Minimization of Nyquist ghosting for echo-planar imaging at ultra-high fields based on a "negative readout gradient" strategy

Journal of Magnetic Resonance Imaging

Volumn 30, Issue 5, 2009, Pages 1171-1178

  Van Der Zwaag, Wietske ^a,b   Marques, José P ^a,b   Lei, Hongxia ^a,b   Just, Nathalie ^a,b   Kober, Tobias ^a,c   Gruetter, Rolf ^a,b,d  

^a EPFL   (Switzerland)

^b UNIVERSITY OF LAUSANNE   (Switzerland)

^c Siemens Schweiz AG   (Switzerland)

^d UNIVERSITY OF GENEVA   (Switzerland)

Author keywords

EPI; fMRI; Ghost correction; Nyquist ghost

Indexed keywords

ALGORITHM; ANIMAL EXPERIMENT; ARTICLE; BLOOD OXYGENATION; BRAIN; COMPUTED TOMOGRAPHY SCANNER; ECHO PLANAR IMAGING; FALSE POSITIVE RESULT; FUNCTIONAL MAGNETIC RESONANCE IMAGING; HUMAN; IMAGE INTENSIFIER; IMAGE PROCESSING; IMAGE QUALITY; IMAGING SYSTEM; INTERMETHOD COMPARISON; NONHUMAN; PHANTOM; POLARIZATION; PRIORITY JOURNAL; RAT; SIGNAL PROCESSING;

ALGORITHMS; ANIMALS; BRAIN; BRAIN MAPPING; ECHO-PLANAR IMAGING; FALSE POSITIVE REACTIONS; FEMALE; HUMANS; IMAGE PROCESSING, COMPUTER-ASSISTED; MAGNETIC RESONANCE IMAGING; MALE; OXYGEN; PHANTOMS, IMAGING; RATS;

EID: 70350445779     PISSN: 10531807     EISSN: 15222586     Source Type: Journal    
DOI: 10.1002/jmri.21951     Document Type: Article

References (18)

1. Mansfield P. Multiplanar image formation using NMR spin echoes. J Phys C 1977;10:L55-L58.
2. Bruder H, Fischer H, Reinfelder HE, Schmitt F. Image reconstruction for echo planar imaging with nonequidistant k-space sampling. Magn Reson Med 1992;23:12.
3. Reeder SB, Faranesh AZ, Atalar E, McVeigh ER. A novel object-independent "balanced" reference scan for echo-planar imaging. J Magn Reson Imaging 1999;9:847-852.
4. Chen NK, Wyrwicz AM. Removal of EPI Nyquist ghost artifacts with two-dimensional phase correction. Magn Reson Med 2004;51:1247-1253.
5. Xiang QS, Ye FQ. Correction for geometric distortion and N/2 ghosting in EPI by phase labeling for additional coordinate encoding (PLACE). Magn Reson Med 2007;57:731-741.
6. Schmithorst VJ, Dardzinski BJ, Holland SK. Simultaneous correction of ghost and geometric distortion artifacts in EPI using a multiecho reference scan. IEEE Trans Med Imaging 2001;20:535-539.
7. Zhang Y, Wehrli FW. Reference-scan-free method for automated correction of Nyquist ghost artifacts in echoplanar brain images. Magn Reson Med 2004;51:621-624. (Pubitemid 38298679)
8. Kellman P, McVeigh ER. Phased array ghost elimination. NMR Biomed 2006;19:352-361.
9. Kim YC, Nielsen JF, Nayak KS. Automatic correction of echo-planar imaging (EPI) ghosting artifacts in real-time interactive cardiac MRI using sensitivity encoding. J Magn Reson Imaging 2008;27:239-245.
10. de Zwart JA, van Gelderen P, Kellman P, Duyn JH. Application of sensitivity-encoded echo-planar imaging for blood oxygen level-dependent functional brain imaging. Magn Reson Med 2002;48:1011-1020. (Pubitemid 35398531)
11. Hu X, Le TH. Artifact reduction in EPI with phase-encoded reference scan. Magn Reson Med 1996;36:166-171.
12. Mansfield P, Morris PG. NMR imaging in biomedicine. New York: Academic Press; 1982.
13. Gruetter R. Automatic, localized in vivo adjustment of all first- and second-order shim coils. Magn Reson Med 1993;29:804-811. (Pubitemid 23182863)
14. Speck O, Stadler J, Zaitsev M. High resolution single-shot EPI at 7T. Magma 2008;21:73-86.
15. Menon RS. Postacquisition suppression of large-vessel BOLD signals in high-resolution fMRI. Magn Reson Med 2002;47:1-9.
16. Lee SP, Silva AC, Ugurbil K, Kim SG. Diffusion-weighted spin-echo fMRI at 9.4 T: microvascular/tissue contribution to BOLD signal changes. Magn Reson Med 1999;42:919-928. (Pubitemid 29521482)
17. Peters AM, Brookes MJ, Hoogenraad FG, et al. T2* measurements in human brain at 1.5, 3 and 7 T. Magn Reson Imaging 2007;25:748-753.
18. Madore B. Using UNFOLD to remove artifacts in parallel imaging and in partial-Fourier imaging. Magn Reson Med 2002;48:493-501. (Pubitemid 34951327)