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公开(公告)号：EP1581118A1
公开(公告)日：2005-10-05
申请号：EP03813959.8
申请日：2003-12-17
IPC分类号： A61B8/08
CPC分类号： G01S15/8977 , A61B8/0825 , G01S7/52046
摘要： The invention relates to an ultrasonic medical imaging apparatus intended for analyzing an organic medium potentially including defects within a noisy structure. Ultrasound signals focused at a given depth according to M distinct successive excitations are emitted and an image formation module makes it possible to obtain an image of said depth after reception of responses from the medium. The invention is such that the apparatus includes a module for using said responses for constructing a rectangular response matrix of dimension N*M, a coefficient Knm of which represents the response from the medium received by the transducer n following an excitation m, decomposing said response matrix into singular values, using the singular vectors corresponding to said singular values for locating singular zones corresponding to defects in the medium. Application: Ultrasonic apparatus particularly in the medical field.
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公开(公告)号：EP1395847A1
公开(公告)日：2004-03-10
申请号：EP02730595.2
申请日：2002-05-21
CPC分类号： G01S7/52026 , G01N2291/044 , G01S7/52036 , G01S15/8915 , G01S15/8995
摘要： The invention relates to a method of analyzing a medium in order to label the zones of said medium as a function of the contents of said zones, which medium is exposed to ultrasound signals. The method includes a step for receiving echographic ultrasound signals by means of a set of elements, thus defining a set of received signals, a step for correlating at least one pair of signals which are received by two elements from among the set of elements and originate from at least one zone of said medium, a step for analyzing the maximum correlation value as a function of the distance between the two elements whereby the correlated signals are received, said analysis step enabling the detection of the presence of a coherent reflector in said zone of said medium, and a step for labeling the zone in conformity with the result of the analysis step. The invention enables a binary image to be formed of a medium wherefrom noisy data originates, the binary values being attributed to the image as a function of the detection of a coherent reflector.
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3.发明公开METHOD AND APPARATUS FOR AUTOMATICALLY DEVELOPING A HIGH PERFORMANCE CLASSIFIER FOR PRODUCING MEDICALLY MEANINGFUL DESCRIPTORS IN MEDICAL DIAGNOSIS IMAGING 审中-公开方法和设备HOCHLEISTUNGSSORTIERERS的自动开发性医疗RELEVANT描述符医疗诊断影像
公开(公告)号：EP1828961A2
公开(公告)日：2007-09-05
申请号：EP05850867.2
申请日：2005-12-13
发明人： SCHAFFER, James, David , ALI, Walid , ESHELMAN, Larry, J. , COHEN-BACRIE, Claude , LAGRANGE, Jean-Michel , LEVRIER, Claire , VILLAIN, Nicholas , ENTREKIN, Robert, R.
IPC分类号： G06K9/62
CPC分类号： G06K9/6217
摘要： A method for determining the presence or absence of malignant features in medical images, wherein a plurality of base comparison or training images of various types of lesions taken of actual patient is examined by one or more image reading experts to create a first database array. Low-level features of each of the lesions in the same plurality of base comparisons or training images are determined using one or more image processing algorithms to obtain a second database array set. The first and second database array set are combined to create a training database array set which is input to a learning system that discovers/learns a classifier that maps from a subset of the low-level features to the expert's evaluation in the first database array set. The classifier is used to determine the presence of a particular mid- level feature in an image of lesion in a patient based solely on the image.
摘要翻译： 一种用于确定性采矿方法存在或不存在的在医学图像中的恶性特征，worin基数进行比较或各种类型采取实际的患者的病灶的锻炼图像生成多个由一个或多个图像读取专家审查的，以产生第一数据库阵列。 每个基地比较或锻炼的图像的相同的多个病灶的低级别特征是确定性的使用一个或多个图像处理算法，以获得第二数据库阵列组开采。 第一和第二数据库阵列组相结合，建立一个训练数据库阵列组的所有输入到学习系统没有发现的/学习的分类做了从低级别的功能，以专家的评价在第一数据库阵列组的一个子集地图 ， 该分类器用于确定性矿井的特定中等特征的存在病变的图像中在图像上完全基于患者。
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公开(公告)号：EP1532470A1
公开(公告)日：2005-05-25
申请号：EP03792549.2
申请日：2003-08-05
发明人： LAGRANGE, Jean-Michel , COHEN-BACRIE, Claude , LEVRIER, Claire , VILLAIN, Nicolas , ENTREKIN, Robert, R.
CPC分类号： G01S15/8995 , G01S7/52077
摘要： The invention relates to an ultrasonic imaging apparatus using a method for combining CMB images of the same object including a step of seeking representative contours CNT of an interface on the images to be combined IM[I], IM[J], said step being intended to define interest areas IA[I], IA[J] in the vicinity of said representative contours, a step ANA of analyzing the interest areas IA[I], IA[J], said analysis step ANA being intended to allocate weights W[I], W[J] to the points on said interest areas IA[I], IA[J] and to the points corresponding to said interest areas IA[I], IA[J] on the various images, a step CC of constructing a combination image IMC, a point on the combination image IMC corresponding to a point on at least one interest area IA being obtained from a weighting of the corresponding points on the images to be combined IM[I], IM[J] according to the weights W[I], W[J] allocated in said analysis step ANA. The invention makes it possible to preserve the properties of certain areas of a particular image within a combination of images without for all that being detrimental to the advantages shown by the combination. Application: Ultrasonic imaging apparatus using a spatial combination of images.
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公开(公告)号：EP1504284B1
公开(公告)日：2009-09-16
申请号：EP03712594.5
申请日：2003-04-22
发明人： LEVRIER, Claire , COHEN-BACRIE, Claude , VILLAIN, Nicolas , LAGRANGE, Jean-Michel , ENTREKIN, Robert
IPC分类号： G01S7/52
CPC分类号： G01S7/52049 , G01S15/8977 , G01S15/8995
摘要： The invention relates to an ultrasound imaging system for forming an echographic image of a medium, which system includes a set [REC] of transducer elements [EL] which are operative in a transmission mode and in a reception mode for ultrasound waves, construction means [REB] for constructing echographic signals on the basis of signals [S[1] ... S[N]] received on said transducer elements [EL], display means [DIS] which are coupled to said construction means [REB] in order to display an image of the medium formed by means of the echographic signals. Said construction means [REB] are such that in so-called exclusion zones, in which a coherent reflector is detected and which are determined by determination means [DET], the reception delays [D] are estimated in a manner [INT] other than that [CORR] used for the other zones. The calculation [CAL] of echographic signals is then carried out on the basis of said estimated delays [D[Z],Di[Z]]. The invention enables a correction of phase aberrations and nevertheless offers an excellent lateral resolution, notably in the case of point coherent reflectors.
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公开(公告)号：EP1532470B1
公开(公告)日：2008-03-26
申请号：EP03792549.2
申请日：2003-08-05
发明人： LAGRANGE, Jean-Michel , COHEN-BACRIE, Claude , LEVRIER, Claire , VILLAIN, Nicolas , ENTREKIN, Robert, R.
CPC分类号： G01S15/8995 , G01S7/52077
摘要： The invention relates to an ultrasonic imaging apparatus using a method for combining CMB images of the same object including a step of seeking representative contours CNT of an interface on the images to be combined IM[I], IM[J], said step being intended to define interest areas IA[I], IA[J] in the vicinity of said representative contours, a step ANA of analyzing the interest areas IA[I], IA[J], said analysis step ANA being intended to allocate weights W[I], W[J] to the points on said interest areas IA[I], IA[J] and to the points corresponding to said interest areas IA[I], IA[J] on the various images, a step CC of constructing a combination image IMC, a point on the combination image IMC corresponding to a point on at least one interest area IA being obtained from a weighting of the corresponding points on the images to be combined IM[I], IM[J] according to the weights W[I], W[J] allocated in said analysis step ANA. The invention makes it possible to preserve the properties of certain areas of a particular image within a combination of images without for all that being detrimental to the advantages shown by the combination. Application: Ultrasonic imaging apparatus using a spatial combination of images.
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公开(公告)号：EP1504284A1
公开(公告)日：2005-02-09
申请号：EP03712594.5
申请日：2003-04-22
发明人： LEVRIER, Claire , COHEN-BACRIE, Claude , VILLAIN, Nicolas , LAGRANGE, Jean-Michel , ENTREKIN, Robert
IPC分类号： G01S7/52
CPC分类号： G01S7/52049 , G01S15/8977 , G01S15/8995
摘要： The invention relates to an ultrasound imaging system for forming an echographic image of a medium, which system includes a set [REC] of transducer elements [EL] which are operative in a transmission mode and in a reception mode for ultrasound waves, construction means [REB] for constructing echographic signals on the basis of signals [S[1] ... S[N]] received on said transducer elements [EL], display means [DIS] which are coupled to said construction means [REB] in order to display an image of the medium formed by means of the echographic signals. Said construction means [REB] are such that in so-called exclusion zones, in which a coherent reflector is detected and which are determined by determination means [DET], the reception delays [D] are estimated in a manner [INT] other than that [CORR] used for the other zones. The calculation [CAL] of echographic signals is then carried out on the basis of said estimated delays [D[Z],Di[Z]]. The invention enables a correction of phase aberrations and nevertheless offers an excellent lateral resolution, notably in the case of point coherent reflectors.
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8.发明公开ULTRASOUND PROCESS AND APPARATUS FOR THE DETERMINATION OF THE LOCATION OF A PARIETAL SURFACE IN A TISSUE AND OF THE ABSOLUTE RADIUS OF AN ARTERY 审中-公开超声的方法和装置用于确定在织物表面的位置和动脉的绝对RADIUS
公开(公告)号：EP1055133A1
公开(公告)日：2000-11-29
申请号：EP99958137.4
申请日：1999-11-29
发明人： COHEN-BACRIE, Claude
CPC分类号： A61B5/02007 , A61B8/08 , G01S7/539 , G01S15/42 , G01S15/89
摘要： An ultrasound process and apparatus for determining the location of an ultrasonic homogeneity discontinuity called parietal surface situated in a tissue from a radio-frequency signal (y(z)) function of digital depths along an excitation line (Z) crossing said parietal surface, comprising steps of: filtering the radio-frequency signal in order to provide a tissue signal (e(z)) representative of tissue scatterers, apart from a radio-frequency excitation signal; filtering the tissue signal (e(z)) in order to provide a variance amplitude signal (S(z)) as a function of the digital depths on the excitation line wherefrom the corresponding parietal surface digital depth is determined. This process is used to estimate an artery radius from the digital depths of the arterial walls on the excitation line.
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