公开(公告)号：US09915715B2

公开(公告)日：2018-03-13

申请号：US15061081

申请日：2016-03-04

申请人： Siemens Aktiengesellschaft

发明人： Uvo Hoelscher ,  Dominik Paul

IPC分类号： G01V3/00 ,  G01R33/483 ,  A61B5/055 ,  G01R33/48 ,  G01R33/561 ,  G01R33/54 ,  A61B5/00

CPC分类号： G01R33/483 ,  A61B5/055 ,  A61B5/7257 ,  A61B5/7485 ,  A61B2576/026 ,  G01R33/4822 ,  G01R33/543 ,  G01R33/561

摘要： In a method and apparatus for magnetic resonance imaging of an examination object, a control computer is provided with a designation of a first recording region, which is cuboidal. The computer automatically determines a second recording region that represents an adjustment of the first recording region such that the second recording region is cube-shaped. Magnetic resonance scan data are acquired from the entire second recording region. Magnetic resonance image data are reconstructed from the acquired magnetic resonance scan data. An image region of the magnetic resonance image data is supplied in electronic form from the computer.

公开(公告)号：US09888879B1

公开(公告)日：2018-02-13

申请号：US15666535

申请日：2017-08-01

申请人： ENDRA Life Sciences Inc.

发明人： Jang Hwan Cho ,  Michael M. Thornton

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

CPC分类号： A61B5/4872 ,  A61B5/0035 ,  A61B5/0095 ,  A61B5/4244 ,  A61B5/7246 ,  A61B5/7485 ,  A61B8/0858 ,  A61B8/4416 ,  A61B8/469 ,  A61B8/5223 ,  A61B8/5261

摘要： A method and system for estimating fractional fat content of an object of interest. An energy emitter is used to direct an energy signal with an energy signal electric field strength toward the region of interest, wherein the region of interest has an object of interest, a reference, and a boundary between the object of interest and the reference. Next, a thermoacoustic or ultrasonic transducer is used to receive a thermoacoustic bipolar signal from the boundary, wherein the thermoacoustic bipolar signal is induced by the energy signal. Finally, a machine is used to accept data from the energy emitter and thermoacoustic or ultrasonic transducer, correlate the thermoacoustic bipolar signal to an electric field strength of the reference at the boundary to generate a corrected thermoacoustic bipolar signal at the boundary, and calculate a fat concentration of the object of interest as a function of the corrected thermoacoustic bipolar signal at the boundary.

公开(公告)号：US20180028093A1

公开(公告)日：2018-02-01

申请号：US15680283

申请日：2017-08-18

申请人： St. Jude Medical, Cardiology Division, Inc.

发明人： Wenwen Li ,  Erhan Erdemir ,  Valtino X. Afonso ,  Carlo Pappone ,  Dennis Morgan

IPC分类号： A61B5/053 ,  A61B5/0408 ,  A61B5/0452 ,  A61B5/00 ,  A61B5/042

CPC分类号： A61B5/0536 ,  A61B5/04087 ,  A61B5/0422 ,  A61B5/0452 ,  A61B5/0538 ,  A61B5/7225 ,  A61B5/725 ,  A61B5/743 ,  A61B5/746 ,  A61B5/7485 ,  A61B2505/05

摘要： An electrophysiology map, for example a map of arrhythmic substrate, can be generated by acquiring both geometry information and electrophysiology information pertaining to an anatomical region, and associating the acquired geometry and electrophysiology information as a plurality of electrophysiology data points. A user can select two (or more) electrophysiological characteristics for display, and can further elect to apply various filters to the selected electrophysiological characteristics. The user can also define various relationships (e.g., Boolean ANDS, ORs, and the like) between the selected and/or filtered characteristics. The user-selected filtering criteria can be applied to the electrophysiology data points to output various subsets thereof. These subsets can then be graphically rendered using various combinations of colorscale, monochrome scale, and iconography, for example as a three-dimensional cardiac electrophysiology model.

公开(公告)号：US09841476B2

公开(公告)日：2017-12-12

申请号：US15074250

申请日：2016-03-18

申请人： Siemens Aktiengesellschaft

发明人： Alto Stemmer

IPC分类号： G01R33/3875 ,  A61B5/055 ,  G01R33/565 ,  G01R33/24 ,  G01R33/54

CPC分类号： G01R33/3875 ,  A61B5/0037 ,  A61B5/055 ,  A61B5/7485 ,  G01R33/243 ,  G01R33/543 ,  G01R33/56563

摘要： To enable improved adjustment of at least one shim channel for magnetic resonance imaging of an examination region of an examination object by operation of a magnetic resonance apparatus that has a shim arrangement with a first shim channel volume having at least one first shim channel and a second shim channel volume having at least one second shim channel, the examination region is divided into multiple of sections, multiple first shim parameter sets are determined for the at least one first shim channel, with one first shim parameter set among the multiple first shim parameter sets being ascertained for each of the multiple sections, a second shim parameter set is ascertained for the at least one second shim channel, taking into account the ascertained multiple first shim parameter sets, and magnetic resonance image data of the examination region are acquired, but before this acquisition, the at least one second shim channel is adjusted using the second shim parameter set and the at least one first shim channel is adjusted for acquiring the magnetic resonance image data from a specific section of the multiple sections using a first shim parameter set ascertained for that specific section.

公开(公告)号：US20170238909A1

公开(公告)日：2017-08-24

申请号：US15049935

申请日：2016-02-22

申请人： Jae Yul Shin ,  Nima Tajbakhsh ,  Jianming Liang

发明人： Jae Yul Shin ,  Nima Tajbakhsh ,  Jianming Liang

IPC分类号： A61B8/08 ,  A61B5/0402 ,  A61B8/00 ,  A61B5/00

CPC分类号： A61B8/5284 ,  A61B5/02007 ,  A61B5/0402 ,  A61B5/0456 ,  A61B5/1075 ,  A61B5/489 ,  A61B5/7267 ,  A61B5/7289 ,  A61B5/7485 ,  A61B8/085 ,  A61B8/0891 ,  A61B8/469 ,  A61B8/5223 ,  A61B8/5292

摘要： A system for automatically determining a thickness of a wall of an artery of a subject includes an ECG monitoring device that captures an electrocardiogram (ECG) signal from the subject, and an ultrasound video imaging device, coupled to the ECG monitoring device, that receives the ECG signal from the ECG monitoring device, and captures a corresponding ultrasound video of the wall of the artery of the subject. The system produces a plurality of frames of video comprising the ultrasound video of the wall of the artery of the subject and an image of the ECG signal. A processor is configured to select a subset of the plurality of frames of the ultrasound video based on the image of the (ECG) signal, locate automatically a region of interest (ROI) in each frame of the subset of the plurality of frames of the video using a machine-based artificial neural network and measure automatically a thickness of the wall of the artery in each ROI using the machine-based artificial neural network.

公开(公告)号：US09693710B2

公开(公告)日：2017-07-04

申请号：US14519641

申请日：2014-10-21

申请人： Xerox Corporation

发明人： Lalit Keshav Mestha ,  Beilei Xu ,  Survi Kyal

IPC分类号： A61B6/00 ,  A61B5/08 ,  A61B5/00 ,  A61B5/11

CPC分类号： A61B5/0816 ,  A61B5/1128 ,  A61B5/7282 ,  A61B5/746 ,  A61B5/7485 ,  A61B2576/00

摘要： What is disclosed is a system and method for determining respiration rate from a video of a subject. In one embodiment, a video is received comprising plurality of time-sequential image frames of a region of a subject's body. Features of pixels are extracted from that region from each image frame and vectors formed from these features. Each image frame has an associated feature vector. A N×M video matrix of the vectors of length N is constructed such that a total number of columns M in the video matrix correspond to a time duration over which the subject's respiration rate is to be determined. The video matrix is processed to obtain a matrix of eigenvectors where principal axes of variations due to motion associated with respiration are contained in a first few eigenvectors. One eigenvector is selected from the first few eigenvectors. A respiration rate is obtained from the selected eigenvector.

公开(公告)号：US20170079577A1

公开(公告)日：2017-03-23

申请号：US15370284

申请日：2016-12-06

申请人： ARANZ Healthcare Limited

发明人： William Richard Fright ,  Mark Arthur Nixon ,  Bruce Clinton McCallum ,  James Telford George Preddey

IPC分类号： A61B5/00 ,  H04N5/232 ,  H04N1/00 ,  G06T7/00

CPC分类号： A61B5/445 ,  A61B5/0013 ,  A61B5/0022 ,  A61B5/0059 ,  A61B5/0077 ,  A61B5/01 ,  A61B5/1073 ,  A61B5/1077 ,  A61B5/1079 ,  A61B5/14539 ,  A61B5/444 ,  A61B5/447 ,  A61B5/6898 ,  A61B5/7275 ,  A61B5/7282 ,  A61B5/743 ,  A61B5/746 ,  A61B5/748 ,  A61B5/7485 ,  A61B8/488 ,  A61B8/5223 ,  A61B2034/105 ,  A61B2090/367 ,  A61B2576/02 ,  G01B11/002 ,  G01B11/02 ,  G01B11/14 ,  G01B11/22 ,  G01B11/285 ,  G06T7/0004 ,  G06T7/0014 ,  G06T2207/10028 ,  G06T2207/30088 ,  H04N1/00209 ,  H04N1/00244 ,  H04N5/23222 ,  H04N5/23293

摘要： Dimensions of a surface feature are determined by capturing an image of the surface feature and determining a scale associated with the image. Structured light may be projected onto the surface, such that the position of structured light in the captured image allows determination of scale. A non-planar surface may be unwrapped. The surface may alternatively be projected into a plane to correct for the scene being tilted with respect to the camera axis. A border of the surface feature may be input manually by a user. An apparatus and system for implementing the method are also disclosed.

公开(公告)号：US09445763B2

公开(公告)日：2016-09-20

申请号：US14289364

申请日：2014-05-28

申请人： Digimarc Corporation

发明人： Bruce L. Davis ,  Tony F. Rodriguez ,  William Y. Conwell ,  Shankar Thagadur Shivappa ,  Ravi K. Sharma ,  Richard F. Gibson

IPC分类号： G10L21/00 ,  A61B5/00 ,  G06F19/00 ,  G06T5/40 ,  G06T7/00 ,  G06T7/40 ,  A61B5/103 ,  G06F17/30 ,  G10L19/018

CPC分类号： A61B5/441 ,  A61B5/0075 ,  A61B5/0077 ,  A61B5/1032 ,  A61B5/1034 ,  A61B5/444 ,  A61B5/445 ,  A61B5/4806 ,  A61B5/6898 ,  A61B5/7246 ,  A61B5/7278 ,  A61B5/7282 ,  A61B5/7425 ,  A61B5/743 ,  A61B5/7485 ,  A61B2576/02 ,  G06F17/30424 ,  G06F17/30554 ,  G06F19/00 ,  G06F19/3418 ,  G06T5/40 ,  G06T7/0012 ,  G06T2207/30088 ,  G10L19/018 ,  G16H50/20 ,  G16H50/70 ,  Y02A90/26

摘要： Audio sounds are captured from a subject's body, e.g., using a smartphone or a worn array of microphones. Plural features are derived from the captured audio, and serve as fingerprint information. One such feature may be a time interval over which a threshold part of spectral energy in the audio is expressed. Another may be a frequency bandwidth within which a second threshold part of the spectral energy is expressed. Such fingerprint information is provided to a knowledge base that contains reference fingerprint data and associated metadata. The knowledge base matches the fingerprint with reference fingerprint data, and provides associated metadata in return—which can comprise diagnostic information related to the captured sounds. In some arrangements, an audio signal or pressure waveform stimulates the body at one location, and is sensed at another, to discern information about the intervening transmission medium. A great variety of other features and arrangements are also detailed.

摘要翻译： 音频声音从被摄体的身体捕获，例如使用智能电话或佩带的麦克风阵列。 多个特征源自捕获的音频，并用作指纹信息。 一个这样的特征可以是音频中的频谱能量的阈值部分被表达的时间间隔。 另一个可以是其中表示频谱能量的第二阈值部分的频率带宽。 这样的指纹信息被提供给包含参考指纹数据和相关元数据的知识库。 知识库将指纹与参考指纹数据相匹配，并提供返回的相关元数据，其可以包括与捕获的声音相关的诊断信息。 在一些布置中，音频信号或压力波形在一个位置刺激身体，并在另一个位置被感测，以辨别关于中间传输介质的信息。 还详细介绍了各种各样的其他功能和安排。

公开(公告)号：US09436889B2

公开(公告)日：2016-09-06

申请号：US14668196

申请日：2015-03-25

申请人： FUJIFILM Corporation

发明人： Yuanzhong Li

IPC分类号： G06K9/00 ,  G06K9/46 ,  G06T7/00 ,  G06T7/60 ,  A61B5/055 ,  A61B6/03 ,  A61B6/12 ,  A61B8/08 ,  A61B5/00 ,  A61B5/08

CPC分类号： G06K9/4604 ,  A61B5/0037 ,  A61B5/055 ,  A61B5/08 ,  A61B5/489 ,  A61B5/7485 ,  A61B6/032 ,  A61B6/037 ,  A61B6/12 ,  A61B8/085 ,  G06K9/4642 ,  G06T7/11 ,  G06T7/136 ,  G06T7/162 ,  G06T7/62 ,  G06T2207/10004 ,  G06T2207/10081 ,  G06T2207/30096 ,  G06T2207/30101

摘要： A region setting unit and a specific region extracting unit are included. The region setting unit sets, within an input image that is photographed at a reference time point out a first region estimated as highly probable to be a specific region and a second region estimated as highly probable to be a background region, which is a region other than the specific region. The specific region extracting unit extracts the specific region within the input image based on a first histogram which is a histogram of density values in the first region and a second histogram which is a histogram of density values in the second region. The specific region extracting unit extracts a specific region from the input image that is photographed at a time point different from the reference time point, based on the first histogram and the second histogram.

摘要翻译： 包括区域设定单元和特定区域提取单元。 所述区域设定单元将在基准时刻点拍摄的输入图像中，设定为可能为特定区域的第一区域，以及被估计为高度可能为背景区域的第二区域，所述第二区域是其他区域 比具体地区。 特定区域提取单元基于作为第一区域中的浓度值的直方图的第一直方图和作为第二区域中的浓度值的直方图的第二直方图，提取输入图像内的特定区域。 特定区域提取单元基于第一直方图和第二直方图，从与基准时间点不同的时间点拍摄的输入图像中提取特定区域。

公开(公告)号：US20160148376A1

公开(公告)日：2016-05-26

申请号：US14950543

申请日：2015-11-24

申请人： Samsung Electronics Co., Ltd.

发明人： Seung Woo RYU ,  Seung Chul CHAE ,  Jung Hoe KIM

IPC分类号： G06T7/00 ,  G06K9/62 ,  A61B5/00 ,  G06T5/40

CPC分类号： G06T7/0012 ,  A61B5/055 ,  A61B5/4312 ,  A61B5/7264 ,  A61B5/7485 ,  A61B6/12 ,  A61B6/467 ,  A61B6/469 ,  A61B6/502 ,  A61B6/5217 ,  A61B8/00 ,  A61B8/0825 ,  A61B8/085 ,  A61B8/14 ,  A61B8/469 ,  A61B8/5223 ,  G06K9/6292 ,  G06T2207/10016 ,  G06T2207/10081 ,  G06T2207/10088 ,  G06T2207/10104 ,  G06T2207/10132 ,  G06T2207/20076 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/30096

摘要： Disclosed are Computer Aided Diagnosis (CAD) apparatus and method to combine information on sequential image frames and to provide a superior classification result for the ROI in the image frame. The CAD apparatus may include a Region of Interest (ROI) detector configured to detect an ROI from image frames, a categorizer configured to create groups of image frames having successive ROI sections from among the image frames based on a result of the detection, a classifier configured to classify an ROI detected from each of the image frames belonging to the groups, and a result combiner configured to combine classification results for the image frames belonging to each group from the groups and to calculate a group result for the each group.

摘要翻译： 公开了计算机辅助诊断（CAD）装置和方法，用于组合顺序图像帧上的信息，并为图像帧中的ROI提供优异的分类结果。 CAD装置可以包括被配置为从图像帧检测ROI的感兴趣区域（ROI）检测器，分类器被配置为基于检测结果从图像帧中创建具有连续的ROI部分的图像帧组;分类器 被配置为对从属于所述组的每个图像帧检测到的ROI进行分类，以及结果组合器，被配置为将来自所述组的属于每个组的图像帧的分类结果合并并计算每个组的组结果。