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31. 发明授权

US10188370B2 Ultrasound imaging system and method 有权
公开(公告)号：US10188370B2
公开(公告)日：2019-01-29
申请号：US15323833
申请日：2015-12-18
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Xiaolin Gu , Vijay Thakur Shamdasani , Yinhui Deng , Xiaomin Li , Ying Wu
IPC分类号： A61B8/00 , A61B8/08
摘要： The present invention proposes an ultrasound imaging system and a method of calculating a perfusion parameter ratio. The proposed approach comprises: acquiring a time intensity curve of a contrast agent for each region unit of a plurality of region units of an imaging region of a subject, each region unit comprising one or more points of the imaging region; selecting, among the plurality of region units, a first, second and third sets of region units respectively corresponding to normal tissue, vessel and background noise, based on the time-intensity curves; calculating a perfusion parameter for each of one or more region units of the first set of region units and a perfusion parameter for a region of interest in the imaging region based on the calculated time-intensity curves; calculating a reference perfusion parameter based on the perfusion parameters of the one or more region units; and calculating a ratio value for the region of interest as a ratio of the perfusion parameter of the region of interest and the reference perfusion parameter. Since the reference perfusion parameter is calculated based on the one or more region units which are automatically selected, the approach requires no manual manipulation and the calculated perfusion parameter ratios are independent of operator experience.

32. 发明授权

US09730675B2 Ultrasound imaging system and an ultrasound imaging method 有权
公开(公告)号：US09730675B2
公开(公告)日：2017-08-15
申请号：US15113510
申请日：2015-01-21
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Yinhui Deng , Xiaomin Li , Xiaolin Gu , Vijay Thakur Shamdasani , Ying Wu
IPC分类号： A61B8/00 , A61B8/08 , A61B8/14
CPC分类号： A61B8/523 , A61B8/14 , A61B8/145 , A61B8/4488 , A61B8/4494 , A61B8/465 , A61B8/466 , A61B8/469 , A61B8/483 , A61B8/54
摘要： The present invention provides an ultrasound imaging system and an ultrasound imaging method for improving the imaging quality of the desired imaging plane in the volume of interest of a subject. According to the present invention, it is possible to directly scan the desired imaging plane by exploiting the capability of a 2D matrix ultrasound transducer and/or the flexibility of the position/orientation of the ultrasound probe. In some cases, the setting parameters of the transducer elements can be adjusted so that the ultrasound signal transmitted from the transducer elements is able to derive ultrasound echo data of the desired imaging plane without moving the probe. In other cases where the desired imaging plane cannot be directly scanned without changing the position/orientation of the ultrasound probe, the position/orientation of the ultrasound probe can be adjusted by means of user interaction, namely by outputting the instruction for guiding the user to move the probe so as to enable direct scanning of the desired imaging plane. In this way, the image of the desired imaging plane is not reconstructed by interpolation of the ultrasound echo data of the plurality of scanning planes (which are determined by the setting parameters of the transducer elements), but instead it is reconstructed from the ultrasound echo data of the desired imaging plane itself. In other words, the desired imaging plane is directly scanned. Thus, the image quality of the desired imaging plane is improved and may help doctors conduct a more accurate diagnosis.

33. 发明申请

US20170196539A1 ULTRASOUND IMAGING SYSTEM AND METHOD 审中-公开
公开(公告)号：US20170196539A1
公开(公告)日：2017-07-13
申请号：US15323833
申请日：2015-12-18
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Xiaolin Gu , Vijay Thakur Shamdasani , Yinhui Deng , Xiaomin Li , Ying Wu
IPC分类号： A61B8/08 , A61B8/00
CPC分类号： A61B8/481 , A61B8/085 , A61B8/463 , A61B8/483 , A61B8/5223
摘要： The present invention proposes an ultrasound imaging system and a method of calculating a perfusion parameter ratio. The proposed approach comprises: acquiring a time intensity curve of a contrast agent for each region unit of a plurality of region units of an imaging region of a subject, each region unit comprising one or more points of the imaging region; selecting, among the plurality of region units, a first, second and third sets of region units respectively corresponding to normal tissue, vessel and background noise, based on the time-intensity curves; calculating a perfusion parameter for each of one or more region units of the first set of region units and a perfusion parameter for a region of interest in the imaging region based on the calculated time-intensity curves; calculating a reference perfusion parameter based on the perfusion parameters of the one or more region units; and calculating a ratio value for the region of interest as a ratio of the perfusion parameter of the region of interest and the reference perfusion parameter. Since the reference perfusion parameter is calculated based on the one or more region units which are automatically selected, the approach requires no manual manipulation and the calculated perfusion parameter ratios are independent of operator experience.

34. 发明授权

US11747456B2 Location device and system for locating an ultrasound acoustic sensor 有权
公开(公告)号：US11747456B2
公开(公告)日：2023-09-05
申请号：US16492446
申请日：2018-03-01
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Man Nguyen , Hua Xie , Sheng-Wen Huang , Carolina Amador Carrascal , Vijay Thakur Shamdasani
IPC分类号： A61B34/20 , G01S7/52 , A61B90/00 , A61B8/00
CPC分类号： G01S7/52085 , A61B34/20 , G01S7/52036 , A61B8/4263 , A61B2034/2063 , A61B2090/3784
摘要： A location device is provided for determining the location of an acoustic sensor. A location process makes use of a plurality of transmit beams (wherein a beam is defined as a transmission from all transducers of an ultrasound array), with a frequency analysis to identify if there is a signal reflected from the acoustic sensor. A location is obtained from the plurality of frequency analyses.

35. 发明授权

US11726195B2 Ultrasound systems and methods for measuring acoustic attenuation coefficients 有权
公开(公告)号：US11726195B2
公开(公告)日：2023-08-15
申请号：US16648010
申请日：2018-09-06
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Sheng-Wen Huang , Hua Xie , Jean-Luc Francois-Marie Robert , Man Nguyen , Vijay Thakur Shamdasani
IPC分类号： G01S7/52 , A61B8/00 , G01N29/11 , G01S15/89 , G01H3/12 , G01H9/00 , G01N29/24 , G01N29/34
CPC分类号： G01S7/52085 , A61B8/58 , G01H3/125 , G01H9/002 , G01N29/11 , G01N29/2406 , G01N29/2437 , G01N29/343 , G01S7/52036 , G01S15/895 , G01N2291/015 , G01N2291/02475 , G01S15/8959
摘要： Systems and methods for improving spectral-shift methods for calculating acoustic attenuation coefficients are disclosed. Systems, methods, and apparatuses for transmitting ultrasound pulse sequences for improved signal-to-noise outside the main passband of ultrasound transducers are disclosed. Systems, methods, and apparatuses for using the echoes from the transmitted pulse sequences to calculate the attenuation coefficient are disclosed.

36. 发明申请

US20220386996A1 ULTRASONIC SHEARWAVE IMAGING WITH PATIENT-ADAPTIVE SHEARWAVE GENERATION 有权
公开(公告)号：US20220386996A1
公开(公告)日：2022-12-08
申请号：US17886153
申请日：2022-08-11
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Unmin Bae , Vijay Thakur Shamdasani
IPC分类号： A61B8/08 , A61B8/06 , A61B8/00
摘要： An ultrasonic diagnostic imaging system acquires different kinds of pilot images showing different characteristics of a region of a body where shearwave measurements are performed. The pilot images are analyzed by a push pulse locator to adaptively generate push pulses at locations in the body which minimize or avoid shearwave travel through blood vessels, through regions of stiffness inhomogeneities in the body, or at times when shearwaves are adversely affected by tissue motion.

37. 发明申请

US20220202396A1 SYSTEMS, METHODS, AND APPARATUSES FOR CONFIDENCE MAPPING OF SHEAR WAVE IMAGING 有权
公开(公告)号：US20220202396A1
公开(公告)日：2022-06-30
申请号：US17698535
申请日：2022-03-18
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Ji Cao , Lars Jonas Olsson , Vijay Thakur Shamdasani , David Wesley Clark , Hua Xie , Jean-Luc Francois-Marie Robert , Alexey Viktorovich Cherepakhin , Bruce Adrian Kincy
IPC分类号： A61B8/00 , A61B8/08 , A61B8/14
摘要： Systems, methods, and apparatuses for confidence mapping of shear wave measurements are disclosed. Confidence maps of shear wave image measurements may be generated from one or more confidence factors. Masking of graphical overlays of tissue stiffness values, based at least in part on the confidence map is disclosed. The confidence map and/or masked graphical overlays of tissue stiffness values may be superimposed on ultrasound images and provided on a display.

38. 发明授权

US11324485B2 Ultrasound imaging system with a neural network for deriving imaging data and tissue information 有权
公开(公告)号：US11324485B2
公开(公告)日：2022-05-10
申请号：US16474319
申请日：2018-01-03
申请人： KONINKLIJKE PHILIPS N.V.
发明人： David Hope Simpson , Earl M. Canfield , Robert Gustav Trahms , Vijay Thakur Shamdasani
IPC分类号： A61B8/08 , G06T7/00 , A61B8/13 , G01S7/52
摘要： An ultrasound system according to some embodiments may include an ultrasound transducer configured to transmit ultrasound pulses toward tissue and generate echo signals responsive to the ultrasound pulses, a channel memory configured to store the echo signals, a beamformer configured to generated beamformed signals responsive to the echo signals, a neural network configured to receive one or more samples of the echo signals or the beamformed signals and produce a first type of ultrasound imaging data, and a processor configured to generate a second type of ultrasound imaging data, wherein the one or more processors may be further configured to generate an ultrasound image based on the first type of ultrasound imaging data and the second type of ultrasound imaging data and to cause a display communicatively coupled therewith to display the ultrasound image.

39. 发明授权

US11116479B2 Time-based parametric contrast enhanced ultrasound imaging system and method 有权
公开(公告)号：US11116479B2
公开(公告)日：2021-09-14
申请号：US15859792
申请日：2018-01-02
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Xiaolin Gu , Yinhui Deng , Xiaomin Li , Vijay Thakur Shamdasani
IPC分类号： A61B8/08 , A61B8/14 , A61B8/06 , G06T11/00 , G06T11/20 , G06T11/60
摘要： An ultrasonic diagnostic imaging system and method acquire a sequence of image data as a bolus of contrast agent washes into and out of the liver. The image data of contrast intensity is used to compute time-intensity curves of contrast flow for points in an ultrasound image. Time-dependent data is calculated from the data of the time-intensity curves which, in a described implementation, comprise first and second derivatives of the time-intensity curves. A color map is formed of the time-dependent data or the polarities of the data and displayed in a parametric image as a color overlay of a contrast image of the liver.

40. 发明授权

US11006927B2 Ultrasound imaging apparatus 有权
公开(公告)号：US11006927B2
公开(公告)日：2021-05-18
申请号：US15561264
申请日：2016-03-31
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Cecile Dufour , Stephane Allaire , Oudom Somphone , Vijay Thakur Shamdasani , Gary Cheng-How Ng
IPC分类号： A61B8/08 , G01S7/52 , G01S15/89 , G06T7/70 , A61B8/00 , G06T7/00 , G06T7/20
摘要： An ultrasound imaging apparatus (16) is disclosed for providing two-dimensional ultrasound images of a patient. The ultrasound imaging apparatus comprises an input interface (18) for receiving three-dimensional ultrasound data of a volume of the patient from an ultrasound acquisition unit as a continuous data stream and a motion detection unit (22) for determining a motion of an object in the three-dimensional ultrasound data and a direction of the motion in the three-dimensional ultrasound data. An image processing unit (20) determines a spatial rotation angle (46) of an image plane (32, 34) within the volume on the basis of the determined direction of the motion and determines two-dimensional ultrasound image data on the basis of the three-dimensional ultrasound data in the image plane within the volume. The two-dimensional image data is provided via an output interface to a display unit (26).

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