Jongho Lee

Summary

Affiliation: National Institutes of Health
Country: USA

Publications

  1. pmc Improved shim method based on the minimization of the maximum off-resonance frequency for balanced steady-state free precession (bSSFP)
    Jongho Lee
    Advanced MRI, Laboratory for Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
    Magn Reson Med 61:1500-6. 2009
  2. pmc On the contribution of deoxy-hemoglobin to MRI gray-white matter phase contrast at high field
    Jongho Lee
    Advanced MRI Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
    Neuroimage 49:193-8. 2010
  3. pmc Sensitivity of MRI resonance frequency to the orientation of brain tissue microstructure
    Jongho Lee
    Advanced MRI Section and Cerebral Microcirculation Unit, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
    Proc Natl Acad Sci U S A 107:5130-5. 2010
  4. pmc Improving contrast to noise ratio of resonance frequency contrast images (phase images) using balanced steady-state free precession
    Jongho Lee
    Advanced MRI Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892 1065, USA
    Neuroimage 54:2779-88. 2011
  5. pmc The contribution of myelin to magnetic susceptibility-weighted contrasts in high-field MRI of the brain
    Jongho Lee
    Advanced MRI Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
    Neuroimage 59:3967-75. 2012
  6. pmc Nonexponential T₂ decay in white matter
    Peter van Gelderen
    Advanced MRI Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
    Magn Reson Med 67:110-7. 2012
  7. pmc Prospective head-movement correction for high-resolution MRI using an in-bore optical tracking system
    Lei Qin
    Advanced MRI, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892 1065, USA
    Magn Reson Med 62:924-34. 2009
  8. pmc T2*-based fiber orientation mapping
    Jongho Lee
    Advanced MRI Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
    Neuroimage 57:225-34. 2011
  9. pmc Layer-specific variation of iron content in cerebral cortex as a source of MRI contrast
    Masaki Fukunaga
    Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
    Proc Natl Acad Sci U S A 107:3834-9. 2010

Detail Information

Publications9

  1. pmc Improved shim method based on the minimization of the maximum off-resonance frequency for balanced steady-state free precession (bSSFP)
    Jongho Lee
    Advanced MRI, Laboratory for Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
    Magn Reson Med 61:1500-6. 2009
    ..The method can be used to increase the signal-to-noise ratio (SNR) in bSSFP imaging or to increase the functional contrast in bSSFP functional MRI (fMRI) by allowing a longer usable repetition time (TR)...
  2. pmc On the contribution of deoxy-hemoglobin to MRI gray-white matter phase contrast at high field
    Jongho Lee
    Advanced MRI Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
    Neuroimage 49:193-8. 2010
    ..This result suggests that endogenous deoxy-hemoglobin has no significant contribution to phase contrast between gray and white matter...
  3. pmc Sensitivity of MRI resonance frequency to the orientation of brain tissue microstructure
    Jongho Lee
    Advanced MRI Section and Cerebral Microcirculation Unit, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
    Proc Natl Acad Sci U S A 107:5130-5. 2010
    ..This anisotropy, which has been shown to depend on molecular ordering, may provide valuable information about tissue molecular structure...
  4. pmc Improving contrast to noise ratio of resonance frequency contrast images (phase images) using balanced steady-state free precession
    Jongho Lee
    Advanced MRI Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892 1065, USA
    Neuroimage 54:2779-88. 2011
    ..Without these additions, the CNR benefits of the method may be limited to studies at low field or limited regions of interest...
  5. pmc The contribution of myelin to magnetic susceptibility-weighted contrasts in high-field MRI of the brain
    Jongho Lee
    Advanced MRI Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
    Neuroimage 59:3967-75. 2012
    ....
  6. pmc Nonexponential T₂ decay in white matter
    Peter van Gelderen
    Advanced MRI Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
    Magn Reson Med 67:110-7. 2012
    ..The findings suggest that T(2) contrast at high field may be uniquely sensitive to tissue myelin content and that proper interpretation will require modeling of susceptibility-induced resonance frequency shifts...
  7. pmc Prospective head-movement correction for high-resolution MRI using an in-bore optical tracking system
    Lei Qin
    Advanced MRI, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892 1065, USA
    Magn Reson Med 62:924-34. 2009
    ..Experiments performed on subjects demonstrate robust system performance with translation and rotation accuracies of 0.1 mm and 0.15 degrees, respectively...
  8. pmc T2*-based fiber orientation mapping
    Jongho Lee
    Advanced MRI Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
    Neuroimage 57:225-34. 2011
    ..As an illustration of a potential use of the orientation dependence of R(2)*, the feasibility of generating fiber orientation maps from R(2)* data is investigated...
  9. pmc Layer-specific variation of iron content in cerebral cortex as a source of MRI contrast
    Masaki Fukunaga
    Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
    Proc Natl Acad Sci U S A 107:3834-9. 2010
    ..The results show that iron is distributed over laminae in a pattern that is suggestive of each region's myeloarchitecture and forms the dominant source of the observed MRI contrast...