公开(公告)号：EP0702349B1

公开(公告)日：2003-01-15

申请号：EP95306513.3

申请日：1995-09-15

Applicant: ADVANCED TECHNOLOGY LABORATORIES, INC.

Inventor： Daigle, Ronald E.

IPC: G10K11/34

CPC classification number: G01S7/52095 ,  G10K11/345

公开(公告)号：EP0627635A3

公开(公告)日：1994-12-28

申请号：EP94202297.1

申请日：1991-07-18

Applicant: ADVANCED TECHNOLOGY LABORATORIES, INC.

Inventor： Daigle, Ronald E.

IPC: G01S15/89 ,  G01S7/52 ,  G10K11/34

CPC classification number: G01S7/52085 ,  G01S7/52063 ,  G01S15/8918 ,  G10K11/345

Abstract: An ultrasonic diagnostic imaging system is provided for scanning with a linear transducer array and displaying an image area which is truncated with respect to a conventional triangular image sector to take the form of a trapezoid. Uniformity of image resolution and ease of signal processing enhancement is provided by transmitting adjacent ultrasonic beams at equal angular increments over the sector area. The ultrasonic beams transmitted are focused around predetermined transmit focal points and the transmit aperture employed for each transmission is determined by a transducer sensitivity criterion applied to the focal point. Means are provided for delaying signal components received from the beam directions so that the sum of the components will form a coherent echo signal. Means are provided for dynamically focusing received signal components by dynamically varying the sampling frequencies of laterally disposed signal components, and the receive aperture is dynamically varied in correspondence with the number of array elements which satisfy a sensitivity criterion at different depths of field.

公开(公告)号：EP0467690A3

公开(公告)日：1992-12-02

申请号：EP91306571.0

申请日：1991-07-18

Applicant: ADVANCED TECHNOLOGY LABORATORIES, INC.

Inventor： Daigle, Ronald E.

IPC: G01S15/89 ,  G01S7/52 ,  G10K11/34

CPC classification number: G01S7/52085 ,  G01S7/52063 ,  G01S15/8918 ,  G10K11/345

Abstract: An ultrasonic diagnostic imaging system is provided for scanning with a linear transducer array and displaying an image area which is truncated with respect to a conventional triangular image sector to take the form of a trapezoid. Uniformity of image resolution and ease of signal processing enhancement is provided by transmitting adjacent ultrasonic beams at equal angular increments over the sector area. The ultrasonic beams transmitted are focused around predetermined transmit focal points and the transmit aperture employed for each transmission is determined by a transducer sensitivity criterion applied to the focal point. Means are provided for delaying signal components received from the beam directions so that the sum of the components will form a coherent echo signal. Means are provided for dynamically focusing received signal components by dynamically focusing received signal components by dynamically varying the sampling frequencies of laterally disposed signal components, and the receive aperture is dynamically varied in correspondence with the number of array elements which satisfy a sensitivity criterion at different depths of field.

公开(公告)号：EP0487339A1

公开(公告)日：1992-05-27

申请号：EP91310726.4

申请日：1991-11-21

Applicant: ADVANCED TECHNOLOGY LABORATORIES, INC.

Inventor： Keller, Philip ,  Augustine, Larry J. ,  Daigle, Ronald E.

IPC: A61B8/00 ,  A61B8/08

CPC classification number: G01S15/8993 ,  A61B8/14 ,  A61B8/4254 ,  A61B8/483 ,  G01N2291/02827 ,  G01S15/8936 ,  G01S15/899 ,  Y10S128/916

Abstract: An ultrasonic imaging system is disclosed which produces a sequence of images of planes of a subject including both image and spatial positional information of the image plane. In one embodiment the positional information is developed from a plurality of accelerometers located within a scanhead. The second integrals of the acceleration signals are used to determine positional information of the image plane. In a second embodiment a tranmitter transmits a magnetic field and a receiver attached to the scanhead detects the position of the scanhead in relation to the transmitted magnetic field. Spatially related images are displayed by displaying one image plane in the plane of the display and a second image plane projected in relation thereto. Either of the displayed planes may be displayed in outline form, and the outline may be modulated to depict depth.

Abstract translation: 公开了一种超声波成像系统，其产生包括图像平面的图像和空间位置信息的被摄体平面的图像序列。 在一个实施例中，从位于扫描头内的多个加速度计显影位置信息。 加速度信号的第二积分用于确定图像平面的位置信息。 在第二实施例中，发射器发射磁场，并且附接到扫描头的接收器相对于所发射的磁场检测扫描头的位置。 通过在显示器的平面中显示一个图像平面和相对于其投影的第二图像平面来显示空间相关的图像。 显示的平面中的任一个可以以轮廓形式显示，并且轮廓可以被调制以描绘深度。