Method of and device for determining a nuclear magnetization dis

Details Method of and device for determining a nuclear magnetization dis Method of and device for determining a nuclear magnetization dis

1982-12-08

1985-07-02

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3308

Patent

active

045271240

ABSTRACT:
The invention proposes a method and a device in which resonance signals (generated for NMR imaging) are sampled in the presence of a (semi-) static and a time modulated gradient magnetic field, the gradient direction of the fields applied being mutually perpendicular. The resonance signal is conditioned prior to the start of sampling. The sampled signals are associated with spatial frequencies (i.e. points in a spatial frequency space (k.sub.x, k.sub.y) which is the (2-D) Fourier transform of the actual (x, y) space), which are determined by the applied gradient fields. The (semi-) static gradient field always produces an increase (for example, in k.sub.x), while the time modulated gradient field always produces an image frequency which lies between two limits (k.sub.y and k.sub.y +k.sub.y). Consequently, the invention enables the determination of data in an entire band in the (k.sub.x, k.sub.y) space; this is in contrast with the present state of the art (DE 26.11.497) where data can be collected only along a straight line (k.sub.x or k.sub.y is constant), or on the entire region of interest (the total k.sub.x , k.sub.y space). The method and device according to the invention are also applicable for 3-D imaging of 3-D objects.

REFERENCES:
patent: 4115730 (1978-09-01), Mansfield
patent: 4290019 (1981-09-01), Hutchison
patent: 4297637 (1981-10-01), Crooks
patent: 4300096 (1981-11-01), Harrison
patent: 4318043 (1982-03-01), Crooks
patent: 4431968 (1984-02-01), Edelstein

Affiliated with

Also associated with

Rating

Method of and device for determining a nuclear magnetization dis 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 of and device for determining a nuclear magnetization dis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and device for determining a nuclear magnetization dis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-383758