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11. 发明申请

US20050033173A1 Extended volume ultrasound data acquisition 有权
标题翻译：扩展体积超声数据采集
公开(公告)号：US20050033173A1
公开(公告)日：2005-02-10
申请号：US10635193
申请日：2003-08-05
申请人： Patrick Von Behren , Jian-Feng Chen
发明人： Patrick Von Behren , Jian-Feng Chen
IPC分类号： A61B8/00
CPC分类号： G01S7/52065 , A61B8/00 , A61B8/4254 , A61B8/483 , G01S15/66 , G01S15/8993 , Y10S128/916
摘要： Three or four-dimensional ultrasound data acquisition for extended field of view imaging is provided. Multiple volumes are registered with respect to each other and spliced together to form an extended volume. The extended volume is a contiguous volume larger than a volumetric region that a multi-dimensional or wobbler transducer array is capable of imaging without movement. Information representing different volumes is registered with respect to each other by sensing the transducer position associated with each of the different volumes. The position is sensed using a position sensing mechanism, such as magnetic optical or gyroscope measurements. Acoustic data may be used to determine decorrelation of speckle or correlation of features to sense position. After the volumes are registered, any overlapping regions are compounded. The resulting extended field of view volume is displayed and manipulated for viewing by the user. A large volume or extended volume of the patient is used for assessing an organ, such as an entire fetus in OB applications.
摘要翻译：提供用于扩展视野成像的三维或四维超声数据采集。将多个卷相对于彼此登记并拼接在一起以形成扩展卷。扩展体积是大于容积区域的连续体积，多维或摇摆换能器阵列能够在无移动的情况下成像。通过感测与每个不同体积相关联的换能器位置，相对于彼此登记表示不同体积的信息。使用诸如磁光学或陀螺仪测量的位置感测机构感测位置。声学数据可用于确定斑点的去相关或特征的相关性以感测位置。卷注册后，任何重叠区域都会复合。显示和操作所产生的扩展视野音量以供用户查看。大量或扩大体积的患者用于评估器官，例如OB应用中的整个胎儿。

12. 发明授权

US06558324B1 System and method for strain image display 有权
标题翻译：应变图像显示系统和方法
公开(公告)号：US06558324B1
公开(公告)日：2003-05-06
申请号：US09994589
申请日：2001-11-20
申请人： Patrick L. Von Behren , Dong-Cyuan Liu , Jian-Feng Chen
发明人： Patrick L. Von Behren , Dong-Cyuan Liu , Jian-Feng Chen
IPC分类号： A61B800
CPC分类号： A61B8/485 , A61B8/08 , A61B8/0825 , A61B8/463 , A61B8/5276 , G01S7/52034 , G01S7/52042 , G01S7/52069 , G01S7/52071 , G01S7/52074 , G01S15/8993
摘要： A region of interest (ROI) of a patient's body is repeatedly scanned using an ultrasound transducer array. Data sets representing an image property, such as intensity, from portions of the ROI are used to calculate a representation of the displacement profile within the ROI at different stress levels. From the displacement profile, a function of strain is also preferably calculated. According to one aspect of the invention, a data set representing an estimate of the elasticity profile within the ROI is color-coded and is displayed along with a B-mode display in a single, overlaid display. According to another aspect of the preferred embodiment of the invention, the display of elasticity is adaptively persisted as a function of, for example, a measure of image quality. The invention also provides an on-screen guide that indicates to a user a measure of quality of each of a series of estimated displacement data sets.
摘要翻译：使用超声波换能器阵列重复扫描患者身体的感兴趣区域（ROI）。使用表示来自ROI部分的图像属性（例如强度）的数据集来计算在不同应力水平下ROI内的位移曲线的表示。从位移分布中，也优选计算应变的函数。根据本发明的一个方面，表示ROI内的弹性分布的估计的数据集是彩色编码的，并且在单个重叠显示中与B模式显示一起显示。根据本发明的优选实施例的另一方面，作为例如图像质量的度量的函数，弹性显示被自适应地持续。本发明还提供一种屏幕指南，其向用户指示一系列估计位移数据集中的每一个的质量的量度。

13. 发明授权

US06468218B1 3-D ultrasound imaging system and method 有权
标题翻译： 3-D超声成像系统及方法
公开(公告)号：US06468218B1
公开(公告)日：2002-10-22
申请号：US09944865
申请日：2001-08-31
申请人： Jian-Feng Chen , Dong-Chyuan Liu
发明人： Jian-Feng Chen , Dong-Chyuan Liu
IPC分类号： A61B800
CPC分类号： A61B6/469 , A61B8/06 , A61B8/13 , A61B8/469 , A61B8/483 , A61B8/54 , G01S7/52026 , G01S15/8993 , Y10S128/916
摘要： A 3-D region of interest (ROI) of a body is imaged, preferably using an ultrasound transducer. The intensity of an echo signal from each of a pattern of pixels within the ROI is measured and stored. The pixels are then grouped into pixel blocks, and the intensity values for the pixels in each sequentially selected current block are compiled in a current histogram. Each current histogram is compared with a reference histogram that corresponds to the distribution of echo signal intensities in a known region of speckle. A structure likelihood value is then computed based on the comparison, where the structure likelihood value indicates how likely it is that the current block corresponds to a structure of interest as opposed to noise. The intensity value for any pixel likely to be noise is preferably scaled down. The scaled intensity values are then projected, preferably using a maximum intensity projection, onto a 2-D display plane, a representation of which is then displayed for a user to see. The invention is able to image structures throughout the 3-D ROI even when they would otherwise be obscured by the speckle.
摘要翻译：优选使用超声波换能器对身体的3-D感兴趣区域（ROI）进行成像。测量并存储ROI内的像素图案中的每一个的回波信号的强度。然后将像素分组为像素块，并且在当前直方图中编译每个顺序选择的当前块中的像素的强度值。将每个当前直方图与对应于已知斑点区域中的回波信号强度的分布的参考直方图进行比较。然后基于比较来计算结构似然值，其中结构似然值指示当前块对应于与噪声相关的兴趣结构的可能性。可能是噪声的任何像素的强度值优选地按比例缩小。然后将缩放的强度值优选地使用最大强度投影投影到2-D显示平面上，然后显示其表示以供用户看到。本发明能够对整个3-D ROI的结构进行成像，即使它们否则会被斑点遮蔽。

14. 发明授权

US5638820A Ultrasound system for estimating the speed of sound in body tissue 失效
标题翻译：用于估计身体组织中声音速度的超声系统
公开(公告)号：US5638820A
公开(公告)日：1997-06-17
申请号：US674652
申请日：1996-06-25
申请人： Jian-Feng Chen , Lin-Xin Yao , Patrick L. Von Behren
发明人： Jian-Feng Chen , Lin-Xin Yao , Patrick L. Von Behren
IPC分类号： G01H5/00 , G01N29/07 , G01N29/44 , G01N29/50 , G01S7/52 , A61B8/00
CPC分类号： G01N29/4427 , G01H5/00 , G01N29/07 , G01N29/50 , G01S7/52049 , G01N2291/011 , G01N2291/02475 , G01S7/5205 , G01S7/52071
摘要： An ultrasound system (50) estimates the speed of sound in the tissue (60) under examination. The ultrasound system obtains a series of test images (150) using different estimates of the speed of sound in the body tissue. For each image produced, the ultrasound system computes a function that is indicative of image quality for one or more regions of interest (152) in the test image. The image quality function exhibits a minimum or maximum when computed for a region of interest obtained at a speed of sound substantially equal to a true speed of sound in the tissue. The ultrasound system selects the test image having the minimum or maximum function value and obtains subsequent images of the tissue using the speed of sound used to obtain the test image selected.
摘要翻译：超声系统（50）估计检查中的组织（60）中的声音速度。超声系统使用不同的身体组织中声速的估计来获得一系列测试图像（150）。对于所产生的每个图像，超声系统计算在测试图像中指示一个或多个感兴趣区域（152）的图像质量的函数。当以基本上等于组织中的真实速度的声音的速度获得的感兴趣区域计算时，图像质量函数表现出最小或最大值。超声系统选择具有最小或最大功能值的测试图像，并使用用于获得所选择的测试图像的声速来获得组织的后续图像。

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