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159 条记录 (耗时 0.029 秒)

    Methods and systems for discriminating bands in scalograms
    31.
    发明授权
    Methods and systems for discriminating bands in scalograms 有权
    用于在标尺中区分带的方法和系统

    公开(公告)号：US08077297B2

    公开(公告)日：2011-12-13

    申请号：US12245232

    申请日：2008-10-03

    申请人： Paul Stanley Addison ,  James Watson ,  David Clifton

    发明人： Paul Stanley Addison ,  James Watson ,  David Clifton

    IPC分类号： G01J3/433

    CPC分类号： G06K9/00516 ,  A61B5/0205 ,  A61B5/021 ,  A61B5/024 ,  A61B5/14551 ,  A61B5/7207 ,  A61B5/7225 ,  A61B5/7239 ,  A61B5/726

    摘要： The present disclosure is directed towards embodiments of systems and methods for discriminating (e.g., masking out) scale bands that are determined to be not of interest from a scalogram derived from a continuous wavelet transform of a signal. Techniques for determining whether a scale band is not of interest include, for example, determining whether a scale band's amplitude is being modulated by one or more other bands in the scalogram. Another technique involves determining whether a scale band is located between two other bands and has energy less than that of its neighboring bands. Another technique involves determining whether a scale band is located at about half the scale of another, more dominant (i.e., higher energy) band.

    摘要翻译： 本公开涉及用于从由信号的连续小波变换导出的标尺来鉴别（例如，屏蔽）被确定为不感兴趣的标度带的系统和方法的实施例。 用于确定缩放带是否不感兴趣的技术包括例如确定缩放带的幅度是否正在由缩放图中的一个或多个其他频带调制。 另一技术涉及确定尺度带是位于两个其他频带之间并且具有小于其相邻频带的能量的能量。 另一种技术涉及确定刻度带是否位于另一个（更高的能量）带的大约一半的尺度。

    Systems And Methods For Gating An Imaging Device
    32.
    发明申请
    Systems And Methods For Gating An Imaging Device 有权
    用于门控成像装置的系统和方法

    公开(公告)号：US20110074409A1

    公开(公告)日：2011-03-31

    申请号：US12567287

    申请日：2009-09-25

    申请人： Robert Stoughton ,  Paul Stanley Addison ,  James Watson

    发明人： Robert Stoughton ,  Paul Stanley Addison ,  James Watson

    IPC分类号： G01R33/48 ,  H05G1/60 ,  G01T1/166

    CPC分类号： A61B6/541 ,  A61B5/0205 ,  G01R33/5673

    摘要： A method and system for automatically gating an imaging device is disclosed. Physiological process information of a patient may be derived from a plethysmographic signal, for example, by analyzing the plethysmographic signal transformed by a continuous wavelet transform. Other techniques for deriving physiological process information of a patient include, for example, analyzing a scalogram derived from the continuous wavelet transform. The physiological process information may be used to automatically gate imaging data acquired from an imaging device in order to synchronize the imaging data with the physiological process information.

    摘要翻译： 公开了一种用于自动选通成像装置的方法和系统。 患者的生理过程信息可以来自体积描记信号，例如通过分析通过连续小波变换变换的体积描记信号。 用于导出患者的生理过程信息的其它技术包括例如分析从连续小波变换导出的标尺图。 生理过程信息可用于自动地对从成像设备获取的成像数据进行门控，以便使成像数据与生理过程信息同步。

    VENOUS OXYGEN SATURATION SYSTEMS AND METHODS
    34.
    发明申请
    VENOUS OXYGEN SATURATION SYSTEMS AND METHODS 有权

    公开(公告)号：US20130066174A1

    公开(公告)日：2013-03-14

    申请号：US13229458

    申请日：2011-09-09

    申请人： Paul S. Addison ,  James Watson ,  James Ochs ,  Scott McGonigle

    发明人： Paul S. Addison ,  James Watson ,  James Ochs ,  Scott McGonigle

    IPC分类号： A61B5/1455

    CPC分类号： A61B5/14551 ,  A61B5/7207 ,  A61B5/7239 ,  A61B5/726

    摘要： Methods and systems are discussed for determining venous oxygen saturation by calculating a ratio of ratios from respiration-induced baseline modulations. A calculated venous ratio of ratios may be compared with a look-up table value to estimate venous oxygen saturation. A calculated venous ratio of ratios is compared with an arterial ratio of ratios to determine whether baseline modulations are the result of a subject's respiration or movement. Such a determination is also made by deriving a venous ratio of ratios using a transform technique, such as a continuous wavelet transform. Derived venous and arterial saturation values are used to non-invasively determine a cardiac output of the subject.

    Venous oxygen saturation systems and methods
    35.
    发明授权
    Venous oxygen saturation systems and methods 有权

    公开(公告)号：US09597022B2

    公开(公告)日：2017-03-21

    申请号：US13229458

    申请日：2011-09-09

    申请人： Paul Addison ,  James Watson ,  James Ochs ,  Scott McGonigle

    发明人： Paul Addison ,  James Watson ,  James Ochs ,  Scott McGonigle

    IPC分类号： A61B5/1455 ,  A61B5/00

    CPC分类号： A61B5/14551 ,  A61B5/7207 ,  A61B5/7239 ,  A61B5/726

    摘要： Methods and systems are discussed for determining venous oxygen saturation by calculating a ratio of ratios from respiration-induced baseline modulations. A calculated venous ratio of ratios may be compared with a look-up table value to estimate venous oxygen saturation. A calculated venous ratio of ratios is compared with an arterial ratio of ratios to determine whether baseline modulations are the result of a subject's respiration or movement. Such a determination is also made by deriving a venous ratio of ratios using a transform technique, such as a continuous wavelet transform. Derived venous and arterial saturation values are used to non-invasively determine a cardiac output of the subject.

    Systems and methods for detecting and monitoring arrhythmias using the PPG
    38.
    发明授权
    Systems and methods for detecting and monitoring arrhythmias using the PPG 有权
    使用PPG检测和监测心律失常的系统和方法

    公开(公告)号：US09113830B2

    公开(公告)日：2015-08-25

    申请号：US13118995

    申请日：2011-05-31

    申请人： Peter Galen ,  Paul Addison ,  James Watson ,  Scott McGonigle

    发明人： Peter Galen ,  Paul Addison ,  James Watson ,  Scott McGonigle

    IPC分类号： A61B5/02 ,  A61B5/1455 ,  A61B5/00

    CPC分类号： A61B5/02416 ,  A61B5/14551 ,  A61B5/726 ,  A61B5/7282

    摘要： Systems and methods for detecting and monitoring arrhythmias from a signal are provided. A signal processing system may transform a signal using a wavelet transformation and analyze changes in features of the transformed signal to detect pulse rhythm abnormalities. For example, the system may detect pulse rhythm abnormalities by analyzing energy parameters, morphology changes, and pattern changes in the scalogram of a PPG signal. Further, the system may detect pulse rhythm abnormalities by analyzing both the PPG signal and its corresponding scalogram. Physiological information, such as cardiac arrhythmia, may be derived based on the detected pulse rhythm abnormality.

    摘要翻译： 提供了用于从信号中检测和监测心律失常的系统和方法。 信号处理系统可以使用小波变换来变换信号，并分析变换信号的特征的变化以检测脉搏节律异常。 例如，系统可以通过分析能量参数，形态变化和PPG信号的标尺中的模式变化来检测脉搏节律异常。 此外，系统可以通过分析PPG信号及其对应的标尺来检测脉搏节律异常。 可以基于检测到的脉搏节律异常导出生理信息，例如心律失常。

    SYSTEMS AND METHODS FOR DETERMINING RESPIRATION INFORMATION FROM A PHOTOPLETHYSMOGRAPH
    40.
    发明申请
    SYSTEMS AND METHODS FOR DETERMINING RESPIRATION INFORMATION FROM A PHOTOPLETHYSMOGRAPH 有权
    用于从光电子能谱测定呼吸信息的系统和方法

    公开(公告)号：US20130079606A1

    公开(公告)日：2013-03-28

    申请号：US13243853

    申请日：2011-09-23

    申请人： Scott McGonigle ,  Paul S. Addison ,  James Ochs ,  James Watson

    发明人： Scott McGonigle ,  Paul S. Addison ,  James Ochs ,  James Watson

    IPC分类号： A61B5/1455 ,  A61B5/08

    CPC分类号： A61B5/0816 ,  A61B5/14551 ,  A61B5/7232 ,  A61B5/7239

    摘要： A patient monitoring system may receive a photoplethysmograph (PPG) signal including samples of a pulse waveform. The PPG signal may demonstrate morphology changes based on respiration. The system may calculate morphology metrics from the PPG signal, the first derivative of the PPG signal, the second derivative of the PPG signal, or any combination thereof. The morphology metrics may demonstrate amplitude modulation, baseline modulation, and frequency modulation of the PPG signal that is related to respiration. Morphology metric signals generated from the morphology metrics may be used to determine respiration information such as respiration rate.

    摘要翻译： 患者监测系统可以接收包括脉搏波形样本的光电容积描记器（PPG）信号。 PPG信号可以显示基于呼吸的形态学变化。 该系统可以计算来自PPG信号，PPG信号的一阶导数，PPG信号的二阶导数或其任何组合的形态度量。 形态学指标可以显示与呼吸相关的PPG信号的幅度调制，基线调制和频率调制。 从形态学指标产生的形态学度量信号可用于确定呼吸信息，例如呼吸速率。