K Scheffler

Summary

Affiliation: University of Basel
Country: Switzerland

Publications

  1. ncbi request reprint Auditory cortical responses in hearing subjects and unilateral deaf patients as detected by functional magnetic resonance imaging
    K Scheffler
    MR Center and Biocenter, University of Basel, Switzerland
    Cereb Cortex 8:156-63. 1998
  2. ncbi request reprint Titration of the BOLD effect: separation and quantitation of blood volume and oxygenation changes in the human cerebral cortex during neuronal activation and ferumoxide infusion
    K Scheffler
    MR Center and Biocenter, University of Basel, Basel, Switzerland
    Magn Reson Med 42:829-36. 1999
  3. ncbi request reprint Effect of ethanol on BOLD response to acoustic stimulation: implications for neuropharmacological fMRI
    E Seifritz
    Department of Psychiatry, University of Basel, Basel, Switzerland
    Psychiatry Res 99:1-13. 2000
  4. doi request reprint Neural effects of green tea extract on dorsolateral prefrontal cortex
    S Borgwardt
    University Hospital Basel, Medical Image Analysis Centre, University of Basel, Basel, Switzerland
    Eur J Clin Nutr 66:1187-92. 2012
  5. ncbi request reprint Auditory system: functional magnetic resonance imaging
    E Seifritz
    Department of Psychiatry, University of Basel, Basel, Switzerland
    Neuroimaging Clin N Am 11:275-96, ix. 2001
  6. ncbi request reprint Arterial first pass gadolinium-CM dynamics as a function of several intravenous saline flush and Gd volumes
    M Boos
    Department of Radiology, University-Hospital, Basel, Switzerland
    J Magn Reson Imaging 13:568-76. 2001
  7. ncbi request reprint Optimized spectrally selective steady-state free precession sequences for cartilage imaging at ultra-high fields
    O Bieri
    MR Physics, Department of Medical Radiology, University of Basel, Petersgraben 4, 4031 Basel, Switzerland
    MAGMA 21:87-94. 2008
  8. ncbi request reprint Morphing steady-state free precession
    O Bieri
    MR Physics, Department of Medical Radiology, University of Basel, Basel, Switzerland
    Magn Reson Med 58:1242-8. 2007
  9. ncbi request reprint Optimized balanced steady-state free precession magnetization transfer imaging
    O Bieri
    MR Physics, Department of Medical Radiology, University of Basel, Basel, Switzerland
    Magn Reson Med 58:511-8. 2007
  10. ncbi request reprint On the origin of apparent low tissue signals in balanced SSFP
    O Bieri
    MR Physics, Department of Medical Radiology, University of Basel, Basel, Switzerland
    Magn Reson Med 56:1067-74. 2006

Collaborators

Detail Information

Publications24

  1. ncbi request reprint Auditory cortical responses in hearing subjects and unilateral deaf patients as detected by functional magnetic resonance imaging
    K Scheffler
    MR Center and Biocenter, University of Basel, Switzerland
    Cereb Cortex 8:156-63. 1998
    ..This observation seems to indicate a plasticity or a reorganization of auditory pathways of monaural deaf patients...
  2. ncbi request reprint Titration of the BOLD effect: separation and quantitation of blood volume and oxygenation changes in the human cerebral cortex during neuronal activation and ferumoxide infusion
    K Scheffler
    MR Center and Biocenter, University of Basel, Basel, Switzerland
    Magn Reson Med 42:829-36. 1999
    ..Magn Reson Med 42:829-836, 1999...
  3. ncbi request reprint Effect of ethanol on BOLD response to acoustic stimulation: implications for neuropharmacological fMRI
    E Seifritz
    Department of Psychiatry, University of Basel, Basel, Switzerland
    Psychiatry Res 99:1-13. 2000
    ..Although the FBD model needs empirical validation, its cautious implementation appears to be helpful if fMRI is used in combination with vasoactive drugs...
  4. doi request reprint Neural effects of green tea extract on dorsolateral prefrontal cortex
    S Borgwardt
    University Hospital Basel, Medical Image Analysis Centre, University of Basel, Basel, Switzerland
    Eur J Clin Nutr 66:1187-92. 2012
    ..In vivo studies provide preliminary evidence that green tea intake may have a positive role in improving effects on cognitive functions. We aimed to examine the neural effects of green tea extract on brain activation in humans...
  5. ncbi request reprint Auditory system: functional magnetic resonance imaging
    E Seifritz
    Department of Psychiatry, University of Basel, Basel, Switzerland
    Neuroimaging Clin N Am 11:275-96, ix. 2001
    ..It is expected that novel methodologic approaches will stimulate scientific exploration of auditory processing and eventually lead to clinically meaningful applications of auditory fMRI...
  6. ncbi request reprint Arterial first pass gadolinium-CM dynamics as a function of several intravenous saline flush and Gd volumes
    M Boos
    Department of Radiology, University-Hospital, Basel, Switzerland
    J Magn Reson Imaging 13:568-76. 2001
    ..Doses larger than a single dose are not needed to increase the SNR in contrast-enhanced magnetic resonance angiography images of the thoracic aorta...
  7. ncbi request reprint Optimized spectrally selective steady-state free precession sequences for cartilage imaging at ultra-high fields
    O Bieri
    MR Physics, Department of Medical Radiology, University of Basel, Petersgraben 4, 4031 Basel, Switzerland
    MAGMA 21:87-94. 2008
    ..However, ultra-high fields (7.0 T and more) may offer alternative fat suppression techniques as a result of the increased chemical shift...
  8. ncbi request reprint Morphing steady-state free precession
    O Bieri
    MR Physics, Department of Medical Radiology, University of Basel, Basel, Switzerland
    Magn Reson Med 58:1242-8. 2007
    ....
  9. ncbi request reprint Optimized balanced steady-state free precession magnetization transfer imaging
    O Bieri
    MR Physics, Department of Medical Radiology, University of Basel, Basel, Switzerland
    Magn Reson Med 58:511-8. 2007
    ..In summary, a novel method to generate MTR maps using bSSFP image acquisitions is presented and factors that optimize and influence this contrast are discussed...
  10. ncbi request reprint On the origin of apparent low tissue signals in balanced SSFP
    O Bieri
    MR Physics, Department of Medical Radiology, University of Basel, Basel, Switzerland
    Magn Reson Med 56:1067-74. 2006
    ..As a result, bSSFP signal is strongly attenuated by up to a factor of 2 in the human brain compared to the signal expected from theory...
  11. ncbi request reprint Effect of diffusion in inhomogeneous magnetic fields on balanced steady-state free precession
    O Bieri
    MR Physics, Department of Medical Radiology, University of Basel, Basel, Switzerland
    NMR Biomed 20:1-10. 2007
    ....
  12. ncbi request reprint Balanced alternating steady-state elastography
    O Bieri
    MR Physics, Department of Medical Radiology, University of Basel, Basel, Switzerland
    Magn Reson Med 55:233-41. 2006
    ..In addition, the new method benefits from the very short acquisition times achieved by b-SSFP protocols...
  13. ncbi request reprint Double average parallel steady-state free precession imaging: optimized eddy current and transient oscillation compensation
    M Markl
    Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Germany
    Magn Reson Med 54:965-74. 2005
    ..The proposed technique can easily be extended to other acquisition schemes that would benefit from nonlinear reordering schemes and/or rely on interruption of the balanced SSFP steady state...
  14. ncbi request reprint Flow compensation in balanced SSFP sequences
    O Bieri
    MR Physics, Department of Medical Radiology, University of Basel, Switzerland
    Magn Reson Med 54:901-7. 2005
    ....
  15. ncbi request reprint Analysis and compensation of eddy currents in balanced SSFP
    O Bieri
    MR Physics, Department of Medical Radiology, University of Basel, Basel, Switzerland
    Magn Reson Med 54:129-37. 2005
    ..Both pairing of the PE steps and "through-slice equilibration" are easy to implement and allow the use of arbitrary k-space trajectories for balanced SSFP...
  16. ncbi request reprint Dynamic time-resolved contrast-enhanced two-dimensional MR projection angiography of the pulmonary circulation: standard technique and clinical applications
    S Sonnet
    Department of Radiology, University Hospital Basel, Petersgraben 4, 4051 Basel, Switzerland
    AJR Am J Roentgenol 179:159-65. 2002
    ..This article describes the application of this novel technique in three patients with pathologic conditions not previously described with this modality and two control subjects...
  17. ncbi request reprint B22956/1, a new intravascular contrast agent for MRI: first administration to humans--preliminary results
    Anna La Noce
    Bracco Imaging S p A, Milan, Italy
    Acad Radiol 9:S404-6. 2002
  18. ncbi request reprint Fast 31P chemical shift imaging using SSFP methods
    O Speck
    Department of Diagnostic Radiology, Section Medical Physics, University Medical Center, Freiburg, Germany
    Magn Reson Med 48:633-9. 2002
    ..The SNR gain for PCr over a FLASH-based CSI method is approx. 4-5. Fast in vivo CSI of human muscle with subcentimeter resolution and high SNR is demonstrated at 2 T...
  19. ncbi request reprint MR angiography of dural arteriovenous fistulas: diagnosis and follow-up after treatment using a time-resolved 3D contrast-enhanced technique
    S Meckel
    Division of Neuroradiology, Institute of Radiology, University Hospital, Basel, Switzerland
    AJNR Am J Neuroradiol 28:877-84. 2007
    ..The goal of this study was to analyze the value of different MR images including 3D contrast-enhanced MR angiography (MRA) with a high temporal resolution in diagnostic and follow-up imaging of DAVFs...
  20. ncbi request reprint In vivo assessment and visualization of intracranial arterial hemodynamics with flow-sensitized 4D MR imaging at 3T
    S Wetzel
    Department of Medical Radiology, Institute of Neuroradiology, University Hospital of Basel, Basel, Switzerland
    AJNR Am J Neuroradiol 28:433-8. 2007
    ..In a patient with steno-occlusive neurovascular disease, stagnant and retrograde flow patterns were readily visible...
  21. ncbi request reprint DCE-MRI in clinical trials: data acquisition techniques and analysis methods
    R Strecker
    University Hospital, Albert Ludwigs University, Freiburg, Germany
    Int J Clin Pharmacol Ther 41:603-5. 2003
  22. ncbi request reprint Basics of non-invasive angiography contrast-enhanced magnetic resonance angiography
    K Scheffler
    MR Physics, Department of Medical Radiology, University Hospital Basel, Switzerland
    JBR-BTR 86:344-6. 2003
    ..Subsequent postprocessing allows an angiographic display of image data in any desired obliquity. The following part gives an overview and the basic principles of the methods used for CE-MRA...
  23. ncbi request reprint Alternating repetition time balanced steady state free precession
    J Leupold
    Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany
    Magn Reson Med 55:557-65. 2006
    ..The total scan time is increased by about 30% compared to conventional balanced SSFP. The new technique was applied on phantoms and volunteers to produce rapid, fat suppressed images...
  24. ncbi request reprint Functional fields in human auditory cortex revealed by time-resolved fMRI without interference of EPI noise
    F Di Salle
    Department of Biomorphological and Functional Sciences, University of Naples Federico II, Italy
    Neuroimage 13:328-38. 2001
    ..These differences, attributable to reciprocal saturation effects unevenly distributed over the superior temporal cortex, provided evidence for functionally distinct auditory fields...