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公开(公告)号：US10251627B2
公开(公告)日：2019-04-09
申请号：US14900199
申请日：2014-06-25
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Vijay Parthasarathy , Hua Xie , Jean-luc Robert , Shiwei Zhou , Vijay Thakur Shamdasani
Abstract: The present invention relates to an ultrasound elastography system (10) for providing an elastography measurement result of an anatomical site (32) a corresponding method. The system (10) is configured to visualize a suitability for shear wave elastography of the region of interest (33) to the user within the ultrasound image (52) and/or to recommend an elastography acquisition plane (48, 50) for conducting shear wave elastography to the user. By this, proper selection of a location for an elastography measurement may be supported.
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公开(公告)号：US20180344293A1
公开(公告)日：2018-12-06
申请号：US15760244
申请日：2016-09-13
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Balasundar Iyyavu Raju , Jingping Xu , Shougang Wang , Shiwei Zhou , Anthony M. Gades
CPC classification number: A61B8/085 , A61B8/4254 , A61B8/5276 , A61B8/54
Abstract: Extracorporeal motion (130) relative to a medical subject being imaged is detected, through the imaging or from motion detectors on the imaging probe, and either backed out of the medical images so that it can be determined whether lung sliding exists or measured to determine whether lung sliding detection is to be suspended due to excessive extracorporeal motion. Image sub-regions (164, 168) corresponding to respective ones of the images are selected for image-to-image comparison such that the selected sub-regions contain only body tissue that is, with respect to imaging depth in the acquiring of the images, shallower than an anatomical landmark within the images. Based on a result of the comparing, lung sliding detection that entails examining image data deeper than the landmark may be initialized. A motion sensor may detect the extracorporeal motion and, based on its output: pair-wise co-register (170) images to an extent of backing out the effect of the extracorporeal motion and/or determine whether to suspend deciding as to whether lung sliding is, during the respiration, occurring in the subject.
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公开(公告)号：US11497463B2
公开(公告)日：2022-11-15
申请号：US16838183
申请日：2020-04-02
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Jingping Xu , Balasundar Iyyavu Raju , Shougang Wang , Shiwei Zhou
Abstract: The embodiments disclose an ultrasound system comprising: a probe configured to obtain ultrasound data relating to a scanning region including at least part of a pleural interface of a lung; and a data analyzer, configured to automatically detect information for determining lung sliding and/or lung point using one or more cross correlation maps derived from the data. The embodiments also disclose a method thereof.
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公开(公告)号：US11382596B2
公开(公告)日：2022-07-12
申请号：US14906611
申请日：2014-07-14
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sushanth Govinahallisathyanarayana , Rajendra Singh Sisodia , Nagaraju Bussa , Krishnamoorthy Palanisamy , Vikram Basawaraj Patil Okaly , Shriram Sethuraman , John Petruzzello , Shiwei Zhou , Ajay Anand , Ramon Quido Erkamp , Shankar Mosur Venkatesan
Abstract: A method for aligning spatially different subvolumes of ultrasonic data of a blood vessel comprising: acquiring temporally discrete signals of a blood vessel with elements of a two dimensional array of ultrasonic transducer elements from spatially different depths of scanning opposed by each transducer element, said array being located in a first position with respect to the blood vessel during the acquiring; Doppler processing the temporally discrete signals received from each transducer element to produce spectral Doppler data of the scanning depth opposed by each transducer element; producing a first three dimensional map of the spectral Doppler data in spatial relationship to the position of the array with respect to the blood vessel; acquiring temporally discrete signals of the blood vessel with elements of the two dimensional array of ultrasonic transducer elements from spatially different depths of scanning opposed by each transducer element, said array being located in a second position with respect to the blood vessel during the acquiring; Doppler processing the temporally discrete signals received from each transducer element to produce spectral Doppler data of the scanning depth opposed by each transducer element; producing a second three dimensional map of the spectral Doppler data in spatial relationship to the position of the array with respect to the blood vessel; aligning the first three dimensional map with the second three dimensional map on the basis of one or more regions of matching spectral Doppler data of the two map; and producing a combined three dimension map of the blood flow of the vessel from the aligned first and second three dimensional maps.
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公开(公告)号：US11191522B2
公开(公告)日：2021-12-07
申请号：US15320570
申请日：2015-06-15
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Hua Xie , Shiwei Zhou , Jean-luc Robert , Vijay Thakur Shamdasani , Sheng-Wen Huang
Abstract: An ultrasound exposure safety processor is configured for spatially relating respective definitions of an imaging zone, and an extended dead-tissue zone that includes both a dead-tissue zone and a surrounding margin. Based on whether a push pulse focus is to be within the extended dead-tissue zone, the processor automatically decides a level of acoustic power with which the pulse is to be produced. If the pulse focus is to be within the extended dead-tissue zone, the pulse may be produced with a mechanical index (MI), a thermal index (TI), and/or a spatial-peak-temporal-average intensity (IspTA) that exceeds respectively 1.9, 6.0 and 720 milliwatts per square centimeter. The imaging zone may be definable interactively to dynamically trigger the deciding and the producing, with push pulse settings being dynamically derived automatically. A display of multiple push pulse sites allows user manipulation of spatial definition indicia to dynamically control displacement tracking.
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Patent Agency Ranking
公开(公告)号：US11191518B2
公开(公告)日：2021-12-07
申请号：US16086729
申请日：2017-03-24
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Shougang Wang , Balasudar Iyyavu Raju , Jingping Xu , Anthony M. Gades , McKee Dunn Poland , Shiwei Zhou
Abstract: The present invention proposes an ultrasound system and a method of detecting lung sliding on the basis of a temporal sequence of ultrasound data frames of a first region of interest. The first region of interest includes a pleural interface of a lung. A sub-region identifier (410) is configured to identify, for each of the ultrasound data frames, a sub-region of a scanned region of the ultrasound data frame, the sub-region comprising at least part of the pleural interface; a lung sliding detector (420) is configured to derive a parametric map for the sub-region on the basis of at least two ultrasound data frames of the temporal sequence, parametric values of the parametric map indicating a degree of tissue motion over the at least two ultrasound frames; wherein the lung sliding detector is further configured to extract data of the sub-regions from the at least two ultrasound data frames, and to derive the parametric map on the basis of the extracted data.
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公开(公告)号：US10945702B2
公开(公告)日：2021-03-16
申请号：US14906966
申请日：2014-07-02
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Krishnamoorthy Palanisamy , Sushanth Govinahallisathyanarayana , Rajendra Singh Sisodia , Nagaraju Bussa , Shankar Mosur Venkatesan , Shriram Sethuraman , John Petruzzello , Ajay Anand , Shiwei Zhou , Ramon Quido Erkamp , Vikram Basawaraj Patil Okaly
Abstract: A diagnostic ultrasound system for carotid artery diagnosis has a two dimensional array probe with a low element count and relatively large element size which can cover an area of the carotid artery at its bifurcation. The elements are operated independently with no phasing, and detect Doppler flow spatially beneath each element. The system produces maps of carotid blood flow in two or three dimensions and can assemble an extended view of the flow by matching segments of the carotid flow as the probe is moved over the vessel. Once the carotid artery has been localized, the degree of stenosis is assessed by automated measurements of peak systolic velocity and blood flow turbulence.
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公开(公告)号：US10729404B2
公开(公告)日：2020-08-04
申请号：US15515392
申请日：2016-07-29
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Vijay Thakur Shamdasani , Yin Hui Deng , Ying Wu , Hua Xie , Shiwei Zhou
Abstract: The present invention proposes an ultrasound imaging system and method for measuring a property of a region of interest in a subject by using shear wave, wherein an ultrasound probe is configured to sequentially transmit, to each of a plurality of focal spots (320, 322, 324) in the region of interest, a push pulse (310, 312, 314) for generating a shear wave (330, 332, 334), each of the plurality of focal spots having a mutually different depth value (z1, z2, z3), and to receive ultrasound echo signals adjacent (350, 352, 354) to each of the plurality of focal spots; a shear wave detector is configured to derive, for each of the plurality of focal spots, a first parameter indicating a property of the generated shear wave, based on the received ultrasound echo signals; and a property estimator is configured to estimate a second parameter indicating the property of the region of interest as a function of the derived first parameters.
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公开(公告)号：US20170273658A1
公开(公告)日：2017-09-28
申请号：US15503812
申请日：2015-08-12
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Shougang Wang , Balasundar Iyyavu Raju , Shiwei Zhou , Jingping Xu
CPC classification number: A61B8/06 , A61B8/08 , A61B8/0808 , A61B8/085 , A61B8/4427 , A61B8/4477 , A61B8/485 , A61B8/486 , A61B8/488 , A61B8/5223 , A61B8/5246 , A61B8/5276 , G01S7/52022 , G01S7/52036 , G01S15/8915 , G06T7/12 , G06T2207/10132 , G06T2207/20036 , G06T2207/20152 , G06T2207/30101
Abstract: Ultrasound-based acoustic streaming for deciding whether material is fluid is dependent upon any one or more of a variety of criteria. Examples are displacement, speed (230), temporal or spatial flow variance, progressive decorrelation, slope or straightness of accumulated signal to background comparisons over time, and relative displacement to adjacent soft tissue. Echogenicity-based area identification is combinable with the above movement characteristic detection in the deciding. Fluid pool identification is performable from the area-limited acoustic streaming testing and ultrasound attenuation readings. Candidates from among the areas (210) are screenable based on specific shapes or bodily organs detected. Natural flow can be excluded from streaming detection by identification of blood vessels (206). Processing for each FAST ultrasound view (202), or for the entire procedure, is performable automatically, without need for user intervention or with user intervention to identify suspected areas.
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公开(公告)号：US20170079620A1
公开(公告)日：2017-03-23
申请号：US15311553
申请日：2015-05-11
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Hua Xie , Shiwei Zhou , Jean-Luc Robert , Vijay Thakur Shamdasani
CPC classification number: A61B8/5215 , A61B8/4245 , A61B8/4477 , A61B8/485 , G01S7/52022
Abstract: Ultrasound motion-estimation includes issuing multiple ultrasound pulses, spaced apart from each other in a propagation direction of a shear wave, to track axial motion caused by the wave. The wave has been induced by an axially-directed push. Based on the motion, autocorrelation is used to estimate an axial displacement. The estimate is used as a starting point (234) in a time-domain based motion tracking algorithm for modifying the estimate so as to yield a modified displacement. The modification can constitute an improvement upon the estimate. The issuing may correspondingly occur from a number of acoustic windows, multiple ultrasound imaging probes imaging respectively via the windows. The autocorrelation, and algorithm, operate specifically on the imaging acquired via the pulses used in tracking the motion caused by the wave that was induced by the push, the push being a single push. The algorithm may involve cross-correlation over a search area incrementally increased subject to an image matching criterion (S358).
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