公开(公告)号：US08211019B2

公开(公告)日：2012-07-03

申请号：US11334089

申请日：2006-01-18

申请人： Chikayoshi Sumi

发明人： Chikayoshi Sumi

IPC分类号： A61B8/00

CPC分类号： A61B8/08 ,  A61B5/0051 ,  A61B5/0053 ,  A61B5/015 ,  A61B5/7239 ,  A61B8/485 ,  G01S7/52042 ,  G01S7/52095 ,  G01S15/582 ,  G01S15/8906 ,  G01S15/8984

摘要： A clinical apparatus includes an ultrasound transducer having at least one oscillator, a transmitter circuit which supplies drive signals to the oscillator of the ultrasound transducer, a receiver circuit which receives echo signals outputted from the oscillator of the ultrasound transducer and which performs phase matching processing on the echo signals, and a data processor which yields superimposed echo signals by superimposing plural beams generated in different directions, where the plural beams are generated by performing at least one of (i) a mechanical scan, (ii) transmission and reception of steered beams in the different directions, and (iii) aperture synthesis in the different directions with respect to the received echo signals.

摘要翻译： 临床装置包括具有至少一个振荡器的超声换能器，向超声波换能器的振荡器提供驱动信号的发射器电路，接收从超声换能器的振荡器输出的回波信号的接收器电路， 回波信号，以及数据处理器，其通过叠加在不同方向上生成的多个波束来产生叠加的回波信号，其中通过执行以下至少一个来生成多个波束：（i）机械扫描，（ii）转向波束的发送和接收 在不同的方向上，以及（iii）相对于所接收的回波信号在不同方向上的孔径合成。

公开(公告)号：US20110204893A1

公开(公告)日：2011-08-25

申请号：US13099250

申请日：2011-05-02

申请人： Chikayoshi SUMI

发明人： Chikayoshi SUMI

IPC分类号： G01R33/44 ,  G06F19/00 ,  G01L1/00

CPC分类号： G01S15/899 ,  A61B5/0051 ,  A61B5/0053 ,  A61B5/015 ,  A61B8/08 ,  A61B8/485 ,  A61B8/488 ,  A61N7/02 ,  G01S7/52042 ,  G01S15/8977 ,  G01S15/8979

摘要： The present invention provides elastic constant and visco elastic constant measurement apparatus etc. for measuring in the ROI in living tissues elastic constants such as shear modulus, Poisson's ratio, Lame constants, etc., visco elastic constants such as visco shear modulus, visco Poisson's ratio, visco Lame constants, etc. and density even if there exist another mechanical sources and uncontrollable mechanical sources in the object. The elastic constant and visco elastic constant measurement apparatus is equipped with means of data storing 2 (storage of deformation data measured in the ROI 7 etc.) and means of calculating elastic and visco elastic constants 1 (calculator of shear modulus etc. at arbitrary point in the ROI from measured strain tensor data etc.), the means of calculating elastic and visco elastic constants numerically determines elastic constants etc. from the first order partial differential equations relating elastic constants etc. and strain tensor etc.

摘要翻译： 本发明提供弹性常数和粘弹性常数测量装置等，用于在生物组织的ROI中测量弹性常数如剪切模量，泊松比，拉姆常数等，粘弹性常数如粘度剪切模量，粘度泊松比 ，粘度Lame常数等，即使在物体中存在另一种机械源和不可控制的机械源，密度也是如此。 弹性常数和粘弹性常数测量装置配备有数据存储装置2（存储在ROI 7等中测量的变形数据），以及计算弹性和粘弹性常数1（任意点处的剪切模量计算器） 在来自测量应变张量数据的ROI中），计算弹性和粘弹性常数的方法从弹性常数等与应变张量等的一阶偏微分方程数值地确定弹性常数等。

公开(公告)号：US20060184025A1

公开(公告)日：2006-08-17

申请号：US11312609

申请日：2005-12-21

申请人： Chikayoshi Sumi

发明人： Chikayoshi Sumi

IPC分类号： A61B8/00

CPC分类号： G01S15/899 ,  A61B5/0051 ,  A61B5/0053 ,  A61B5/015 ,  A61B8/08 ,  A61B8/485 ,  A61B8/488 ,  A61N7/02 ,  G01S7/52042 ,  G01S15/8977 ,  G01S15/8979

摘要： The present invention provides elastic constant and visco elastic constant measurement apparatus etc. for measuring in the ROI in living tissues elastic constants such as shear modulus, Poisson's ratio, Lame constants, etc., visco elastic constants such as visco shear modulus, visco Poisson's ratio, visco Lame constants, etc. and density even if there exist another mechanical sources and uncontrollable mechanical sources in the object. The elastic constant and visco elastic constant measurement apparatus is equipped with means of data storing 2 (storage of deformation data measured in the ROI 7 etc.) and means of calculating elastic and visco elastic constants 1 (calculator of shear modulus etc. at arbitrary point in the ROI from measured strain tensor data etc.), the means of calculating elastic and visco elastic constants numerically determines elastic constants etc. from the first order partial differential equations relating elastic constants etc. and strain tensor etc.

摘要翻译： 本发明提供弹性常数和粘弹性常数测量装置等，用于在生物组织的ROI中测量弹性常数如剪切模量，泊松比，拉姆常数等，粘弹性常数如粘度剪切模量，粘度泊松比 ，粘度Lame常数等，即使在物体中存在另一种机械源和不可控制的机械源，密度也是如此。 弹性常数和粘弹性常数测量装置配备有数据存储装置2（存储在ROI 7等中测量的变形数据），以及计算弹性和粘弹性常数1（任意点处的剪切模量计算器） 在来自测量应变张量数据的ROI中），计算弹性和粘弹性常数的方法从弹性常数等与应变张量等的一阶偏微分方程数值地确定弹性常数等。

公开(公告)号：US11026660B2

公开(公告)日：2021-06-08

申请号：US15651545

申请日：2017-07-17

申请人： Chikayoshi Sumi

发明人： Chikayoshi Sumi

IPC分类号： A61B8/08 ,  G01S7/52 ,  A61B8/06 ,  A61B5/00 ,  A61B5/055 ,  A61B8/14 ,  A61B8/00 ,  G01R33/48 ,  G06T7/00 ,  G01S15/89 ,  A61B5/01 ,  G01S15/42

摘要： A displacement measurement apparatus includes an ultrasound sensor transmitting ultrasounds to an object in accordance with a drive signal, and detecting ultrasound echo signals generated in the object to output echo signals; a driving and processing unit supplying the drive signal to the sensor, and processing the echo signals from the sensor to obtain ultrasound echo data; and a controller controlling the driving and processing unit to yield an ultrasound echo data frame at each of plural different temporal phases based on the ultrasound echo data obtained by scanning the object. The ultrasound echo data has one of local single octant spectra, local single quadrant spectra, and local single half-band-sided spectra in a frequency domain. The ultrasound echo data is obtained from plural same bandwidth spectra. A data processing unit calculates a displacement at each local position or distribution thereof in at least one of axial, lateral, and elevational directions by solving simultaneous equations derived at each local position via implementing a predetermined displacement measurement method on the ultrasound echo data yielded at the plural different temporal phases with respect to at least one of the axial, lateral, and elevational carrier frequencies and the phase, or the one of the local single octant spectra, the local single quadrant spectra, and the local single half-band-sided spectra.

公开(公告)号：US20190129026A1

公开(公告)日：2019-05-02

申请号：US15951459

申请日：2018-04-12

申请人： Chikayoshi Sumi

发明人： Chikayoshi SUMI ,  Naoto YAMAZAKI

IPC分类号： G01S13/90 ,  A61B6/00 ,  A61B8/00 ,  G01S15/89 ,  G01S17/89

摘要： A measurement and imaging instrument capable of beamforming with high speed and high accuracy without approximate calculation. The instrument includes a reception unit which receives a wave arriving from a measurement object to generate a reception signal; and an instrument main body which performs a lateral modulation while superposing two waves in a two-dimensional case and three or four waves in a three-dimensional case in beamforming processing of the reception signal in which at least one wave arriving from the measurement object is processed as being transmitted or received in the axial direction or directions symmetric with respect to the axial direction to generate a multi-dimensional reception signal, performs Hilbert transform with respect to the multi-dimensional reception signal, and performs partial derivative processing or one-dimensional Fourier transform to generate analytic signals of the multi-dimensional reception signals of the two waves or the three or four waves.

公开(公告)号：US09993228B2

公开(公告)日：2018-06-12

申请号：US14591777

申请日：2015-01-07

申请人： Chikayoshi Sumi

发明人： Chikayoshi Sumi

IPC分类号： A61B8/08 ,  G01S7/52 ,  A61B8/06 ,  A61B5/055 ,  A61B8/14 ,  A61B8/00 ,  G01R33/48 ,  G06T7/00 ,  G01S15/89 ,  A61B5/00 ,  A61B5/01 ,  G01S15/42

CPC分类号： A61B8/5223 ,  A61B5/0048 ,  A61B5/0059 ,  A61B5/015 ,  A61B5/055 ,  A61B8/06 ,  A61B8/08 ,  A61B8/145 ,  A61B8/42 ,  A61B8/4416 ,  A61B8/4466 ,  A61B8/463 ,  A61B8/485 ,  A61B8/488 ,  A61B8/54 ,  G01R33/4814 ,  G01S7/52042 ,  G01S15/42 ,  G01S15/8977 ,  G01S15/8979 ,  G01S15/899 ,  G01S15/8997 ,  G06T7/0016

摘要： An accurate real-time measurement of a displacement vector is achieved on the basis of the proper beamforming that require a short time for obtaining one echo data frame without suffering affections by a tissue motion. The displacement measurement method includes the steps of: (a) yielding ultrasound echo data frames by scanning an object laterally or elevationally using an ultrasound beam steered electrically and/or mechanically with a single steering angle over an arbitrary three-dimensional orthogonal coordinate system involving existence of three axes of a depth direction, a lateral direction, and an elevational direction; and (b) calculating a displacement vector distribution by implementing a block matching on the predetermined ultrasound echo data frames yielded at more than two phases.

公开(公告)号：US09326748B2

公开(公告)日：2016-05-03

申请号：US13532779

申请日：2012-06-25

申请人： Chikayoshi Sumi

发明人： Chikayoshi Sumi

IPC分类号： A61B8/08 ,  G01S7/52 ,  G01S15/89 ,  A61B5/00 ,  A61B5/01 ,  G01S15/58

CPC分类号： A61B8/08 ,  A61B5/0051 ,  A61B5/0053 ,  A61B5/015 ,  A61B5/7239 ,  A61B8/485 ,  G01S7/52042 ,  G01S7/52095 ,  G01S15/582 ,  G01S15/8906 ,  G01S15/8984

摘要： A clinical apparatus includes a storage to store strain data, strain rate data, or acceleration data measured in a ROI (region of interest); and a data processor to calculate a stress, a stress tensor, a stress tensor component, an inertia, a mean normal stress, a pressure, a mechanical source, an elastic constant, a visco elastic constant, a viscosity, or a density of an arbitrary point within the ROI. The data processor calculates the stress, the stress tensor, the stress tensor component, the inertia, the mean normal stress, the pressure, or the mechanical source based on an equation representing a relation between (i) the stress, the stress tensor, the stress tensor component, the inertia, the mean normal stress, the pressure, or the mechanical source, (ii) the elastic constant, the visco elastic constant, the viscosity, or the density, and (iii) the measured strain data, the strain rate data, or the acceleration data.

摘要翻译： 临床装置包括用于存储在ROI（感兴趣区域）中测量的应变数据，应变率数据或加速度数据的存储器; 以及数据处理器，用于计算应力，应力张量，应力张量分量，惯性，平均法向应力，压力，机械源，弹性常数，粘弹性常数，粘度或密​​度 ROI内的任意点。 数据处理器基于表示（i）应力，应力张量，应力张量，应力张量，应力张量，应力张量，惯性，平均应力，压力或机械源 应力张量分量，惯性，平均应力，压力或机械源，（ii）弹性常数，粘弹性常数，粘度或密​​度，以及（iii）测得的应变数据，应变 速率数据或加速度数据。

公开(公告)号：US09084559B2

公开(公告)日：2015-07-21

申请号：US13424660

申请日：2012-03-20

申请人： Chikayoshi Sumi

发明人： Chikayoshi Sumi

IPC分类号： A61B8/00 ,  A61B8/08

CPC分类号： A61B8/08 ,  A61B8/483 ,  A61B8/485

摘要： A displacement measurement method for achieving, at each position of interest, high accuracy measurement of a displacement, a velocity and a strain in an actually generated beam direction by measuring the beam direction angle from ultrasound echo data. The method includes the steps of: generating an ultrasound echo data frame through scanning an object in a lateral direction with an ultrasound steered beam having one steering angle; calculating both a beam direction and a frequency in the beam direction based on an azimuth angle φ=tan−1(fy/fx), a polar angle θ=cos−1[fz/(fx2+fy2+fz2)1/2], and a frequency (fx2+fy2+fz2)1/2 in the case where first spectral moments calculated from local ultrasound echo data at plural different temporal phases are expressed by a three-dimensional frequency vector (fx, fy, fz); and calculating a displacement component in the beam direction at each position of interest generated between plural different temporal phases.

摘要翻译： 一种位移测量方法，用于通过从超声回波数据测量光束方向角度，在每个感兴趣的位置处实现实际产生的光束方向上的位移，速度和应变的高精度测量。 该方法包括以下步骤：通过用具有一个转向角的超声波转向束在横向上扫描物体来产生超声回波数据帧; 基于方位角＆phgr = tan-1（fy / fx），极角θ= cos-1 [fz /（fx2 + fy2 + fz2）），计算波束方向和波束方向的频率， （fx，fy，fz）表示从多个不同时间相位的局部超声波回波数据计算出的第一光谱矩的情况下的频率（fx2 + fy2 + fz2）1/2， ; 并且计算在多个不同时间相位之间生成的感兴趣位置处的波束方向上的位移分量。

公开(公告)号：US20120278005A1

公开(公告)日：2012-11-01

申请号：US13532779

申请日：2012-06-25

申请人： Chikayoshi SUMI

发明人： Chikayoshi SUMI

IPC分类号： G06F19/00

CPC分类号： A61B8/08 ,  A61B5/0051 ,  A61B5/0053 ,  A61B5/015 ,  A61B5/7239 ,  A61B8/485 ,  G01S7/52042 ,  G01S7/52095 ,  G01S15/582 ,  G01S15/8906 ,  G01S15/8984

摘要： The present invention provides elastic constant and visco elastic constant measurement apparatus etc. for measuring in the ROI in living tissues elastic constants such as shear modulus, Poisson's ratio, Lame constants, etc., visco elastic constants such as visco shear modulus, visco Poisson's ratio, visco Lame constants, etc. and density even if there exist another mechanical sources and uncontrollable mechanical sources in the object. The elastic constant and visco elastic constant measurement apparatus is equipped with means of data storing 2 (storage of deformation data measured in the ROI 7 etc.) and means of calculating elastic and visco elastic constants 1 (calculator of shear modulus etc. at arbitrary point in the ROI from measured strain tensor data etc.), the means of calculating elastic and visco elastic constants numerically determines elastic constants etc. from the first order partial differential equations relating elastic constants etc. and strain tensor etc.

摘要翻译： 本发明提供弹性常数和粘弹性常数测量装置等，用于在生物组织的ROI中测量弹性常数如剪切模量，泊松比，拉姆常数等，粘弹性常数如粘度剪切模量，粘度泊松比 ，粘度Lame常数等，即使在物体中存在另一种机械源和不可控制的机械源，密度也是如此。 弹性常数和粘弹性常数测量装置配备有数据存储装置2（存储在ROI 7等中测量的变形数据），以及计算弹性和粘弹性常数1（任意点处的剪切模量计算器） 在来自测量应变张量数据的ROI中），计算弹性和粘弹性常数的方法从弹性常数等与应变张量等的一阶偏微分方程数值地确定弹性常数等。

公开(公告)号：US20080048911A1

公开(公告)日：2008-02-28

申请号：US11827359

申请日：2007-07-11

申请人： Chikayoshi Sumi

发明人： Chikayoshi Sumi

IPC分类号： H01Q3/00

CPC分类号： H01Q3/46

摘要： A beamforming apparatus obtains the beamforming parameters that realize arbitrary desirable PSF by using optimization theories. The apparatus uses at least one of the beamforming parameters such as the intensities, frequencies, bandwidths and shapes of the signals transmitted by the transmitting unit, the filtering of noises, amplifications (gains) and shapes of the signals received by the receiving unit, delays of the directions of propagation and array used by the delay units, apodization functions of the directions of propagation and array used by the apodization units, the number of the additions of the signals by the addition unit, array element parameters such as element size or shape and how to implement the elements in transducers (e.g., connections by leads between the elements and with the surroundings), which are determined by the specified optimization process to realize the desirable PSF.

摘要翻译： 波束形成装置通过使用优化理论获得实现任意期望的PSF的波束成形参数。 该装置使用波束形成参数中的至少一个，例如由发射单元发射的信号的强度，频率，带宽和形状，噪声的滤波，放大（增益）和由接收单元接收的信号的形状延迟 由延迟单元使用的传播方向和阵列的方向，由变迹单元使用的传播方向和阵列的变迹函数，加法单元添加信号的数量，诸如元件尺寸或形状的数组元素参数 以及如何通过指定的优化过程来确定换能器中的元件（例如由元件之间的引线与周围的连接），以实现所需的PSF。