公开(公告)号：DE69516816D1

公开(公告)日：2000-06-15

申请号：DE69516816

申请日：1995-11-29

Applicant: ADVANCED TECH LAB

Inventor： QUISTGAARD JENS ULRICH

IPC: G01N29/06 ,  A61B8/00 ,  A61B8/06 ,  G01S7/52 ,  G01S15/89 ,  G06T1/00 ,  A61B8/14

公开(公告)号：DE69514749D1

公开(公告)日：2000-03-02

申请号：DE69514749

申请日：1995-10-11

Applicant: ADVANCED TECH LAB

Inventor： RUST DAVID ,  ROUNDHILL DAVID N

IPC: G01N29/44 ,  A61B8/00 ,  G01S7/52 ,  G01S15/89 ,  G01S7/529

公开(公告)号：AT189588T

公开(公告)日：2000-02-15

申请号：AT93309307

申请日：1993-11-22

Applicant: ADVANCED TECH LAB

Inventor： NORDGREN TIMOTHY F ,  IMLING DEBORAH K ,  UNGARI JOSEPH L ,  KILLAM DONALD GILBERT ,  MCKEIGHEN RONALD E

IPC: A61B8/00 ,  A61B8/06 ,  A61B8/12 ,  H01R9/03 ,  G10K11/00

公开(公告)号：AT189315T

公开(公告)日：2000-02-15

申请号：AT95307169

申请日：1995-10-11

Applicant: ADVANCED TECH LAB

Inventor： RUST DAVID ,  ROUNDHILL DAVID N

IPC: G01N29/44 ,  A61B8/00 ,  G01S7/52 ,  G01S15/89 ,  G01S7/529

公开(公告)号：BR9801212A

公开(公告)日：1999-06-29

申请号：BR9801212

申请日：1998-03-30

Applicant: ADVANCED TECH LAB

Inventor： LITTLE BLAKE W ,  HWANG JUIN-JET ,  PFLUGRATH LAUREN S

IPC: G01N29/22 ,  A61B8/00 ,  A61B8/06 ,  A61B8/14 ,  G01N29/06 ,  G01S7/52 ,  G01S7/521 ,  G01S15/00 ,  G01S15/89 ,  G10K11/00 ,  G10K11/34 ,  A61N7/00

Abstract: A portable ultrasonic instrument which performs both B mode and Doppler imaging, includes a transducer array (10) mounted in a hand-held enclosure (81), with an integrated circuit transceiver (20) connected to the elements of the array just behind the transducer. The transceiver is controlled by, and provides received echo signals to, a digital beamformer (30) mounted in the hand-held enclosure (81).

公开(公告)号：CA2157313C

公开(公告)日：1999-01-12

申请号：CA2157313

申请日：1995-08-31

Applicant: ADVANCED TECH LAB

Inventor： SCHWARTZ GARY ALLEN ,  PESQUE PATRICK RENE ,  QUISTGAARD JENS ULRICH

IPC: A61B8/06 ,  A61B8/00 ,  A61B8/14 ,  G01B17/00 ,  G01S7/52 ,  G01S15/89 ,  G06T1/00 ,  A61B8/13

Abstract: An ultrasonic diagnostic system and scanning technique are described for producing three dimensional ultrasonic image displays utilizing power Doppler signal information. In a preferred embodiment the power Doppler signal information is displayed in the absence of structural (B mode) information to reduce image clutter and provide three dimensional image segmentation. An ultrasonic scanning technique is presented for acquiring diagnostic three dimensional ultrasonic images of power Doppler intensity through manual hand scanning of a patient, without the need for specially fabricated scanning mechanisms or devices.

公开(公告)号：NO982447L

公开(公告)日：1998-11-30

申请号：NO982447

申请日：1998-05-28

Applicant: ADVANCED TECH LAB

Inventor： CRITON ALINE LAURE ,  LOUPAS THANASIS

IPC: A61B8/06 ,  A61B8/08 ,  G01S7/52 ,  G01S15/89 ,  A61B8/14

Abstract: The method involves identifying the characteristics of a particular ultrasonic image line corresponding to that of a moving tissue. Then, the velocity of the image line is computed. Based on the computed velocity, the characteristics of the other image lines is evaluated.

公开(公告)号：NO981475L

公开(公告)日：1998-10-05

申请号：NO981475

申请日：1998-04-01

Applicant: ADVANCED TECH LAB

Inventor： LITTLE BLAKE ,  HWANG JUIN-JET ,  PFLUGRATH LAUREN S

IPC: A61B8/00 ,  G01N29/22 ,  A61B8/06 ,  A61B8/14 ,  G01N29/06 ,  G01S7/52 ,  G01S7/521 ,  G01S15/00 ,  G01S15/89 ,  G10K11/00 ,  G10K11/34

Abstract: A portable ultrasonic instrument which performs both B mode and Doppler imaging, includes a transducer array (10) mounted in a hand-held enclosure (81), with an integrated circuit transceiver (20) connected to the elements of the array just behind the transducer. The transceiver is controlled by, and provides received echo signals to, a digital beamformer (30) mounted in the hand-held enclosure (81).

公开(公告)号：IL123257D0

公开(公告)日：1998-09-24

申请号：IL12325798

申请日：1998-02-10

Applicant: ADVANCED TECH LAB ,  ATLANTIS DIAGNOSTIC INTERNATIO

IPC: A61B8/00 ,  G01S7/52 ,  G06T1/00 ,  A61B

Abstract: A method and apparatus are provided for interpolating image lines from ultrasonically obtained scanlines of an image region. The interpolated lines are preferably formed one-quarter and three-quarters of the distance between each pair of received scanlines by combining weighted samples of the adjacent scanlines in proportion to their distances from the interpolated lines. The received scanlines are preferably formed by a beamformer which samples the received lines at quadrature phases of the scanhead center frequency and filters the samples by combining successive samples of a related phase. The image lines are scan converted by computing a grid of weighted values between each pair of image lines, and using the closest value for each pixel in the ultrasound image.

公开(公告)号：DE69317697T2

公开(公告)日：1998-07-23

申请号：DE69317697

申请日：1993-06-01

Applicant: ADVANCED TECH LAB

Inventor： ROUTH HELEN FRANCES ,  PETERSON ROY BECK ,  POWRIE CHARLES WESLEY

IPC: A61B8/06 ,  G01P5/00 ,  G01S7/52 ,  G01S15/58 ,  G01S15/50

Abstract: A technique for continuously determining and displaying the peak and mean velocities of spectral Doppler information is disclosed. Received spectral Doppler data is examined over a predetermined period to determine the signal to noise ratio of the Doppler signals. Individual instantaneous measurements, or lines, of Doppler spectral information are analyzed in the power versus frequency domain to compare the line information against a noise threshold determined by the signal to noise ratio. The maximum frequency signal component is thereby identified as the peak velocity of the spectral line. Mean velocity is calculated as an intensity weighted mean about the maximum power frequency of the line data. The identified peak and mean velocities are displayed in contrasting colors or shades on a continuously updated and displayed flow velocity versus time spectral display.