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:
Jan. 25, 1994
Filed:
Aug. 09, 1991
Thomas E Conturo, Baltimore, MD (US);
Bruce H Robinson, Seattle, WA (US);
The Johns Hopkins University, Baltimore, MD (US);
Abstract
A method of vector magnetic resonance measuring and imaging and associated apparatus provide for a specimen being placed in a main magnetic field, RF pulses being impinged thereon, and magnetic field gradients being superimposed thereupon, preferably with three input gradient pulses being impinged preferably simultaneously to construct a balanced system of four gradient vectors having equally strong moments Four cycles of such input gradient pulses are employed to create four magnetic gradient moments from which velocity or motion vectors are created. A receiver obtains signals from a specimen and converts them into information which is introduced into a computer. The computer converts the signals sensitized by the gradient vector moments into motional-type vector information which can be measured and imaged. Different approaches may be taken for low velocity and high velocity usages. In the latter case, as well as others, a null acquisition which does not substantially adversely affect the signal-to-noise ratio may be employed.