-
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）。
-
公开(公告)号：US08630492B2
公开(公告)日：2014-01-14
申请号：US13563299
申请日：2012-07-31
CPC分类号： G06T7/0012 , A61B5/02007 , A61B8/12 , G06T7/12 , G06T2207/10132 , G06T2207/20101 , G06T2207/30101
摘要： A system and method are provided for using a first vascular image, or more particularly a plurality of control points located thereon, to identify a border on a second vascular image. Embodiments of the present invention operate in accordance with an intra-vascular ultrasound (IVUS) device and a computing device electrically connected thereto. In one embodiment, the computing device includes a plurality of applications operating thereon that are used to (I) identify a border and control points on a first IVUS image (i.e., any IVUS image), (ii) extrapolate the control points to a second IVUS image (i.e., another IVUS image), (iii) identify a border on the second IVUS image, and (iv) adjust the border on the second IVUS image in accordance with at least one factor.
摘要翻译： 提供了一种系统和方法，用于使用位于其上的第一血管图像，或更具体地多个控制点来识别第二血管图像上的边界。 本发明的实施例根据血管内超声（IVUS）装置和与其电连接的计算装置进行操作。 在一个实施例中，计算设备包括多个在其上操作的应用，其用于（I）识别第一IVUS图像（即，任何IVUS图像）上的边界和控制点，（ii）将控制点外推到第二IVUS IVUS图像（即另一IVUS图像），（iii）识别第二IVUS图像上的边界，以及（iv）根据至少一个因素调整第二IVUS图像上的边界。
-
公开(公告)号：US08622910B2
公开(公告)日：2014-01-07
申请号：US13066659
申请日：2011-04-19
IPC分类号： A61B8/00
CPC分类号： A61B8/543 , A61B8/12 , A61B8/445 , G06T7/0012 , G06T2207/30101
摘要： A system and method is provided for substantially synchronizing the acquisition of blood-vessel data to an identifiable portion of heartbeat data. Specifically, a data-gathering device is adapted to acquire heartbeat data and blood-vessel data from a heart-monitoring device and a data-gathering probe, respectively. In a preferred embodiment of the present invention, the blood-vessel data is acquired during a cyclical portion of the heartbeat data. By identifying a cyclical (or commonly reoccurring) portion of the heartbeat data and acquiring blood-vessel data during this cyclical portion (or during an interval that substantially corresponds thereto), the blood vessel can be analyzed as if it were standing still—i.e., not expanding and relaxing. In one embodiment of the present invention, the heart-monitoring device includes an EKG device, the data-gathering device includes an intra-vascular ultrasound (IVUS) device and a computing device, and the data-gathering probe includes at least one transducer. In another embodiment of the present invention, the data-gathering system further includes a retraction device adapted to move the data-gathering probe though a blood vessel at a substantially steady speed.
摘要翻译： 提供了一种用于将血管数据的获取基本上同步到心跳数据的可识别部分的系统和方法。 具体地，数据收集装置适于分别从心脏监测装置和数据收集探针获取心跳数据和血管数据。 在本发明的优选实施例中，在心跳数据的周期部分期间获取血管数据。 通过在该循环部分（或在与其基本对应的间隔期间）识别心跳数据的周期性（或通常重复发生的）部分并获取血管数据，可以像静置时一样分析血管， 不扩大和放松。 在本发明的一个实施例中，所述心脏监测装置包括EKG装置，所述数据收集装置包括血管内超声（IVUS）装置和计算装置，并且所述数据收集探针包括至少一个换能器。 在本发明的另一个实施例中，数据收集系统还包括一个缩回装置，其适于以基本上稳定的速度移动通过血管的数据收集探针。
-
公开(公告)号：US07899224B2
公开(公告)日：2011-03-01
申请号：US11445591
申请日：2006-06-01
CPC分类号： A61B8/12 , A61B5/02007 , A61B5/7257 , A61B5/726 , A61B8/0833 , G06T7/0012 , G06T2207/30101
摘要： A system and method is provided for using backscattered data and known parameters to characterize vascular tissue. Specifically, in one embodiment of the present invention, an ultrasonic device is used to acquire RF backscattered data (i.e., IVUS data) from a blood vessel. The IVUS data is then transmitted to a computing device and used to create an IVUS image. The blood vessel is then cross-sectioned and used to identify its tissue type and to create a corresponding image (i.e., histology image). A region of interest (ROI), preferably corresponding to the identified tissue type, is then identified on the histology image. The computing device, or more particularly, a characterization application operating thereon, is then adapted to identify a corresponding region on the IVUS image. To accurately match the ROI, however, it may be necessary to warp or morph the histology image to substantially fit the contour of the IVUS image. After the corresponding region is identified, the IVUS data that corresponds to this region is identified. Signal processing is then performed and at least one parameter is identified. The identified parameter and the tissue type (e.g., characterization data) is stored in a database. In another embodiment of the present invention, the characterization application is adapted to receive IVUS data, determine parameters related thereto (either directly or indirectly), and use the parameters stored in the database to identify a tissue type or a characterization thereof.
-
公开(公告)号：US07463759B2
公开(公告)日：2008-12-09
申请号：US11449569
申请日：2006-06-08
CPC分类号： A61B8/12 , A61B5/02007 , A61B8/0858
摘要： A system and method use the frequency spectrum of a radio frequency (RF) signal backscattered from vascular tissue to identify at least one border on a vascular image. A data gathering device is connected to a computing device and a transducer via a catheter. RF data generated via the transducer is provided to the computing device via the data-gathering device. The computing device includes: at least one data storage device for storing a plurality of tissue types and parameters related thereto, and at least one application (e.g., a characterization application, a gradient-border application, a frequency-border application and/or an active-contour application). The characterization application converts the RF data into the frequency domain and identifies a plurality of associate parameters. The identified parameters are compared to the parameters stored in the data storage device to identify the corresponding tissue type and thereafter determine at least one border on a vascular image.
摘要翻译： 系统和方法使用从血管组织反向散射的射频（RF）信号的频谱来识别血管图像上的至少一个边界。 数据采集装置通过导管连接到计算装置和换能器。 通过传感器生成的RF数据经由数据采集装置提供给计算装置。 计算设备包括：用于存储与之相关的多个组织类型和参数的至少一个数据存储设备，以及至少一个应用（例如，特征应用，梯度边界应用，频率边界应用和/或 主动轮廓应用）。 表征应用将RF数据转换成频域并识别多个关联参数。 将识别的参数与存储在数据存储设备中的参数进行比较，以识别相应的组织类型，然后确定血管图像上的至少一个边界。
-
公开(公告)号：US07359554B2
公开(公告)日：2008-04-15
申请号：US10649473
申请日：2003-08-26
IPC分类号： G06K9/48
CPC分类号： G06T7/0012 , A61B5/02007 , A61B8/12 , G06T7/12 , G06T2207/10132 , G06T2207/20101 , G06T2207/30101
摘要： A system and method is provided for using a first vascular image, or more particularly a plurality of control points located thereon, to identify a border on a second vascular image. Embodiments of the present invention operate in accordance with an intra-vascular ultrasound (IVUS) device and a computing device electrically connected thereto. Specifically, in one embodiment of the present invention, an IVUS console is electrically connected to a computing device and adapted to acquire IVUS data. The IVUS data (or multiple sets thereof) is then provided to (or acquired by) the computing device. In one embodiment of the present invention, the computing device includes a plurality of applications operating thereon—i.e., a border-detection application, an extrapolation application, and an active-contour application. These applications are used to (i) identify a border and control points on a first IVUS image (i.e., any IVUS image), (ii) extrapolate the control points to a second IVUS image (i.e., another IVUS image), (iii) identify a border on the second IVUS image, and (iv) adjust the border on the second IVUS image in accordance with at least one factor. In one embodiment of the present invention, the at least one factor is selected from a group consisting of gradient factor, continuity factor, and curvature factor.
摘要翻译： 提供了一种系统和方法，用于使用位于其上的第一血管图像，或更具体地多个控制点来识别第二血管图像上的边界。 本发明的实施例根据血管内超声（IVUS）装置和与其电连接的计算装置进行操作。 具体地，在本发明的一个实施例中，IVUS控制台电连接到计算设备并适于获取IVUS数据。 然后将IVUS数据（或其多组）提供给计算设备（或由其获取）。 在本发明的一个实施例中，计算设备包括在其上操作的多个应用，即边界检测应用，外推应用和主动轮廓应用。 这些应用用于（i）识别第一IVUS图像（即，任何IVUS图像）上的边界和控制点，（ii）将控制点外推到第二IVUS图像（即另一IVUS图像），（iii） 识别第二IVUS图像上的边界，以及（iv）根据至少一个因素调整第二IVUS图像上的边界。 在本发明的一个实施例中，至少一个因素选自由梯度因子，连续性因子和曲率因子组成的组。
-
公开(公告)号：US07074188B2
公开(公告)日：2006-07-11
申请号：US10647971
申请日：2003-08-25
CPC分类号： A61B8/12 , A61B5/02007 , A61B5/7257 , A61B5/726 , A61B8/0833 , G06T7/0012 , G06T2207/30101
摘要： A system and method is provided for using backscattered data and known parameters to characterize vascular tissue. Specifically, in one embodiment of the present invention, an ultrasonic device is used to acquire RF backscattered data (i.e., IVUS data) from a blood vessel. The IVUS data is then transmitted to a computing device and used to create an IVUS image. The blood vessel is then cross-sectioned and used to identify its tissue type and to create a corresponding image (i.e., histology image). A region of interest (ROI), preferably corresponding to the identified tissue type, is then identified on the histology image. The computing device, or more particularly, a characterization application operating thereon, is then adapted to identify a corresponding region on the IVUS image. To accurately match the ROI, however, it may be necessary to warp or morph the histology image to substantially fit the contour of the IVUS image. After the corresponding region is identified, the IVUS data that corresponds to this region is identified. Signal processing is then performed and at least one parameter is identified. The identified parameter and the tissue type (e.g., characterization data) is stored in a database. In another embodiment of the present invention, the characterization application is adapted to receive IVUS data, determine parameters related thereto (either directly or indirectly), and use the parameters stored in the database to identify a tissue type or a characterization thereof.
-
公开(公告)号：US08449465B2
公开(公告)日：2013-05-28
申请号：US11580342
申请日：2006-10-14
IPC分类号： A61B8/00
CPC分类号： A61B8/0891 , A61B5/02007 , A61B5/7203 , A61B5/726 , A61B8/0833 , A61B8/12 , A61B8/4461 , A61B8/4488 , A61B8/461 , A61B8/467 , A61B8/52 , A61B8/5238 , G01S7/5205 , G01S7/52087 , G01S15/8977 , G06F19/00
摘要： A system and method is provided for using ultrasound data backscattered from vascular tissue to estimate the transfer function of a catheter and/or substantially synchronizing the acquisition of blood-vessel data to an identifiable portion of heartbeat data. In one embodiment, a computing device and catheter acquire RF backscattered data from a vascular structure. The backscattered ultrasound data is then used to estimate at least one transfer function. The transfer function(s) can then be used to calculate response data for the vascular tissue. Another embodiment includes an IVUS console connected to a catheter and a computing device that acquires RF backscattered data from a vascular structure. Based on the backscattered data, the computing device estimates 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.
摘要翻译： 提供了一种用于使用从血管组织反向散射的超声数据来估计导管的传递功能和/或使血管数据的获取基本上同步到心跳数据的可识别部分的系统和方法。 在一个实施例中，计算装置和导管从血管结构获取RF背散射数据。 然后使用后向散射超声数据来估计至少一个传递函数。 然后可以使用传递函数来计算血管组织的反应数据。 另一个实施例包括连接到导管的IVUS控制台和从血管结构获取RF背散射数据的计算设备。 基于背散射数据，计算装置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。
-
公开(公告)号：US20130028497A1
公开(公告)日：2013-01-31
申请号：US13563299
申请日：2012-07-31
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , A61B5/02007 , A61B8/12 , G06T7/12 , G06T2207/10132 , G06T2207/20101 , G06T2207/30101
摘要： A system and method are provided for using a first vascular image, or more particularly a plurality of control points located thereon, to identify a border on a second vascular image. Embodiments of the present invention operate in accordance with an intra-vascular ultrasound (IVUS) device and a computing device electrically connected thereto. In one embodiment, the computing device includes a plurality of applications operating thereon that are used to (I) identify a border and control points on a first IVUS image (i.e., any IVUS image), (ii) extrapolate the control points to a second IVUS image (i.e., another IVUS image), (iii) identify a border on the second IVUS image, and (iv) adjust the border on the second IVUS image in accordance with at least one factor.
摘要翻译： 提供了一种系统和方法，用于使用位于其上的第一血管图像，或更具体地多个控制点来识别第二血管图像上的边界。 本发明的实施例根据血管内超声（IVUS）装置和与其电连接的计算装置进行操作。 在一个实施例中，计算设备包括多个在其上操作的应用，其用于（I）识别第一IVUS图像（即，任何IVUS图像）上的边界和控制点，（ii）将控制点外推到第二IVUS IVUS图像（即另一IVUS图像），（iii）识别第二IVUS图像上的边界，以及（iv）根据至少一个因素调整第二IVUS图像上的边界。
-
公开(公告)号：US20080287795A1
公开(公告)日：2008-11-20
申请号：US12102661
申请日：2008-04-14
IPC分类号： A61B8/12
CPC分类号： G06T7/0012 , A61B5/02007 , A61B8/12 , G06T7/12 , G06T2207/10132 , G06T2207/20101 , G06T2207/30101
摘要： A system and method is provided for using a first vascular image, or more particularly a plurality of control points located thereon, to identify a border on a second vascular image. Embodiments of the present invention operate in accordance with an intra-vascular ultrasound (IVUS) device and a computing device electrically connected thereto. Specifically, in one embodiment of the present invention, an-IVUS console is electrically connected to a computing device and adapted to acquire IVUS data. The IVUS data (or multiple sets thereof) is then provided to (or acquired by) the computing device. In one embodiment of the present invention, the computing device includes a plurality of applications operating thereon—i.e., a border-detection application, an extrapolation application, and an active-contour application. These applications are used to (i) identify a border and control points on a first IVUS image (i.e., any IVUS image), (ii) extrapolate the control points to a second IVUS image (i.e., another IVUS image), (iii) identify a border on the second IVUS image, and (iv) adjust the border on the second IVUS image in accordance with at least one factor. In one embodiment of the present invention, the at least one factor is selected from a group consisting of gradient factor, continuity factor, and curvature factor.
摘要翻译： 提供了一种系统和方法，用于使用位于其上的第一血管图像，或更具体地多个控制点来识别第二血管图像上的边界。 本发明的实施例根据血管内超声（IVUS）装置和与其电连接的计算装置进行操作。 具体来说，在本发明的一个实施例中，-IVUS控制台电连接到计算设备并适于获取IVUS数据。 然后将IVUS数据（或其多组）提供给计算设备（或由其获取）。 在本发明的一个实施例中，计算设备包括在其上操作的多个应用，即边界检测应用，外推应用和主动轮廓应用。 这些应用用于（i）识别第一IVUS图像（即，任何IVUS图像）上的边界和控制点，（ii）将控制点外推到第二IVUS图像（即另一IVUS图像），（iii） 识别第二IVUS图像上的边界，以及（iv）根据至少一个因素调整第二IVUS图像上的边界。 在本发明的一个实施例中，至少一个因素选自由梯度因子，连续性因子和曲率因子组成的组。
-
-
-
-
-
-
-
-
-
搜索结果
23 条记录 (耗时 0.015 秒)
