公开(公告)号：US20100121190A1

公开(公告)日：2010-05-13

申请号：US12269663

申请日：2008-11-12

申请人： Nikolaos Pagoulatos ,  Qinglin Ma

发明人： Nikolaos Pagoulatos ,  Qinglin Ma

IPC分类号： A61B8/00 ,  G06K9/00

CPC分类号： A61B8/0841 ,  A61B5/061 ,  A61B8/00 ,  A61B8/461 ,  A61B8/463 ,  A61B8/466 ,  A61B8/483 ,  A61B34/20 ,  A61B2090/378 ,  G06T7/246 ,  G06T2207/30021

摘要： Systems and methods which operate to identify interventional instruments and/or other objects in images are shown. Embodiments operate to extract relevant information regarding interventional instruments from a multi-dimensional volume for presenting the information to a user in near real-time with little or no user interaction. Objects may be identified by segmenting a multi-dimensional volume, identifying a putative object of interest in multiple multi-dimensional volume segments, and determining a position of the object of interest within the multi-dimensional volume using the putative object of interest segment identifications. Identification of objects of interest according to embodiments may be utilized to determine an image plane for use in displaying the objects within a generated image, to track the objects within the multi-dimensional volume, etc., such as for medical examination, interventional procedures, diagnosis treatment, and/or the like.

摘要翻译： 示出了用于识别图像中的介入仪器和/或其它物体的系统和方法。 实施例操作以从几维体积中提取关于介入器具的相关信息，用于以很少或没有用户交互接近实时地向用户呈现信息。 可以通过分割多维体积来识别对象，在多个多维体积分段中识别所关注的推定对象，以及使用推定的兴趣分段标识对象来确定多维体积内的感兴趣对象的位置。 可以利用根据实施例的感兴趣对象的识别来确定用于在生成的图像中显示对象的图像平面，以跟踪多维体积内的对象等，例如用于体检，介入程序， 诊断治疗和/或类似物。

公开(公告)号：US06599245B1

公开(公告)日：2003-07-29

申请号：US09604568

申请日：2000-06-27

申请人： Qinglin Ma ,  John C. Lazenby ,  Lin Xin Yao ,  Bruce A. McDermott ,  David A. Petersen

发明人： Qinglin Ma ,  John C. Lazenby ,  Lin Xin Yao ,  Bruce A. McDermott ,  David A. Petersen

IPC分类号： A61B800

CPC分类号： G10K11/346 ,  G01S7/52046

摘要： A system for controlling the point spread function of an ultrasound signal transmitted into a patient. In accordance with one embodiment of the invention, only a selected number of the transducer elements transmit a transmit pulse. The elements which do not transmit the pulse are selected in accordance with an apodization probability density function. In accordance with another aspect of the present invention, each transducer element transmits a variable portion of a transmit pulse in order to control the acoustic power of the signal transmitted from each element.

摘要翻译： 一种用于控制发送到患者体内的超声信号的点扩散功能的系统。 根据本发明的一个实施例，只有选定数量的换能器元件发送发射脉冲。 根据变迹概率密度函数选择不发送脉冲的元件。 根据本发明的另一方面，每个换能器元件发送发射脉冲的可变部分，以便控制从每个元件发送的信号的声功率。

公开(公告)号：US6160340A

公开(公告)日：2000-12-12

申请号：US196609

申请日：1998-11-18

申请人： Xiaocong Guo ,  Christopher S. Chapman ,  Qinglin Ma

发明人： Xiaocong Guo ,  Christopher S. Chapman ,  Qinglin Ma

IPC分类号： B06B1/06 ,  G10K11/02 ,  H01L41/04

CPC分类号： G10K11/02 ,  B06B1/0629

摘要： An ultrasonic transducer has a center row of transducers operating at a center row frequency and first and second outer rows of transducers operating at a common frequency or different frequencies lower than the center row frequency. In an enhancement of the ultrasonic transducer array, the center row of transducers has a matching layer with an acoustic velocity that is higher than matching layers that are associated with the first outer row and second outer row transducers. The matching layers can be selected such that the overall thickness of the transducer array is constant. A 1.5D ultrasonic transducer array operating at a higher center frequency and lower outer frequencies is adjustable to allow high resolution near field imaging in addition to better far field imaging without the need for a 2D transducer array.

摘要翻译： 超声波换能器具有中心行频率的中心行，第一和第二外部换能器以与中心行频率相同的公共频率或不同频率工作。 在超声波换能器阵列的增强中，换能器的中心排具有匹配层，声学速度高于与第一外排和第二外排换能器相关联的匹配层。 可以选择匹配层，使得换能器阵列的总体厚度是恒定的。 在更高的中心频率和更低的外部频率下工作的1.5D超声波换能器阵列是可调节的，以允许高分辨率近场成像以及更好的远场成像，而不需要2D换能器阵列。