J Sijbers

Summary

Affiliation: University of Antwerp
Country: Belgium

Publications

  1. ncbi Automatic estimation of the noise variance from the histogram of a magnetic resonance image
    Jan Sijbers
    Vision Lab, Department of Physics, University of Antwerp Universiteitsplein 1, B 2610 Wilrijk, Belgium
    Phys Med Biol 52:1335-48. 2007
  2. ncbi Reduction of ring artefacts in high resolution micro-CT reconstructions
    Jan Sijbers
    Vision Lab, Department of Physics, University of Antwerp, Belgium Groenenborgerlaan 171, U316, B 2020 Antwerpen, Belgium
    Phys Med Biol 49:N247-53. 2004
  3. ncbi Generalized likelihood ratio tests for complex fMRI data: a simulation study
    J Sijbers
    University of Antwerp, Vision Lab, CMI, Groenenborgerlaan 171, U316, B 2020 Antwerpen, Belgium
    IEEE Trans Med Imaging 24:604-11. 2005
  4. ncbi Maximum likelihood estimation of signal amplitude and noise variance from MR data
    J Sijbers
    Vision Lab, Department of Physics, University of Antwerp, Belgium
    Magn Reson Med 51:586-94. 2004
  5. ncbi Multiscale white matter fiber tract coregistration: a new feature-based approach to align diffusion tensor data
    A Leemans
    Vision Laboratory, Department of Physics, University of Antwerp, Belgium
    Magn Reson Med 55:1414-23. 2006
  6. ncbi Nonrigid coregistration of diffusion tensor images using a viscous fluid model and mutual information
    Wim Van Hecke
    VisionLab, Department of Physics, University of Antwerp, 2610 Antwerp, Belgium
    IEEE Trans Med Imaging 26:1598-612. 2007
  7. ncbi Restoration of MR-induced artifacts in simultaneously recorded MR/EEG data
    J Sijbers
    Vision Lab, University of Antwerp, Belgium
    Magn Reson Imaging 17:1383-91. 1999
  8. ncbi Special designed RF-antenna with integrated non-invasive carbon electrodes for simultaneous magnetic resonance imaging and electroencephalography acquisition at 7T
    J Van Audekerkea
    Bio Imaging Lab, University of Antwerp, RUCA, Groenenborgerlaan, 171, B 2020, Antwerp, Belgium
    Magn Reson Imaging 18:887-91. 2000
  9. ncbi Adaptive anisotropic noise filtering for magnitude MR data
    J Sijbers
    Department of Physics, University of Antwerp, Antwerpen, Belgium
    Magn Reson Imaging 17:1533-9. 1999
  10. ncbi Automatic localization of EEG electrode markers within 3D MR data
    J Sijbers
    Vision Lab, University of Antwerp, Antwerp, Belgium
    Magn Reson Imaging 18:485-8. 2000

Detail Information

Publications41

  1. ncbi Automatic estimation of the noise variance from the histogram of a magnetic resonance image
    Jan Sijbers
    Vision Lab, Department of Physics, University of Antwerp Universiteitsplein 1, B 2610 Wilrijk, Belgium
    Phys Med Biol 52:1335-48. 2007
    ..The results show that the newly proposed method is superior in terms of the RMSE...
  2. ncbi Reduction of ring artefacts in high resolution micro-CT reconstructions
    Jan Sijbers
    Vision Lab, Department of Physics, University of Antwerp, Belgium Groenenborgerlaan 171, U316, B 2020 Antwerpen, Belgium
    Phys Med Biol 49:N247-53. 2004
    ..Therefore, in this note a simple but efficient and fast post processing method is proposed that effectively reduces ring artefacts in reconstructed micro-CT images...
  3. ncbi Generalized likelihood ratio tests for complex fMRI data: a simulation study
    J Sijbers
    University of Antwerp, Vision Lab, CMI, Groenenborgerlaan 171, U316, B 2020 Antwerpen, Belgium
    IEEE Trans Med Imaging 24:604-11. 2005
    ..It is argued that, in practical situations, GLRTs based on magnitude data are likely to perform better compared to GLRTs based on complex data in terms of detection rate and constant false alarm rate properties...
  4. ncbi Maximum likelihood estimation of signal amplitude and noise variance from MR data
    J Sijbers
    Vision Lab, Department of Physics, University of Antwerp, Belgium
    Magn Reson Med 51:586-94. 2004
    ..As a performance criterion, the mean-squared error (MSE) is used...
  5. ncbi Multiscale white matter fiber tract coregistration: a new feature-based approach to align diffusion tensor data
    A Leemans
    Vision Laboratory, Department of Physics, University of Antwerp, Belgium
    Magn Reson Med 55:1414-23. 2006
    ..An in vivo coregistration example is presented and compared with a voxel-based coregistration approach, demonstrating the feasibility and advantages of the proposed technique to align DT data of the human brain...
  6. ncbi Nonrigid coregistration of diffusion tensor images using a viscous fluid model and mutual information
    Wim Van Hecke
    VisionLab, Department of Physics, University of Antwerp, 2610 Antwerp, Belgium
    IEEE Trans Med Imaging 26:1598-612. 2007
    ..Nevertheless, this coregistration method has demonstrated to significantly improve spatial alignment compared to affine image matching...
  7. ncbi Restoration of MR-induced artifacts in simultaneously recorded MR/EEG data
    J Sijbers
    Vision Lab, University of Antwerp, Belgium
    Magn Reson Imaging 17:1383-91. 1999
    ..The method has proved to be fully automatic and to retain high frequency EEG information, which is indispensable for many EEG applications...
  8. ncbi Special designed RF-antenna with integrated non-invasive carbon electrodes for simultaneous magnetic resonance imaging and electroencephalography acquisition at 7T
    J Van Audekerkea
    Bio Imaging Lab, University of Antwerp, RUCA, Groenenborgerlaan, 171, B 2020, Antwerp, Belgium
    Magn Reson Imaging 18:887-91. 2000
    ..As the acquired EEG signals are heavily disturbed by the gradient switching, intelligent filtering is applied to obtain a clean EEG signal...
  9. ncbi Adaptive anisotropic noise filtering for magnitude MR data
    J Sijbers
    Department of Physics, University of Antwerp, Antwerpen, Belgium
    Magn Reson Imaging 17:1533-9. 1999
    ..In this work, we show how the Rice data probability distribution can be incorporated so as to construct a noise filter that is far less biased...
  10. ncbi Automatic localization of EEG electrode markers within 3D MR data
    J Sijbers
    Vision Lab, University of Antwerp, Antwerp, Belgium
    Magn Reson Imaging 18:485-8. 2000
    ..In this work, we present an automatic, simple, and accurate scheme that detects EEG electrode markers from 3D MR data of the human head...
  11. ncbi Machine learning study of several classifiers trained with texture analysis features to differentiate benign from malignant soft-tissue tumors in T1-MRI images
    Jaber Juntu
    Vision Laboratory VisieLab, Department of Physics, University of Antwerp, Belgium
    J Magn Reson Imaging 31:680-9. 2010
    ....
  12. ncbi Dissecting cognitive stages with time-resolved fMRI data: a comparison of fuzzy clustering and independent component analysis
    Alain Smolders
    Vision Lab Department of Physics, University of Antwerp, Universiteitsplein 1, B 2610 Antwerpen, Belgium
    Magn Reson Imaging 25:860-8. 2007
    ..This study confirms the efficacy of the two examined methods in the data-driven estimation of hemodynamic responses in time-resolved fMRI studies and provides empirical guidelines to their use...
  13. ncbi Optimal threshold selection for tomogram segmentation by projection distance minimization
    K J Batenburg
    University of Antwerp, IBBT Vision Lab, Universiteitsplein 1, B 2610 Wilrijk Antwerp, Belgium
    IEEE Trans Med Imaging 28:676-86. 2009
    ..Simulation experiments applied to various phantom images show that our proposed method obtains superior results compared to established histogram-based methods...
  14. ncbi Estimation of the noise in magnitude MR images
    J Sijbers
    Department of Physics, University of Antwerp, Belgium
    Magn Reson Imaging 16:87-90. 1998
    ..In this note a new method is proposed to estimate the image noise variance for this type of data distribution. The method is based on a double image acquisition, thereby exploiting the knowledge of the Rice distribution moments...
  15. ncbi Maximum-likelihood estimation of Rician distribution parameters
    J Sijbers
    Department of Physics, University of Antwerp, Belgium
    IEEE Trans Med Imaging 17:357-61. 1998
    ..In contrast to previously proposed methods, ML estimation is demonstrated to be unbiased for high signal-to-noise ratio (SNR) and to yield physical relevant results for low SNR...
  16. ncbi L1 knockout mice show dilated ventricles, vermis hypoplasia and impaired exploration patterns
    E Fransen
    Department of Medical Genetics, University of Antwerp, B 2610 Antwerp, Belgium
    Hum Mol Genet 7:999-1009. 1998
    ..Additionally, the cerebellar vermis of the KO mice is hypoplastic. Their exploratory behavior is characterized by stereotype peripheral circling reminiscent of that of rodents with induced cerebellar lesions...
  17. ncbi More accurate estimation of diffusion tensor parameters using diffusion Kurtosis imaging
    Jelle Veraart
    VisionLab, Department of Physics, University of Antwerp, Wilrijk, Antwerp, Belgium
    Magn Reson Med 65:138-45. 2011
    ....
  18. ncbi Morphologic and functional changes in the unilateral 6-hydroxydopamine lesion rat model for Parkinson's disease discerned with microSPECT and quantitative MRI
    Nadja Van Camp
    Bio Imaging Lab, University of Antwerp, Groenenborgerlaan 171, Antwerp, Belgium
    MAGMA 23:65-75. 2010
    ..In the present study, we aimed to evaluate the impact of neurodegeneration of the nigrostriatal tract in a rodent model of Parkinson's disease on the different MR contrasts (T(2), T(1), CBF and CBV) measured in the striatum...
  19. ncbi Assessment and stenting of tracheal stenosis using deformable shape models
    Rômulo Pinho
    IBBT Visionlab, Department of Physics of the University of Antwerp, Belgium
    Med Image Anal 15:250-66. 2011
    ..The method was extensively evaluated on simulation as well on real data and the results showed that it is accurate and fast enough to be used in the clinical setting...
  20. ncbi Optimal experimental design for diffusion kurtosis imaging
    Dirk H J Poot
    IBBT Vision Lab, University of Antwerp, B 2610 Antwerp, Belgium
    IEEE Trans Med Imaging 29:819-29. 2010
    ..It is shown that the precision with which the kurtosis parameters can be estimated, increases substantially by optimizing the gradient settings...
  21. ncbi Automatic construction of correspondences for tubular surfaces
    Toon Huysmans
    Department of Physics, University of Antwerp CDE, Universiteitsplein 1, B 2610 Antwerp, Belgium
    IEEE Trans Pattern Anal Mach Intell 32:636-51. 2010
    ....
  22. ncbi Correlation of cognitive dysfunction and diffusion tensor MRI measures in patients with mild and moderate multiple sclerosis
    Wim Van Hecke
    VisionLab, Department of Physics, University of Antwerp, B 2610 Antwerp, Belgium
    J Magn Reson Imaging 31:1492-8. 2010
    ..To compare the diffusion tensor imaging (DTI) measures of multiple sclerosis (MS) patients and healthy subjects in every brain voxel and to correlate them with Paced Auditory Serial Addition Test (PASAT) scores...
  23. ncbi Probabilistic fiber tracking using the residual bootstrap with constrained spherical deconvolution
    Ben Jeurissen
    Vision Lab, Department of Physics, University of Antwerp, Wilrijk, Antwerp, Belgium
    Hum Brain Mapp 32:461-79. 2011
    ..In addition, the performance of the proposed method is compared to state-of-the-art DTI residual bootstrap tractography and to an existing probabilistic CSD tractography algorithm using clinical DW data...
  24. ncbi Noise measurement from magnitude MRI using local estimates of variance and skewness
    Jeny Rajan
    Vision Lab, Department of Physics, University of Antwerp, Belgium
    Phys Med Biol 55:N441-9. 2010
    ..Experimental results on synthetic and real MR image datasets show that the proposed estimators accurately estimate the noise level in a magnitude MR image, even without background data...
  25. ncbi The effect of template selection on diffusion tensor voxel-based analysis results
    Wim Van Hecke
    Department of Radiology, University Hospital Antwerp, Edegem Antwerp, Belgium
    Neuroimage 55:566-73. 2011
    ..Our results suggest that the highest sensitivity and specificity to detect WM abnormalities in a VBA setting was achieved using the population-specific DTI atlas, presumably due to the better spatial image alignment to this template...
  26. ncbi Diffusion tensor image up-sampling: a registration-based approach
    Zhenhua Mai
    IBBT Visionlab, Department of Physics, Universiteit Antwerpen, Antwerpen, Wilrijk, 2610, Belgium
    Magn Reson Imaging 28:1497-506. 2010
    ....
  27. ncbi Improved B(0) field map estimation for high field EPI
    Dirk H J Poot
    IBBT Visionlab, University of Antwerp, 2610 Wilrijk, Belgium
    Magn Reson Imaging 28:441-50. 2010
    ..The proposed method is tested on simulated as well as experimental data and proves to be significantly more robust against noise, compared to the previously suggested method...
  28. ncbi Comparing isotropic and anisotropic smoothing for voxel-based DTI analyses: A simulation study
    Wim Van Hecke
    Department of Physics, University of Antwerp, Wilrijk, Belgium
    Hum Brain Mapp 31:98-114. 2010
    ..Our results clearly demonstrate an increased sensitivity and specificity of detecting a predefined simulated pathology when the anisotropic smoothing kernel was used...
  29. ncbi A diffusion tensor imaging group study of the spinal cord in multiple sclerosis patients with and without T2 spinal cord lesions
    Wim Van Hecke
    Visionlab Department of Physics, University of Antwerp, Antwerp, Belgium
    J Magn Reson Imaging 30:25-34. 2009
    ..To examine the T(2)-normal appearing spinal cord of patients with multiple sclerosis (MS) using diffusion tensor imaging...
  30. ncbi Spatiotemporal properties of the BOLD response in the songbirds' auditory circuit during a variety of listening tasks
    Vincent Van Meir
    Bio Imaging Laboratory, University of Antwerp, Groenenborgerlaan 171, B 2020 Antwerp, Belgium
    Neuroimage 25:1242-55. 2005
    ....
  31. ncbi Functional magnetic resonance imaging in zebra finch discerns the neural substrate involved in segregation of conspecific song from background noise
    Tiny Boumans
    Bio Imaging Lab, University of Antwerp, Antwerp, Belgium
    J Neurophysiol 99:931-8. 2008
    ....
  32. ncbi A tracking-based diffusion tensor imaging segmentation method for the detection of diffusion-related changes of the cervical spinal cord with aging
    Wim Van Hecke
    VisionLab, Department of Physics, University of Antwerp, Antwerp, Belgium
    J Magn Reson Imaging 27:978-91. 2008
    ..To compare region of interest (ROI)-based and diffusion tensor tractography (DTT)-based methods for evaluating diffusion properties of the spinal cord as a function of age...
  33. ncbi On the construction of an inter-subject diffusion tensor magnetic resonance atlas of the healthy human brain
    Wim Van Hecke
    Visionlab Department of Physics, University of Antwerp, Antwerp, Belgium
    Neuroimage 43:69-80. 2008
    ..Our results demonstrate that the population based atlas framework is more accurate with respect to the underlying diffusion information...
  34. ncbi On the construction of a ground truth framework for evaluating voxel-based diffusion tensor MRI analysis methods
    Wim Van Hecke
    Visionlab Department of Physics, University of Antwerp, Wilrijk Antwerp, Belgium
    Neuroimage 46:692-707. 2009
    ..The simulated DTI data sets will be made available online (http://www.dti.ua.ac.be)...
  35. ncbi Diffusion tensor imaging in a rat model of Parkinson's disease after lesioning of the nigrostriatal tract
    Nadja Van Camp
    University of Antwerp, Belgium
    NMR Biomed 22:697-706. 2009
    ....
  36. ncbi Mathematical framework for simulating diffusion tensor MR neural fiber bundles
    A Leemans
    Vision Laboratory, Department of Physics, University of Antwerp, B 2020 Antwerp, Belgium
    Magn Reson Med 53:944-53. 2005
    ..Several examples of how the mathematical framework can be applied to compare fiber-tracking algorithms are presented...
  37. ncbi Performance improvements for iterative electron tomography reconstruction using graphics processing units (GPUs)
    W J Palenstijn
    IBBT Vision Lab, University of Antwerp Universiteitsplein 1, B 2610, Wilrijk, Belgium
    J Struct Biol 176:250-3. 2011
    ..By carefully considering memory access locality when dividing the workload among blocks of threads, the GPU's cache is used more efficiently, making more effective use of the available memory bandwidth...
  38. ncbi Neuroanatomy of the fragile X knockout mouse brain studied using in vivo high resolution magnetic resonance imaging
    R F Kooy
    Department of Medical Genetics, University of Antwerp, Belgium
    Eur J Hum Genet 7:526-32. 1999
    ..We did not find evidence for size alterations in various brain regions of the fragile X mouse model, but the method described may find a wide application in the study of mutant mouse models with neurological involvement...
  39. ncbi 3D imaging of nanomaterials by discrete tomography
    K J Batenburg
    Vision Lab, University of Antwerp CDE, Universiteitsplein 1, B 2610 Wilrijk, Belgium
    Ultramicroscopy 109:730-40. 2009
    ....
  40. ncbi An energy-based beam hardening model in tomography
    E Van de Casteele
    Vision Lab, Physics Departement, University of Antwerp RUCA, Belgium
    Phys Med Biol 47:4181-90. 2002
    ..The validity of the proposed model is examined by fitting the model to the experimental datapoints obtained on a microtomograph for different materials and source voltages...
  41. ncbi Implications of the Rician distribution for fMRI generalized likelihood ratio tests
    Arnold J den Dekker
    Delft Center for Systems and Control, Delft University of Technology, 2628 CD Delft, The Netherlands
    Magn Reson Imaging 23:953-9. 2005
    ..Furthermore, we propose a generalized likelihood ratio test for magnitude MR data that has the same performance compared to the GLMT for high SNR, but performs significantly better than the GLMT for low SNR...