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    • 3. 发明申请
    • PARAMETRIC IMAGES BASED ON DYNAMIC BEHAVIOR OVER TIME
    • 基于动态行为的参考图像
    • US20120237098A1
    • 2012-09-20
    • US13393633
    • 2010-09-01
    • Nicolas RogninMarcel ArditiLaurent MercierPeter Frinking
    • Nicolas RogninMarcel ArditiLaurent MercierPeter Frinking
    • G06K9/00
    • G06T7/0016G06T2207/10132G06T2207/30104
    • An embodiment for analyzing a body-part of a patient is proposed. A corresponding data-processing method includes the steps of providing a sequence of input images representing the body-part over an analysis period, each input image including a set of input values each one being indicative of a response to an interrogation signal of a corresponding location of the body-part at a corresponding acquisition instant included in the analysis period, associating an analysis function of time with each one of a set of selected locations, the analysis function modeling a trend of the input values of the selected location in the sequence of input images, and providing a reference function of time for the analysis functions; in an embodiment, the data-processing method further includes comparing the analysis function of each selected location with the reference function to determine a polarity trend representing a trend over the analysis period of a polarity of a divergence between the analysis function of the selected location and the reference function, and creating a parametric image including a parametric value for each selected location, the parametric value being indicative of the polarity trend of the selected location.
    • 提出了一种用于分析患者身体部位的实施例。 相应的数据处理方法包括以下步骤:在分析周期内提供表示身体部分的输入图像序列,每个输入图像包括一组输入值,每个输入值指示对相应位置的询问信号的响应 在分析周期中包括的相应采集时刻的身体部分相关联,将时间分析功能与一组选定位置中的每一个相关联,分析功能模拟所选位置的输入值的趋势, 输入图像,并提供分析功能的时间参考功能; 在一个实施例中,数据处理方法还包括将每个所选择的位置的分析功能与参考功能进行比较,以确定代表所选位置的分析功能的极性的分析周期的趋势的极性趋势和 参考功能,以及创建包括每个选定位置的参数值的参数图像,参数值表示所选位置的极性趋势。
    • 4. 发明申请
    • AUTO-SCALING OF PARAMETRIC IMAGES
    • 参数图像的自动缩放
    • US20120082359A1
    • 2012-04-05
    • US13377143
    • 2010-06-08
    • Marcel ArditiLaurent MercierNicolas RogninPeter FrinkingEric Allemann
    • Marcel ArditiLaurent MercierNicolas RogninPeter FrinkingEric Allemann
    • G06K9/00
    • A61B8/5215A61B5/72A61B6/5211A61B8/06A61B8/481G06T5/009G06T5/40G06T2207/10132
    • An embodiment is proposed for analyzing a body-part. A corresponding embodiment of a data-processing method includes the steps of providing a parametric map including a plurality of parameter values each one characterizing a corresponding location of the body-part, and determining at least one statistical indicator of at least one distribution of a plurality of analysis parameter values corresponding to selected analysis locations, each statistical indicator being indicative of a condition of an analysis region of the body-part defined by the analysis locations. In an embodiment, the step of determining at least one statistical indicator includes, for each distribution of the analysis parameter values, determining a saturation value partitioning an ordered sequence of processing parameter values, corresponding to selected processing locations at least including the analysis locations, into a first subset and a second subset consisting of a number of the processing parameter values being determined according to a predefined auto-scaling percentage, generating an auto-scaled map including, for each processing location, an auto-scaled value being equal to the corresponding processing parameter value if included in the second subset, or the saturation value if the corresponding processing parameter value is included in the first subset, and determining the at least one statistical indicator from the auto-scaled values corresponding to the analysis locations.
    • 提出了用于分析身体部位的实施例。 数据处理方法的相应实施例包括以下步骤:提供包括表征身体部位的对应位置的多个参数值的参数图,以及确定至少一个多个分布的分布的统计指标 对应于所选分析位置的分析参数值,每个统计指标指示由分析位置定义的身体部分的分析区域的状况。 在一个实施例中,确定至少一个统计指示符的步骤包括对于分析参数值的每个分布,确定将对应于至少包括分析位置的所选处理位置的处理参数值的有序序列划分为饱和值, 由根据预定义的自动缩放百分比确定的多个处理参数值组成的第一子集和第二子集,生成自动缩放图,包括对于每个处理位置,自动缩放值等于相应的 如果包括在第二子集中则处理参数值,或者如果相应的处理参数值包括在第一子集中则为饱和值,以及根据与分析位置对应的自动缩放值确定至少一个统计指标。
    • 5. 发明授权
    • Parametric images based on dynamic behavior over time
    • 基于动态行为的参数图像
    • US08929634B2
    • 2015-01-06
    • US13393633
    • 2010-09-01
    • Nicolas RogninMarcel ArditiLaurent MercierPeter Frinking
    • Nicolas RogninMarcel ArditiLaurent MercierPeter Frinking
    • G06K9/00G06T7/00A61B5/00A61B5/05
    • G06T7/0016G06T2207/10132G06T2207/30104
    • An embodiment for analyzing a body-part of a patient is proposed. A corresponding data-processing method includes the steps of providing a sequence of input images representing the body-part over an analysis period, each input image including a set of input values each one being indicative of a response to an interrogation signal of a corresponding location of the body-part at a corresponding acquisition instant included in the analysis period, associating an analysis function of time with each one of a set of selected locations, the analysis function modeling a trend of the input values of the selected location in the sequence of input images, and providing a reference function of time for the analysis functions; in an embodiment, the data-processing method further includes comparing the analysis function of each selected location with the reference function to determine a polarity trend representing a trend over the analysis period of a polarity of a divergence between the analysis function of the selected location and the reference function, and creating a parametric image including a parametric value for each selected location, the parametric value being indicative of the polarity trend of the selected location.
    • 提出了一种用于分析患者身体部位的实施例。 相应的数据处理方法包括以下步骤:在分析周期内提供表示身体部分的输入图像序列,每个输入图像包括一组输入值,每个输入值指示对相应位置的询问信号的响应 在分析周期中包括的相应采集时刻的身体部分相关联,将时间分析功能与一组选定位置中的每一个相关联,分析功能模拟所选位置的输入值的趋势, 输入图像,并提供分析功能的时间参考功能; 在一个实施例中,数据处理方法还包括将每个所选择的位置的分析功能与参考功能进行比较,以确定代表所选位置的分析功能的极性的分析周期的趋势的极性趋势和 参考功能,以及创建包括每个选定位置的参数值的参数图像,参数值表示所选位置的极性趋势。
    • 6. 发明申请
    • Real-Time Perfusion Imaging and Quantification
    • 实时灌注成像和定量
    • US20110213244A1
    • 2011-09-01
    • US13127389
    • 2009-11-23
    • Peter FrinkingLaurent MercierNicolas RogninMarcel Arditi
    • Peter FrinkingLaurent MercierNicolas RogninMarcel Arditi
    • A61B8/00
    • A61B5/055A61B6/504A61B6/507A61B8/06A61B8/481G01R33/563G01R33/56366
    • A solution for diagnostic applications is proposed. Particularly, a corresponding diagnostic system includes means (903-906) for providing (A1-A3) a plurality of input signals representative of a body-part being perfused with a contrast agent over time, each input signal being indicative of a response to an interrogating stimulus of a corresponding location of the body-part possibly including the contrast agent, means (909-930) for generating (A4.1-A4.3) a plurality of filtered signals from selected input signals of selected locations, each filtered signal at each instant over time being generated from a corresponding selected input signal according to a portion of the selected input signal including said instant, and means (933-939) for monitoring (A4.4-A4.6) each filtered signal to detect a peak in the response to the interrogation stimulus of the corresponding selected location, the peak being detected in response to the fulfillment of a stability condition by a corresponding portion of the filtered signal.
    • 提出了诊断应用的解决方案。 特别地,相应的诊断系统包括用于提供(A1-A3)多个输入信号的装置(903-906),所述输入信号表示随时间灌注造影剂的身体部位,每个输入信号指示对 用于询问可能包括造影剂的身体部位的对应位置的询问刺激,用于从所选位置的选定输入信号产生(A4.1-A4.3)多个经滤波的信号的装置(909-930),每个滤波信号 随着时间的推移,根据包括所述时刻的所选择的输入信号的一部分,从相应的所选择的输入信号产生每个时刻,以及用于监视(A4.4-A4.6)每个滤波信号的装置(933-939),以检测 响应于对应选择位置的询问激励的峰值,响应于由滤波信号的相应部分实现稳定性条件而检测到峰值。