Improvements on an in vivo automatic shimming method (FASTERMAP)

Magnetic Resonance in Medicine

Volumn 38, Issue 5, 1997, Pages 834-839

  Shen, Jun ^a   Rycyna, Robert E ^b   Rothman, Douglas L ^a  

^a YALE UNIVERSITY SCHOOL OF MEDICINE   (United States)

^b Bruker Instruments Inc   (United States)

Author keywords

Adiabatic pulse; Automatic shimming; Field mapping; Proton NMR

Indexed keywords

RELIABILITY ANALYSIS; SIGNAL TO NOISE RATIO;

ADIABATIC PULSE; AUTOMATIC SHIMMING; FIELD MAPPING; LINEAR PROJECTIONS; PROTON NMR; SCOPE OF APPLICATION; STIMULATED ECHOS; WEIGHTED POLYNOMIALS;

POLYNOMIAL REGRESSION;

ARTICLE; BRAIN; CALCULATION; HUMAN; MATHEMATICAL ANALYSIS; PROTON NUCLEAR MAGNETIC RESONANCE; SIGNAL NOISE RATIO;

EID: 0030726451     PISSN: 07403194     EISSN: None     Source Type: Journal    
DOI: 10.1002/mrm.1910380521     Document Type: Article

References (22)

1. o for spectroscopic: imaging. J. Magn. Reson. 85, 244-254 (1989).
2. o homogeneity of the heart in vivo. Magn. Reson. Med. 36, 375-383 (1996).
3. G. H. Glover, G. T. Gullberg, Magnet shimming using information derived from chemical shift imaging. U.S. Patent 4,740,753 (1988).
4. P. C. M. van Zijl, S. Sukumar, M. O'Neil Johnson, P. Webb, R. E. Hurd, Optimized shimming for high-resolution NMR using three-dimensional image-based field mapping. J. Magn. Reson. Series A 111, 203-207 (1994).
5. M. G. Prammer, J. C. Haselgrove, M. Shinnar, J. S. Leigh, A new approach to automatic shimming. J. Magn. Reson. 77, 40-52 (1988).
6. M. G. Prammer, J. C. Haselgrove, Device and method for automatic shimming of NMR instrument. U.S. Patent 4,761,614 (1988).
7. E. Schneider, G. H. Glover, Rapid in vivo proton shimming. Magn. Reson. Med. 18, 335-347 (1991).
8. G. H. Glover, E. Schneider, Method for in vivo shimming. U.S. Patent 4,987, 371 (1991).
9. G. H. Glover, E. Schneider, Method for rapid magnet shimming. U.S. Patent 5 168, 232 (1992).
10. P. Webb, A. Macovsky, Rapid, fully automatic, arbitrary volume in vivo shimming. Magn. Reson. Med. 20, 113-122 (1991).
11. A. Manabe, S. Kakimoto, and Y. Wada, Method for setting the current shim coils and gradient coils in a nuclear magnetic resonance apparatus. U.S. Patent 5,345,178 (1994).
12. R. Gruetter, C. Boesch, Fast, noninteractive shimming of spatially localized signals. In vivo analysis of the magnetic field along axes. J. Magn. Reson. 96, 323-334 (1992).
13. R. Gruetter, Automatic, localized in vivo adjustment of all first- and second-order shim coils. Mogn. Reson. Med. 29, 804-811 (1993).
14. S. Conolly, G. Glover, D. Nishimura, and A. Macovski, A reduced power selective adiabatic spin-echo pulse sequence. Magn. Reson. Med. 18, 28-38 (1991).
15. J. Frahm, K.-D. Merboldt, and W. Hanicke, Localized proton spectroscopy using stimulated echo. J. Magn. Reson. 72, 502-508 (1988).
16. N. R. Draper and H. Smith, "Applied Regression Analysis," John Wiley & Sons, Inc., New York, 1966.
17. A. Mababe, Method for shimming a magnetic field in an examination space of a nuclear resonance apparatus including use of fuzzy logic. U.S. Patent 5,592,091 (1997).
18. C. Boesch, R. Gruetter, E. Martin, Temporal and spatial analysis of fields generated by eddy currents in superconducting magnets: optimization of corrections and qualitative characterization of magnet/ gradient systems. Magn. Reson. Med. 20, 268-284 (1991).
19. A. Bax, V. Sklenar, G. M. Clore, A. M. Gronenborn, Water suppression in two- dimensional spin-locked nuclear magnetic resonance experiments using a novel phase- cycling procedure. J. Am. Chem. Soc. 109, 6511-6513 (1987).
20. R. Kimmich and D. Hopeful, Volume-selective multipulse spin-echo spectroscopy. J. Magn. Reson. 72, 379-384 (1987).
21. J, Shen, D. L. Rothman, Adiabatic slice-selective excitation for surface coils. J. Magn. Reson. 124, 72-79 (1997).
22. 1-insensitive, single-shot localization and water suppression. J. Magn. Reson. Series B 113, 35-45 (1996).