Abstract: An ultrasound imaging system according to the present disclosure may include an ultrasound transducer assembly comprising a plurality of apertures that are configured to transmit signals toward and receive signals from a region of interest (ROI) of a subject, a tracking sensor disposed within the subject and configured to move within the ROI, the sensor being responsive to signals transmitted by the apertures, and at least one processor in communication with the ultrasound transducer assembly and the tracking sensor. The at least one processor may be configured to generate a first image of a first portion of the ROI from signals received from at least one activated aperture, identify a position of the tracking sensor using signal data from the tracking sensor that corresponds to at least one signal transmitted by the apertures, and generate a second image of a second portion of the ROI from signals received from at least one other aperture activated based on the identified position, wherein the second portion of the ROI is different from the first portion of the ROI.
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