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公开(公告)号：US08398550B2
公开(公告)日：2013-03-19
申请号：US12592717
申请日：2009-12-01
IPC分类号： A61B8/00
CPC分类号： G01S7/52036 , A61B8/0825 , A61B8/485 , A61B8/488 , G01S7/52022 , G01S7/52042
摘要： A system includes an acoustic radiation force source that is structured to generate an acoustic radiation force at one or more frequencies. A shear wave transmission device is embedded in a mass including a biologic material. The shear wave transmission device is responsive to the acoustic radiation force source to transmit shear waves through the biologic material. A Doppler ultrasonic device detects the shear waves and generates data representative of the shear waves. A processing device determines one or more mechanical properties of the biologic material from the data.
摘要翻译： 一种系统包括声辐射力源，其被构造成在一个或多个频率处产生声辐射力。 剪切波传输装置嵌入包括生物材料的质量。 剪切波传输装置响应于声辐射力源以将剪切波传播通过生物材料。 多普勒超声波装置检测剪切波并产生代表剪切波的数据。 处理装置根据数据确定生物材料的一个或多个机械特性。
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公开(公告)号：US4817015A
公开(公告)日：1989-03-28
申请号：US798930
申请日：1985-11-18
CPC分类号： G01S7/52036 , A61B8/00 , A61B8/463 , G01N2291/02475 , G01N2291/0289 , G01N2291/0428
摘要： Tissue signatures are obtained from first and second order statistics of an image texture to discriminate between different normal tissues and to detect abnormal conditions. These signatures describe intrinsic backscatter properties of the tissue imaged, and are used as the basis of an automatic tissue characterization algorithm. A device for on-line classifying of the texture of an image measures a total of four first and second order statistical properties of echo signals of a region of interest (ROI) selected by an operator, the echo signals being contained in an image memory. These can be used to obtain the tissue signatures, to detect low contrast lesions by machine, and to produce parametric images.
摘要翻译： 从图像纹理的一阶和二阶统计得到组织特征，以区分不同的正常组织，并检测异常状况。 这些标记描述了成像的组织的内在的后向散射特性，并被用作自动组织表征算法的基础。 用于对图像的纹理进行在线分类的装置测量由操作者选择的感兴趣区域（ROI）的回波信号的总共四个一阶和二阶统计特性，回波信号包含在图像存储器中。 这些可用于获得组织特征，通过机器检测低对比度损伤，并产生参数图像。
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公开(公告)号：US08292814B2
公开(公告)日：2012-10-23
申请号：US12592717
申请日：2009-12-01
IPC分类号： A61B8/00
摘要： A system includes an acoustic radiation force source that is structured to generate an acoustic radiation force at one or more frequencies. A shear wave transmission device is embedded in a mass including a biologic material. The shear wave transmission device is responsive to the acoustic radiation force source to transmit shear waves through the biologic material. A Doppler ultrasonic device detects the shear waves and generates data representative of the shear waves. A processing device determines one or more mechanical properties of the biologic material from the data.
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公开(公告)号：US06277074B1
公开(公告)日：2001-08-21
申请号：US09410574
申请日：1999-10-01
IPC分类号： A61B800
CPC分类号： A61B8/485 , A61B5/0053 , A61B8/0833
摘要： A method for motion estimation within biological tissue is disclosed. The method involves acoustically coupling a transducer to a target biological tissue, which transducer emits an ultrasonic signal and collects the energy back-scattered by the target issue. A first set of energy data is collected and stored, then target tissue is axially compressed and a second set of ultrasonic energy data is collected and stored. One of the first and second data sets is warped to account for the anticipated compression forming a warped data set. This warped data set is cross-correlated with the unwarped one of the first and said second data sets to obtain a fine scale displacement of said target biological tissue from the displacement estimated by the warping. This fine scale displacement is summed with the warped data set to obtain a total axial displacement. A gradient of the total axial displacement is taken and used to form a strain image. An apparatus for practicing this method is also disclosed.
摘要翻译： 公开了一种生物组织内的运动估计方法。 该方法涉及将换能器声耦合到目标生物组织，该换能器发射超声波信号并收集由目标问题反向散射的能量。 收集并存储第一组能量数据，然后轴向压缩目标组织，收集并存储第二组超声波能量数据。 第一和第二数据集中的一个被扭曲以考虑形成翘曲数据集的预期压缩。 该扭曲数据集与第一和第二数据组中的未被预测的数据集相互关联，以便从由翘曲估计的位移中获得所述目标生物组织的精细尺度位移。 该精细比例位移与翘曲数据集相加以获得总轴向位移。 采取总轴向位移的梯度并用于形成应变图像。 还公开了一种用于实施该方法的装置。
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公开(公告)号：US4982339A
公开(公告)日：1991-01-01
申请号：US298022
申请日：1989-01-18
CPC分类号： A61B8/463 , A61B8/00 , G01S7/52036 , G01N2291/02475 , G01N2291/0428
摘要： Tissue signatures are obtained from first and second order statistics of an image texture to discriminate between different normal tissues and to detect abnormal conditions. These signatures described intrinsic backscatter properties of the tissue imaged and are used as the basis of an automatic tissue characterization algorithm. A device for on-line classifying of the texture of an image measures a total of four first and second order statistical properties of echo signals of a region of interest (ROI) selected by an operator, the echo signals being contained in an image memory. These can be used to obtain the tissue signatures, to detect low contrast lesions by machine, and to produce parametric images.
摘要翻译： 从图像纹理的一阶和二阶统计得到组织特征，以区分不同的正常组织，并检测异常状况。 这些标记描述了成像的组织的内在的后向散射特性，并被用作自动组织表征算法的基础。 用于对图像的纹理进行在线分类的装置测量由操作者选择的感兴趣区域（ROI）的回波信号的总共四个一阶和二阶统计特性，回波信号包含在图像存储器中。 这些可用于获得组织特征，通过机器检测低对比度损伤，并产生参数图像。
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公开(公告)号：US20100191110A1
公开(公告)日：2010-07-29
申请号：US12592717
申请日：2009-12-01
IPC分类号： A61B8/00
CPC分类号： G01S7/52036 , A61B8/0825 , A61B8/485 , A61B8/488 , G01S7/52022 , G01S7/52042
摘要： A system includes an acoustic radiation force source that is structured to generate an acoustic radiation force at one or more frequencies. A shear wave transmission device is embedded in a mass including a biologic material. The shear wave transmission device is responsive to the acoustic radiation force source to transmit shear waves through the biologic material. A Doppler ultrasonic device detects the shear waves and generates data representative of the shear waves. A processing device determines one or more mechanical properties of the biologic material from the data.
摘要翻译： 一种系统包括声辐射力源，其被构造成在一个或多个频率处产生声辐射力。 剪切波传输装置嵌入包括生物材料的质量。 剪切波传输装置响应于声辐射力源以将剪切波传播通过生物材料。 多普勒超声波装置检测剪切波并产生代表剪切波的数据。 处理装置根据数据确定生物材料的一个或多个机械特性。
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