Jun Hua

Summary

Affiliation: Johns Hopkins University
Country: USA

Publications

  1. ncbi request reprint Implementation of vascular-space-occupancy MRI at 7T
    Jun Hua
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
    Magn Reson Med 69:1003-13. 2013
  2. pmc Measurement of absolute arterial cerebral blood volume in human brain without using a contrast agent
    Jun Hua
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
    NMR Biomed 24:1313-25. 2011
  3. pmc Physiological origin for the BOLD poststimulus undershoot in human brain: vascular compliance versus oxygen metabolism
    Jun Hua
    Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
    J Cereb Blood Flow Metab 31:1599-611. 2011
  4. pmc Magnetization transfer enhanced vascular-space-occupancy (MT-VASO) functional MRI
    Jun Hua
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
    Magn Reson Med 61:944-51. 2009
  5. pmc Nuclear Overhauser enhancement (NOE) imaging in the human brain at 7T
    Craig K Jones
    Division of MR Research, Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
    Neuroimage 77:114-24. 2013
  6. pmc Inflow-based vascular-space-occupancy (iVASO) MRI
    Jun Hua
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
    Magn Reson Med 66:40-56. 2011
  7. pmc Effect of inflow of fresh blood on vascular-space-occupancy (VASO) contrast
    Manus J Donahue
    Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
    Magn Reson Med 61:473-80. 2009
  8. pmc Three-dimensional whole-brain perfusion quantification using pseudo-continuous arterial spin labeling MRI at multiple post-labeling delays: accounting for both arterial transit time and impulse response function
    Qin Qin
    Russell H Morgan Department of Radiology and Radiological Science Division of MR Research, Johns Hopkins University School of Medicine, Baltimore, MD, USA F M Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, USA
    NMR Biomed 27:116-28. 2014
  9. pmc In vivo three-dimensional whole-brain pulsed steady-state chemical exchange saturation transfer at 7 T
    Craig K Jones
    Division of MR Research, Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 67:1579-89. 2012
  10. pmc Imaging of endogenous exchangeable proton signals in the human brain using frequency labeled exchange transfer imaging
    Nirbhay N Yadav
    Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
    Magn Reson Med 69:966-73. 2013

Collaborators

Detail Information

Publications16

  1. ncbi request reprint Implementation of vascular-space-occupancy MRI at 7T
    Jun Hua
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
    Magn Reson Med 69:1003-13. 2013
    ..Our initial functional MRI results in normal human brains at 7T with this optimized VASO sequence showed better signal-to-noise ratio than at 3T...
  2. pmc Measurement of absolute arterial cerebral blood volume in human brain without using a contrast agent
    Jun Hua
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
    NMR Biomed 24:1313-25. 2011
    ....
  3. pmc Physiological origin for the BOLD poststimulus undershoot in human brain: vascular compliance versus oxygen metabolism
    Jun Hua
    Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
    J Cereb Blood Flow Metab 31:1599-611. 2011
    ..Using a biophysical model, their relative contributions were estimated to be 19.7±15.9% and 78.7±18.6%, respectively...
  4. pmc Magnetization transfer enhanced vascular-space-occupancy (MT-VASO) functional MRI
    Jun Hua
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
    Magn Reson Med 61:944-51. 2009
    ..Therefore, MT-VASO should provide a means for increasing inherently low CNR in VASO experiments while preserving the CBV sensitivity...
  5. pmc Nuclear Overhauser enhancement (NOE) imaging in the human brain at 7T
    Craig K Jones
    Division of MR Research, Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
    Neuroimage 77:114-24. 2013
    ....
  6. pmc Inflow-based vascular-space-occupancy (iVASO) MRI
    Jun Hua
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
    Magn Reson Med 66:40-56. 2011
    ..The onset of the hemodynamic response for iVASO occurred 1.2 ± 0.5 s (n = 7) faster than for conventional VASO...
  7. pmc Effect of inflow of fresh blood on vascular-space-occupancy (VASO) contrast
    Manus J Donahue
    Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
    Magn Reson Med 61:473-80. 2009
    ..4% +/- 0.2%) than short-TR data (DeltaS/S = -2.2% +/- 0.2%), implying that cerebral blood flow or transit-state effects may influence VASO contrast at short TR...
  8. pmc Three-dimensional whole-brain perfusion quantification using pseudo-continuous arterial spin labeling MRI at multiple post-labeling delays: accounting for both arterial transit time and impulse response function
    Qin Qin
    Russell H Morgan Department of Radiology and Radiological Science Division of MR Research, Johns Hopkins University School of Medicine, Baltimore, MD, USA F M Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, USA
    NMR Biomed 27:116-28. 2014
    ..9 ± 0.4 s) are higher than the tissue T1 values, possibly reflecting a contribution from the microvascular arterial blood compartment...
  9. pmc In vivo three-dimensional whole-brain pulsed steady-state chemical exchange saturation transfer at 7 T
    Craig K Jones
    Division of MR Research, Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 67:1579-89. 2012
    ..Amide proton transfer effects ranged between 1.5% and 2.5% in selected white and grey matter regions. This power and time-efficient 3D pulsed CEST acquisition scheme should aid endogenous CEST quantification at both high and low fields...
  10. pmc Imaging of endogenous exchangeable proton signals in the human brain using frequency labeled exchange transfer imaging
    Nirbhay N Yadav
    Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
    Magn Reson Med 69:966-73. 2013
    ..To image endogenous exchangeable proton signals in the human brain using a recently reported method called frequency labeled exchange transfer (FLEX) MRI...
  11. pmc The BOLD post-stimulus undershoot, one of the most debated issues in fMRI
    Peter C M van Zijl
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
    Neuroimage 62:1092-102. 2012
    ..The relative contribution of these different processes, which are not mutually exclusive and can act together, is likely to vary with stimulus duration and type...
  12. pmc Elevated arteriolar cerebral blood volume in prodromal Huntington's disease
    Jun Hua
    The Russell H Morgan Department of Radiology and Radiological Science, Division of Magnetic Resonance Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA F M Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland, USA
    Mov Disord 29:396-401. 2014
    ..The objective of this pilot study was to investigate potential neurovascular (CBVa ) abnormality in prodromal-HD patients and compare it with the widely used imaging marker: brain atrophy...
  13. pmc Practical data acquisition method for human brain tumor amide proton transfer (APT) imaging
    Jinyuan Zhou
    Division of MR Research, Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
    Magn Reson Med 60:842-9. 2008
    ..In high-grade tumors, regions of increased APT extended outside of the core into peripheral zones, indicating the potential of this technique for more accurate delineation of the heterogeneous areas of brain cancers...
  14. ncbi request reprint Prefrontal executive function associated coupling relates to Huntington's disease stage
    Paul G Unschuld
    Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA Division of Psychiatry Research and Psychogeriatric Medicine, University of Zurich, Zurich, Switzerland Electronic address
    Cortex 49:2661-73. 2013
    ..Additional longitudinal studies may reveal temporal relationships between impaired task-related premotor-MPFC coupling and other brain changes in HD. ..
  15. pmc Efficient and robust identification of cortical targets in concurrent TMS-fMRI experiments
    Jeffrey M Yau
    Department of Neurology, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
    Neuroimage 76:134-44. 2013
    ..Notably, this method can be used generally to identify the position and orientation of MR-compatible hardware placed near the head in the MR scanner...
  16. pmc Quantitative description of the asymmetry in magnetization transfer effects around the water resonance in the human brain
    Jun Hua
    Department of Radiology, Division of MRI Research, Neurosection, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205 2109, USA
    Magn Reson Med 58:786-93. 2007
    ..For white matter, this shift was fitted to be 2.34 +/- 0.17 ppm (N = 5) upfield from the water signal...