Qin Qin

Summary

Affiliation: Johns Hopkins University
Country: USA

Publications

  1. pmc Velocity-selective-inversion prepared arterial spin labeling
    Qin Qin
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 76:1136-48. 2016
  2. pmc Point spread functions of the T2 decay in k-space trajectories with long echo train
    Qin Qin
    The Russell H Morgan Department of Radiology and Radiological Science, Neuro Section, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
    Magn Reson Imaging 30:1134-42. 2012
  3. pmc Quantitative T2 measurement of a single voxel with arbitrary shape using pinwheel excitation and CPMG acquisition
    Qin Qin
    Department of Biomedical Engineering, Yale University, New Haven, CT, USA
    MAGMA 20:233-40. 2007
  4. doi A simple approach for three-dimensional mapping of baseline cerebrospinal fluid volume fraction
    Qin Qin
    Neuro Section, Division of MR Research, The Russell H Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 65:385-91. 2011
  5. pmc Determination of whole-brain oxygen extraction fractions by fast measurement of blood T(2) in the jugular vein
    Qin Qin
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 65:471-9. 2011
  6. pmc Fast measurement of blood T1 in the human jugular vein at 3 Tesla
    Qin Qin
    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 65:1297-304. 2011
  7. pmc 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
  8. pmc Steady pulsed imaging and labeling scheme for noninvasive perfusion imaging
    Jiadi Xu
    Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 75:238-48. 2016
  9. 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
  10. pmc Quantitative theory for the longitudinal relaxation time of blood water
    Wenbo Li
    Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 76:270-81. 2016

Collaborators

Detail Information

Publications22

  1. pmc Velocity-selective-inversion prepared arterial spin labeling
    Qin Qin
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 76:1136-48. 2016
    ..To develop a Fourier-transform based velocity-selective inversion (FT-VSI) pulse train for velocity-selective arterial spin labeling (VSASL)...
  2. pmc Point spread functions of the T2 decay in k-space trajectories with long echo train
    Qin Qin
    The Russell H Morgan Department of Radiology and Radiological Science, Neuro Section, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
    Magn Reson Imaging 30:1134-42. 2012
    ..Optimum T(k)/T(2) ratios to achieve maximum SNR per unit time were 1.2 for the Cartesian trajectory and 0.8 for the spiral trajectory...
  3. pmc Quantitative T2 measurement of a single voxel with arbitrary shape using pinwheel excitation and CPMG acquisition
    Qin Qin
    Department of Biomedical Engineering, Yale University, New Haven, CT, USA
    MAGMA 20:233-40. 2007
    ....
  4. doi A simple approach for three-dimensional mapping of baseline cerebrospinal fluid volume fraction
    Qin Qin
    Neuro Section, Division of MR Research, The Russell H Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 65:385-91. 2011
    ..Conversely, when comparing with the proposed approach, large overestimation of segmentation based method using T(1) -weighted images is found, and the underlying causes are suggested...
  5. pmc Determination of whole-brain oxygen extraction fractions by fast measurement of blood T(2) in the jugular vein
    Qin Qin
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 65:471-9. 2011
    ..Using this calibration, a whole-brain oxygen extraction fraction of 0.37 ± 0.04 was determined (n = 20), in excellent agreement with literature values...
  6. pmc Fast measurement of blood T1 in the human jugular vein at 3 Tesla
    Qin Qin
    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 65:1297-304. 2011
    ..Interestingly, however, studies done on sickle cell anemia patients with much lower Hct (23 ± 3%, n = 10) revealed similar venous blood T(1) = 1924 ± 82 msec, indicating other possible physical influences affecting blood T(1)...
  7. pmc 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...
  8. pmc Steady pulsed imaging and labeling scheme for noninvasive perfusion imaging
    Jiadi Xu
    Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 75:238-48. 2016
    ..A steady pulsed imaging and labeling (SPIL) scheme is proposed to obtain high-resolution multislice perfusion images of mice brain using standard preclinical MRI equipment...
  9. 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
    ....
  10. pmc Quantitative theory for the longitudinal relaxation time of blood water
    Wenbo Li
    Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 76:270-81. 2016
    ..To propose and evaluate a model for the blood water T1 that takes into account the effects of hematocrit fraction, oxygenation fraction, erythrocyte hemoglobin concentration, methemoglobin fraction, and plasma albumin concentration...
  11. pmc Whole-brain three-dimensional T2-weighted BOLD functional magnetic resonance imaging at 7 Tesla
    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, USA F M Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland, USA
    Magn Reson Med 72:1530-40. 2014
    ..A new acquisition scheme for T2-weighted spin-echo BOLD fMRI is introduced...
  12. doi A Three-dimensional Single-scan Approach for the Measurement of Changes in Cerebral Blood Volume, Blood Flow, and Blood Oxygenation-weighted Signals during Functional Stimulation
    Ying Cheng
    F M Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, USA Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA Electronic address
    Neuroimage . 2016
    ....
  13. pmc Fast measurement of blood T1 in the human carotid artery at 3T: Accuracy, precision, and reproducibility
    Wenbo Li
    Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med . 2016
    ..To develop a fast protocol for measuring T1 values in the internal carotid artery (ICA), to validate this technique with in vitro measurements, and to evaluate its reproducibility...
  14. doi Transverse water relaxation in whole blood and erythrocytes at 3T, 7T, 9.4T, 11.7T and 16.4T; determination of intracellular hemoglobin and extracellular albumin relaxivities
    Ksenija Grgac
    The Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA F M Kirby Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, USA
    Magn Reson Imaging . 2016
    ..The extensive data set presented should be useful for future theory development for the transverse relaxation of blood...
  15. pmc Velocity-selective magnetization-prepared non-contrast-enhanced cerebral MR angiography at 3 Tesla: Improved immunity to B0/B1 inhomogeneity
    Qin Qin
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Magn Reson Med 75:1232-41. 2016
    ..To develop a Fourier-transform based velocity-selective (VS) pulse train that offers improved robustness to B0/B1 inhomogeneity for non-contrast-enhanced cerebral MR angiography (MRA) at 3 Tesla (T)...
  16. pmc Natural D-glucose as a biodegradable MRI relaxation agent
    Nirbhay N Yadav
    Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA F M Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Research Institute, Baltimore, Maryland, USA
    Magn Reson Med 72:823-8. 2014
    ..Demonstrate applicability of natural D-glucose as a T2 MRI contrast agent...
  17. 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...
  18. pmc Hematocrit and oxygenation dependence of blood (1)H(2)O T(1) at 7 Tesla
    Ksenija Grgac
    The Russell H Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA F M Kirby Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland, USA
    Magn Reson Med 70:1153-9. 2013
    ..It is discussed why blood (1)H2O T1 values measured in vivo for human blood may be about 10-20% larger than found in vitro for bovine blood at the same field strength...
  19. 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...
  20. ncbi 2D arbitrary shape-selective excitation summed spectroscopy (ASSESS)
    Qin Qin
    Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06520 8043, USA
    Magn Reson Med 58:19-26. 2007
    ..The technique is described and compared with existing localization methods, and in vivo results are demonstrated...
  21. pmc Identification and reduction of image artifacts in non-contrast-enhanced velocity-selective peripheral angiography at 3T
    Taehoon Shin
    Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland, Baltimore, Maryland, USA
    Magn Reson Med 76:466-77. 2016
    ..To identify and reduce image artifacts in non-contrast-enhanced velocity-selective (VS) magnetization-prepared peripheral MR angiography (MRA) at 3T...
  22. doi Intracranial arterial wall imaging using three-dimensional high isotropic resolution black blood MRI at 3.0 Tesla
    Ye Qiao
    The Russell H Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins Hospital, Baltimore, Maryland, USA
    J Magn Reson Imaging 34:22-30. 2011
    ..To develop a high isotropic-resolution sequence to evaluate intracranial vessels at 3.0 Tesla (T)...