Ultrasonic image enhancement
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United States of America Patent
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-
Jul 7, 1981
Grant Date -
N/A
app pub date -
May 4, 1979
filing date -
May 4, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Ultrasonic images of flowing streams can provide important information regarding the streams. Herein, a plurality of microbubbles are provided in such streams to enhance such images, aid in tumor detection and treatment, provide mapping of vascularity of tissue masses and measure instantaneous blood flow rate. The preferred microbubbles have a coalescence resistant surface membrane encapsulating a gas of a selected composition, the membrane including non-toxic and non-antigenic organic molecules. Preferrably, the microbubbles have diameters in the 0.5 micron-300 micron range.
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