-
公开(公告)号：US10952699B2
公开(公告)日：2021-03-23
申请号：US16061425
申请日：2016-12-30
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Shiwei Zhou , Balasundar Iyyavu Raju , Shougang Wang , Jingping Xu
Abstract: An ultrasound imaging apparatus (200, 600) may include at least one controller (210, 610) which may be configured to: acquire ultrasound data of an anatomical region-of-interest (ROI), the ultrasound data including at least two frames acquired at different times over an interval of time as a push force is applied to induce movement in the anatomical ROI; determine a correlation between at least two of the acquired frames and form corresponding correlation coefficients; generate a correlation coefficient (CC) map based upon the determined correlation information between the at least two frames; and distinguish fluid from tissue within the CC map based upon a comparison of the correlation coefficients with at least one threshold value.
-
公开(公告)号：US10588604B2
公开(公告)日：2020-03-17
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
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).
-
公开(公告)号：US20200268343A1
公开(公告)日：2020-08-27
申请号：US16061425
申请日：2016-12-30
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Shiwei Zhou , Balasundar Iyyavu Raju , Shougang Wang , Jingping Xu
Abstract: An ultrasound imaging apparatus (200, 600) may include at least one controller (210, 610) which may be configured to: acquire ultrasound data of an anatomical region-of-interest (ROI), the ultrasound data including at least two frames acquired at different times over an interval of time as a push force is applied to induce movement in the anatomical ROI; determine a correlation between at least two of the acquired frames and form corresponding correlation coefficients; generate a correlation coefficient (CC) map based upon the determined correlation information between the at least two frames; and distinguish fluid from tissue within the CC map based upon a comparison of the correlation coefficients with at least one threshold value.
-
公开(公告)号：US10653388B2
公开(公告)日：2020-05-19
申请号：US15514003
申请日：2015-09-22
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 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.
-
公开(公告)号：US09918696B2
公开(公告)日：2018-03-20
申请号：US14900191
申请日：2015-01-13
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Jingping Xu , Balasundar Iyyavu Raju , Sheng-Wen Huang , Shougang Wang , Emil George Radulescu , Shiwei Zhou
CPC classification number: A61B8/0833 , A61B8/00 , A61B8/14 , A61B8/46 , A61B8/461 , A61B8/467 , A61B8/469 , A61B8/48 , A61B8/52 , A61B8/5207 , A61B8/5215 , A61B8/5223 , G01S7/52038
Abstract: Existing gas pocket detection approaches are based on visual observations of B-mode ultrasound images showing comparisons between normal soft tissue and gas pockets, which are time-consuming and dependent on operator experience. The present invention proposes an ultrasound system and a method of detecting a gas pocket. The ultrasound system comprises: an ultrasound probe (110) for transmitting an ultrasound signal toward the ROI and acquiring an ultrasound echo signal reflected from the ROI along a plurality of scanning lines; an obtaining unit (130) for obtaining a second harmonic component of the ultrasound echo signal for each depth of a plurality of depths along each scanning line of the plurality of scanning lines; and a deriving unit (140) for deriving a change in a center frequency of the second harmonic component along with the depth.
-
Patent Agency Ranking
公开(公告)号：US20170188997A1
公开(公告)日：2017-07-06
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
CPC classification number: A61B8/485 , A61B8/085 , A61B8/465 , A61B8/54 , A61B18/14 , A61B2018/00351 , A61B2018/00529 , A61B2018/00547 , A61B2018/00577 , A61B2018/0066 , A61B2018/00738 , A61B2018/00994
Abstract: In a diagnostic scanner for shear wave elastography imaging an ultrasound exposure safety processoris is configured for spatially relating respective definitions of an imaging zone (324), and an extended dead-tissue zone (312) that includes both a dead-tissue zone and a surrounding margin. Based on whether a push pulse focus (344, 348, 352) is to be within the extended dead-tissue zone, the processor automatically decides as to a level of acoustic power with which the pulse is to be produced. If it is to be within, the pulse may be produced with a mechanical index, a thermal index, and/or a spatial-peak-temporal-average intensity that exceeds respectively 1.9, 6.0 and 720 milliwatts per square centimeter. The imaging zone may be definable interactively so as to dynamically trigger the deciding and the producing, with optimal push pulse settings being dynamically derived automatically, without the need for user intervention. A display of multiple push pulse sites (344-352) allows user manipulation of spatial definition indicia (336) to dynamically control displacement tracking.
-
公开(公告)号：US09579078B2
公开(公告)日：2017-02-28
申请号：US14345823
申请日：2012-09-17
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Ajay Anand , John Petruzzello , Shiwei Zhou , Rajendra Singh Sisodia , Pallavi Vajinepalli , Lalit Gupta , Ganesan Ramachandran , Celine Firtion
CPC classification number: A61B8/06 , A61B8/0866 , A61B8/0891 , A61B8/4494 , A61B8/483 , A61B8/488 , A61B8/5223 , G01S7/52036 , G01S7/52077 , G01S7/52084 , G01S7/52085 , G01S15/8927
Abstract: A device images time-wise in parallel using transducer elements of a group. The elements are of a current group and imaging is time-wise sequential by group. The groups may be spatially disposed with respect to each other so as to mutually intermesh element-wise. The imaging may include volumetric imaging. The device may be configured for not collectively using any of the elements to focus, nor to steer, a beam used in the imaging. The device may further be operable to transition between spacing states at least one of which is characterized by a respective minimum, nonzero, degree of intra-group, element-to-element non-adjacency, or may be fixed at a selected spacing state. The transitioning may be automatic, in response to input indicative of blood vessel size and/or depth.
Abstract translation: 使用组的换能器元件并行地进行设备图像。 这些元素是当前组，成像是按时间顺序的。 这些组可以相对于彼此在空间上设置，以便以元素方式相互互相啮合。 成像可以包括体积成像。 该装置可以被配置为不集体地使用任何元件来聚焦，也不能引导在成像中使用的束。 设备还可以可操作以在间隔状态之间转换，其中至少一个状态的特征在于相应的最小，非零程度的组内元件到元件非邻接，或者可以固定在选定的间隔状态。 响应于指示血管尺寸和/或深度的输入，转换可以是自动的。
-
公开(公告)号：US11185311B2
公开(公告)日：2021-11-30
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
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.
-
公开(公告)号：US11090029B2
公开(公告)日：2021-08-17
申请号：US14906577
申请日：2014-07-10
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Rajendra Singh Sisodia , Shriram Sethuraman , John Petruzzello , Ajay Anand , Shiwei Zhou , Ramon Quido Erkamp , Nagaraju Bussa , Vikram Basawaraj Patil Okaly , Sushanth Govinahalli Sathyanarayana , Krishnamoorthy Palanisamy
Abstract: A non-imaging diagnostic ultrasound system for carotid artery diagnosis has a two dimensional array probe (10) 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.
-
公开(公告)号：US10939894B2
公开(公告)日：2021-03-09
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
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, 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 are screenable based on specific shapes or bodily organs detected. Natural flow can be excluded from streaming detection by identification of blood vessels. Processing for each FAST ultrasound view, or for the entire procedure, is performable automatically, without need for user intervention or with user intervention to identify suspected areas.
-
-
-
-
-
-
-
-
-
Search Results
22
records
(took 0.016 seconds)
