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. 23, 2002
Filed:
Dec. 11, 2000
Applicant:
Inventors:
Frederic Louis Lizzi, Tenafly, NJ (US);
Cheri Xiaoyu Deng, Edison, NJ (US);
Assignee:
Riverside Research Institute, New York State, US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 8/14 ;
U.S. Cl.
CPC ...
A61B 8/14 ;
Abstract
The concentration and/or radii of a contrast agent in a fluid can be estimated by acquiring ultrasound spectral data, performing spectral analysis to generate a linear estimation of the power spectrum, and correlating at least one spectral parameter to a predetermined distribution function for the contrast agent. If the mean radius squared of particles is known, then the concentration of contrast agent particles can be calculated. If the concentration is constant, then relative variations in mean radius squared can be determined.