公开(公告)号：DE69807575D1

公开(公告)日：2002-10-10

申请号：DE69807575

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 ,  G01S15/50

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：NO992323L

公开(公告)日：1999-11-15

申请号：NO992323

申请日：1999-05-12

Applicant: ADVANCED TECH LAB

Inventor： CRITON ALINE LAURE ,  ROBINSON MARSHALL TAYLOR ,  LOUPAS THANASIS ,  PETERSON ROY BECK ,  PESQUE PATRICK RENE ,  ROUTH HELEN F

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

Abstract: An ultrasonic diagnostic imaging system and method are described by which a fundamental frequency signal is transmitted into the body and harmonic (nonlinear) echo returns are received from the transmission. The harmonic echo signals are Doppler processed and displayed. The harmonic Doppler signals may be displayed alone, or in combination with a fundamental frequency or harmonic grayscale image. In a preferred embodiment harmonic signals returned from moving tissue are segmented on an intensity or frequency basis and displayed. The inventive apparatus and method provide highly resolved ultrasonic images of moving tissue which are substantially unobscured by image clutter from structures or tissue in the near field.

公开(公告)号：NO992323D0

公开(公告)日：1999-05-12

申请号：NO992323

申请日：1999-05-12

Applicant: ADVANCED TECH LAB

Inventor： CRITON ALINE LAURE ,  ROBINSON MARSHALL TAYLOR ,  LOUPAS THANASIS ,  PETERSON ROY BECK ,  PESQUE PATRICK RENU ,  ROUTH HELEN F

IPC: A61B8/06 ,  A61B8/08 ,  G01S7/52 ,  G01S15/89 ,  A61B

Abstract: An ultrasonic diagnostic imaging system and method are described by which a fundamental frequency signal is transmitted into the body and harmonic (nonlinear) echo returns are received from the transmission. The harmonic echo signals are Doppler processed and displayed. The harmonic Doppler signals may be displayed alone, or in combination with a fundamental frequency or harmonic grayscale image. In a preferred embodiment harmonic signals returned from moving tissue are segmented on an intensity or frequency basis and displayed. The inventive apparatus and method provide highly resolved ultrasonic images of moving tissue which are substantially unobscured by image clutter from structures or tissue in the near field.