A microstrip helmet coil for human brain imaging at high magnetic fields

Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering

Volumn 33, Issue 2, 2008, Pages 94-108

  Driesel, Wolfgang ^a   Mildner, Toralf ^a   Möller, Harald E ^a  

^a MAX PLANCK INSTITUTE FOR HUMAN COGNITIVE AND BRAIN SCIENCES   (Germany)

Author keywords

Helmet coil; Microstrip transmission line; Parallel imaging; Radiofrequency field homogeneity; Radiofrequency field polarization; Specific absorption rate; Transceive phased array

Indexed keywords

EID: 54949139999     PISSN: 15525031     EISSN: 1552504X     Source Type: Journal    
DOI: 10.1002/cmr.b.20109     Document Type: Article

References (37)

1. Boskamp EB. A new revolution in surface coil technology: the array surface coil. In: Proceedings of the 6th Annual Meeting of SMRM, New York, NY, USA, 1987. p 405.
2. Roemer PB, Edelstein WA, Hayes CE, Souza SP, Mueller OM. 1990. The NMR phased array. Magn Reson Med 16:192-225.
3. Sodickson DK, Manning WJ. 1997. Simultaneous acquisition of spatial harmonics (SMASH): fast imaging with radiofrequency coil arrays. Magn Reson Med 38:591-603.
4. Pruessmann KP, Weiger M, Scheidegger MB, Boesiger P. 1999. SENSE: sensitivity encoding for fast MRI. Magn Reson Med 42:952-962.
5. Lee RF, Westgate CR, Weiss RG, Newman DC, Bottomley PA. 2001. Planar strip array (PSA) for MRI. Magn Reson Med 45:673-683.
6. Lee RF, Hardy CJ, Sodickson DK, Bottomley PA. 2004. Lumped-element planar strip array (LPSA) for parallel MRI. Magn Reson Med 51:172-183.
7. 1 field inhomogeneity in UHFMRI: computational analysis and experimental findings. Magn Reson Imaging 19:219-226.
8. Hoult DI. 2000. Sensitivity and power deposition in a high-field imaging experiment. J Magn Reson Imaging 12:46-67.
9. Wang J, Yang QX, Zhang X, Collins CM, Smith MB, Zhu XH, et al. 2002. Polarization of the RF field in a human head at high field: a study with a quadrature surface coil at 7.0 T. Magn Reson Med 48:362-369.
10. Wald LL, Wiggins GC, Potthast A, Wiggins CJ, Triantafyllou C. 2005. Design considerations and coil comparisons for 7 T brain imaging. Appl Magn Reson 29:19-37.
11. Merkle H, Garwood M, Ugurbil K. Dedicated circularly polarized surface coil assemblies for brain studies at 4T. In: Proceedings of the 12th Annual Meeting of SMRM, New York, NY, USA, 1993. p 1358.
12. Merkle H, Driesel W, Andersen P, Adriany G, Ugurbil K, Garwood M. Circularly polarized RF helmet coil for brain studies at 7 tesla. In: Proceedings of the 8th Annual Meeting of ISMRM, Denver, CO, USA, 2000. p 565.
13. Silva AC, Merkle H. 2003. Hardware considerations for functional magnetic resonance imaging. Concepts Magn Reson A 16:35-49.
14. Driesel W, Merkle H, Hetzer S, Riemer T, Zysset S, Möller HE. 2005. Reengineered helmet coil for human brain studies at 3 tesla. Concepts Magn Reson Part B: Magn Reson Eng 27:64-74.
15. 1H MR studies at high magnetic fields. Concepts Magn Reson Part B: Magn Reson Eng 31:71-85.
16. Bahl IJ, Trivedl DK. 1977. A designer's guide to microstrip line. Microwaves 16:174-182.
17. Zhang X, Ugurbil K, Chen W. 2001. Microstrip RF surface coil design for extremely high-field MRI and spectroscopy. Magn Reson Med 46:443-450.
18. Lee RF, Giaquinto RO, Hardy CJ. 2002. Coupling and decoupling theory and its application to the MRI phased array. Magn Reson Med 48:203-213.
19. de Zwart JA, Ledden PJ, Kellman P, van Gelderen P, Duyn JH. 2002. Design of a SENSE-optimized high sensitivity MRI receive coil for brain imaging. Magn Reson Med 47:1218-1227.
20. Hoult DI. 2000. The principle of reciprocity in signal strength calculations - a mathematical guide. Concepts Magn Reson 12:173-187.
21. Collins CM, Smith MB. 2001. Signal-to-noise ratio and absorbed power as functions of main magnetic field strength, and definition of "90°" RF pulse for the head in the birdcage coil. Magn Reson Med 45:684-691.
22. Hoult DI, Bhakar N. 1997. NMR signal reception: virtual photons and coherent spontaneous emission. Concepts Magn Reson 9:277-297.
23. 1 field distributions in a heterogeneous human head model within a birdcage coil. Magn Reson Med 40:847-856.
24. International Electrotechnical Commission. 2002. IEC 60601-2-33 Medical electrical equipment - part 2-33: particular requirements for the safety of magnetic resonance equipment for medical diagnosis, 2nd ed. Geneva. IEC.
25. Hoult DI. 1978. The NMR receiver: a description and analysis of design. Prog NMR Spectr 12:41-77.
26. Haase A, Odoj F, von Kienlin M, Warnking J, Fidler F, Weisser A, et al. 2000. NMR probeheads for in vivo applications. Concepts Magn Reson 12:361-388.
27. Hayes CE, Roemer PB. 1990. Noise correlations in data simultaneously acquired from multiple surface coil arrays. Magn Reson Med 16:181-191.
28. Bernstein MA, King KF, Zhou XJ. 2004. Handbook of MRI Pulse Sequences. Burlington, MA: Elsevier. pp 501-502.
29. Constantinides CD, Atalar E, McVeigh ER. 1997. Signal-to-noise measurements in magnitude images from NMR phased arrays. Magn Reson Med 38:852-857.
30. 1 field in vivo. Magn Reson Med 35:246-251.
31. Griswold MA, Jakob PM, Heidemann RM, Mittka M, Jellus V, Wang J, et al. 2002. Generalized autocalibration partially parallel acquisition (GRAPPA). Magn Reson Med 47:1202-1210.
32. Council Directive 93/42/EEC of 14 June 1993 concerning medical devices. Offic J Eur Communities 1993; L 169:1-43.
33. Norris DG. 2000. Reduced power multislice MDEFT imaging. J Magn Reson Imaging 11:445-451.
34. Zaharchuk G, Ledden PJ, Kwong KK, Reese TG, Rosen BR, Wald LL. 1999. Multislice perfusion and perfusion territory imaging in humans with separate label and image coils. Magn Reson Med 41:1093-1098.
35. Mildner T, Trampel R, Möller HE, Schäfer, A, Wiggins CJ, Norris DG. 2003. Functional perfusion imaging using continuous arterial spin labeling with separate labeling and imaging coils at 3 T. Magn Reson Med 49:791-795.
36. Mildner T, Möller HE, Driesel W, Norris DG, Trampel R. 2005. Continuous arterial spin labeling at the human common carotid artery: The influence of transit times. NMR Biomed 18:19-23.
37. Hetzer S, Mildner T, Driesel W, Möller HE. An optimised dual-loop labeling coil for whole-brain perfusion studies. In: Proceedings of the 15th Annual Meeting of ISMRM, Berlin, Germany, 2007. p 3278.