Color flow display with compensation for flow direction

Details Color flow display with compensation for flow direction Color flow display with compensation for flow direction

1995-12-21

1997-04-22

Manuel, George

Surgery

Truss

Pad

A61B 800

Patent

active

056221738

ABSTRACT:
An ultrasound imaging system includes a display for displaying an ultrasound image and a transducer for transmitting a linear ultrasound beam which is steerable between positive and negative beam angles about an intermediate azimuth which extends from an emitting face of the transducer. A user input control provides steering signals to cause the transducer to alter the direction angle of transmission of the ultrasound beam. A processor controls the display to produce an image evidencing a first attribute of fluid flowing in a direction towards the transducer and an image with a second attribute of fluid flowing in a direction away from the transducer. The processor is responsive to a steering signal which causes the ultrasound beam to move from one side to the other side of the intermediate azimuth to display the image of fluid flowing in a direction towards the transducer with the second attribute and the image of fluid flowing in a direction away from the transducer with the first attribute. Similarly, the attributes, as displayed by a color bar, are reversed at the same time to be in accordance with the changed blood flow coloration.

REFERENCES:
patent: 4926872 (1990-05-01), Brock-Fisher et al.
patent: 5165413 (1992-11-01), Maslak et al.
patent: 5315999 (1994-05-01), Kinicki et al.
patent: 5373848 (1994-12-01), Melton, Jr. et al.
patent: 5409010 (1995-04-01), Beach et al.
patent: 5441052 (1995-08-01), Miyajima
IEE Transactions on Biomedical Engineering, vol. BME-30, No. 8, Aug. 1993, Von Ramm et al.--`Beam Steering with Linear Arrays` (pp. 438-452).

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