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1.发明授权
公开(公告)号：US6048312A
公开(公告)日：2000-04-11
申请号：US139373
申请日：1998-08-25
申请人： Syed Omar Ishrak , Mir Said Seyed-Bolorforosh , William Thomas Hatfield , Todd Michael Tillman , Brian Peter Geiser , Gregory R. Bashford , Michael Joseph Washburn
发明人： Syed Omar Ishrak , Mir Said Seyed-Bolorforosh , William Thomas Hatfield , Todd Michael Tillman , Brian Peter Geiser , Gregory R. Bashford , Michael Joseph Washburn
CPC分类号： G01S15/8993 , A61B8/0833 , A61B8/0841 , A61B8/483 , G01S15/8979 , G01S15/8988 , G01S7/52034 , G01S7/52046 , G01S7/5206 , G01S7/52069 , G01S7/52071 , G01S7/52074 , Y10S128/916
摘要： A method and an apparatus for three-dimensional ultrasound imaging of a needle-like instrument, such as a biopsy needle, inserted in a human body. The instrument is visualized by transmitting ultrasound beams toward the instrument and then detecting the echo signals using a linear array of transducer elements. The problem of ultrasound being reflected from a biopsy needle in a direction away from the transducer array is solved by steering the transmitted ultrasound beams to increase the angle at which the beams impinge upon the biopsy needle. Ideally the ultrasound beams are perpendicular to the biopsy needle. This increases the system's sensitivity to the needle because the reflections from the needle are directed closer to the transducer array. This can be accomplished using either the B mode or the color flow mode of an ultrasound imaging system. The acquired data for multiple two-dimensional image frames is gathered in memory to form a data volume, which is then processed to form a three-dimensional image (by projection) or a two-dimensional slice taken at an angle through the data volume. In particular, a two-dimensional slice which is coplanar with the inserted biopsy needle can be imaged.
摘要翻译： 一种插入人体的针状器械（例如活检针）的三维超声成像的方法和装置。 通过向仪器发射超声波束，然后使用换能器元件的线性阵列检测回波信号来显示仪器。 通过转向透射的超声波束来增加横梁撞击活检针的角度来解决超声波在远离换能器阵列的方向从活检针反射的问题。 理想情况下，超声波束与活检针垂直。 这增加了系统对针的敏感性，因为来自针的反射更靠近换能器阵列。 这可以使用超声成像系统的B模式或彩色流动模式来实现。 用于多个二维图像帧的采集的数据被收集在存储器中以形成数据量，然后将其处理以形成通过数据量以一定角度拍摄的三维图像（通过投影）或二维切片。 特别地，可以对与插入的活检针共面的二维切片进行成像。
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公开(公告)号：US5677491A
公开(公告)日：1997-10-14
申请号：US645050
申请日：1996-05-14
CPC分类号： G10K11/32 , A61B8/4483 , A61B8/4494 , G01S15/8927 , G10K11/34 , A61B8/12 , A61B8/4488
摘要： A two-dimensional ultrasonic transducer for forming images. The transducer has a plurality of transducer elements for producing ultrasonic bursts in a predetermined manner, and receiving reflected ultrasound from the subject under examination due to the ultrasonic bursts. The plurality of transducer elements are arranged in an array into columns and rows, the columns of the transducer elements arranged in a scanning plane for scanning the subject under examination in order to form a two-dimensional profile of the subject, and the rows of the transducer elements having groups of symmetrically arranged transducer elements being oriented in a elevational plane. Each of the groups of symmetrically arranged transducer elements are mechanically arranged to have a focus at specified locations distant from the transducer which is within the subject under examination. Each of the groups of symmetrically arranged transducer elements coupled to a conductive channels for activating the group of symmetrically arranged transducer elements simultaneously to focus one of the ultrasonic bursts at the specified location from the transducer, and receive signals from the transducer elements due to received ultrasonic echoes due to the ultrasonic bursts. In certain embodiments, the mechanical arrangement of the groups of transducers comprises a lens affixed to the transducer elements in order to focus the ultrasonic bursts at the specified locations.
摘要翻译： 一种用于形成图像的二维超声波换能器。 换能器具有用于以预定方式产生超声波脉冲串的多个换能器元件，并且由于超声波脉冲而从被检查对象接收反射的超声波。 多个换能器元件以阵列排列成列和列，换能器元件的列布置在扫描平面中，用于扫描检查对象，以形成被检体的二维轮廓，并且 具有对称布置的换能器元件组的换能器元件在高度平面中定向。 对称布置的换能器元件中的每一组被机械地布置成在远离检查对象内的换能器的指定位置处具有焦点。 耦合到导电通道的每组对称布置的换能器元件，用于同时激活一组对称布置的换能器元件，以将来自换能器的指定位置处的超声波脉冲串中的一个聚焦，并且由于接收的超声波接收来自换能器元件的信号 由于超声波爆发而回波。 在某些实施例中，换能器组的机械布置包括固定到换能器元件的透镜，以便将超声波脉冲串聚焦在指定位置。
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公开(公告)号：US5922962A
公开(公告)日：1999-07-13
申请号：US743467
申请日：1996-11-04
CPC分类号： G10K11/32 , A61B8/4483 , A61B8/4494 , G01S15/8927 , G10K11/34 , A61B8/12 , A61B8/4488
摘要： A two-dimensional ultrasonic transducer for forming images. The transducer has a plurality of transducer elements for producing ultrasonic bursts in a predetermined manner, and receiving reflected ultrasound from the subject under examination due to the ultrasonic bursts. The plurality of transducer elements are arranged in an array into columns and rows, the columns of the transducer elements arranged in a scanning plane for scanning the subject under examination in order to form a two-dimensional profile of the subject, and the rows of the transducer elements having groups of symmetrically arranged transducer elements being oriented in a elevational plane. Each of the groups of symmetrically arranged transducer elements are mechanically arranged to have a focus at specified locations distant from the transducer which is within the subject under examination. Each of the groups of symmetrically arranged transducer elements coupled to a conductive channels for activating the group of symmetrically arranged transducer elements simultaneously to focus one of the ultrasonic bursts at the specified location from the transducer, and receive signals from the transducer elements due to received ultrasonic echoes due to the ultrasonic bursts. In certain embodiments, the mechanical arrangement of the groups of transducers comprises a lens affixed to the transducer elements in order to focus the ultrasonic bursts at the specified locations.
摘要翻译： 一种用于形成图像的二维超声波换能器。 换能器具有用于以预定方式产生超声波脉冲串的多个换能器元件，并且由于超声波脉冲而从被检查对象接收反射的超声波。 多个换能器元件以阵列排列成列和列，换能器元件的列布置在扫描平面中，用于扫描检查对象，以形成被检体的二维轮廓，并且 具有对称布置的换能器元件组的换能器元件在高度平面中定向。 对称布置的换能器元件中的每一组被机械地布置成在远离检查对象内的换能器的指定位置处具有焦点。 耦合到导电通道的每组对称布置的换能器元件，用于同时激活一组对称布置的换能器元件，以将来自换能器的指定位置处的超声波脉冲串中的一个聚焦，并且由于接收的超声波接收来自换能器元件的信号 由于超声波爆发而回波。 在某些实施例中，换能器组的机械布置包括固定到换能器元件的透镜，以便将超声波脉冲串聚焦在指定位置。
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