Improvements in or relating to contrast agents

Details Improvements in or relating to contrast agents Improvements in or relating to contrast agents

A - Human Necessities

61

K

A61K 49/00 (2006.01) A61K 49/18 (2006.01) A61K 49/22 (2006.01)

Patent

CA 2130670

2130670 9317718 PCTABS00025 Contrast agents comprising gas-containing or gas-generating polymer microparticles and/or microballoons, in which the polymer is a biodegradable polymer containing units of formula -[-(O)m-CO-O-C(R1R2)-O-CO-(O)n-]- (wherein R1 and R2 each represent hydrogen or a carbon-attached monovalent organic groups or together form a carbon-attached divalent organic group, and m and n are each independently zero or one) may be used in diagnostic applications such as ultrasounds and MR imaging.

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