Ultrasonic flow velocity imaging systems with velocity image pre

Details Ultrasonic flow velocity imaging systems with velocity image pre Ultrasonic flow velocity imaging systems with velocity image pre

1991-11-21

1993-06-01

Howell, Kyle L.

Surgery

Truss

Pad

12866202, A61B 806

Patent

active

052150941

ABSTRACT:
An ultrasonic diagnostic imaging system is described which enhances the presentation of flow velocity images through asymmetric persistence of visually displayed changes in fluid velocity. Preferably the asymmetric persistence employs a shorter (i.e., faster) time constant for increases in fluid velocity and a longer (i.e., slower) time constant for decreases in fluid velocity. In a preferred embodiment of the present invention, increases in fluid velocity are displayed at their rate of occurrence, and decreases in fluid velocity are displayed with a longer, user-selectable time constant. In the preferred embodiment the persistence enhancement is determined as a function of displayed image frame rate so that the persistence time constant remains fixed as a function of time despite user changes affecting the frame rate.

REFERENCES:
patent: 4403184 (1983-09-01), Witt et al.
patent: 4509525 (1985-04-01), Seo
patent: 4794932 (1989-01-01), Baba
patent: 4800891 (1989-01-01), Kim
patent: 4850366 (1989-07-01), Ito et al.
patent: 4961427 (1990-10-01), Namekawa et al.
patent: 5123417 (1992-06-01), Walker et al.

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