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    X-RAY POSE RECOVERY
    1.
    发明申请
    X-RAY POSE RECOVERY 有权

    公开(公告)号：US20140018670A1

    公开(公告)日：2014-01-16

    申请号：US14007334

    申请日：2012-03-29

    申请人： Xin Liu ,  Ameet Kumar Jain

    发明人： Xin Liu ,  Ameet Kumar Jain

    IPC分类号： A61B6/12

    CPC分类号： A61B6/12 ,  A61B6/4441 ,  A61B6/487 ,  A61B6/547 ,  A61B34/20 ,  A61B2090/367 ,  A61B2090/376 ,  A61B2090/3966 ,  F04C2270/041

    摘要： A method, system, and program product are provided for x-ray pose recovery during an endoscopic procedure. An x-ray image is taken with a C-arm at a first pose, capturing a region of an endoscope with fiducials thereon. The C-arm is moved from the first pose to a second pose at another viewing angle while maintaining the position of the endoscope. Anotherx-ray image is taken with the C-arm at the second C-arm pose, capturing the region of the endoscope with the fiducials thereon. The location of the fiducials on each x-ray image is determined using segmentation. An iterative optimization is performed using the locations of the fiducials in the two x-ray images to form two-dimensional projections of the three dimensional curve of the region of the endoscope with fiducials thereon to determine the three-dimensional translation and rotation of the C-arm from the first x-ray pose to the second x-ray pose.

    摘要翻译： 提供了一种方法，系统和程序产品，用于内窥镜过程中的x射线姿态恢复。 以C形臂以第一姿势拍摄x射线图像，在其上捕获具有基准的内窥镜的区域。 在维持内窥镜的位置的同时，C臂在另一个视角从第一姿势移动到第二姿态。 以C臂在第二C臂姿势拍摄另一张X射线图像，以其上的基准捕获内窥镜的区域。 使用分割确定每个X射线图像上的基准点的位置。 使用两个x射线图像中的基准点的位置来执行迭代优化，以形成具有基准的内窥镜区域的三维曲线的二维投影，以确定C的三维平移和旋转 从第一个x射线姿势到第二个x射线姿势。

    VISUALIZATION OF CATHETER OF THREE-DIMENSIONAL ULTRASOUND
    2.
    发明申请
    VISUALIZATION OF CATHETER OF THREE-DIMENSIONAL ULTRASOUND 有权
    三维超声波导管的可视化

    公开(公告)号：US20130281839A1

    公开(公告)日：2013-10-24

    申请号：US13997800

    申请日：2012-01-10

    申请人： Pingkun Yan ,  Vijay Parthasarathy ,  Robert Manzke ,  Ameet Kumar Jain

    发明人： Pingkun Yan ,  Vijay Parthasarathy ,  Robert Manzke ,  Ameet Kumar Jain

    IPC分类号： A61B19/00

    CPC分类号： A61B34/20 ,  A61B6/12 ,  A61B8/0883 ,  A61B8/466 ,  A61B8/483

    摘要： An image-guided system employs an X-ray imaging device (20) for generating one or more X-ray images (25, 26) illustrating a tool (41) within an anatomical region (40) and an ultrasound imaging device (30) for generating an ultrasound image (33) illustrating the tool (41) within the anatomical region (40). The image-guided system further employs a tool tracking device (50) for visually tracking the tool (41) within the anatomical region (40). In operation, the tool tracking device (50) localizes a portion of the tool (41) as located within the ultrasound image (33) responsive to an identification of the portion of the tool (41) as located within the X-ray image(s) (25, 26), and executes an image segmentation of an entirety of the tool (41) as located within the ultrasound image (33) relative to a localization of the portion of the tool (41) as located within the ultrasound image (33).

    摘要翻译： 图像引导系统采用X射线成像装置（20），用于产生示出解剖区域（40）内的工具（41）和超声成像装置（30）的一个或多个X射线图像（25,26） 用于产生示出所述解剖区域（40）内的所述工具（41）的超声图像（33）。 图像引导系统还采用用于在解剖区域（40）内目视跟踪工具（41）的工具跟踪装置（50）。 在操作中，工具跟踪装置（50）响应于位于X射线图像内的工具（41）的部分的识别，使位于超声波图像（33）内的工具（41）的一部分定位 s）（25,26），并且相对于位于超声波图像内的工具（41）的部分的定位，执行位于超声波图像（33）内的整个工具（41）的图像分割 （33）。

    OBJECT-POSE-BASED INITIALIZATION OF AN ULTRASOUND BEAMFORMER
    5.
    发明申请
    OBJECT-POSE-BASED INITIALIZATION OF AN ULTRASOUND BEAMFORMER 审中-公开
    超声波束对象的基于对象的原始初始化

    公开(公告)号：US20140121502A1

    公开(公告)日：2014-05-01

    申请号：US14128139

    申请日：2012-06-19

    申请人： Francois Guy Gerard Marie Vignon ,  Ameet Kumar Jain ,  Jean-Luc Robert

    发明人： Francois Guy Gerard Marie Vignon ,  Ameet Kumar Jain ,  Jean-Luc Robert

    IPC分类号： A61B8/08 ,  A61B8/14 ,  A61M25/01 ,  A61B8/00

    摘要： Beamforming to image an object (310), such as an interventional tool, is enhanced by initializing the beamformer (308) with the object's location, and optionally its orientation. The initializing uses an estimate of the location/orientation. The estimate is derived from the output of one or more sensors (304, 306). These are disposed external to the imaging array (316) that operates with the beamformer. The estimate is made without the need for a result of any imaging based on data arriving by reflected ultrasound. One or more of the sensors may be attached to the object, which may be elongated, as in the case of a needle or catheter used in medical diagnosis and treatment. In some implementations, one or more of the sensors are attached to the imaging probe (302). The sensors may be, for example, ultrasound, electromagnetic, optical, or shape sensors. Alternatively, ultrasound transmitting transducers may be substituted for the ultrasound sensors.

    摘要翻译： 通过用对象的位置初始化波束形成器（308）以及可选的方向来增强对成像对象（310）进行成像（例如介入工具）的波束形成。 初始化使用位置/方向的估计。 估计是从一个或多个传感器（304,306）的输出导出的。 这些设置在与波束成形器一起操作的成像阵列（316）的外部。 无需基于通过反射超声波到达的数据的任何成像的结果进行估计。 如在用于医学诊断和治疗的针或导管的情况下，一个或多个传感器可以附接到物体，该物体可以是细长的。 在一些实施方案中，一个或多个传感器附接到成像探针（302）。 传感器可以是例如超声波，电磁，光学或形状传感器。 或者，可以将超声波发射换能器代替超声波传感器。

    THREE-DIMENSIONAL NEEDLE LOCALIZATION WITH A TWO-DIMENSIONAL IMAGING PROBE
    6.
    发明申请
    THREE-DIMENSIONAL NEEDLE LOCALIZATION WITH A TWO-DIMENSIONAL IMAGING PROBE 审中-公开
    具有二维成像探针的三维针状局部化

    公开(公告)号：US20140094695A1

    公开(公告)日：2014-04-03

    申请号：US14118244

    申请日：2012-06-06

    申请人： Ameet Kumar Jain ,  Francois Guy Gerard Marie Vignon

    发明人： Ameet Kumar Jain ,  Francois Guy Gerard Marie Vignon

    IPC分类号： A61B8/08 ,  A61B8/00

    CPC分类号： A61B8/0841 ,  A61B8/4483 ,  A61B8/4494 ,  A61B8/461 ,  A61B8/466 ,  A61B8/467 ,  A61B8/481 ,  A61B8/52 ,  A61B8/5261 ,  A61B34/20 ,  A61B2034/2051 ,  A61B2034/2063 ,  A61B2090/3929

    摘要： An imaging system and method include a medical device (102) having a tracking element (106) mounted thereon. An array (109) of transducers is spaced apart from one another for exchanging energy in a subject between tracking element and the array of transducers. A trilateration module (104) is configured to interpret signals sensed between tracking element and the array of transducers to compute times of flight of signals associated with the transducers in the array such that a position of tracking element is determined in at least two dimensions to locate a position of the medical device in a visual image.

    摘要翻译： 成像系统和方法包括具有安装在其上的跟踪元件（106）的医疗装置（102）。 换能器的阵列（109）彼此间隔开，用于在跟踪元件和换能器阵列之间的受试者中交换能量。 三边测量模块（104）被配置为解释在跟踪元件和换能器阵列之间感测的信号，以计算与阵列中的换能器相关联的信号的飞行时间，使得跟踪元件的位置在至少二维中被确定以定位 医疗设备在视觉图像中的位置。