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:
Jun. 12, 2001
Filed:
Dec. 18, 1998
Applicant:
Inventor:
Donald B. Plewes, Toronto, CA;
Assignee:
Sunnybrook Health Science Centre, Toronto, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/055 ;
U.S. Cl.
CPC ...
A61B 5/055 ;
Abstract
An MRI system is employed to produce an image of an ultrasonic wave propagating through tissue or the like. An imaging pulse sequence used to acquire the image data is performed in synchronism with the operation of an ultrasonic transducer, and reconstructed phase images measure the motion of excited spins. Physical parameters of the acoustic field such as acoustic pressure, acoustic intensity and wave number may be calculated and imaged. Non-linear propagation characteristics of the acoustic field are also measured and imaged.