Magnetic Resonance Imaging
Volume 27, Issue 10 , Pages 1410-1419 , December 2009

Retrospective correction for T1-weighting bias in T2 values obtained with various spectroscopic spin-echo acquisition schemes

Received 7 July 2008 ,Revised 30 March 2009 ,Accepted 10 May 2009.

References 

  1. Jezzard P, Duewell S, Balaban RS. MR relaxation times in human brain: measurement at 4 T. Radiology. 1996;199(3):773–779
  2. Michaeli S, Garwood M, Zhu XH, DelaBarre L, Andersen P, Adriany G, et al. Proton T2 relaxation study of water, N-acetylaspartate, and creatine in human brain using Hahn and Carr-Purcell spin echoes at 4T and 7T. Magn Reson Med. 2002;47(4):629–633
  3. de Bazelaire CM, Duhamel GD, Rofsky NM, Alsop DC. MR imaging relaxation times of abdominal and pelvic tissues measured in vivo at 3.0 T: preliminary results. Radiology. 2004;230(3):652–659
  4. Tofts P. In:  Tofts P editors. Quantitative MRI of the brain measuring changes caused by disease. Chichester: John-Wiley & Sons limited; 2003;
  5. Zaaraoui W, Fleysher L, Fleysher R, Liu S, Soher BJ, Gonen O. Human brain-structure resolved T(2) relaxation times of proton metabolites at 3 Tesla. Magn Reson Med. 2007;57(6):983–989
  6. Tsai SY, Posse S, Lin YR, Ko CW, Otazo R, Chung HW, et al. Fast mapping of the T2 relaxation time of cerebral metabolites using proton echo-planar spectroscopic imaging (PEPSI). Magn Reson Med. 2007;57(5):859–865
  7. Fleysher R, Fleysher L, Gonen O. The optimal MR acquisition strategy for exponential decay constants estimation. Magn Reson Imaging. 2008;26(3):433–435
  8. Bartha R, Michaeli S, Merkle H, Adriany G, Andersen P, Chen W, et al. In vivo 1H2O T2+ measurement in the human occipital lobe at 4T and 7T by Carr-Purcell MRI: detection of microscopic susceptibility contrast. Magn Reson Med. 2002;47(4):742–750
  9. Deoni SC, Peters TM, Rutt BK. High-resolution T1 and T2 mapping of the brain in a clinically acceptable time with DESPOT1 and DESPOT2. Magn Reson Med. 2005;53(1):237–241
  10. Bottomley PA. Spatial localization in NMR spectroscopy in vivo. Ann N Y Acad Sci. 1987;508:333–348
  11. Traber F, Block W, Lamerichs R, Gieseke J, Schild HH. 1H metabolite relaxation times at 3.0 tesla: Measurements of T1 and T2 values in normal brain and determination of regional differences in transverse relaxation. J Magn Reson Imaging. 2004;19(5):537–545
  12. Brief EE, Whittall KP, Li DK, MacKay AL. Proton T2 relaxation of cerebral metabolites of normal human brain over large TE range. NMR Biomed. 2005;18(1):14–18
  13. Mlynarik V, Gruber S, Moser E. Proton T (1) and T (2) relaxation times of human brain metabolites at 3 Tesla. NMR Biomed. 2001;14(5):325–331
  14. Tofts PS, Johnson G. A SAFE (saturate after the echo) sequence to eliminate an artefact in the measurement of T2 in partially saturated NMR systems. Phys Med Biol. 1987;32(10):1345–1353
  15. Fleysher L, Fleysher R, Liu S, Zaaraoui W, Gonen O. Optimizing the precision-per-unit-time of quantitative MR metrics: Examples for T(1), T(2), and DTI. Magn Reson Med. 2007;57(2):380–387
  16. Goelman G, Liu S, Hess D, Gonen O. Optimizing the efficiency of high-field multivoxel spectroscopic imaging by multiplexing in space and time. Magn Reson Med. 2006;56(1):34–40
  17. Johnson G, Wadghiri YZ. Turnbull DH. 2D multislice and 3D MRI sequences are often equally sensitive. Magn Reson Med. 1999;41(4):824–828
  18. Dixon WT, Sardashti M, Castillo M, Stomp GP. Multiple inversion recovery reduces static tissue signal in angiograms. Magn Reson Med. 1991;18(2):257–268
  19. Gonen O, Murdoch JB, Stoyanova R, Goelman G. 3D multivoxel proton spectroscopy of human brain using a hybrid of 8th-order Hadamard encoding with 2D chemical shift imaging. Magn Reson Med. 1998;39(1):34–40
  20. Gonen O, Arias-Mendoza F, Goelman G. 3D localized in vivo 1H spectroscopy of human brain by using a hybrid of 1D-Hadamard with 2D-chemical shift imaging. Magn Reson Med. 1997;37(5):644–650
  21. Marion D, Ikura M, Bax A. Improved solvent suppression in one- and two-dimensional NMR spectra by convolution of time domain data. J Magn Reson. 1989;84:425–430
  22. Soher BJ, Young K, Govindaraju V, Maudsley AA. Automated spectral analysis III: application to in vivo proton MR spectroscopy and spectroscopic imaging. Magn Reson Med. 1998;40(6):822–831
  23. Rutgers DR, van der Grond J. Relaxation times of choline, creatine and N-acetyl aspartate in human cerebral white matter at 1.5 T. NMR Biomed. 2002;15(3):215–221
  24. Liu S, Gonen O, Fleysher L, Fleysher R, Soher BJ, Pilkenton S, et al. Regional metabolite T(2) in the healthy rhesus macaque brain at 7T. Magn Reson Med. 2008;59(5):1165–1169
  25. Kirov II, Fleysher L, Fleysher R, Patil V, Liu S, Gonen O. The age dependence of regional proton metabolites T2 relaxation times in the human brain at 3 tesla. Mag Reson Med. 2008;60(4):790–795
  26. Eadie W, Drijard D, James F, Roos M, Sadoulet B. Statistical methods in experimental physics. Amsterdam: Elsevier; 1971;

PII: S0730-725X(09)00120-9

doi: 10.1016/j.mri.2009.05.033

Magnetic Resonance Imaging
Volume 27, Issue 10 , Pages 1410-1419 , December 2009