公开(公告)号：US20120165670A1

公开(公告)日：2012-06-28

申请号：US13393998

申请日：2010-08-25

申请人： William Tao Shi ,  Francois Guy Gerard Marie Vignon ,  Jeffry Earl Powers ,  Brent Stephen Robinson ,  Michael Richard Burcher ,  Vijay Shamdasani

发明人： William Tao Shi ,  Francois Guy Gerard Marie Vignon ,  Jeffry Earl Powers ,  Brent Stephen Robinson ,  Michael Richard Burcher ,  Vijay Shamdasani

IPC分类号： A61B8/13

CPC分类号： A61B8/13 ,  A61B5/6814 ,  A61B8/0808 ,  A61B8/4236 ,  A61B8/4483 ,  A61B8/481 ,  A61B2017/00725 ,  A61B2090/378 ,  A61N7/00 ,  G01S7/52049 ,  G01S15/8913 ,  G01S15/8925

摘要： Ultrasound aberration, especially in transcranial imaging or therapy, is corrected by capturing the laterally two-dimensional nature of the aberration in the ultrasound being received, as by means of a two-dimensional receiving transducer array (104, 108). In some embodiments, transmissive ultrasound (164) is applied through the temporal window and is, for example, emitted from one or more real or virtual point sources (160) at a time, each point source being a single transducer element or patch or the geometrical focus of a collection of elements or patches. A patch may serve, in one aspect as a small focused transducer in the near field. A contralateral array (104, 108) is, in one version, comprised of the point sources. In some aspects, aberration maps structured, independent-variable-wise, to correspond to the array structure of the receiving transducer embody aberration estimates, the ultrasound device being configured for improving ultrasound operation by modifying device settings to improve the location of ultrasound reception/transmission or correct beamforming. Enhancements include beam placement visualization, and intensity and beam shape prediction.

摘要翻译： 通过二维接收换能器阵列（104,108），通过捕获正在接收的超声中的像差的横向二维特性来校正超声像差，特别是经颅成像或治疗。 在一些实施例中，透射超声（164）通过时间窗口被施加，并且例如一次从一个或多个实际或虚拟点源（160）发射，每个点源是单个换能器元件或贴片 元素或补丁集合的几何焦点。 在一个方面，补片可以在近场中用作小型聚焦换能器。 在一个版本中，对侧阵列（104,108）由点源组成。 在一些方面，结构化，独立变量地对应于接收换能器的阵列结构的像差贴图体现了像差估计，超声装置被配置为通过修改装置设置来改善超声波操作来改善超声波接收/发射的位置 或正确的波束成形。 增强功能包括光束放置可视化，强度和光束形状预测。

公开(公告)号：US20110254842A1

公开(公告)日：2011-10-20

申请号：US13141784

申请日：2009-12-07

申请人： Julia Dmitrieva ,  Jayne Louise Angela Armfield ,  Junzhen Man ,  Jeffry Earl Powers ,  Michael R. Voin

发明人： Julia Dmitrieva ,  Jayne Louise Angela Armfield ,  Junzhen Man ,  Jeffry Earl Powers ,  Michael R. Voin

IPC分类号： G06T17/00 ,  G06K9/00

CPC分类号： A61B8/469 ,  A61B8/4472 ,  A61B8/481 ,  A61B8/483

摘要： A system (100) and method (400) of acoustic imaging receives an acoustic signal that is scanned to interrogate a target volume within a subject (430), processes the received acoustic signal to produce three-dimensional acoustic image data for a region of interest within the target volume (450); and quantifies the contrast of the three-dimensional acoustic image data in the region of interest at a sampling time that is offset by a selected time period with respect to a time when a contrast enhancement medium is introduced into the subject's circulatory system (480). In one embodiment, quantification is performed by setting an intensity threshold (410), and determining a percentage of voxels of the three-dimensional acoustic image data for the region of interest which have an intensity value greater than the intensity threshold (470).

摘要翻译： 声学成像的系统（100）和方法（400）接收被扫描以询问对象内的目标音量的声信号（430），处理所接收的声信号以产生感兴趣区域的三维声像数据 在目标体积内（450）; 并且在相对于将对比度增强介质引入到对象的循环系统中的时间（480）的相对于所选择的时间段偏移的采样时间量化在感兴趣区域中的三维声像图像数据的对比度。 在一个实施例中，通过设置强度阈值（410）和确定具有大于强度阈值（470）的强度值的感兴趣区域的三维声像图像数据的体素的百分比来执行量化。