Tim B. Dyrby BSc.EE, MSc, Ph.D

Associate Professor
DIG Group Leader

Office (+45) 38 62 65 42

Email: timd |at| drcmr.dk 

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Engineer with many years experience in the medical imaging field, both clinic and pre-clinic.

Research Keywords

Microstructure imaging
Tractography
Brain plasticity and maturation 
Brain dynamics
Biophysical modelling
MR acqusition, sequence design and optimisation

Education

2008 PhD Title: Modelling Brain Tissue Using Magnetic Resonance Imaging, DTU informatics, Tech. Univ. of Denmark (DTU).

2002 M.Sc. DTU informatics, DTU

1997 Diploma Engineer, B.Sc.EE, Dep. of Electronic, Engineering College of Copenhagen, Denmark



Employment

Dec. 2015+ Associate Professor, DTU compute, Technical University of Denmark

April 2014+  Heading preclinical research, DRCMR

Jan. 2010+    Senior Researcher, DRCMR 

Jan. 2009+    Group leader of The Diffusion Imaging Group (DIG), DRCMR 

Nov. 2008 – Dec 2009 Postdoc, DRCMR

Feb. 2005 – Oct 2008 Research Assistant (Ph.D. student), DTU

Sep. 2003 – Jan. 2005 Research Assistant, DRCMR

Sep. 2002 – Sep. 2003 Research Assistant, Neurobiologic Research Unit, Copenhagen University Hospital Rigshospitalet.

Aug. 1997 - May 2000  INTRA Development A/S (Electronic development  of high-power intelligent security controllers for the car industry). 



Research activity and experience

  • Organizer: Diffusion MRI workshop (2009, 2006). DRCMR, Cph. Univ. Hosp Hvidovre
  • Organizer/teaching: PhD course Advances in MRI of human brain structure and function, Cph Uni. 2009 
  • Program committee MICCAI on Computational Diffusion MRI (CDMRI), 2010 - 
  • MICCAI 2010 Workshop on Computational Diffusion MRI (CDMRI'10), Beijing ChinaLecture: ”Validation approaches for diffusion MRI based techniques” 
  • Invited international and national talks
  • Large scale data (multi-center) and image processing and analysis
  • Pre-clinical MRI experience (in vivo and ex vivo)
  • Clinical MRI experience  
  • Ad hoc reviewer: Neuroimage, Human Brain Mapping, Hippocampus, Brain Structure and Function, NMR in Biomedicine, Magnetic Resonance in Medicine, Cerebral Cortex, and more
  • Reviewing abstracts for the ISMRM society for the annual meeting
  • Review editor at Frontiers in Brain Imaging Methods (2012 - )

 

 Former Ph.d. students  

  • Nina L. Reislev (defended October 2014) :: "The Wiring of the Blind Brain", Copenhagen University
  • Kasper W. Andersen (defended April 2014) :: "Brain Network Modelling”, DTU Compute, Technical University of Denmark
  • Mark Lyksborg (defended June 2013) :: "Determination of magnetic resonance imaging biomarkers for multiple sclerosis treatment effects", Technical University of Denmark.
  • Henrik Lundell (defended March 2011) :: "Methods for mapping spinal cord connectivity using diffusion, functional and conventional MRI", Copenhagen University
  • Matthew G. Liptrot (defended October 2010) :: "Image Processing in Diffusion MRI Tractography", Imperial College, University of London.

 


Popular Science

2015 The future direction of MRI in Multiple Scelrosis patients - A hope (in Danish). The Danish Sclerosis Foundation support project

2011 På rundrejse i den levende hjerne med MR. Forskningendøgn, Hvidovre Hospital 

2009 På opdagelse i hjernen (in Danish), Front page on the DTUAvisen (April) the newspaper of The Technical University of Denmark

2009 På opdagelse i hjernen med lovende teknik (in Danish), Videnskab.dk

 


Technical papers

  • Daniel C. Alexander and Tim B. Dyrby, Diffusion imaging with stimulated echoes: signal models and experiment design. arXiv:1305.7367 [physics.med-ph], 2013

Book chapter


Publications  

Large I, Bridge H, Ahmed B, Clare S, Kolasinski J, Lam WW, Miller KL, Dyrby TB, Parker AJ, Smith JET, Daubney G, Sallet J Bell AH, Krug K, Individual differences in the alignment of structural and functional markers of the V5/MT complex in primates, Cerebral Cortex, 2016, Accepted

Donahue C, Sotiropoulos S, Jbabdi S, Hernandez-Fernandez M, Beherens T, Dyrby TB, Kennedy H, Knoblauch K, Coalson T, Glasser M, Van Essen D, Using Diffusion Tractography to Predict Cortical Connection Strength and Distance: A Quantitative Comparison with Tracers in the Monkey, Journal Neuroscience, 2016, 36(25): 6758-6770

Innocenti GM, Dyrby TB, Winther Andersen K, Rouillier EM, Caminiti R, The crossed projection to the striatum in two species of monkey and in humans: Behavioral and evolutionary significance, Cerebral Cortex, 2016, doi: 10.1093/cercor/bhw161

Reislev NL, Dyrby TB, Siebner HR, Kupers R, Simultaneous assessment of white matter changes in microstructure and connectedness in the blind brain, Neural Plasticity, Article ID 795865, 2015

Ratzer R, Iversen P, Börnsen L, Dyrby TB, Christensen JR, Ammitzbøll C, Madsen CG, Garde E, Andersen B, Hyldstrup L, Sørensen PS, Siebner HR, Sellebjerg F, Monthly oral methylprednisolone pulse treatment in progressive multiple sclerosis, Multiple Sclerosis Journal, 2015, doi:10.1177/1352458515605908

Shemesh N, Jespersen SN, Alexander DC, Cohen Y, Drobnjak I, Dyrby TB, Finsterbusch J, Koch MA, Kuder T, Laun F, Lawrenz M, Lundell H, Mitra PP, Nilsson M, Özarslan E, Topgaard D, Westin CF, Conventions and nomenclature for double diffusion encoding NMR and MRI, Magn Reson Med, 2016, 75(1);82-87 

Knösche TR, Anwander A, Liptrot MG, Dyrby TB, Validation of Tractography – Comparison with Manganese Tracing, Human Brain Mapping, Human Brain Mapping, 2015, 36(10);4116–4134

Reislev NL, Kupers R, Siebner HR, Ptito M, Dyrby TB, Blindness alters the microstructure of the ventral but not the dorsal visual stream. Brain Structure and Function, DOI: 10.1007/s00429-015-1078-8, 2015

Sickmann HM, Arentzen TS, Dyrby TB, PlathN, Kristensen MP, Prenatal Stress Produces Sex Specific Changes in Depression-like Behavior in Rats: Implications for increased vulnerability in females, Journal of Developmental Origins of Health and Disease, 2015, 6(5);462-474

Lundell H, Sønderby CK, Dyrby TBDiffusion weighted imaging with circularly polarized oscillating gradients,Magn Reson Med., 73(3), 171:11762015

Daducci A, Canales-Rodriguez EJ, Zhang H, Dyrby TB, Alexander DC, Thiran JP, Accelerated Microstructure Imaging via Convex Optimization (AMICO) from diffusion MRI data, Neuroimage, 35, 32-44, 2015

Dyrby TB, Lundell H, Burke MW, Reislev NL, Paulson OB, Ptito M, Siebner HR, Interpolation of diffusion weighted imaging datasets, NeuroImage, 103, 202–2132014

Jespersen SN, Lundel H, Sønderby C, Dyrby TBCommentary on ”Microanisotropy imaging: quantification of microscopic diffusion anisotropy and orientation of order parameter by diffusion MRI with magic-angle spinning of the q-vector”, Frontiers in Physics, doi: 10.3389/fphy.2014.00028, 2014

Lundell HM, Alexander DC, Dyrby TB, High angular resolution diffusion imaging with stimulated echoes: compensation and correction in experiment design and analysis, NMR in Biomedicine, 27 (8), 918-925, 2014

Liptrot GM, Sidaros K, Dyrby TB, Addressing The Path-Length-Dependency Confound In White Matter Tract Segmentation, PLOS ONE, 9 (5), e96247, 2014

Lyksborg M, Siebner HR, Sørensen PS, Blinkenberg M, Parker GJM, Dogonowski A, Garde E, Larsen R, Dyrby TB, Secondary progressive and relapsing remitting multiple sclerosis leads to motor-related decreased anatomical connectivity,  PLOS ONE 9 (4), e95540, 2014

Christensen JR, Ratzer R, Börnsen L, Lyksborg M, Garde E, Dyrby TB, Siebner HR, Sørensen PS, Sellebjerg F, Natalizumab in progressive MS – results of an open-label phase 2A proof-of- concept trial. Neurology, 2014

Sønderby CK, Lundell H, Søgaard LV, Dyrby TBApparent exchange rate imaging in anisotropic systems, Magnetic Resonance in Medicine, 2013,72 (3)756:762, 2014

Jespersen SN,Lundell H, Sønderby KS, Dyrby TB, Rotationally invariant sampling of double pulsed field gradient diffusion: estimating apparent compartment eccentricity, NMR in biomedicine, 26, 1647:1662, 2013

Assaf Y, Alexander DC, Jones DK, Bizzi A, Behrens T, Clark C, Cohen Y, Dyrby TB, Huppi P, Knoesche T, LeBihan D, Parker GJM, CONNECT Consortium, The CONNECT project: Combining Macro- and Micro-structure, NeuroImage, 80, 273-282, 2013

Dogonowski AM, Siebner HR, Sørensen PS, Paulson OB, Dyrby TB, Blinkenberg M, Madsen KH, Resting-state connectivity of premotor cortex reflects disability in multiple sclerosis, Acta Neurologica Scandinavica,Acta Neurologica Scandinavica, 128(5), 328-335, 2013

Dyrby TB, Søgaard LV, Hall MG, Ptito M, Alexander DC, Contrast and stability of the axon diameter index from microstructure imaging with diffusion MRI, Magnetic Resonance in Medicine, 70(3)711:721, 2013

Dogonowski A, Siebner HR, Sørensen PS, Wu X, Biswal B, Paulson OB, Dyrby TB, Skimminge A, Blinkenberg M, Madsen KH,Expanded functional coupling of subcortical nuclei with the motor resting-state network in multiple sclerosis, Multiple Sclerosis Journal,  Multiple Sclerosis Journal, 19: 559-566, 2013

Lundell H, Barthelemy D, Biering-Sørensen F, Cohen-Adad J, Nielsen JB, Dyrby TB., Fast diffusion tensor imaging and tractography of the whole cervical spinal cord using point spread function corrected echo planar imaging., Magn Reson Med. Magn Reson Med. 69(1):144-9. 2013

Zhang H, Dyrby TB, Alexander DC.,Axon diameter mapping in crossing fibers with diffusion MRI., Med Image Comput Comput Assist Interv. 2011;14(Pt 2):82-9.

Lundell H, Nilsen JB, Ptito M, Dyrby TBDistribution of collateral fibers in the monkey cervical spinal cord detected with diffusion weighted magnetic resonance imaging, Neuroimage, 2011, 1;56(3):923-9.

Dyrby TB, Baaré WF, Alexander DC, Jelsing J, Garde E, Søgaard LV, An ex vivo imaging pipeline for producing high-quality and high-resolution diffusion weighted imaging datasets, Hum Brain Mapp. 2011;32(4):544-63

Lundell H, Barthelemy D, Skimminge A, Dyrby TB, Biering-Sørensen F, Nielsen JB. Independent spinal cord atrophy measures correlate to motor and sensory deficits in individuals with spinal cord injury. Spinal Cord. 2010

Alexander DC, Hubbard PL, Hall MG, Moore EA, Ptito M, Parker GJ, Dyrby TB. Orientationally invariant indices of axon diameter and density from diffusion MRI Neuroimage. 2010;52(4):1374-89

Dyrby TB, Rostrup E, Baaré WF, van Straaten EC, Barkhof F, Vrenken H, Ropele S, Schmidt R, Erkinjuntti T, Wahlund LO, Pantoni L, Inzitari D, Paulson OB, Hansen LK, Waldemar G; LADIS study group. Segmentation of age-related white matter changes in a clinical multi-center study. Neuroimage, Vol 41, pp. 335-45, 2008

Dyrby TB, Sogaard LV, Parker GJ, Alexander DC, Lind NM, Baare WF, Hay-Schmidt A, Eriksen N, Pakkenberg B, Paulson OB, Jelsing J., Validation of in vitro probabilistic tractography. Neuroimage, Vol 37, pp. 1267-1277. 2007

Haugbol S, Pinborg LH, Arfan HM, Frokjaer VM, Madsen J, Dyrby TB, Svarer C, Knudsen GM. Reproducibility of 5-HT2A receptor measurements and sample size estimations with [18F]altanserin PET using a bolus/infusion approach. Eur J Nucl Med Mol Imaging, Vol 34, pp. 910-5. 2007

Jelsing J, Hay-Schmidt A, Dyrby T, Hemmingsen R, Uylings HB, Pakkenberg B. The prefrontal cortex in the Gottingen minipig brain defined by neural projection criteria and cytoarchitecture. Brain Res Bull, Vol 70, pp. 322-36, 2006


Conference contributions

Lasic S,  Lundell H,  Sønderby, CK,  Topgaard D,  Dyrby TB. Confounding Effects of Imaging Gradients in Stimulated Echo: Case of Diffusion Exchange Imaging, International Society for Magnetic Resonance in Medicine, pp. 2792, Toronto, Canada, 2015 (poster)

Rathi Y,  Lasic S,  Dyrby TB,  Westin CF, Differential Diffusion Imaging (DDI): A Novel Scheme for Resolving Small Axon Diameters by a Set of Single PGSE Experiments, International Society for Magnetic Resonance in Medicine, pp. 2794, Toronto, Canada, 2015 (poster)

Nielsen JS,  Dyrby TB,  Lundell H, Detection of Curvature and Microscopic Anisotropy of Neurites at Short Length Scales, International Society for Magnetic Resonance in Medicine, pp. 345, Toronto, Canada, 2015 (oral pitch)

Drobnjak I, Lyon J,  Ianus A,  Alexander DC,  Dyrby TB, Low Frequency OGSE Improves Axon Diameter Imaging in Monkey Corpus Callosum Over Simple PGSE Method, International Society for Magnetic Resonance in Medicine, pp. 2939, Toronto, Canada, 2015 (e-poster)

Lundell H,  Dyrby TB,   Cristinacce PLH,  Zhou F,  Parker, GJM,  Jespersen SN, Validation of Double Diffusion Schemes of Microscopic Fractional Anisotropy,  International Society for Magnetic Resonance in Medicine, pp. 155, Toronto, Canada, 2015 (oral)

Auria A,  Canales-Rodriguez E,  Wiaux Y,  Dirby T,  Alexander DC,   Thiran JP,  Daducci A, Accelerated Microstructure Imaging Via Convex Optimization (AMICO) in Crossing Fibers, ,  International Society for Magnetic Resonance in Medicine, pp. 2814, Toronto, Canada, 2015 (poster)

Andersen KW, Madsen KH, Dyrby TB, Siebner HR, Probing cortico-striatal connectivity using relevance voxel machiner, Brainmodes, London, UK, 2014

Jackson E.T. Smith, T.B. Dyrby, H. Bridge, K. Miller, B. Ahmed, A.J. Parker, K. Krug,Predicting the topographic organisation of visual area V5/MT from probabilistic cortico-cortical connections to V1, Proc Intl Soc Neuroscience, Washinton DC, USA, 2294, 2014

Ambrosen KS, Albers KJ, Dyrby TB, Schmidt MN, Mørup M, Nonparametric Bayesian Clustering of Structural Whole Brain Connectivity in Full Image Resolusion, Pattern Recognition in Neuroimaging, Tuebingen, Germany, 2014

Dyrby TB, Burke M, Alexander DC, Ptito M, Undulating and crossing axons in the corpus callosum may explain the overestimation of axon diameters with ActiveAx, (Proceedings paper) International Society for Magnetic Resonance in Medicine, pp. 6225, Milan, Italy, 2014

Sønderby C, Lundell H, Dyrby TB, Exchange and T2-relaxation effects in double pulsed field gradient experiments, (Proceedings paper) International Society for Magnetic Resonance in Medicine, pp. 6360, Milan, Italy, 2014

Lundell H, Sønderby C, Dyrby TB, Experimental considerations for OGSE of anisotropic tissue, (Proceedings paper) International Society for Magnetic Resonance in Medicine, pp. 6665, Milan, Italy, 2014

K. Tang-Wright, H. Bridge, Kauer, TB. Dyrby, J. Sallet, K. Miller, B. Ahmed, K. Krug, Geniculo-cortical connectivity and topographical mapping in the ex vivo primate brain using diffusion-weighted imaging and probabilistic tractography, Proc Intl Soc Neuroscience, San Diego, USA, 2013

HM. Sickmann, TS. Arentzen, MP. Kristensen, TB. Dyrby, N. Plath, Prenatal stress induces sex-differences in depression-like behavior in known versus novel environments,  Proc Intl Soc Neuroscience, San Diego, USA, 2013

K.S. Frederiksen, N. Resilev, S.G. Hasselbalch, I. Law, K. Madsen, T.B. Dyrby, E. Garde, H. Siebner, G. Waldemar, Cortical beta-amyloid and microstructural properties of the corpus callosum in patients with mild to moderate ad, Journal of the Neurological Sciences, Volume 333, Supplement 1 , Page e354, 2013

Ambrosen KS, Herlau T, Dyrby TB, Schmidt M.N, Morup M,  Comparing Structural Brain Connectivity by the Infinite Relational Model, International Workshop on Pattern Recognition in Neuroimaging (PRNI). IEEE, 2013, p.50-53. 

Lundell H, Dyrby TB, Tractography-based parcellation of the cerebellum based on high-resolution diffusion tensor imaging, in proc. 19th OHBM,  2013, p. 3542

Reislev NL, Kupers R, Siebner HR, Ptito, M,  Dyrby, TD. Blindness differentially affects the integrity of the dorsal and ventral visual streams, Proc. in the 19th OHBM 2013, p 3835.

Lundell H., Sønderby C., Dyrby TB., Increasing the sensitivity of temporal diffusion spectroscopy with circularly polarized oscillating gradient spin echo, (Proceedings paper) International Society for Magnetic Resonance in Medicine, pp. 3746, 2013

Jespersen, S. N., H. Lundell, Sønderby C., Dyrby TB., Rotationally invariant double pulsed field gradient diffusion imaging. Proc. Int. Soc. Magn. Reson. Med., 2013, Salt Lake City, Utah, USA.

Lyksborg M, Larsen R, Sørensen PS, Blinkenberg M, Garde E, Siebner HR, Dyrby TB, Segmenting Multiple Sclerosis Lesions using a Spatially Constrained K-Nearest Neighbour approach, Image Analysis and Recognition, Lecture Notes in Computer Science Volume 7325, pp 156-163,2012.

Sønderby C., Lundell H., Dyrby TB., Assessing exchange between multiple compartments using multi-directional double wave diffusion sequences, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), pp.352, 2012, Melbourne, Australia, Oral

Lundell, H., Sønderby C., Vejby Søgaard, L, Dyrby TB., DTI using modulated gradients at short effective diffusion times, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), pp.355, 2012, Melbourne, Australia, Oral

Reislev N., Ptito M., Kupers R., Siebner H., Dyrby TB., Alterations of the inferior longitudinal fasciculus in congenital and late blindness, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), pp.3706, 2012, Melbourne, Australia, Poster

Zhang H., Dyrby TB., Alexander D., Axon diameter mapping in crossing fibers with diffusion MRI, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), pp.1828, 2012, Melbourne, Australia, Poster

Alexander D., Dyrby TB., Compensation for bias from unwanted gradient contributions in STEAM diffusion MRI, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), pp.1884, 2012, Melbourne, Australia, Poster

Hubbard P., Zhou F., Eichhorn S., Dyrby TB., G. Parker., A biomimetic phantom of white matter for application in diffusion MRI, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), pp.1939, 2012, Melbourne, Australia, Poster

Lyksborg M., Larsen R., Sørensen P., Blinkenberg M., Dogonowski A., Garde E., Parker G., Siebner S., Dyrby TB., Anatomical Connectivity Mapping – Measuring connectivity changes in Multiple Sclerosis, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), pp.501, 2012, Melbourne, Australia, Oral

Lyksborg M., Lundell H., Reislev N., Siebner H., Larsen R., Dyrby TB., Correcting geometric distortions of Echo Planar Imaging using demons and reversed phase encoding, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), pp.2578, 2012, Melbourne, Australia, Poster

Comparison of Diffusion Tractography and Manganese Tracing, T.R. Knösche, A. Anwander, M. Liptrot, T.B. Dyrby, (Proceedings paper) OHBM, 2011, abstract number 4267, Quebec, Canada, poster

Interpolation of DWI prior to DTI reconstruction, and its validation, T.B. Dyrby, H.M. Lundell, M.G. Liptrot, M.W. Buke, M. Ptito, H.R. Siebner. (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2011, (pp.1917), Montreal, Canada, poster

Microstructure Tracking (MicroTrack): An Algorithm for Estimating a Multiscale Hierarchical White Matter Model from Diffusion-Weighted MRI.  A.J. Sherbondy, T.B. Dyrby, M.C. Rowe, M. Ptito, B.A. Wande, D.C. Alexander, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM). 2011, (pp. 679). Montreal, Canada, Oral

A comparative study of axon diameter imaging techniques using diffusion MRI, H. Zhang, D. Barazany, Y. Assaf, H.M. Lundell, D.C. Alexander, T.B. Dyrby, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2011, (pp. 576 - 576). Montreal, Canada, Oral

Dependence of axon diameter index on maximum gradient strength, T.b. Dyrby, P.L. Hubbard, M. Ptito, M.G. Hall, D.C. Alexander, (Proceedings paper)International Society for Magnetic Resonance in Medicine (ISMRM), 2010, (pp. 83). Stockholm, Sweden, Oral

Optimized diffusion MRI protocols for estimating axon diameter with known fibre  orientation, T. Schneider, H. Lundell, T. B. Dyrby, D. C. Alexander, and C. A. Wheeler-Kingshott, (Proceedings paper) International Society for Magnetic Resonance, 2010, Stockholm, Sweden, poster

How Many Streamlines Should I Use?, M.G. Liptrot, T.B. Dyrby, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM). 2010, Pp 4015. Stockholm, Sweden, Electronic poster

Comparision study of the human brain using histology, stereology and MRI, A.S. Karlsen, T.B. Dyrby, B. Pakkenberg, 2010, Society for Neuroscience (sfn), San Diego, USA, Poster

Anatomical Organization of the Blind's Brain: Combined VBM and DTI Analysis. Wang Z;Baare WFC;Dyrby TB;Paulson OB;Kupers R;Ptito M. Poster, Annu Meet Organ Hum Brain Map 2009, Neuroimage 47(Suppl 1), 613 F-AM.

Orientationally invariant axon-size and density weighted MRI, D. C. Alexander, P. L. Hubbard, M. G. Hall, E. A. Moore, M. Ptito, G. J. Parker, T. B. Dyrby,  (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2009, Honolulu, Hawaii, Oral

Addressing the problem of path-length dependency in probabilistic tractography – The ICE-T framework, M. G. Liptrot, K. Sidaros, T. B. Dyrby , (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2009, Honolulu, Hawaii, Poster

Longitudinal changes in diffusivity after long-term storage of postmortem tissue, T. B. Dyrby, W. F. Baaré, D. C. Alexander, J. Jelsing, E. Garde, L. V. Søgaard, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2009, Honolulu, Hawaii, Poster

Estimation of Multiple Fibre Orientations using Convex Optimization, J. E. Cisternas, T. B. Dyrby, T. Asahi, M. Galvez, G. Rojas , (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2009, Honolulu, Hawaii, Poster

Regularized Q-ball Reconstruction: Robust estimation, model selection, and spatial denoising, J. E. Cisternas, P. Daza, T. Asahi, T. B. Dyrby, K. Fritzsche, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2009, Honolulu, Hawaii, Poster

Crossing fibers in lateral white matter of the cervical spinal cord detected with diffusion MRI in monkey postmortem, H. Lundell, T. Dyrby, M. Ptito, J. B. Nielsen (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2009, Honolulu, Hawaii, Poster

Cervical  corticospinal terminations visualized with diffusion MRI in the monkey spinal cord in vitro, H. Lundell, J. B. Nielsen M. Ptito, T. Dyrby, Proc Human Brain mapping, 2009, San Fransisco, USA, Poster

Diffusion Tensor Imaging and Tractography, Dyrby TB, Brain and Mind Forum, 2007, Helsinge, Denmark, Oral

Validation of multi-fibre probabilistic tractography of corticothalamic projections in the Göttingen minipig brain, Dyrby TB, Vejby Søgaard L, Parker GJ, Alexander DC, Lind NM, Paulson OB and Jelsing J, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2005, 1278. (Seattle, USA), Poster

Segmentation of Age-Related White-Matter Changes in a large-scale, multi-centre study, Dyrby T., Rostrup E., E. C. W. van Straaten, Barkhof F., Ropele S, Hansen LK, Waldemar G on behalf of the LADIS study group,  (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2005, 1278. (Seattle, USA), Poster

Validation of multi-fibre probabilistic tractography of corticothalamic projections in the Göttingen minipig brain. Dyrby TB, Vejby Søgaard L, Parker GJ, Alexander DC, Lind NM, Paulson OB and Jelsing J, 2006, Forskningsdagen Hvidovre Hospital. Denamrk, Poster

Automatic Segmentation of Age-Related White-Matter Changes in a multi-centre study, C. Ryberg, T. B. Dyrby, E. Rostrup, E. C. W. van Straaten, F. Barkhof, S. Ropele, L. K. Hansen, D. Inzitari, L. Pantoni, G. Waldemar on behalf of the LADIS study group, The 10th International Conference on Alzheimer's Disease and Related Disorders, ICAD, Madrid, Spain, July, 2006, Poster-award

Automatic Segmentation of Age-Related White-Matter Changes in a multi-centre study. C. Ryberg, T. B. Dyrby, E. Rostrup, E. C. W. van Straaten, F. Barkhof, S. Ropele, L. K. Hansen, D. Inzitari, L. Pantoni, G. Waldemar on behalf of the LADIS study group, The Alzheimer's Imaging Consortium in Madrid, Spain, July 15, 2006., Poster

Standardizing MR image Intensity In Multi-Center Studies, Dyrby T. Liptrot MG,
(Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2005. (Miami, USA), Oral presentation

Semi-Quantitative Assessment of Inflammation in dMRI using Data Mining Techniques, Liptrot M.G,, Dyrby T, Simonsen H, Søgaard LV, Brandt C, Rowland IJ. (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2005, 1278. (Miami, USA), Poster

Validation of Diffusion Tensor Imaging for in vivo tracing of cortico-thalamic projections in the Göttingen minipig brain, Dyrby TB, Lind NM, Vejby Søgaard L, Alexander DC, Parker GJM, Paulson OB  and Jelsing, J Proc Intl Soc Neuroscience 2005, 816.8 (Washington DC, USA), Oral presentation

The prefrontal cortex of the Göttingen minipig brain defined by neural projection criteria and cytoarchitecture, Jelsing J, Hay-Schmidt A, Uylings H.B.M, Dyrby T, Pakenberg B. Proc Intl Soc Neuroscience 2005 (Washington DC., USA), Poster 

Validering af diffusionsvægtet MRI for in vivo tracing af cortico-thalamus projektioner i hjernen af Göttingen minigris, Dyrby TB, Lind NM, Vejby Søgaard L, Alexander DC, Parker GJM, Paulson OB  and Jelsing J, Research Day at Hvidovre Hospital 2005, 65 (Hvidovre, DK), Poster

Alzheimer - den spæde begyndelse. Ramsoy T.Z., Liptrot M.G. Christensen M.S., Lund T.E., Dyrby T, Jernigan T.L., Baare W.F.C., Paulson O.B., Research Day at Hvidovre Hospital 2005, 59 (Hvidovre, DK), Poster

Semi-Quantitative Assessment of Inflammation in dMRI using Data Mining Techniques. Liptrot M.G., Dyrby T, Simonsen H, Søgaard L.V., Brandt C., Rowland I.J., (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), 2005, 1278. (Miami, USA), Poster

Semi-Quantitative Assessment of Inflammation in dMRI using Data Mining, Liptrot M.G., Dyrby T., Simonsen H., Søgaard L.V., Brandt C., Rowland I.J., Techniques. Proc Image Analysis and in Vivo Pharmachology 2005. (Roskilde, DK). Oral

Validation of Diffusion Tensor Imaging (DTI) for non-invasive fibre tracing in the Göttingen minipig), Jelsing J. Dyrby T., 2005, Research Day, Bispebjerg Hospital, Copenhagen DK, Poster

The prefrontal cortex of the Göttingen minipig brain defined by neural projection criteria and cytoarchitecture, Jelsing J, Hay-Schmidt A, Dyrby T, Hemmingsen R, Uylings HB, Pakkenberg B, 2005, Fourth Annual OAK Meeting, Danish Brain Research Lab. Meeting, Aarhus, DK, Oral

The prefrontal cortex of the Göttingen minipig brain defined by neural projection criteria and cytoarchitecture, Jelsing J, Hay-Schmidt A, Dyrby T, Hemmingsen R, Uylings HB, Pakkenberg B., 2005, Neurodag, The Panum Institute, Copenhagen, DK, Poster

PVE-lab:Software for correction of functional images for partial volume errors, Rask T, Dyrby T, Comerci M, Quarantelli M, Alfano B, Berkouk K, Baron J, Colchester A, Hojjat A, Knudsen G.M., Paulson O.B., Svarer C., 2004, Annu Meet Organ Hum Brain Map (WE286). 

RF inhomogenity correction: Validity of the smooth-bias approximation, Hanson LG, Dyrby T.B. 2002, (Proceedings paper) International Society for Magnetic Resonance in Medicine (ISMRM), Hawaii, USA, Poster