Long-lasting aqueous dispersions or suspensions of pressure-resistant gas-filled microvesicles and methods for the preparation thereof
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United States of America Patent
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May 9, 1995
Grant Date -
N/A
app pub date -
Dec 16, 1992
filing date -
Jan 24, 1992
priority date (Note) -
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Abstract
One can impart outstanding resistance against collapse under pressure to gas-filled microvesicle used as contrast agents in ultrasonic echography by using as fillers gases whose solubility in water, expressed in liter of gas by liter of water under standard conditions, divided by the square root of the molecular weight does not exceed 0.003.
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