Method for simultaneously obtaining three-dimensional NMR angiog

Details Method for simultaneously obtaining three-dimensional NMR angiog Method for simultaneously obtaining three-dimensional NMR angiog

1988-12-23

1990-04-17

Williams, Hezron E.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324314, G01R 3320

Patent

active

049183869

ABSTRACT:
A method for simultaneously obtaining a three-dimensional nuclear magnetic resonance (NMR) angiographic image of moving spins associated with fluid flow in a region of a living organism sample, and a three-dimensional NMR image of stationary tissue in the same sample region, by immersing the sample in a main static magnetic field; nutating, in an excitation subsequence of each of a plurality of NMR sequences, the nuclear spins and the generating a flow-encoding magnetic field gradient selected to cause a resulting NMR response echo signal from the spin of a moving nucleus to be different from the NMR response echo signal from the spin of a substantially stationary nucleus. The acquired response data is processed to provide at least one of (1) a difference data set from which response data obtained from stationary nuclei has been substantially removed, (2) a summation data set from which response data obtained from moving nuclei has been substantially removed, and (3) a set of phase data indicating direction of flow for flow amplitudes obtained in set (1), in order to generate both an angiographic image lying in a selected plane in a three-dimensional volume, and an image of stationary tissue in the same plane.

REFERENCES:
patent: 4595879 (1986-06-01), Lent et al.
patent: 4609872 (1986-09-01), O'Donnell
patent: 4689560 (1987-08-01), Nayler et al.
patent: 4714081 (1987-12-01), Dumoulin et al.

Affiliated with

Also associated with

Rating

Method for simultaneously obtaining three-dimensional NMR angiog does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for simultaneously obtaining three-dimensional NMR angiog, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for simultaneously obtaining three-dimensional NMR angiog will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1055209