S Posse

Summary

Affiliation: Wayne State University
Country: USA

Publications

  1. ncbi request reprint Real-time fMRI of temporolimbic regions detects amygdala activation during single-trial self-induced sadness
    Stefan Posse
    Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, 4201 St Antoine, University Health Center 9B, Detroit, MI 48201, USA
    Neuroimage 18:760-8. 2003
  2. ncbi request reprint A new approach to measure single-event related brain activity using real-time fMRI: feasibility of sensory, motor, and higher cognitive tasks
    S Posse
    Institute of Medicine, Research Center Jülich GmbH, Germany
    Hum Brain Mapp 12:25-41. 2001
  3. ncbi request reprint Single-shot T(2)* mapping with 3D compensation of local susceptibility gradients in multiple regions
    Stefan Posse
    Department of Psychiatry and Behavioral Neuroscience, Wayne State University, 4201 St Antoine, University Health Center 9B 26, Detroit, MI 48201, USA
    Neuroimage 18:390-400. 2003
  4. ncbi request reprint Effect of graded hypo- and hypercapnia on fMRI contrast in visual cortex: quantification of T(*)(2) changes by multiecho EPI
    S Posse
    Institute of Medicine, , , Germany
    Magn Reson Med 46:264-71. 2001
  5. ncbi request reprint Evaluation of motion and realignment for functional magnetic resonance imaging in real time
    K Mathiak
    Research Center Julich, Institute of Medicine, Julich, Germany
    Magn Reson Med 45:167-71. 2001
  6. ncbi request reprint Real-time fMRI of cortico-limbic brain activity during emotional processing
    K Luan Phan
    Brain Imaging Research Division, Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, 9B University Health Center Rm 18, 4201 St Antoine Blvd, Detroit, MI 48201, USA
    Neuroreport 15:527-32. 2004
  7. ncbi request reprint Intensity coding of auditory stimuli: an fMRI study
    L Jancke
    Research Center Julich, Institute of Medicine, Germany
    Neuropsychologia 36:875-83. 1998
  8. ncbi request reprint Functional magnetic resonance imaging in real time (FIRE): sliding-window correlation analysis and reference-vector optimization
    D Gembris
    Institute of Medicine, Research Center Jülich GmbH, Germany
    Magn Reson Med 43:259-68. 2000
  9. ncbi request reprint Effect of respiratory CO(2) changes on the temporal dynamics of the hemodynamic response in functional MR imaging
    L J Kemna
    Institute of Medicine, , , Germany
    Neuroimage 14:642-9. 2001
  10. ncbi request reprint Analytical model of susceptibility-induced MR signal dephasing: effect of diffusion in a microvascular network
    V G Kiselev
    Institute of Medicine, Research Center Jülich GmbH, Germany
    Magn Reson Med 41:499-509. 1999

Collaborators

Detail Information

Publications21

  1. ncbi request reprint Real-time fMRI of temporolimbic regions detects amygdala activation during single-trial self-induced sadness
    Stefan Posse
    Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, 4201 St Antoine, University Health Center 9B, Detroit, MI 48201, USA
    Neuroimage 18:760-8. 2003
    ....
  2. ncbi request reprint A new approach to measure single-event related brain activity using real-time fMRI: feasibility of sensory, motor, and higher cognitive tasks
    S Posse
    Institute of Medicine, Research Center Jülich GmbH, Germany
    Hum Brain Mapp 12:25-41. 2001
    ..Real-time fMRI can improve reliability of clinical and research studies and offers new opportunities for studying higher cognitive functions...
  3. ncbi request reprint Single-shot T(2)* mapping with 3D compensation of local susceptibility gradients in multiple regions
    Stefan Posse
    Department of Psychiatry and Behavioral Neuroscience, Wayne State University, 4201 St Antoine, University Health Center 9B 26, Detroit, MI 48201, USA
    Neuroimage 18:390-400. 2003
    ..3 ms. A CO(2) challenge paradigm was used to demonstrate that this gradient compensation method significantly enhances BOLD signal changes in amygdala as compared to conventional echo-planar imaging (EPI) and uncompensated TurboPEPSI...
  4. ncbi request reprint Effect of graded hypo- and hypercapnia on fMRI contrast in visual cortex: quantification of T(*)(2) changes by multiecho EPI
    S Posse
    Institute of Medicine, , , Germany
    Magn Reson Med 46:264-71. 2001
    ..This study further emphasizes that global CBF changes (due to PETCO(2) changes even in the physiological range) strongly influence fMRI contrast and need to be controlled for...
  5. ncbi request reprint Evaluation of motion and realignment for functional magnetic resonance imaging in real time
    K Mathiak
    Research Center Julich, Institute of Medicine, Julich, Germany
    Magn Reson Med 45:167-71. 2001
    ..As the estimation of large movements is stable, this algorithm is attractive for clinical studies with uncooperative patients. Magn Reson Med 45:167-171, 2001...
  6. ncbi request reprint Real-time fMRI of cortico-limbic brain activity during emotional processing
    K Luan Phan
    Brain Imaging Research Division, Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, 9B University Health Center Rm 18, 4201 St Antoine Blvd, Detroit, MI 48201, USA
    Neuroreport 15:527-32. 2004
    ..Detecting cortico-limbic brain activation during perception and experience of emotionally salient visual stimuli with real-time fMRI technology is feasible...
  7. ncbi request reprint Intensity coding of auditory stimuli: an fMRI study
    L Jancke
    Research Center Julich, Institute of Medicine, Germany
    Neuropsychologia 36:875-83. 1998
    ..The results presented here should assist in the design of optimal activation strategies for studying the auditory cortex with fMRI paradigms and may help in understanding intensity coding of auditory stimuli...
  8. ncbi request reprint Functional magnetic resonance imaging in real time (FIRE): sliding-window correlation analysis and reference-vector optimization
    D Gembris
    Institute of Medicine, Research Center Jülich GmbH, Germany
    Magn Reson Med 43:259-68. 2000
    ..Based on the described correlation method, real-time fMRI experiments using visual stimulation paradigms have been performed successfully on a clinical MR scanner, which was linked to an external workstation for image analysis...
  9. ncbi request reprint Effect of respiratory CO(2) changes on the temporal dynamics of the hemodynamic response in functional MR imaging
    L J Kemna
    Institute of Medicine, , , Germany
    Neuroimage 14:642-9. 2001
    ..The relevance of these findings for the temporal resolution of fMRI and especially of event-related methods is discussed...
  10. ncbi request reprint Analytical model of susceptibility-induced MR signal dephasing: effect of diffusion in a microvascular network
    V G Kiselev
    Institute of Medicine, Research Center Jülich GmbH, Germany
    Magn Reson Med 41:499-509. 1999
    ..The model presented agrees within its validity domain with a known Monte Carlo simulation...
  11. ncbi request reprint Proton echo-planar spectroscopic imaging with highly effective outer volume suppression using combined presaturation and spatially selective echo dephasing
    Archie Chu
    Department of Psychiatry and Behavioral Neurosciences, Wayne State University, Detroit, Michigan, USA
    Magn Reson Med 49:817-21. 2003
    ..Metabolite mapping (choline, creatine, and NAA) with a 64 x 64 spatial matrix and 0.3 cm(3) voxels in close proximity to peripheral lipid regions was demonstrated at 1.5 T with a scan time of 32 min using the standard head coil...
  12. ncbi request reprint Proton echo-planar spectroscopic imaging of J-coupled resonances in human brain at 3 and 4 Tesla
    Stefan Posse
    Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque, New Mexico 87131, USA
    Magn Reson Med 58:236-44. 2007
    ..Glu concentration was significantly higher in gray matter (GM) compared to white matter (WM), as anticipated. The short acquisition time makes this methodology suitable for clinical studies...
  13. ncbi request reprint fMRI pattern classification using neuroanatomically constrained boosting
    Manel Martínez-Ramón
    Department of Electrical and Computer Engineering, University of New Mexico, NM 87131, USA
    Neuroimage 31:1129-41. 2006
    ..The high computational speed of boosting classification makes it attractive for real-time fMRI to facilitate online interpretation of dynamically changing activation patterns...
  14. ncbi request reprint Neural correlates of internally-generated disgust via autobiographical recall: a functional magnetic resonance imaging investigation
    Daniel A Fitzgerald
    Clinical Neuroscience and Psychopharmacology Research Unit, Department of Psychiatry, University of Chicago, Chicago, IL, USA
    Neurosci Lett 370:91-6. 2004
    ..These findings suggest that areas previously associated with the perception of disgust (e.g., insula, basal ganglia) are also involved interoceptive experience of disgust...
  15. ncbi request reprint Activation of cerebellar hemispheres in spatial memorization of saccadic eye movements: an fMRI study
    Matthias F Nitschke
    Department of Neurology, University Hospital Schleswig Holstein, Campus Lubeck, Lubeck, Germany
    Hum Brain Mapp 22:155-64. 2004
    ....
  16. ncbi request reprint Accelerated short-TE 3D proton echo-planar spectroscopic imaging using 2D-SENSE with a 32-channel array coil
    Ricardo Otazo
    Electrical and Computer Engineering Department, University of New Mexico, Albuquerque, New Mexico 87131, USA
    Magn Reson Med 58:1107-16. 2007
    ..The short acquisition time makes the method suitable for volumetric metabolite mapping in clinical studies...
  17. ncbi request reprint Fast mapping of the T2 relaxation time of cerebral metabolites using proton echo-planar spectroscopic imaging (PEPSI)
    Shang Yueh Tsai
    Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
    Magn Reson Med 57:859-65. 2007
    ..Consistent spatial distributions of T2 were found in six healthy subjects, and disagreement among subjects was less than 10%. In summary, the PEPSI technique is a robust method to obtain fast mapping of metabolite T2...
  18. ncbi request reprint Sensitivity-encoded (SENSE) proton echo-planar spectroscopic imaging (PEPSI) in the human brain
    Fa Hsuan Lin
    MGH HMS MIT Athinoula A Martinos Center for Biomedical Imaging, Charlestown 02129, and Department of Radiology, Massachusetts General Hospital, Boston, USA
    Magn Reson Med 57:249-57. 2007
    ..Thus, this technology is a promising means of reducing the scan times of 3D acquisitions and time-resolved 2D measurements...
  19. ncbi request reprint Signal-to-noise ratio and spectral linewidth improvements between 1.5 and 7 Tesla in proton echo-planar spectroscopic imaging
    Ricardo Otazo
    MIND Institute, Albuquerque, New Mexico 87131, USA
    Magn Reson Med 56:1200-10. 2006
    ..These studies using PEPSI demonstrated linear gains in SNR with respect to B(0), consistent with theoretical expectations, and a decrease in ppm LW with increasing B(0)...
  20. ncbi request reprint Reproducibility of activation in Broca's area during covert generation of single words at high field: a single trial FMRI study at 4 T
    Andrew R Mayer
    The MIND Institute, 1101 Yale Boulevard N E, Albuquerque, NM 87131, USA
    Neuroimage 32:129-37. 2006
    ..Additional benefits of single trial designs, such as the ability to immediately assess for extraneous cognitive processes, are also discussed...
  21. doi request reprint Accelerated proton echo planar spectroscopic imaging (PEPSI) using GRAPPA with a 32-channel phased-array coil
    Shang Yueh Tsai
    Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
    Magn Reson Med 59:989-98. 2008
    ..At 4-fold acceleration the mean CRLB for NAA, tCr, and Cho was less than 11%. In conclusion, the use of a 32-channel coil array and GRAPPA reconstruction can significantly reduce the measurement time for mapping brain metabolites...