Methods of ultrasound treatment using gas or gaseous precursor-filled compositions
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United States of America Patent
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Apr 6, 2004
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app pub date -
Mar 21, 2001
filing date -
Sep 15, 1997
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Abstract
The present invention describes, among other things, the surprising discovery that gaseous precursor filled compositions are profoundly more effective as acoustically active contrast agents when they are thermally preactivated to temperatures at or above the boiling point of the instilled gaseous precursor prior to their in vivo administration to a patient. Further optimization of contrast enhancement is achieved by administering the gaseous precursor filled compositions to a patient as an infusion. Enhanced effectiveness is also achieved for ultrasound mediated targeting and drug delivery.
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