-
公开(公告)号：US08808183B2
公开(公告)日：2014-08-19
申请号：US12878770
申请日：2010-09-09
IPC分类号： A61B8/00
CPC分类号： A61B5/02007 , A61B5/726 , A61B8/12
摘要： A system and method is provided for using ultrasound data backscattered from vascular tissue to estimate the transfer function of a catheter (including components attached thereto—e.g., IVUS console, transducer, etc.). Specifically, in accordance with a first embodiment of the present invention, a computing device is electrically connected to a catheter and used to acquire RF backscattered data from a vascular structure (e.g., a blood vessel, etc.). The backscattered ultrasound data is then used, together with an algorithm, to estimate the transfer function. The transfer function can then be used (at least in a preferred embodiment) to calculate response data for the vascular tissue (i.e., the tissue component of the backscattered ultrasound data). In a second embodiment of the present invention, an IVUS console is electrically connected to a catheter and a computing device and is used to acquire RF backscattered data from a vascular structure. The backscattered data is then transmitted to the computing device, where it is used to estimate the catheter's transfer function and to calculate response data for the vascular tissue. The response data and histology data are then used to characterize at least a portion of the vascular tissue (e.g., identify tissue type, etc.).
摘要翻译： 提供了一种系统和方法，用于使用从血管组织反向散射的超声数据来估计导管（包括与其连接的部件，例如，IVUS控制台，换能器等）的传递功能。 具体地，根据本发明的第一实施例，计算设备电连接到导管并用于从血管结构（例如，血管等）获取RF背散射数据。 然后将后向散射的超声数据与算法一起用于估计传递函数。 然后可以使用传递函数（至少在一个优选实施例中）来计算血管组织的反应数据（即背散射超声数据的组织分量）。 在本发明的第二实施例中，IVUS控制台电连接到导管和计算设备，并用于从血管结构获取RF背散射数据。 然后将背散射数据传输到计算设备，其中其用于估计导管的传递函数并计算血管组织的反应数据。 然后使用响应数据和组织学数据来表征血管组织的至少一部分（例如，识别组织类型等）。
-
2.发明授权公开(公告)号：US06381350B1
公开(公告)日：2002-04-30
申请号：US09347209
申请日：1999-07-02
IPC分类号： G06K900
CPC分类号： A61B8/4461 , A61B5/02007 , A61B5/1076 , A61B8/0833 , A61B8/0858 , A61B8/12 , A61B8/463 , G06K9/6207 , G06T7/12 , G06T7/149 , G06T2207/10132 , G06T2207/20101 , G06T2207/30101
摘要： An intravascular ultrasound (IVUS) analysis system and method is provided which determines luminal and medial-adventitial boundaries of a blood vessel. Ultrasonic data is acquired by a rotating transducer mounted to a tip of a catheter which is inserted into the blood vessel. An intravascular image is reconstructed from the ultrasound data. To determine the luminal boundary of a vessel, a user selects boundary points on the image believed to be locations of the luminal boundary. A boundary contour is generated based on the boundary points. The boundary contour is then optimized by adjusting the boundary points based on a radially determined edge of the luminal boundary performed on the image in polar format. Once the final luminal boundary contour is generated, the process is repeated to determine the medial-adventitial boundary contour. With the contour data, properties of the blood vessel are analyzed including determining the area of the lumen and percent of occlusion caused by plaque.
摘要翻译： 提供了一种血管内超声（IVUS）分析系统和方法，其确定血管的腔内和外侧 - 外膜边界。 通过安装到插入血管的导管的尖端的旋转传感器来获取超声数据。 从超声数据重建血管内图像。 为了确定容器的管腔边界，用户选择被认为是管腔边界位置的图像上的边界点。 基于边界点生成边界轮廓。 然后通过基于以极性格式对图像执行的腔边界的径向确定的边缘调整边界点来优化边界轮廓。 一旦产生最终的管腔边界轮廓，重复该过程以确定内侧 - 外膜边界轮廓。 使用轮廓数据，分析血管的性质，包括确定管腔面积和由斑块引起的闭塞百分比。
-
3.发明申请PLAQUE CHARACTERIZATION USING MULTIPLE INTRAVASCULAR ULTRASOUND DATASETS HAVING DISTINCT FILTER BANDS 有权使用具有异常过滤器的多个超声波超声波数据的PLAQUE特征公开(公告)号：US20080234582A1
公开(公告)日：2008-09-25
申请号：US11689327
申请日：2007-03-21
IPC分类号： A61B8/13
CPC分类号： A61B8/5207 , A61B5/02007 , A61B8/085 , A61B8/12 , A61B8/4488 , A61B8/461 , G01S7/52036 , G01S15/8956
摘要： A system and method are disclosed that facilitate generating visual representations of characterized tissue based upon ultrasound echo information obtained from a portion of an imaged body. The system includes a first filter having a first filter band that is applied to a near range portion of the ultrasound echo information to render near range filtered echo information. A second filter, having a second filter band that covers a frequency range of the first filter band, is applied to a far range portion of the ultrasound echo information to render far range filtered echo information. The system furthermore includes a set of characterization criteria that are applied to the near and far range filtered echo information. The characterized near and far range image data are thereafter combined into a single tissue-characterization image.
摘要翻译： 公开了一种系统和方法，其基于从成像体的一部分获得的超声回波信息便于生成特征性组织的视觉表示。 该系统包括具有第一滤波器带的第一滤波器，该滤波器频带被施加到超声回波信息的近距离部分以呈现近距离滤波的回波信息。 具有覆盖第一滤波器频带的频率范围的第二滤波器带的第二滤波器被施加到超声波回波信息的远程部分，以产生远距离滤波的回波信息。 该系统还包括应用于近距离和远距离过滤的回波信息的一组表征标准。 然后将表征的近距离和远距离图像数据组合成单个组织表征图像。
-
公开(公告)号：US08425423B2
公开(公告)日：2013-04-23
申请号：US12875390
申请日：2010-09-03
CPC分类号： A61B8/5207 , A61B5/02007 , A61B8/085 , A61B8/12 , A61B8/4488 , A61B8/461 , G01S7/52036 , G01S15/8956
摘要： A system and method are disclosed that facilitate generating visual representations of characterized tissue based upon ultrasound echo information obtained from a portion of an imaged body. The system includes a first filter having a first filter band that is applied to a near range portion of the ultrasound echo information to render near range filtered echo information. A second filter, having a second filter band that covers a frequency range of the first filter band, is applied to a far range portion of the ultrasound echo information to render far range filtered echo information. The system furthermore includes a set of characterization criteria that are applied to the near and far range filtered echo information. The characterized near and far range image data are thereafter combined into a single tissue-characterization image.
-
5.发明授权Plaque characterization using multiple intravascular ultrasound datasets having distinct filter bands 有权使用具有不同滤光片带的多个血管内超声数据集的斑块表征公开(公告)号：US07789834B2
公开(公告)日：2010-09-07
申请号：US11689327
申请日：2007-03-21
CPC分类号： A61B8/5207 , A61B5/02007 , A61B8/085 , A61B8/12 , A61B8/4488 , A61B8/461 , G01S7/52036 , G01S15/8956
摘要： A system and method are disclosed that facilitate generating visual representations of characterized tissue based upon ultrasound echo information obtained from a portion of an imaged body. The system includes a first filter having a first filter band that is applied to a near range portion of the ultrasound echo information to render near range filtered echo information. A second filter, having a second filter band that covers a frequency range of the first filter band, is applied to a far range portion of the ultrasound echo information to render far range filtered echo information. The system furthermore includes a set of characterization criteria that are applied to the near and far range filtered echo information. The characterized near and far range image data are thereafter combined into a single tissue-characterization image.
摘要翻译： 公开了一种系统和方法，其基于从成像体的一部分获得的超声回波信息便于生成特征性组织的视觉表示。 该系统包括具有第一滤波器带的第一滤波器，该滤波器频带被施加到超声回波信息的近距离部分以呈现近距离滤波的回波信息。 具有覆盖第一滤波器频带的频率范围的第二滤波器带的第二滤波器被施加到超声波回波信息的远程部分，以产生远距离滤波的回波信息。 该系统还包括应用于近距离和远距离过滤的回波信息的一组表征标准。 然后将表征的近距离和远距离图像数据组合成单个组织表征图像。
-
6.发明申请Device and Method for Determining the Likelihood of a Patient Having a Clinical Event or a Clinically Silent Event Based on Ascertained Physiological Parameters 审中-公开用于确定具有基于确定的生理参数的临床事件或临床静默事件的患者的可能性的装置和方法公开(公告)号：US20130066212A1
公开(公告)日：2013-03-14
申请号：US13497668
申请日：2010-09-25
申请人： Marja Margolis , David Geoffrey Vince , Anuja Nair
发明人： Marja Margolis , David Geoffrey Vince , Anuja Nair
CPC分类号： A61B5/7275 , A61B5/02007 , A61B8/12 , G16H50/20 , Y02A90/26
摘要： A patient's physiological parameters, ascertained using intravascular ultrasound (IVUS) in combination with virtual histology (VH), are evaluated to predict whether the patient's physiology has an increased risk of producing a Clinical Event or a Silent Clinical Event. In one embodiment, one or more physiological parameters, such as Plaque Burden, Minimum Lumen Area, and whether or multiple VH-TCFAs are present, are compared to target values and/or ranges. A concurrence of the values for the physiological parameters to the target ranges indicates that a patient's physiology has an increased risk of producing a Clinical Event or a Silent Clinical Event.
摘要翻译： 评估使用血管内超声（IVUS）与虚拟组织学（VH）联合确定的患者的生理参数，以预测患者的生理学是否具有产生临床事件或静默临床事件的风险增加。 在一个实施例中，将一个或多个生理参数，例如斑块负荷，最小流明面积以及是否存在多个VH-TCFA存在，与目标值和/或范围进行比较。 生理参数值与目标范围的一致表明，患者的生理学具有产生临床事件或静默临床事件的风险增加。
-
7.发明申请Plaque Characterization Using Multiple Intravascular Ultrasound Datasets Having Distinct Filter Bands 有权使用具有不同过滤带的多个血管内超声数据的斑块表征公开(公告)号：US20100331695A1
公开(公告)日：2010-12-30
申请号：US12875390
申请日：2010-09-03
CPC分类号： A61B8/5207 , A61B5/02007 , A61B8/085 , A61B8/12 , A61B8/4488 , A61B8/461 , G01S7/52036 , G01S15/8956
摘要： A system and method are disclosed that facilitate generating visual representations of characterized tissue based upon ultrasound echo information obtained from a portion of an imaged body. The system includes a first filter having a first filter band that is applied to a near range portion of the ultrasound echo information to render near range filtered echo information. A second filter, having a second filter band that covers a frequency range of the first filter band, is applied to a far range portion of the ultrasound echo information to render far range filtered echo information. The system furthermore includes a set of characterization criteria that are applied to the near and far range filtered echo information. The characterized near and far range image data are thereafter combined into a single tissue-characterization image.
摘要翻译： 公开了一种系统和方法，其基于从成像体的一部分获得的超声回波信息便于生成特征性组织的视觉表示。 该系统包括具有第一滤波器带的第一滤波器，该滤波器频带被施加到超声回波信息的近距离部分以呈现近距离滤波的回波信息。 具有覆盖第一滤波器频带的频率范围的第二滤波器带的第二滤波器被施加到超声波回波信息的远程部分，以产生远距离滤波的回波信息。 该系统还包括应用于近距离和远距离过滤的回波信息的一组表征标准。 然后将表征的近距离和远距离图像数据组合成单个组织表征图像。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.02 秒)