B A Poser

Summary

Publications

  1. doi Exploring the post-stimulus undershoot with spin-echo fMRI: implications for models of neurovascular response
    Benedikt A Poser
    Erwin L Hahn Institute for Magnetic Resonance Imaging, University Duisburg Essen, Essen, Germany
    Hum Brain Mapp 32:141-53. 2011
  2. doi Application of whole-brain CBV-weighted fMRI to a cognitive stimulation paradigm: robust activation detection in a stroop task experiment using 3D GRASE VASO
    Benedikt A Poser
    Erwin L Hahn Institute for Magnetic Resonance Imaging, University Duisburg Essen, Essen, Germany
    Hum Brain Mapp 32:974-81. 2011
  3. doi 3D single-shot VASO using a Maxwell gradient compensated GRASE sequence
    Benedikt A Poser
    Erwin L Hahn Institute for Magnetic Resonance Imaging, University Duisburg Essen, Essen, Germany
    Magn Reson Med 62:255-62. 2009
  4. pmc Three dimensional echo-planar imaging at 7 Tesla
    B A Poser
    Erwin L Hahn Institute for Magnetic Resonance Imaging, University Duisburg Essen, Essen, Germany
    Neuroimage 51:261-6. 2010
  5. ncbi BOLD contrast sensitivity enhancement and artifact reduction with multiecho EPI: parallel-acquired inhomogeneity-desensitized fMRI
    Benedikt A Poser
    FC Donders Centre for Cognitive Neuroimaging, Nijmegen, The Netherlands
    Magn Reson Med 55:1227-35. 2006
  6. doi A dual echo approach to removing motion artefacts in fMRI time series
    Pieter F Buur
    Donders Institute for Brain, Cognition and Behaviour, Donders Centre for Cognitive Neuroimaging, Radboud University Nijmegen, Nijmegen, The Netherlands
    NMR Biomed 22:551-60. 2009
  7. doi Investigating the benefits of multi-echo EPI for fMRI at 7 T
    Benedikt A Poser
    Erwin L Hahn Institute for Magnetic Resonance Imaging, University Duisburg Essen, Essen Germany
    Neuroimage 45:1162-72. 2009
  8. doi Time-interleaved acquisition of modes: an analysis of SAR and image contrast implications
    S Orzada
    University Duisburg Essen, Essen, Germany
    Magn Reson Med 67:1033-41. 2012
  9. pmc Measurement of activation-related changes in cerebral blood volume: VASO with single-shot HASTE acquisition
    Benedikt A Poser
    FC Donders Centre for Cognitive Neuroimaging, Nijmegen, The Netherlands
    MAGMA 20:63-7. 2007
  10. pmc Fast spin echo sequences for BOLD functional MRI
    Benedikt A Poser
    FC Donders Centre for Cognitive Neuroimaging, Trigon 181, P O Box 9101, 6500 HB, Nijmegen, The Netherlands
    MAGMA 20:11-7. 2007

Collaborators

Detail Information

Publications10

  1. doi Exploring the post-stimulus undershoot with spin-echo fMRI: implications for models of neurovascular response
    Benedikt A Poser
    Erwin L Hahn Institute for Magnetic Resonance Imaging, University Duisburg Essen, Essen, Germany
    Hum Brain Mapp 32:141-53. 2011
    ..In addition, we found that an 'arteriolar balloon' (delayed arterial compliance) may provide a plausible explanation for the temporal characteristics of the BOLD undershoot...
  2. doi Application of whole-brain CBV-weighted fMRI to a cognitive stimulation paradigm: robust activation detection in a stroop task experiment using 3D GRASE VASO
    Benedikt A Poser
    Erwin L Hahn Institute for Magnetic Resonance Imaging, University Duisburg Essen, Essen, Germany
    Hum Brain Mapp 32:974-81. 2011
    ....
  3. doi 3D single-shot VASO using a Maxwell gradient compensated GRASE sequence
    Benedikt A Poser
    Erwin L Hahn Institute for Magnetic Resonance Imaging, University Duisburg Essen, Essen, Germany
    Magn Reson Med 62:255-62. 2009
    ..39% and -6.93). The method makes it possible to perform whole-brain cognitive activation studies based on CBV contrast...
  4. pmc Three dimensional echo-planar imaging at 7 Tesla
    B A Poser
    Erwin L Hahn Institute for Magnetic Resonance Imaging, University Duisburg Essen, Essen, Germany
    Neuroimage 51:261-6. 2010
    ..From our results, and several other practical advantages of 3D over 2D EPI found in the present study, we conclude that 3D EPI provides a useful alternative for whole-brain fMRI at 7 T, not only when high-resolution data are required...
  5. ncbi BOLD contrast sensitivity enhancement and artifact reduction with multiecho EPI: parallel-acquired inhomogeneity-desensitized fMRI
    Benedikt A Poser
    FC Donders Centre for Cognitive Neuroimaging, Nijmegen, The Netherlands
    Magn Reson Med 55:1227-35. 2006
    ..The use of parallel imaging markedly reduces image distortion, and hence the method should find widespread application in functional brain imaging...
  6. doi A dual echo approach to removing motion artefacts in fMRI time series
    Pieter F Buur
    Donders Institute for Brain, Cognition and Behaviour, Donders Centre for Cognitive Neuroimaging, Radboud University Nijmegen, Nijmegen, The Netherlands
    NMR Biomed 22:551-60. 2009
    ..5 and 3 T show improvements in functional activation maps for individual subjects. The method is straightforward to implement, does not require extra scan time and can easily be embedded in a multi-echo acquisition framework...
  7. doi Investigating the benefits of multi-echo EPI for fMRI at 7 T
    Benedikt A Poser
    Erwin L Hahn Institute for Magnetic Resonance Imaging, University Duisburg Essen, Essen Germany
    Neuroimage 45:1162-72. 2009
    ..The results at typical spatial resolution show that multi-echo EPI acquisition leads to considerable artifact reduction and sensitivity gains, making it superior to conventional GE-EPI for fMRI at 7 T...
  8. doi Time-interleaved acquisition of modes: an analysis of SAR and image contrast implications
    S Orzada
    University Duisburg Essen, Essen, Germany
    Magn Reson Med 67:1033-41. 2012
    ....
  9. pmc Measurement of activation-related changes in cerebral blood volume: VASO with single-shot HASTE acquisition
    Benedikt A Poser
    FC Donders Centre for Cognitive Neuroimaging, Nijmegen, The Netherlands
    MAGMA 20:63-7. 2007
    ..The use of GE-EPI has potential disadvantages: (a) the non-zero TE may lead to BOLD contamination and (b) images suffer from the EPI-typical inhomogeneity artefacts...
  10. pmc Fast spin echo sequences for BOLD functional MRI
    Benedikt A Poser
    FC Donders Centre for Cognitive Neuroimaging, Trigon 181, P O Box 9101, 6500 HB, Nijmegen, The Netherlands
    MAGMA 20:11-7. 2007
    ..Our data also indicate that the BOLD post-stimulus undershoot is most probably attributable to persistent elevated oxygen metabolism rather than to delayed vascular compliance...