Practical Aspects of Birdcage Coils

Journal of Magnetic Resonance

Volumn 138, Issue 1, 1999, Pages 144-154

  Doty, F David ^a   Entzminger Jr , George ^a   Hauck, Cory D ^a   Staab, John P ^a  

^a Doty Scientific Inc   (United States)

Author keywords

Birdcage; Coils; Filling factor; Inhomogeneity; Microscopy

Indexed keywords

ARTICLE; COMPUTER PROGRAM; EQUIPMENT DESIGN; HUMAN; IMAGE PROCESSING; IMAGE QUALITY; INSTRUMENTATION; MICROSCOPY; NUCLEAR MAGNETIC RESONANCE IMAGING; THEORETICAL MODEL;

EQUIPMENT DESIGN; HUMANS; IMAGE PROCESSING, COMPUTER-ASSISTED; MAGNETIC RESONANCE IMAGING; MICROSCOPY; MODELS, THEORETICAL; PHANTOMS, IMAGING; SOFTWARE;

EID: 0033128872     PISSN: 10907807     EISSN: None     Source Type: Journal    
DOI: 10.1006/jmre.1998.1703     Document Type: Article

References (28)

1. C. E. Hayes, W. A. Edelstein, J. F. Schenck, O. M. Mueller, and M. Eash, An efficient highly homogeneous radiofrequency coil for whole-body NMR imaging at 1.5 T, J. Magn. Reson. 63, 622-628 (1985).
2. W. A. Edelstein, J. F. Schenck, O. M. Mueller, and C. E. Hayes, Radio frequency field coil for NMR, U.S. Patent 4,680,548 (1987).
3. J. W. Carlson, Radiofrequency field propagation in conductive NMR samples, J. Magn. Reson. 78, 563-573 (1988).
4. J. Tropp, The theory of an arbitrarily perturbed bird-cage resonator, and a simple method for restoring it to full symmetry, J. Magn. Reson. 95, 235-243 (1991).
5. 1 fields in three dimensions. Effects of shield geometry on field strength and homogeneity in the birdcage coil, J. Magn. Reson. 125, 233-241 (1997).
6. J. M. Jin and J. Chen, On the SAR and field inhomogeneity of birdcage coils loaded with the human head, Magn. Reson. Med. 38, 953-963 (1997).
7. C. P. Poole, "Electron Spin Resonance, a Comprehensive Treatise on Experimental Techniques," Interscience, New York (1967).
8. M. C. Leifer, Theory of the quadrature elliptic birdcage coil, Magn. Reson. Med. 38, 767-732 (1997).
9. "EMAS 4," Ansoft, Pittsburgh, PA; "Opera," Vector Fields, Aurora, IL, or Oxford, UK.
10. W. U. Roffmann, S. Crozier, K. Luescher, and D. M. Doddrell, Small birdcage resonators for high-field NMR microscopy, J. Magn. Reson. B 111, 174-177 (1996).
11. F. D. Doty, Probe design and construction, in "Encyclopedia of NMR," Vol. 6, Wiley, New York (1996).
12. L. F. Fuks and W. A. Anderson, Perturbation method for finding the RF field on an NMR probe, poster presented at Experimental NMR Conference, Orlando (1997).
13. A. Macovski, Noise in MRI, Magn. Reson. Med. 36, 494-497 (1996).
14. J. T. Vaughan, H. P. Hetherington, J. O. Otu, J. W. Pan, and G. M. Pohost, High frequency volume coils for clinical NMR imaging and spectroscopy, Magn. Reson. Med. 32, 206-218 (1994).
15. S. Crozier, K. Luescher, L. K. Forbes, and D. M. Doddrell, Optimized small-bore, high-pass resonator designs, J. Magn. Reson. B 109, 1-11 (1995).
16. F. D. Doty, G. Entzminger, and Y. A. Yang, Magnetism in HR NMR probe design. I. General methods, Concepts Magn. Reson. 10, 133-156 (1998).
17. F. D. Doty, Optimization of MRI gradient coils in "Spatially Resolved Magnetic Resonance" (P. Blumler, B. Blumich, R. E. Botto, and E. Fukushima, Eds.), Wiley-VCH, Weinheim (1998).
18. F. D. Doty, T. J. Connick, X. Z. Ni, and M. N. Clingan, Noise in high power, high frequency double tuned probes, J. Magn. Reson. 77, 536-549 (1988).
19. J. S. Tropp, Method of correcting an asymmetry in an NMR radio frequency coil and an improved radio frequency coil having N-fold symmetry and reduced eddy current, U.S. Patent 5, 196, 797 (1993).
20. J. S. Tropp, Mutual inductance in the birdcage resonator, J. Magn. Reson. 126, 9-17 (1997).
21. ARRL Radio Designer 1.5, formerly Compact Software Inc., Patterson NJ, recently acquired by Ansoft, Pittsburgh, PA.
22. C. L. Chin, C. M. Collins, S. Li, B. J. Dardzinski, M. B. Smith, BirdcagBuilder V1.0, Copyright Center for NMR Research, Department of Radiology, Penn State Univ. College of Medicine, Hershey, PA (1998).
23. C. E. Hayes, Birdcage and other high homogeneity RF coils for MR, in "Encyclopedia of NMR," Vol. 6, Wiley, New York (1996).
24. C. L Chin, S. Li, C. M. Collins, and M. B. Smith, Mutual inductance calculations between end-ring segments for elliptical birdcage coils, Magn. Reson. Med. 37, 600-608 (1997).
25. J. R. Fitzsimmons, B. L. Beck, and H. R. Brooker, Double resonant quadrature birdcage, Magn. Reson. Med. 30, 107-114 (1993).
26. L. L. Wald, L. Carvajal, S. E. Moyher, S. J. Nelso, P. E. Gran, A. J. Barkovich, and D. B. Vigneron, Phased array detectors and an automated intensity-correction algorithm for high-resolution MRI of the human brain, Magn. Reson. Med. 34, 433-439 (1995).
27. O. Ocali and E. Atalar, Ultimate intrinsic signal-to-noise ratio in MRI, Magn. Reson. Med. 39, 462-473 (1998).
28. F. D. Doty, Low inductance transverse Litz foil coils, patents pending, PCT No. WO 97/26560 (1997).