US Patent No: 4,568,880

Number of patents in Portfolio can not be more than 2000

Diagnostic apparatus for utilizing nuclear magnetic resonance

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Abstract

In a apparatus for examining an object by nuclear magnetic resonance to produce images of cross-sectional slices of the object, it necessarily requires to have "a wait time" so as to repeat the applications of the RF pulses toward a plurality of such slices during one examination cycle. A plurality of coil pairs is arranged along the longitudinal axis of the object, and each pair is selectively energized so as to apply to the plurality of slices one of a plurality of gradient fields in conjunction with the steady magnetic field. A plurality of nuclear magnetic resonance signals may be obtained from a plurality of slices during one examination cycle.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TOKYO SHIBAURA DENKI KABUSHIKI KAISHAKAWASAKI2916

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sugimoto, Hiroshi Fuchu, JP 115 802

Cited Art

Patent Info (Count) # Cites Year
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
4,318,043 Method and apparatus for rapid NMR imaging of nuclear densities within an object 78 1980

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (7)
4,796,635 Multiple-echo, multiple-view NMR angiography 29 1987
4,994,965 Method for reducing motion induced image artifacts in projection imaging 51 1988
5,038,783 Multiple gradient echo pulse sequence for acquisition of NMR angiograms 14 1990
5,025,788 Method of acquiring NMR angiograms in selected flow component directions 8 1990
5,022,398 Multiple-echo NMR angiography for enhancement of signal-to noise ratio 7 1990
5,038,784 Multiple-echo angiography with enhanced signal-to-noise ratio 16 1990
5,022,397 Multiple-echo NMR angiography with multiple-velocity images 14 1991
 
BRUKER INSTRUMENTS, INC. (1)
5,323,113 NMR probe which includes B1, gradient coils 17 1993
 
GENERAL ELECTRIC MEDICAL SYSTEMS ISRAEL LTD., AN ISRAEL CORPORATION AFFILIATED WITH GENERAL ELECTRIC COMPANY (1)
4,832,037 Multi-region in-vivo magnetic resonance spectroscopy 11 1988
 
OXFORD INSTRUMENTS SUPERCONDUCTIVITY LIMITED (1)
4,985,679 Magnet assembly 9 1989
 
SIEMENS AKTIENGESELLSCHAFT (1)
4,644,282 Apparatus for the formation of images of an examination subject with nuclear magnetic resonance 4 1984
 
SRI INTERNATIONAL (1)
5,154,178 Method and apparatus for obtaining in-vivo NMR data from a moving subject 42 1990
 
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY (1)
4,760,336 Variable rate magnetic resonance selective excitation for reducing rf power and specific absorption rate 7 1987
 
YOKOGAWA ELECTRIC CORPORATION (1)
4,651,097 Examination method and apparatus utilizing nuclear magnetic resonance 13 1984