Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1994-04-25
1996-05-14
O'Shea, Sandra L.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
G01R 3348
Patent
active
055171184
ABSTRACT:
A method for using a remotely positionable MRI device to construct an image of a slice of in situ biological tissue includes creating and combining NMR images of subslices of the total slice of tissue to be imaged. More specifically, with the device positioned to record nuclei spin echoes from the slice of tissue to be imaged, the slice is divided into n different subslices and these subslices are imaged using a particular Larmor frequency for each subslice. In accordance with the present invention, n is an integer having a value less than T.sub.1 /T.sub.2, where T.sub.1 is the spin lattice relaxation time of the nuclei being imaged and T.sub.2 is the spin-spin relaxation time of the nuclei being imaged (n is approximately equal to 10). All n subslice images are then combined to create the image for the slice.
REFERENCES:
patent: 4296378 (1981-10-01), King
patent: 4379262 (1983-04-01), Young
patent: 4471306 (1984-09-01), Edelstein
patent: 4521733 (1985-06-01), Bottomley
patent: 4542343 (1985-09-01), Brown
patent: 4656425 (1987-04-01), Bendel
patent: 4684891 (1987-08-01), Feinberg
patent: 4721914 (1988-01-01), Fukushima
patent: 4972148 (1990-11-01), Jensen
patent: 5023554 (1991-06-01), Cho
patent: 5045794 (1991-09-01), Dorri
patent: 5144241 (1992-09-01), Oppelt
patent: 5164696 (1992-11-01), Kotani
patent: 5166619 (1992-11-01), Ries
patent: 5167232 (1992-12-01), Parker et al.
patent: 5241271 (1993-08-01), Taguchi et al.
patent: 5304930 (1994-04-01), Crowley
patent: 5315249 (1994-05-01), Le Roux et al.
Ultra-Fast Imaging, Mark S. Cohen and Robert M. Weisskoff, Magnetic Resonance Imaging, vol. 9, pp. 1-37, 1991.
Nuclear Magnetic Resonance Microscopy with 4-um Resolution: Theoretical Study and Esperimental Results, Z. H. Cho, C. B. Ahn, S. C. Juh, H. K. Lee, R. E. Jacobs, S. Lee, J. H. Yi, J. M. Jo, Medical Physics, vol. 15, No. 6, Nov./Dec. 1988.
Removal of Static Field Inhomogeneity and Chemical-Shift Effects in NMR Imaging, J. B. Miller and A. N. Garroway, Journal of Magnetic Resonance 67, 575-579, 1986.
Spin-Inversion Imaging: A Technique for NMR Imaging Under Magnetic Fields with High Field Nonuniformities, Tak Sum Wong and Dov Rosenfeld, IEEE Transactions on Medical Imaging, vol. MI-6, No. 2, Jun. 1987.
Echo Projection Imaging--A Method to Obtain NMR Images Undistorted by Magnet Field Inhomogeneities, Peter Bendel, IEEE Transactions on Medical Imaging, vol. MI-4, No. 2, Jun. 1985.
New, Compensated Carr-Purcell Sequences, Terry Gullion, Journal of Magnetic Resonance 89, 479-484, 1990.
Fast-Scan Magnetic Resonance: Principles and Applications, Felix W. Wehrli, Magnetic Resonance Quarterly, vol. 6, No. 3, pp. 165-236, 1990.
Crowley Christopher W.
Rose, Jr. Freeman H.
Mah Raymond Y.
O'Shea Sandra L.
Panacea Medical Laboratories
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