公开(公告)号：US20110306885A1

公开(公告)日：2011-12-15

申请号：US13215966

申请日：2011-08-23

申请人： Donald F. Specht

发明人： Donald F. Specht

IPC分类号： A61B8/14

CPC分类号： A61B8/145 ,  A61B5/725 ,  A61B8/08 ,  A61B8/085 ,  A61B8/42 ,  A61B8/4209 ,  A61B8/4218 ,  A61B8/4245 ,  A61B8/4281 ,  A61B8/4455 ,  A61B8/4483 ,  A61B8/4494 ,  A61B8/483 ,  A61B8/5207 ,  A61B8/5253 ,  A61B8/543 ,  G01S7/52046 ,  G01S7/5205 ,  G01S15/8977

摘要： A combination of an ultrasonic scanner and an omnidirectional receive transducer for producing a two-dimensional image from the echoes received by the single omnidirectional transducer is described. Two-dimensional images with different noise components can be constructed from the echoes received by additional transducers. These can be combined to produce images with better signal to noise ratios and lateral resolution. Also disclosed is a method based on information content to compensate for the different delays for different paths through intervening tissue is described. Specular reflections are attenuated by using even a single omnidirectional receiver displaced from the insonifying probe. The disclosed techniques have broad application in medical imaging but are ideally suited to multi-aperture cardiac imaging using two or more intercostal spaces. Since lateral resolution is determined primarily by the aperture defined by the end elements, it is not necessary to fill the entire aperture with equally spaced elements. In fact, gaps can be left to accommodate spanning a patient's ribs, or simply to reduce the cost of the large aperture array. Multiple slices using these methods can be combined to form three-dimensional images.

摘要翻译： 描述了由单个全向换能器接收的回波产生二维图像的超声波扫描器和全向接收换能器的组合。 可以从附加传感器接收到的回波构建具有不同噪声分量的二维图像。 这些可以组合以产生具有更好的信噪比和横向分辨率的图像。 还公开了一种基于信息内容的方法，用于补偿通过中间组织的不同路径的不同延迟。 通过使用从失真探头移位的单个全向接收器来衰减镜面反射。 所公开的技术在医学成像中具有广泛的应用，但是理想地适用于使用两个或多个肋间空间的多孔心脏成像。 由于侧向分辨率主要由端部元件限定的孔确定，所以不必用均匀间隔的元件填充整个孔。 事实上，间隙可以适应跨越患者的肋骨，或者简单地降低大孔径阵列的成本。 可以组合使用这些方法的多个片段来形成三维图像。

公开(公告)号：US4598369A

公开(公告)日：1986-07-01

申请号：US490457

申请日：1983-05-02

申请人： Shih-Ping Wang ,  Russell H. Morgan ,  Donald F. Specht

发明人： Shih-Ping Wang ,  Russell H. Morgan ,  Donald F. Specht

IPC分类号： G01N23/04 ,  G06T11/00 ,  G06F15/42 ,  G03B42/02 ,  H04N5/32 ,  H05G1/60

CPC分类号： G06T11/006 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612

摘要： Tomographic images are obtained at a plane of interest by taking a series of x-ray exposures, producing a series of multiple images therefrom, arranging these multiple images so that points residing within a desired plane of interest are coincident to form a first order clarified image, repeating the step for a predetermined number of other planes which are parallel to the first plane of interest, to produce a first order clarified image for each of these planes, and then producing a smeared image for each of such planes, except one, by replicating the first order image for said plane a predetermined number of times and shifting each of the replicated images in the plane as a function of the distance between that particular plane and the x-ray source, the distance between that particular plane and the x-ray image device, the same distances but taken relative to a plane of interest, and the distance moved between exposures by the x-ray source. This smeared image for each particular plane is then multiplied by a coefficient and subtracted from the first order image of the plane of interest to form a second order clarified image of the plane of interest.

摘要翻译： 通过进行一系列x射线曝光，从其产生一系列多个图像，排列这些多个图像，使位于期望的感兴趣平面内的点一致以形成一阶澄清图像，在感兴趣的平面上获得层析图像 对于平行于所述第一感兴趣平面的预定数量的其它平面重复所述步骤，以产生用于这些平面中的每一个的一阶澄清图像，然后除了一个之外，通过 将所述平面的一阶图像复制预定次数，并且根据该特定平面和x射线源之间的距离将平面中的复制图像中的每一个移动，该特定平面与x射线源之间的距离， 射线图像装置，相对于感兴趣的平面相同的距离，并且由X射线源在曝光之间移动的距离。 然后将每个特定平面的该模糊图像乘以系数并从感兴趣平面的一阶图像中减去以形成感兴趣平面的二阶澄清图像。

公开(公告)号：US08277383B2

公开(公告)日：2012-10-02

申请号：US13215966

申请日：2011-08-23

申请人： Donald F. Specht

发明人： Donald F. Specht

IPC分类号： A61B8/14

CPC分类号： A61B8/145 ,  A61B5/725 ,  A61B8/08 ,  A61B8/085 ,  A61B8/42 ,  A61B8/4209 ,  A61B8/4218 ,  A61B8/4245 ,  A61B8/4281 ,  A61B8/4455 ,  A61B8/4483 ,  A61B8/4494 ,  A61B8/483 ,  A61B8/5207 ,  A61B8/5253 ,  A61B8/543 ,  G01S7/52046 ,  G01S7/5205 ,  G01S15/8977

摘要： A combination of an ultrasonic scanner and an omnidirectional receive transducer for producing a two-dimensional image from the echoes received by the single omnidirectional transducer is described. Two-dimensional images with different noise components can be constructed from the echoes received by additional transducers. These can be combined to produce images with better signal to noise ratios and lateral resolution. Also disclosed is a method based on information content to compensate for the different delays for different paths through intervening tissue is described. Specular reflections are attenuated by using even a single omnidirectional receiver displaced from the insonifying probe. The disclosed techniques have broad application in medical imaging but are ideally suited to multi-aperture cardiac imaging using two or more intercostal spaces. Since lateral resolution is determined primarily by the aperture defined by the end elements, it is not necessary to fill the entire aperture with equally spaced elements. In fact, gaps can be left to accommodate spanning a patient's ribs, or simply to reduce the cost of the large aperture array. Multiple slices using these methods can be combined to form three-dimensional images.

摘要翻译： 描述了由单个全向换能器接收的回波产生二维图像的超声波扫描器和全向接收换能器的组合。 可以从附加传感器接收到的回波构建具有不同噪声分量的二维图像。 这些可以组合以产生具有更好的信噪比和横向分辨率的图像。 还公开了一种基于信息内容的方法，用于补偿通过中间组织的不同路径的不同延迟。 通过使用从失真探头移位的单个全向接收器来衰减镜面反射。 所公开的技术在医学成像中具有广泛的应用，但是理想地适用于使用两个或多个肋间空间的多孔心脏成像。 由于侧向分辨率主要由端部元件限定的孔确定，所以不必用均匀间隔的元件填充整个孔。 事实上，间隙可以适应跨越患者的肋骨，或者简单地降低大孔径阵列的成本。 可以组合使用这些方法的多个片段来形成三维图像。

公开(公告)号：US20070238999A1

公开(公告)日：2007-10-11

申请号：US11532013

申请日：2006-09-14

申请人： Donald F. Specht

发明人： Donald F. Specht

IPC分类号： A61B8/00

CPC分类号： G06T7/0012 ,  A61B5/02007 ,  A61B5/7257 ,  A61B5/7264 ,  A61B8/06 ,  A61B8/08 ,  A61B8/0883 ,  A61B8/0891 ,  A61B8/4254 ,  A61B8/483 ,  A61B8/543 ,  G06T2207/10136 ,  G06T2207/20092 ,  G06T2207/30048 ,  G06T2207/30101

摘要： A non-invasive screening technique for visualizing coronary arteries which overcomes the problems of visualizing the curved arteries by projecting the three dimensional volume of the arteries onto a two dimensional screen. Blood filled areas, and in particular, the coronary arteries and veins, are highlighted to contrast them with other nearby tissues using non-linear classification and segmentation techniques. Data is gathered as a sequence of 2D slices stored as a 3D volume. Software is employed to interpolate voxels intermediate to the slices. Wiener filtering or LMS spatial filtering can be implemented on each 2D scan to improve lateral resolution and reduce noise prior to the use of the scan data with the classification and segmentation algorithms. A traditional handheld ultrasound probe is employed to enable the technician to locate the area of interest, but a gyroscopic stabilizer is added to minimize unwanted variation on two axes of rotation while scanning through angles on the third axis of rotation.

摘要翻译： 一种用于可视化冠状动脉的非侵入性筛查技术，其通过将三维体积的动脉投影到二维屏幕上来克服可视化弯曲动脉的问题。 突出显示血液填充区域，特别是冠状动脉和静脉，使用非线性分类和分割技术将其与其他附近组织进行对比。 数据被收集为作为3D体积存储的2D片段的序列。 使用软件来插入片段中间的体素。 维纳滤波或LMS空间滤波可以在每个2D扫描上实现，以便在使用分类和分割算法的扫描数据之前提高横向分辨率并降低噪点。 采用传统的手持式超声波探头来使技术人员能够定位感兴趣的区域，但是增加一个陀螺稳定器以最小化两个旋转轴上的不必要的变化，同时扫描第三个旋转轴上的角度。

公开(公告)号：US4271842A

公开(公告)日：1981-06-09

申请号：US883171

申请日：1978-03-03

申请人： Donald F. Specht ,  Paul R. Goldberg

发明人： Donald F. Specht ,  Paul R. Goldberg

IPC分类号： A61B5/0456 ,  G01S15/89 ,  G06T11/00 ,  A61B10/00

CPC分类号： G01S15/899 ,  A61B5/0456

摘要： The apparatus includes an input controller connected to receive input data representing ultrasonic sector images of a patient for digitizing selected ones of the images thereby representing those images in a digital format. A front panel interface is provided for specifying the selected ones of the sector images to be digitized. Storage means are provided for storing the digitized data and processor means are provided for controlling the digitizing and storing of the input sector data and for enhancing the digital images. Display means are provided for displaying the enhanced sector images.

摘要翻译： 该装置包括输入控制器，其连接用于接收表示患者的超声波扇区图像的输入数据，用于数字化所选择的一个图像，从而以数字格式表示那些图像。 提供了用于指定要被数字化的所选择的扇区图像的前面板接口。 被提供用于存储数字化数据的存储装置，并且提供处理器装置用于控制输入扇区数据的数字化和存储以及用于增强数字图像。 提供显示装置用于显示增强的扇区图像。

公开(公告)号：US4241611A

公开(公告)日：1980-12-30

申请号：US16782

申请日：1979-03-02

申请人： Donald F. Specht ,  Julian Dow

发明人： Donald F. Specht ,  Julian Dow

IPC分类号： B06B1/06 ,  G01N29/22 ,  G01S15/89 ,  G01N29/00

CPC分类号： G01S15/8922 ,  B06B1/0625 ,  G01N29/221

摘要： An ultrasonic transducer assembly and system including a disc-shaped transducer element surrounded by ring-shaped transducer elements of different width to permit dynamic focusing and minimum phase cancellation. The elements are switched so that the output signals for various depths have a small dynamic range whereby the dynamic range of associated amplifiers is significantly reduced.

摘要翻译： 一种超声换能器组件和系统，包括由不同宽度的环形换能器元件包围的盘形换能器元件，以允许动态聚焦和最小相位消除。 这些元件被切换，使得用于各种深度的输出信号具有较小的动态范围，由此相关联的放大器的动态范围显着降低。

公开(公告)号：US20140135626A1

公开(公告)日：2014-05-15

申请号：US14157257

申请日：2014-01-16

申请人： Donald F. Specht

发明人： Donald F. Specht

IPC分类号： A61B8/08 ,  A61B5/00 ,  A61B8/00 ,  A61B8/14

CPC分类号： A61B8/145 ,  A61B5/725 ,  A61B8/08 ,  A61B8/085 ,  A61B8/42 ,  A61B8/4209 ,  A61B8/4218 ,  A61B8/4245 ,  A61B8/4281 ,  A61B8/4455 ,  A61B8/4483 ,  A61B8/4494 ,  A61B8/483 ,  A61B8/5207 ,  A61B8/5253 ,  A61B8/543 ,  G01S7/52046 ,  G01S7/5205 ,  G01S15/8977

摘要： A combination of an ultrasonic scanner and an omnidirectional receive transducer for producing a two-dimensional image from received echoes is described. Two-dimensional images with different noise components can be constructed from the echoes received by additional transducers. These can be combined to produce images with better signal to noise ratios and lateral resolution. Also disclosed is a method based on information content to compensate for the different delays for different paths through intervening tissue is described. The disclosed techniques have broad application in medical imaging but are ideally suited to multi-aperture cardiac imaging using two or more intercostal spaces. Since lateral resolution is determined primarily by the aperture defined by the end elements, it is not necessary to fill the entire aperture with equally spaced elements. Multiple slices using these methods can be combined to form three-dimensional images.

摘要翻译： 描述了超声波扫描器和用于从接收到的回波产生二维图像的全向接收换能器的组合。 可以从附加传感器接收到的回波构建具有不同噪声分量的二维图像。 这些可以组合以产生具有更好的信噪比和横向分辨率的图像。 还公开了一种基于信息内容的方法，用于补偿通过中间组织的不同路径的不同延迟。 所公开的技术在医学成像中具有广泛的应用，但是理想地适用于使用两个或多个肋间空间的多孔心脏成像。 由于侧向分辨率主要由端部元件限定的孔确定，所以不必用均匀间隔的元件填充整个孔。 可以组合使用这些方法的多个片段来形成三维图像。

公开(公告)号：US20130035595A1

公开(公告)日：2013-02-07

申请号：US13632929

申请日：2012-10-01

申请人： Donald F. Specht

发明人： Donald F. Specht

IPC分类号： A61B8/14

CPC分类号： A61B8/145 ,  A61B5/725 ,  A61B8/08 ,  A61B8/085 ,  A61B8/42 ,  A61B8/4209 ,  A61B8/4218 ,  A61B8/4245 ,  A61B8/4281 ,  A61B8/4455 ,  A61B8/4483 ,  A61B8/4494 ,  A61B8/483 ,  A61B8/5207 ,  A61B8/5253 ,  A61B8/543 ,  G01S7/52046 ,  G01S7/5205 ,  G01S15/8977

摘要： A combination of an ultrasonic scanner and an omnidirectional receive transducer for producing a two-dimensional image from received echoes is described. Two-dimensional images with different noise components can be constructed from the echoes received by additional transducers. These can be combined to produce images with better signal to noise ratios and lateral resolution. Also disclosed is a method based on information content to compensate for the different delays for different paths through intervening tissue is described. The disclosed techniques have broad application in medical imaging but are ideally suited to multi-aperture cardiac imaging using two or more intercostal spaces. Since lateral resolution is determined primarily by the aperture defined by the end elements, it is not necessary to fill the entire aperture with equally spaced elements. Multiple slices using these methods can be combined to form three-dimensional images.

摘要翻译： 描述了超声波扫描器和用于从接收到的回波产生二维图像的全向接收换能器的组合。 可以从附加传感器接收到的回波构建具有不同噪声分量的二维图像。 这些可以组合以产生具有更好的信噪比和横向分辨率的图像。 还公开了一种基于信息内容的方法，用于补偿通过中间组织的不同路径的不同延迟。 所公开的技术在医学成像中具有广泛的应用，但是理想地适用于使用两个或多个肋间空间的多孔心脏成像。 由于侧向分辨率主要由端部元件限定的孔确定，所以不必用均匀间隔的元件填充整个孔。 可以组合使用这些方法的多个片段来形成三维图像。

公开(公告)号：US20120116226A1

公开(公告)日：2012-05-10

申请号：US13333611

申请日：2011-12-21

申请人： Donald F. Specht

发明人： Donald F. Specht

IPC分类号： A61B8/00

CPC分类号： G06T7/0012 ,  A61B5/02007 ,  A61B5/7257 ,  A61B5/7264 ,  A61B8/06 ,  A61B8/08 ,  A61B8/0883 ,  A61B8/0891 ,  A61B8/4254 ,  A61B8/483 ,  A61B8/543 ,  G06T2207/10136 ,  G06T2207/20092 ,  G06T2207/30048 ,  G06T2207/30101

摘要： A non-invasive screening technique for visualizing coronary arteries which overcomes the problems of visualizing the curved arteries by projecting the three dimensional volume of the arteries onto a two dimensional screen. Blood-filled areas such as the coronary arteries and veins, are highlighted to contrast with other nearby tissues using non-linear classification and segmentation techniques. Data is gathered as a sequence of 2D slices stored as a 3D volume. Software interpolates voxels intermediate to the slices. Wiener filtering or LMS spatial filtering can be implemented on each 2D scan to improve lateral resolution and reduce noise prior to the use of the scan data with the classification and segmentation algorithms. A traditional handheld ultrasound probe is employed to enable the technician to locate the area of interest, but a gyroscopic stabilizer is added to minimize unwanted variation on two axes of rotation.

摘要翻译： 一种用于可视化冠状动脉的非侵入性筛查技术，其通过将三维体积的动脉投影到二维屏幕上来克服可视化弯曲动脉的问题。 使用非线性分类和分割技术突出显示血液填充区域，例如冠状动脉和静脉，与其他附近组织对比。 数据被收集为作为3D体积存储的2D片段的序列。 软件插入片段中间的体素。 维纳滤波或LMS空间滤波可以在每个2D扫描上实现，以便在使用分类和分割算法的扫描数据之前提高横向分辨率并降低噪点。 采用传统的手持式超声波探头来使技术人员能够定位感兴趣的区域，但是添加陀螺稳定器以最小化两个旋转轴上的不必要的变化。

公开(公告)号：US06211971B1

公开(公告)日：2001-04-03

申请号：US09265866

申请日：1999-03-11

申请人： Donald F. Specht

发明人： Donald F. Specht

IPC分类号： G06T500

CPC分类号： G06T5/50 ,  G06T5/009 ,  G06T2207/20084 ,  H04N1/60 ,  H04N1/6058

摘要： A method and apparatus enhance visible contrast within an acquired image for display. The contrast enhancement utilizes all N bands of an original N-band spectral image to produce an M-dimensional enhanced image for display. The method creates an enhanced image from an original image in which the visible contrast in the original image is improved. The original image includes pixels, each pixel having N spectral intensities. The display or printer device which must display the relevant information may be limited to a number of bands M which is smaller than N. Maximum contrast of objects is obtained by emphasizing differences in the N-dimensional pixels by as large differences as possible within the dynamic range of the M-band display space. When M=N=3, this means moving pixels in the display space to utilize the full color palette available on a color monitor or printer. When N>M, a mapping from N space to M space must also be accomplished. In the methods of this patent, the mapping process and the spreading process are accomplished in the same algorithms. Clustering of the raw pixel data is usually used to reduce the computational requirements of the spreading step. Finally, in a creating step, an enhanced image is produced based on the N spectral intensities of each pixel and the N to M mapping developed by the algorithms.

摘要翻译： 一种方法和装置增强了所获取的图像中的可见对比度以供显示。 对比度增强使用原始N波段光谱图像的所有N个波段来产生用于显示的M维增强图像。 该方法从原始图像创建增强图像，其中原始图像中的可见对比度得到改善。 原始图像包括像素，每个像素具有N个光谱强度。 必须显示相关信息的显示器或打印机设备可以被限制为小于N的多个频带M.通过在动态范围内强调N维像素的差异尽可能大的差异来获得对象的最大对比度 范围内的M波段显示空间。 当M = N = 3时，这意味着移动显示空间中的像素以利用彩色监视器或打印机上可用的全彩色调色板。 当N> M时，也必须完成从N空间到M空间的映射。 在该专利的方法中，映射过程和扩展过程在相同的算法中完成。 通常使用原始像素数据的聚类来减少扩展步骤的计算需求。 最后，在创建步骤中，基于每个像素的N个光谱强度和由算法开发的N到M映射产生增强的图像。