The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2003
Filed:
Feb. 14, 2000
Applicant:
Inventors:
Jonny Østensen, Oslo, NO;
Morten Eriksen, Oslo, NO;
Audun Tornes, Oslo, NO;
Sigmund Frigstad, Trondheim, NO;
Assignee:
Amersham Health AS, Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 8/14 ;
U.S. Cl.
CPC ...
A61B 8/14 ;
Abstract
Ultrasound imaging using gas microbubble-containing contrast agents may be performed in the recirculating phase following admixture of the contrast agent with the blood pool, thereby prolonging the useful imaging time window compared to that conventionally obtained during the backscatter signal peak resulting from first pass of a contrast agent bolus. The length of the time window may further be increased by imaging at ultrasound frequencies of 2 MHz or less, particularly by harmonic imaging at transmit frequencies less than the resonance frequencies of the gas microbubbles.