References
- Tofts PS. Modeling tracer kinetics in dynamic Gd-DTPA MR imaging. J Magn Reson Imaging. 1997;7(1):91–101.
- Ogawa S, Lee TM, Kay AR, Tank DW. Brain magnetic resonance imaging with contrast dependent on blood oxygenation. Proc Natl Acad Sci U S A. 1990;87(24):9868–9872.
- Rieke V, Butts-Pauly K. MR thermometry. J Magn Reson Imaging. 2008;27(2):376–390.
- Sun PZ, Sorensen AG. Imaging pH using the chemical exchange saturation transfer (CEST) MRI: correction of concomitant RF irradiation effects to quantify CEST MRI for chemical exchange rate and pH. Magn Reson Med. 2008;60(2):390–397.
- Manduca A, Oliphant TE, Dresner MA, et al. Magnetic resonance elastography: non-invasive mapping of tissue elasticity. Med Image Anal. 2001;5(4):237–254.
- Larson PS, Starr PA, Bates G, Tansey L, Richardson RM, Martin AJ. An optimized system for interventional magnetic resonance imaging-guided stereotactic surgery: preliminary evaluation of targeting accuracy. Neurosurgery. 2012;70(1 Suppl Operative):95–103.
- Wachowicz K, Tadic T, Fallone BG. Geometric distortion and shimming considerations in a rotating MR-linac design due to the influence of low-level external magnetic fields. Med Phys. 2012;39(5):2659–2668.
- Martinez-Möller A, Eiber M, Nekolla SG, et al. Workflow and scan protocol considerations for integrated whole-body PET/MRI in oncology. J Nucl Med. 2012;53(9):1415–1426.
- Poole M, Bowtell R. Novel gradient coils designed using a boundary element method. Concepts Magn Reson Part B Magn Reson Eng. 2007;31(3):162–175.
- Janke A, Zhao H, Cowin GJ, Galloway GJ, Doddrell DM. Use of spherical harmonic deconvolution methods to compensate for nonlinear gradient effects on MRI images. Magn Reson Med. 2004;52(1):115–122.
- Kristensena BH, Laursena FJ, Løgager V, Geertsen PF, Krarup- Hansen A. Dosimetric and geometric evaluation of an open low-field magnetic resonance simulator for radiotherapy treatment planning of brain tumours. Radiother Oncol. 2008;87(1):100–109.
- Golay MJ. Field homogenizing coils for nuclear spin resonance instrumentation. Rev Sci Instrum. 1958;29(4):313–315.
- Koch KM, Rothman DL, de Graaf RA. Optimization of static magnetic field homogeneity in the human and animal brain in vivo. Prog Nucl Magn Reson Spectrosc. 2009;54(2):69–96.
- Schenck JF. The role of magnetic susceptibility in magnetic resonance imaging: MRI magnetic compatibility of the first and second kinds. Med Phys. 1996;23(6):815–850.
- Murashima M, Ueno T, Sugimoto N. Effective digitized spatial size of unit dipole field in quantitative susceptibility mapping. Poster presented at: 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society; July 3–7, 2013; Osaka, Japan.
- Gruetter R, Boesch C. Fast, noniterative shimming of spatially localized signals. In vivo analysis of the magnetic field along axes. J Magn Reson. 1992;96:323–334.
- de Graaf RA. In Vivo NMR Spectroscopy: Principles and Techniques. 2nd ed. Chichester, UK: John Wiley and Sons; 2007.
- Hillenbrand DF, Lo KM, Punchard WF, Reese TG, Starewicz PM. High-order MR shimming: a simulation study of the effectiveness of competing methods, using an established susceptibility model of the human head. Appl Magn Reson. 2005;29(1):39–64.
- Liu F, Zhu J, Xia L, Crozier S. A hybrid field-harmonics approach for passive shimming design in MRI. IEEE Trans Appl Supercond. 2011;21(2):60–67.
- Anderson WA. Electrical current shims for correcting magnetic fields. Rev Sci Instrum. 1961;32(3):241–250.
- Roméo F, Hoult DI. Magnet field profiling: analysis and correcting coil design. Magn Reson Med. 1984;1(1):44–65.
- Liu W, Tang X, Zu D. A novel target-field approach to design bi-planar shim coils for permanent-magnet MRI. Concepts Magn Reson Part B Magn Reson Eng. 2010;37(1):29–38.
- Pan JW, Lo KM, Hetherington HP. Role of very high order and degree B0 shimming for spectroscopic imaging of the human brain at 7 tesla. Magn Reson Med. 2012;68(4):1007–1017.
- Schmitt F, Potthast A, Stoeckel B, Triantafyllou C, Wiggins CJ. Aspects of clinical imaging at 7 T. In: Robitaille PM, Berliner L, editors. Ultra High Field Magnetic Resonance Imaging. New York: Springer; 2006.
- Hong L, Zu D. Shimming permanent magnet of MRI scanner. Prog Electromagn Res Symp. 2007;3(6):859–864.
- Haishi T, Uematsu T, Yoshimasa M, Katsumi K. Development of a 1.0 T MR microscope using a Nd-Fe-B permanent magnet. Magn Reson Imaging. 2001;19(6):875–880.
- Hoult DI. “Shimming” on spatially localized signals. J Magn Reson. 1987;73(1):174–177.
- Prammer MG, Haselgrove JC, Shinnar M, Leigh JS. A new approach to automatic shimming. J Magn Reson. 1988;77(1):40–52.
- Gruetter R. Automatic, localized in vivo adjustment of all first- and second-order shim coils. Magn Reson Med. 1993;29(6):804–811.
- Shen J, Rycyna RE, Rothman DL. Improvements on an in vivo automatic shimming method (FASTERMAP). Magn Reson Med. 1997;38(5):834–839.
- Gruetter R, Tkác I. Field mapping without reference scan using asymmetric echo-planar techniques. Magn Reson Med. 2000;43(2):319–323.
- Reese TG, Davis TL, Weisskoff RM. Automated shimming at 1.5 T using echo-planar image frequency maps. J Magn Reson Imaging. 1995;5(6):739–745.
- Wilson JL, Jenkinson M, de Araujo I, Kringelbach ML, Rolls ET, Jezzard P. Fast, fully automated global and local magnetic field optimization for fMRI of the human brain. Neuroimage. 2002;17(2):967–976.
- Wilson JL, Jenkinson M, Jezzard P. Optimization of static field homogeneity in human brain using diamagnetic passive shims. Magn Reson Med. 2002;48(5):906–914.
- Simon MD, Heflinger LO, Geim AK. Diamagnetically stabilized magnet levitation. Am J Phys. 2001;69(6):702–713.
- Cusack R, Russel B, Cox SM, De Panfilis C, Schwarzbauer C, Ansorge R. An evaluation of the use of passive shimming to improve frontal sensitivity in fMRI. Neuro Image. 2005;24(1):82–91.
- Juchem C, Muller-Bierl B, Schick F, Logothetis NK, Pfeuffer J. Combined passive and active shimming for in vivo MR spectroscopy at high magnetic fields. J Magn Reson. 2006;183(2):278–289.
- Koch KM, Brown PB, Rothman DL, de Graaf RA. Sample-specific diamagnetic and paramagnetic passive shimming. J Magn Reson. 2006;182(1):66–74.
- Yang S, Kim H, Ghim MO, Lee BU, Kim DH. Local in vivo shimming using adaptive passive shim positioning. Magn Reson Imaging. 2011;29(3):401–407.
- Jesmanowicz A, Roopchansingh V, Cox RW, Starewicz P, Punchard WF, Hyde JS. Local ferroshims using office copier toner. Poster presented at: 9th Annual Scientific Meeting of the International Society for Magnetic Resonance Medicine; April 21–27, 2001; Glasgow, UK.
- Neufeld A, Assaf Y, Graif M, Hendler T, Navon G. Susceptibility-matched envelope for the correction of EPI artifacts. Magn Reson Imaging. 2005;23(9):947–951.
- Moriya S, Miki Y, Yokobayashi T, et al. Rice and perfluorocarbon liquid pads: comparison of fat suppression effects. Acta Radiol. 2010;51(5):534–538.
- Hsu JJ, Glover GH. Mitigation of susceptibility-induced signal loss in neuroimaging using localized shim coils. Magn Reson Med. 2005;53(2):243–248.
- Juchem C, Nixon TW, McIntyre S, Rothman DL, de Graaf RA. Magnetic field homogenization of the human prefrontal cortex with a set of localized electrical coils. Magn Reson Med. 2010;63(1):171–180.
- Juchem C, Rothman DL, de Graaf RA. First- to fourth-order spherical harmonics shimming with a grid of circular electrical coils. Poster presented at: Proceedings of the 17th Annual Scientific Meeting of the International Society for Magnetic Resonance Medicine; April 18–24, 2009; Honolulu, HI.
- Juchem C, Nixon TW, McIntyre S, Rothman DL, de Graaf RA. Magnetic field modeling with a set of individual localized coils. J Magn Reson. 2010;204(2):281–289.
- Juchem C, Brown PB, Nixon TW, McIntyre S, Rothman DL, de Graaf RA. Multicoil shimming of the mouse brain. Magn Reson Med. 2011;66(3):893–900.
- Juchem C, Nixon TW, McIntyre S, Boer VO, Rothman DL, de Graaf RA. Dynamic multi-coil shimming of the human brain at 7 T. J Magn Reson. 2011;212(2):280–288.
- Juchem C, Green D, de Graaf RA. Multi-coil magnetic field modeling. J Magn Reson. 2013;236:95–104.