Aaron S Field

Summary

Affiliation: University of Wisconsin
Country: USA

Publications

  1. ncbi request reprint Dietary caffeine consumption and withdrawal: confounding variables in quantitative cerebral perfusion studies?
    Aaron S Field
    Division of Radiological Sciences, Wake Forest University School of Medicine, Winston Salem, NC, USA
    Radiology 227:129-35. 2003
  2. ncbi request reprint Relationship between caffeine-induced changes in resting cerebral perfusion and blood oxygenation level-dependent signal
    Paul J Laurienti
    Department of Radiology, Wake Forest University School of Medicine, Winston Salem, NC 27157, USA
    AJNR Am J Neuroradiol 24:1607-11. 2003
  3. ncbi request reprint Dietary caffeine consumption modulates fMRI measures
    Paul J Laurienti
    Department of Radiology, Wake Forest University School of Medicine, Winston Salem, North Carolina 27157 1022, USA
    Neuroimage 17:751-7. 2002
  4. ncbi request reprint Test-retest reproducibility of quantitative CBF measurements using FAIR perfusion MRI and acetazolamide challenge
    Yi Fen Yen
    Department of Medical Engineering, Wake Forest University School of Medicine, Winston Salem, North Carolina, USA
    Magn Reson Med 47:921-8. 2002
  5. ncbi request reprint Diffusion tensor imaging in cerebral tumor diagnosis and therapy
    Aaron S Field
    Departments of Radiology and Biomedical Engineering, University of Wisconsin, Madison, WI, USA
    Top Magn Reson Imaging 15:315-24. 2004
  6. ncbi request reprint Principal diffusion direction in peritumoral fiber tracts: Color map patterns and directional statistics
    Aaron S Field
    Department of Radiology, University of Wisconsin, 600 Highland Avenue, CSC E3 311, Madison, WI 53792, USA
    Ann N Y Acad Sci 1064:193-201. 2005
  7. ncbi request reprint Diffusion tensor eigenvector directional color imaging patterns in the evaluation of cerebral white matter tracts altered by tumor
    Aaron S Field
    Department of Radiology, University of Wisconsin Medical School, Madison, Wisconsin 53792 3252, USA
    J Magn Reson Imaging 20:555-62. 2004
  8. ncbi request reprint Comparison of diffusion tensor imaging measurements at 3.0 T versus 1.5 T with and without parallel imaging
    Andrew L Alexander
    Department of Medical Physics, University of Wisconsin, Madison, WI 53706, USA
    Neuroimaging Clin N Am 16:299-309, xi. 2006
  9. pmc Computation of diffusion function measures in q-space using magnetic resonance hybrid diffusion imaging
    Yu Chien Wu
    Department of Radiology, University of Wisconsin Madison, 600 Highland Ave, Madison, WI 53792, USA
    IEEE Trans Med Imaging 27:858-65. 2008
  10. pmc Diffusion tensor imaging of the brain
    Andrew L Alexander
    Department of Medical Physics, University of Wisconsin Madison, Madison, Wisconsin 53706, USA
    Neurotherapeutics 4:316-29. 2007

Detail Information

Publications20

  1. ncbi request reprint Dietary caffeine consumption and withdrawal: confounding variables in quantitative cerebral perfusion studies?
    Aaron S Field
    Division of Radiological Sciences, Wake Forest University School of Medicine, Winston Salem, NC, USA
    Radiology 227:129-35. 2003
    ..To evaluate the effects of dietary caffeine intake and withdrawal on cerebral blood flow (CBF), as determined from a randomized, blinded, placebo-controlled study...
  2. ncbi request reprint Relationship between caffeine-induced changes in resting cerebral perfusion and blood oxygenation level-dependent signal
    Paul J Laurienti
    Department of Radiology, Wake Forest University School of Medicine, Winston Salem, NC 27157, USA
    AJNR Am J Neuroradiol 24:1607-11. 2003
    ..The present study was designed to determine whether caffeine-induced decreases in cerebral perfusion result in enhanced BOLD responses to visual and auditory stimuli...
  3. ncbi request reprint Dietary caffeine consumption modulates fMRI measures
    Paul J Laurienti
    Department of Radiology, Wake Forest University School of Medicine, Winston Salem, North Carolina 27157 1022, USA
    Neuroimage 17:751-7. 2002
    ..We propose that the outcome observed here was due to an upregulation of adenosine receptors in high users, resulting in differential contributions of the neural and vascular effects of adenosine in the two study populations...
  4. ncbi request reprint Test-retest reproducibility of quantitative CBF measurements using FAIR perfusion MRI and acetazolamide challenge
    Yi Fen Yen
    Department of Medical Engineering, Wake Forest University School of Medicine, Winston Salem, North Carolina, USA
    Magn Reson Med 47:921-8. 2002
    ..The hemispheric asymmetry of baseline CBF and post-acetazolamide CBF increases varied within a narrower range and should be sensitive to small changes related to disease or treatment...
  5. ncbi request reprint Diffusion tensor imaging in cerebral tumor diagnosis and therapy
    Aaron S Field
    Departments of Radiology and Biomedical Engineering, University of Wisconsin, Madison, WI, USA
    Top Magn Reson Imaging 15:315-24. 2004
    ....
  6. ncbi request reprint Principal diffusion direction in peritumoral fiber tracts: Color map patterns and directional statistics
    Aaron S Field
    Department of Radiology, University of Wisconsin, 600 Highland Avenue, CSC E3 311, Madison, WI 53792, USA
    Ann N Y Acad Sci 1064:193-201. 2005
    ..These examples serve to demonstrate our approach to the quantitation of regional diffusion tensor distributions using directional statistical methods...
  7. ncbi request reprint Diffusion tensor eigenvector directional color imaging patterns in the evaluation of cerebral white matter tracts altered by tumor
    Aaron S Field
    Department of Radiology, University of Wisconsin Medical School, Madison, Wisconsin 53792 3252, USA
    J Magn Reson Imaging 20:555-62. 2004
    ..To categorize the varied appearances of tumor-altered white matter (WM) tracts on diffusion tensor eigenvector directional color maps...
  8. ncbi request reprint Comparison of diffusion tensor imaging measurements at 3.0 T versus 1.5 T with and without parallel imaging
    Andrew L Alexander
    Department of Medical Physics, University of Wisconsin, Madison, WI 53706, USA
    Neuroimaging Clin N Am 16:299-309, xi. 2006
    ..5 T to 3.0 T, but was reduced by 50% when using parallel imaging. In summary, DTI studies at 3.0 T using parallel imaging will provide significantly improved DTI measurements relative to studies at 1.5 T...
  9. pmc Computation of diffusion function measures in q-space using magnetic resonance hybrid diffusion imaging
    Yu Chien Wu
    Department of Radiology, University of Wisconsin Madison, 600 Highland Ave, Madison, WI 53792, USA
    IEEE Trans Med Imaging 27:858-65. 2008
    ..Although this study focused on data using the HYDI scheme, this computation approach may be applied to other diffusion sampling schemes including Cartesian diffusion spectrum imaging...
  10. pmc Diffusion tensor imaging of the brain
    Andrew L Alexander
    Department of Medical Physics, University of Wisconsin Madison, Madison, Wisconsin 53706, USA
    Neurotherapeutics 4:316-29. 2007
    ..g., radial or axial). To maximize the specificity and better characterize the tissue microstructure, future studies should use multiple diffusion tensor measures (e.g., MD and FA, or D(a) and D(r))...
  11. ncbi request reprint Advances in locally constrained k-space-based parallel MRI
    Alexey A Samsonov
    Department of Radiology, University of Wisconsin Madison, Madison, WI 53792 1790, USA
    Magn Reson Med 55:431-8. 2006
    ..The new technique was demonstrated with simulated and actual data sampled on radial trajectories...
  12. ncbi request reprint Deactivation of sensory-specific cortex by cross-modal stimuli
    Paul J Laurienti
    Department of Radiology, Wake Forest University School of Medicine, Medical Center Boulevard, Winston Salem, NC 27157, USA
    J Cogn Neurosci 14:420-9. 2002
    ..These data suggest that cross-modal inhibitory processes operate within traditional modality-specific cortices and that these processes can be switched on or off in different circumstances...
  13. ncbi request reprint Diffusion tensor imaging at the crossroads: fiber tracking meets tissue characterization in brain tumors
    Aaron S Field
    AJNR Am J Neuroradiol 26:2168-9. 2005
  14. ncbi request reprint Quantitative analysis of diffusion tensor orientation: theoretical framework
    Yu Chien Wu
    Department of Medical Physics, University of Wisconsin, Madison 53705, USA
    Magn Reson Med 52:1146-55. 2004
    ..This novel approach distills the rich, 3D information available from the diffusion tensor into a form that lends itself to quantitative analysis and statistical hypothesis testing...
  15. ncbi request reprint Diffusion tensor imaging of cerebral white matter: a pictorial review of physics, fiber tract anatomy, and tumor imaging patterns
    Brian J Jellison
    Department of Radiology, University of Wisconsin Hospital and Clinics, 600 Highland Avenue, E3 311 CSC, Madison, WI 53792 3252, USA
    AJNR Am J Neuroradiol 25:356-69. 2004
  16. ncbi request reprint Physiologic characterisation of glioblastoma multiforme using MRI-based hypoxia mapping, chemical shift imaging, perfusion and diffusion maps
    Kathryn M McMillan
    Department of Medical Physics, University of Wisconsin, Madison, WI, USA
    J Clin Neurosci 13:811-7. 2006
    ..Diffusion-weighted images were reduced to apparent diffusion coefficient (ADC) maps to evaluate cellularity, and blood oxygen level-dependent imaging was used to create maps of putative hypoxic regions...
  17. ncbi request reprint Myelin water fraction in human cervical spinal cord in vivo
    Yijing Wu
    Department of Medical Physics, University of Wisconsin Medical School, Madison, WI 53792 3252, USA
    J Comput Assist Tomogr 30:304-6. 2006
    ..This technical note reports the test-retest reproducibility of a short T2-based estimate of myelin content in human spinal cord in vivo...
  18. ncbi request reprint Diffusion tensor imaging in an infant with traumatic brain swelling
    Aaron S Field
    Department of Radiology, University of Wisconsin Medical School, Madison, Wisconsin 53792 3252, USA
    AJNR Am J Neuroradiol 24:1461-4. 2003
    ..This case engenders important hypotheses regarding mechanisms of traumatic brain swelling and anisotropic diffusion of water in pathologic tissues...
  19. ncbi request reprint Variability of clinical CT perfusion measurements in patients with carotid stenosis
    Aquilla S Turk
    Department of Radiology, University of Wisconsin Hospital and Clinics, Madison, WI, USA
    Neuroradiology 49:955-61. 2007
    ..The magnitude of variability in clinical measurements has been insufficiently evaluated. The purpose of this study was to measure the long-term variability of clinical pCT measurements in patients with cerebrovascular disease...
  20. ncbi request reprint Diffusion tensor imaging of the corticospinal tract before and after mass resection as correlated with clinical motor findings: preliminary data
    Bryan J Laundre
    Department of Radiology, University of Wisconsin Medical School, Madison, WI 53792 3252, USA
    AJNR Am J Neuroradiol 26:791-6. 2005
    ..To that end, we sought correlations between preoperative and postoperative DTI and clinical motor deficits in patients with space-occupying lesions involving the corticospinal tract (CST)...