Fast myelin water fraction estimation using 2D multislice CPMG

T2 relaxometry based on multiexponential fitting to a single slice multiecho sequence has been the most common MRI technique for myelin water fraction mapping, where the short T2 is associated with myelin water. However, very long acquisition times and physically unrealistic models for T2 distribution are limitations of this approach. We present a novel framework for myelin imaging which substantially increases the imaging speed and myelin water fraction estimation accuracy.

[1]  Jing Zhang,et al.  Comparison of myelin water fraction from multiecho T2 decay curve and steady‐state methods , 2015, Magnetic resonance in medicine.

[2]  B. Mädler,et al.  Multicenter measurements of myelin water fraction and geometric mean T2: Intra‐ and intersite reproducibility , 2013, Journal of magnetic resonance imaging : JMRI.

[3]  K. Scheffler,et al.  Feasibility of in vivo myelin water imaging using 3D multigradient‐echo pulse sequences , 2012, Magnetic resonance in medicine.

[4]  Jürgen Hennig,et al.  Echoes—how to generate, recognize, use or avoid them in MR‐imaging sequences. Part II: Echoes in imaging sequences , 1991 .

[5]  Philip D. Harvey,et al.  White matter changes in schizophrenia: evidence for myelin-related dysfunction. , 2003, Archives of general psychiatry.

[6]  Simon K. Warfield,et al.  T 2-Relaxometry for Myelin Water Fraction Extraction Using Wald Distribution and Extended Phase Graph , 2014, MICCAI.

[7]  Jimmy Lee,et al.  Reproducibility of myelin water fraction analysis: a comparison of region of interest and voxel-based analysis methods. , 2009, Magnetic resonance imaging.

[8]  G. Golub,et al.  Separable nonlinear least squares: the variable projection method and its applications , 2003 .

[9]  Craig K. Jones,et al.  Applications of stimulated echo correction to multicomponent T2 analysis , 2012, Magnetic resonance in medicine.

[10]  J. Hennig Echoes—how to generate, recognize, use or avoid them in MR‐imaging sequences. Part I: Fundamental and not so fundamental properties of spin echoes , 1991 .

[11]  Burkhard Mädler,et al.  Normal-appearing white matter in patients with phenylketonuria: water content, myelin water fraction, and metabolite concentrations. , 2007, Radiology.

[12]  R V Mulkern,et al.  Magnetization transfer effects in multislice RARE sequences , 1992, Magnetic resonance in medicine.

[13]  A. Mackay,et al.  In vivo measurement of T2 distributions and water contents in normal human brain , 1997, Magnetic resonance in medicine.

[14]  Daniel K Sodickson,et al.  Rapid and accurate T2 mapping from multi–spin‐echo data using Bloch‐simulation‐based reconstruction , 2015, Magnetic resonance in medicine.

[15]  H Engels,et al.  Incidental magnetization transfer contrast in standard multislice imaging. , 1990, Magnetic resonance imaging.

[16]  Gaby S Pell,et al.  Optimized clinical T2 relaxometry with a standard CPMG sequence , 2006, Journal of magnetic resonance imaging : JMRI.

[17]  A. MacKay,et al.  In vivo visualization of myelin water in brain by magnetic resonance , 1994, Magnetic resonance in medicine.

[18]  J. Leroy Folks,et al.  The Inverse Gaussian Distribution: Theory: Methodology, and Applications , 1988 .

[19]  G. B. Pike,et al.  MRI‐based myelin water imaging: A technical review , 2015, Magnetic resonance in medicine.

[20]  P. Batchelor,et al.  International Society for Magnetic Resonance in Medicine , 1997 .

[21]  J. R. Mitchell,et al.  Quantitative T2 analysis: The effects of noise, regularization, and multivoxel approaches , 2009, Magnetic resonance in medicine.

[22]  Dong-Hyun Kim,et al.  In vivo multi-slice mapping of myelin water content using T 2 * decay , 2010, NeuroImage.

[23]  H. Gudbjartsson,et al.  The rician distribution of noisy mri data , 1995, Magnetic resonance in medicine.

[24]  A. MacKay,et al.  Magnetic resonance imaging of myelin , 2007, Neurotherapeutics.

[25]  S. Meiboom,et al.  Modified Spin‐Echo Method for Measuring Nuclear Relaxation Times , 1958 .

[26]  Torbjörn Falkmer,et al.  The Case for Using the Repeatability Coefficient When Calculating Test–Retest Reliability , 2013, PloS one.

[27]  Shannon H Kolind,et al.  Investigating the stability of mcDESPOT myelin water fraction values derived using a stochastic region contraction approach , 2015, Magnetic resonance in medicine.

[28]  R. Lebel,et al.  Transverse relaxometry with stimulated echo compensation , 2010, Magnetic resonance in medicine.

[29]  Alex L. MacKay,et al.  Rapid whole cerebrum myelin water imaging using a 3D GRASE sequence , 2012, NeuroImage.

[30]  A. Crawley,et al.  Errors in T2 estimation using multislice multiple‐echo imaging , 1987, Magnetic resonance in medicine.

[31]  D. E. Maxwell,et al.  Spin Echo Measurements of Nuclear Spin Coupling in Molecules , 1952 .

[32]  Alex L. MacKay,et al.  Quantitative interpretation of NMR relaxation data , 1989 .

[33]  C. S. Poon,et al.  Practical T2 quantitation for clinical applications , 1992, Journal of magnetic resonance imaging : JMRI.

[34]  S. Renowden,et al.  Magnetic Resonance of Myelination and Myelin Disorders , 2006, Journal of Neurology.

[35]  S. Schoenberg,et al.  Measurement of signal‐to‐noise ratios in MR images: Influence of multichannel coils, parallel imaging, and reconstruction filters , 2007, Journal of magnetic resonance imaging : JMRI.

[36]  B. Mädler,et al.  Insights into brain microstructure from the T2 distribution. , 2006, Magnetic resonance imaging.

[37]  J. Hennig Multiecho imaging sequences with low refocusing flip angles , 1988 .

[38]  Burkhard Mädler,et al.  Myelin water imaging: Implementation and development at 3.0T and comparison to 1.5T measurements , 2009, Magnetic resonance in medicine.

[39]  C. Laule,et al.  Water content and myelin water fraction in multiple sclerosis , 2004, Journal of Neurology.

[40]  Rudolf Stollberger,et al.  Closed‐form solution for T2 mapping with nonideal refocusing of slice selective CPMG sequences , 2015, Magnetic resonance in medicine.

[41]  Fast MRI by creating multiple spin echoes in a CPMG sequence , 1993, Magnetic resonance in medicine.

[42]  Rajiv Midha,et al.  Is multicomponent T2 a good measure of myelin content in peripheral nerve? , 2003, Magnetic resonance in medicine.

[43]  A. MacKay,et al.  Spin‐spin relaxation in experimental allergic Encephalomyelitis. Analysis of CPMG data using a non‐linear least squares method and linear inverse theory , 1993, Magnetic resonance in medicine.

[44]  Alex L MacKay,et al.  Robust myelin water quantification: Averaging vs. spatial filtering , 2003, Magnetic resonance in medicine.