Point sensitive NMR imaging system using a magnetic field config

Details Point sensitive NMR imaging system using a magnetic field config Point sensitive NMR imaging system using a magnetic field config

1983-02-01

1985-12-03

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3308

Patent

active

045568480

ABSTRACT:
A point-sensitive NMR imaging system (10) in which a main solenoid coil (11) produces a relatively strong and substantially uniform magnetic field and a pair of perturbing coils (PZ1 and PZ2) powered by current in the same direction superimposes a pair of relatively weak perturbing fields on the main field to produce a resultant point of minimum field strength at a desired location in a direction along the Z-axis. Two other pairs of perturbing coils (PX1, PX2; PY1, PY2) superimpose relatively weak field gradients on the main field in directions along the X- and Y-axes to locate the minimum field point at a desired location in a plane normal to the Z-axes. An RF generator (22) irradiates a tissue specimen in the field with radio frequency energy so that desired nuclei in a small volume at the point of minimum field strength will resonate.

REFERENCES:
patent: 3932805 (1976-01-01), Abe
patent: 4015196 (1977-03-01), Moore et al.
patent: 4021726 (1977-05-01), Garroway
patent: 4070611 (1978-01-01), Ernst
patent: 4115730 (1978-09-01), Mansfield
patent: 4315216 (1982-02-01), Clow
patent: 4322684 (1982-03-01), Hounsfield
Damadian et al., "NMR in Cancer: XVI Fonar Image of the Live Human Body," Physiol. Chem. & Phys., 9, pp. 97-100, (1977).
Bornell et al., "Positron Tomography and Nuclear Magnetic Resonance Imaging", Science vol. 215, pp. 619-626, Feb. 5, 1982.
I. A. Pykett, "NMR Imaging in Medicine", pp. 78-88, Scientific Amer., May 1982.

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