Leif Østergaard

  1. 2012
  2. Published

    A Fully Automated Penumbra Segmentation Tool. / Nagenthiraja, Kartheeban; Ribe, Lars Riisgaard; Hougaard, Kristina Dupont; Østergaard, Leif; Mouridsen, Kim.

    2012.

    Research output: Contribution to conferenceConference abstract for conference

  3. Published

    The roles of cerebral blood flow, capillary transit time heterogeneity, and oxygen tension in brain oxygenation and metabolism. / Jespersen, Sune Nørhøj; Østergaard, Leif.

    In: Journal of Cerebral Blood Flow and Metabolism, Vol. 32, No. 2, 01.02.2012, p. 264-277.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  4. Published

    Assessing Response to Stroke Thrombolysis : Validation of 24-Hour Multimodal Magnetic Resonance Imaging. / Campbell, Bruce C. V.; Tu, Hans T. H. ; Christensen, Søren ; Desmond, Patricia M.; Levi, Christopher R.; Blandin, Christopher F.; Hjort, Niels; Ashkanian, Mahmoud; Sølling, Christine; Donnan, Geoffrey A.; Davis, Stephen M. ; Østergaard, Leif; Parsons, Mark W.

    In: Archives of Neurology, Vol. 69, No. 1, 01.01.2012, p. 46-50.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  5. Published

    BOLD, CBF, and CBV fMRI measurements in chronic stroke patients reveal details of altered neurovascular coupling. / Donahue, Manus; Stagg, Charlotte; O'Shea, Jacinta; Jezzard, Peter; Østergaard, Leif; MacIntosh, Bradley; Johansen-Berg, Heidi; Blicher, Jakob.

    2012. Abstract from ISMRM 2012, Melbourne, Australia.

    Research output: Contribution to conferenceConference abstract for conference

  6. Published

    Combretastatin A-4 phosphate affects tumor vessel volume and size distribution as assessed using MRI-based vessel size imaging. / Nielsen, Thomas; Bentzen, Lise; Pedersen, Michael Nygaard; Tramm, Trine; Rijken, Paul F J W; Bussink, Johan; Horsman, Michael R; Østergaard, Leif.

    In: Clinical Cancer Research, Vol. 18, No. 23, 2012, p. 6469-77.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  7. Published

    Correlations between Stroop task performance and white matter lesion measures in late-onset major depression. / Dalby, Rikke Beese; Frandsen, Jesper; Mallar, Chakravarty; Ahdidan, Jamila; Sørensen, Leif; Rosenberg, Raben; Østergaard, Leif; Videbech, Poul.

    In: Psychiatry Research, Vol. 202, No. 2, 2012, p. 142-149.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  8. Published

    Dynamic susceptibility Contrast MRI: Compromising Perfusion Accuracy for a Better Discrimination of Hypoperfused Tissue. / Kjølby, Birgitte Fuglsang; Christensen, Søren; Mikkelsen, Irene Klærke; Mouridsen, Kim; Gall, Peter; Kiselev, Valerij; Østergaard, Leif.

    2012.

    Research output: Contribution to conferenceConference abstract for conference

  9. Published

    Dynamic susceptibility Contrast MRI: Improved Discrimination of Hypoperfused Tissue. / Kjølby, Birgitte Fuglsang; Christensen, Søren; Mikkelsen, Irene Klærke; Mouridsen, Kim; Gall, Peter; Kiselev, Valerij; Østergaard, Leif.

    2012.

    Research output: Contribution to conferenceConference abstract for conference

  10. Published

    Imaging of white matter infiltration end heterogeneous histopathology in cerebral gliomas – Do [11C]-methionine Positron Emission Tomography and Perfusion-weighted Magnetic Resonance Tomography yield similar results? / Tietze, Anna; Borghammer, Per; Mouridsen, Kim; Dyve, Suzan; Østergaard, Leif.

    2012. Poster session presented at European Society of Neuroradiology Annual Meeting 2012, Edinburgh, United Kingdom.

    Research output: Contribution to conferencePoster

  11. Published

    Post-stroke fMRI, a comparison of BOLD, cerebral blood flow, and cerebral blood volume responses. / Blicher, Jakob; Stagg, Charlotte; O'Shea, Jacinta; Østergaard, Leif; MacIntosh, Bradley; Johansen-Berg, Heidi; Jezzard, Peter; Donahue, Manus.

    2012. Abstract from Dansk Neurologisk Selskab, Vejle, Denmark.

    Research output: Contribution to conferenceConference abstract for conference

  12. Published

    Presymptomatic cerebral blood flow changes in CHMP2B mutation carriers of familial frontotemporal dementia (FTD-3), measured with MRI. / Lunau, Line Andersen; Mouridsen, Kim; Rodell, Anders; Østergaard, Leif; Nielsen, Jørgen Erik; Isaacs, Adrian; Johannsen, Peter; The FReJA Consortium.

    In: BMJ open, Vol. 2, e000368, 2012.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  13. Published

    Superior analgesic effect of an active distraction versus pleasant unfamiliar sounds and music : The influence of emotion and cognitive style. / Garza Villarreal, Eduardo A.; Brattico, Elvira; Vase, Lene; Østergaard, Leif; Vuust, Peter.

    In: P L o S One, Vol. 7, No. 1, 2012, p. e29397.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  14. Published

    The Göttingen minipig in translational neuroscience. / Bro, Anette; Sørensen, Jens Christian Hedemann; Nielsen, Mette Slot; Rosendahl, Frederikke; Deding, Dorthe; Ettrup, Kåre Schmidt; Jensen, Kristian Nørholm; Jørgensen, Rasmus Langelund; Glud, Andreas Nørgaard; Meidahl, Anders Christian Nørgaard; Meier, Kaare; Moberg Fitting, Lise; Møller, Arne; Alstrup, Aage Kristian Olsen; Østergaard, Leif; Bjarkam, Carsten Reidies.

    In: Ellegaard Newsletter, Vol. 38, 2012, p. 8-9.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperReview

  15. Submitted
  16. 2011
  17. Published

    Susceptibility of T(max) to tracer delay on perfusion analysis: quantitative evaluation of various deconvolution algorithms using digital phantoms. / Kudo, K; Sasaki, M; Østergaard, Leif; Christensen, Søren; Uwano, I; Suzuki, M; Ogasawara, K; Shirato, H; Ogawa, A.

    In: Journal of Cerebral Blood Flow and Metabolism, Vol. 31, No. 3, 22.09.2011, p. 908-912.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  18. Published

    Development of neuromodulation treatments in a large animal model : Do neurosurgeons dream of electric pigs? / Sørensen, Jens Christian H.; Nielsen, Mette Slot; Rosendal, Frederikke; Deding, Dorthe; Ettrup, Kåre Schmidt Ettrup; Jensen, Kristian Nørholm; Jørgensen, Rasmus Langelund; GLUD, AN; Meier, Kaare; Moberg Fitting, Lise; Møller, Arne; Alstrup, Aage Kristian Olsen; Østergaard, Leif; Bjarkam, Carsten Reidies.

    In: Progress in Brain Research, Vol. 194, 29.08.2011, p. 97-103.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperReview

  19. Published

    Assessment of baseline hemodynamic parameters within infarct progression areas in acute stroke patients using perfusion-weighted MRI. / Ritzenthaler, T; Cho, TH; Wiart, M; Berthiller, J; Østergaard, Leif; Hermier, M; Derex, L; Berthezéne, Y; Nighoghossian, Norbert.

    In: Neuroradiology, Vol. 53, No. 8, 27.08.2011, p. 571-576.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  20. Published

    Infarction of ‘non-core–non-penumbral’ tissue after stroke: Multivariate modeling of clinical impact. / Alawneh, Josef A.; Jones, Peter Simon; Mikkelsen, Irene Klærke; Cho, Tea-Hee; Siemonsen, Susanne; Mouridsen, Kim; Ribe, Lars Riisgaard; Morris, Rhiannon S.; Hjort, Niels; Antoun, Nagui; Gillard, Jonathan H.; Fiehler, Jens; Nighoghossian, Norbert; Warburton, Elizabeth A.; Østergaard, Leif; Baron, Jean-Claude.

    In: Brain, Vol. 134, No. 6, 28.05.2011, p. 1765-1776.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  21. Published

    Predicting infarction within the diffusion-weighted imaging lesion : does the mean transit time have added value? / Carrera, Emmanuel; Jones, P. Simon; Alawneh, Josef A.; Mikkelsen, Irene Klærke; Cho, Tae-Hee; Siemonsen, Suzanne; Guadagno, Joseph V.; Mouridsen, Kim; Ribe, Lars Riisgaard; Hjort, Niels; Fryer, Tim D.; Carpenter, T. Adrian; Aigbirhio, Franklin I; Fiehler, Jens; Nighoghossian, Norbert; Warburton, Elizabeth A.; Østergaard, Leif; Baron, Jean-Claude.

    In: Stroke, Vol. 42, 21.04.2011, p. 1602-7.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  22. Published

    Tapping polyrhythms in music activates language areas. / Vuust, Peter; Wallentin, Mikkel; Mouridsen, Kim; Østergaard, Leif; Roepstorff, Andreas.

    In: Neuroscience Letters, Vol. 494, No. 3, 17.03.2011, p. 211-216.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  23. Published

    Accurate and Fast Perfusion Lesion Segmentation Tool for Clinical Settings. / Nagenthiraja, Kartheeban; Ribe, Lars Riisgaard; Østergaard, Leif; Mouridsen, Kim.

    2011.

    Research output: Contribution to conferenceConference abstract for conference

  24. Published

    Automatic mean transit time lesion outlining in acute stroke using level sets. / Mouridsen, Kim; Neumann, Anders; Ribe, Lars Riisgaard; Jonsdottir, Kristjana Yr; Østergaard, Leif.

    2011.

    Research output: Contribution to conferenceConference abstract for conference

  25. Published

    Distinct neural responses to chord violations : a multiple source analysis study. / Garza Villarreal, Eduardo A; Brattico, Elvira; Leino, Sakari; Ostergaard, Leif; Vuust, Peter.

    In: Brain Research, Vol. 1389, 2011, p. 103-14.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  26. Published

    Letter to the Editor: A rejoinder to Grool et al. (2010). / Dalby, Rikke B; Rosenberg, Raben; Østergaard, Leif; Videbech, Poul.

    In: Psychological Medicine, Vol. 41, 2011, p. 446-447.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperComment/debate

  27. Published

    Post-stroke fMRI, a comparison of BOLD, cerebral blood flow, and cerebral blood volume responses. / Blicher, Jakob; Stagg, Charlotte; O'Shea, Jacinta; Østergaard, Leif; MacIntosh, Brad; Johansen-Berg, Heidi; Jezzard, Peter; Donahue, Manus.

    2011. Abstract from 1st European NeuroRehabilitation Congress, Merano, Italy.

    Research output: Contribution to conferenceConference abstract for conference

  28. Published

    Påvirkning af hjernen hos patienter med kronisk smitsom leverbetændelse vurderet ved MR-skanning. / Hjerrild, Simon; Renvillard, Signe Groth; Østergaard, Leif; Leutscher, Peter; Videbech, Poul.

    2011. Poster session presented at Psykiatriens 6. Forskningsdag, Risskov, Denmark.

    Research output: Contribution to conferencePoster

  29. Published

    Recurrent activity in higher order, modality non-specific brain regions : a Granger causality analysis of autobiographic memory retrieval. / Lou, Hans Olav Christensen; Joensson, Morten; Biermann-Ruben, Katja; Schnitzler, Alfons; Østergaard, Leif; Kjaer, Troels W; Gross, Joachim.

    In: P L o S One, Vol. 6, No. 7, e22286, 2011.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  30. Published

    Reliable estimation of capillary transit time distributions at voxel-level using DSC-MRI. / Mouridsen, Kim; Østergaard, Leif; Christensen, Søren; Jespersen, Sune Nørhøj.

    2011.

    Research output: Contribution to conferenceConference abstract for conference

  31. Published

    White Matter Lesions in Late-Onset Major Depression. / Dalby, Rikke Beese; Frandsen, Jesper; Sørensen, L; Rosenberg, Raben; Østergaard, Leif; Videbech, Poul.

    2011. Poster session presented at Dansk Psykiatrisk Selskabs Årsmøde 2011, Nyborg, Denmark.

    Research output: Contribution to conferencePoster

  32. 2010
  33. Published

    Depression severity is correlated to the integrity of white matter fiber tracts in late-onset major depression. / Dalby, Rikke Beese; Frandsen, Jesper; Mallar, Chakravarty; Ahdidan, Jamila; Sørensen, Leif; Rosenberg, Raben; Videbech, Poul; Østergaard, Leif.

    In: Psychiatry Research, Vol. 184, No. 1, 30.10.2010, p. 38-48.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  34. Published

    Localization of white-matter lesions and effect of vascular risk factors in late-onset major depression. / Dalby, R B; Chakravarty, M M; Ahdidan, J; Sørensen, Leif Hougaard; Frandsen, J; Jonsdottir, K Y; Tehrani, E; Rosenberg, R; Østergaard, L; Videbech, P.

    In: Psychological Medicine, Vol. 40, No. 8, 08.2010, p. 1389–1399.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  35. Published

    Changes in Cerebral Blood Flow in Presymptomatic Mutation Carriers of Familial Frontotemporal Dementia (FTD-3), Measured with MRI. / Lunau, Line Andersen; Mouridsen, Kim; Rodell, Anders; Nielsen, Jørgen; Isaacs, Adrian; Brown, Jerry; Zeidler, Dora; Østergaard, Leif; Eskildsen, Simon Fristed; Englund, Elisabet; Johannsen, Peter.

    2010. Abstract from International Conference on Alzheimer's Disease, Honolulu, United States.

    Research output: Contribution to conferenceConference abstract for conference

  36. Published

    The physiological significance of the time-to-maximum (Tmax) parameter in perfusion MRI. / Calamante, Fernando; Christensen, Søren; Desmond, PM; Østergaard, Leif; Davis, SM; Connelly, Alan.

    In: Stroke, Vol. 41, No. 6, 22.04.2010, p. 1169-74.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  37. Published

    Cerebral Blood Flow, Blood Volume and Mean Transit Time Responses to Propofol and Indomethacin in Peritumor and Contralateral Brain Regions: Perioperative Perfusion-weighted Magnetic Resonance Imaging in Patients with Brain Tumors. / Rasmussen, Mads; Juul, Niels; Christensen, Søren; Jonsdottir, Kristjana Yr; Gyldensted, Carsten; Vestergaard-Poulsen, Peter; Cold, Georg; Østergaard, Leif.

    In: Anesthesiology, Vol. 112, 2010, p. 50-56.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  38. Published

    Effect of hypnotic pain modulation on brain activity in patients with temporomandibular disorder pain. / Abrahamsen, Randi; Dietz, Martin; Lodahl, Sanne; Roepstorff, Andreas; Zachariae, Robert; Østergaard, Leif; Svensson, Peter.

    In: Pain, Vol. 151, No. 3, 2010, p. 825-33.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  39. Published

    Effect of hypnotic pain modulation on BOLD activity in patients with temporomandibular disorder pain. / Dietz, Martin; Abrahamsen, Randi; Roepstorff, Andreas; Zachariae, Robert; Østergaard, Leif; Svensson, Peter.

    2010. Poster session presented at 16th Annual Meeting of the Organization for Human Brain Mapping, Barcelona, Spain.

    Research output: Contribution to conferencePoster

  40. Published

    MRI prediktorer for interferon-induceret depression. / Hjerrild, Simon; Renvillard, Signe Groth; Østergaard, Leif; Leutscher, Peter; Videbech, Poul.

    2010. Poster session presented at Psykiatriens 5. Forskningsdag, Risskov, Denmark.

    Research output: Contribution to conferencePoster

  41. Published

    Neurite density from magnetic resonance diffusion measurements at ultrahigh field: comparison with light microscopy and electron microscopy. / Jespersen, Sune Nørhøj; Bjarkam, Carsten Reidies; Nyengaard, Jens Randel; Mallar, Chakravarty; Hansen, Brian; Vosegaard, Thomas; Østergaard, Leif; Yablonskiy, DA; Nielsen, Niels Christian; Vestergaard-Poulsen, Peter.

    In: NeuroImage, Vol. 49, No. 1, 2010, p. 205-16.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  42. Published

    Non-invasive imaging of combretastatin activity in two tumor models: Association with invasive estimates. / Nielsen, Thomas; Murata, Rumi; Maxwell, Ross J; Stødkilde-Jørgensen, Hans; Østergaard, Leif; Ley, Carsten D; Kristjansen, Paul E G; Horsman, Michael R.

    In: Acta Oncologica, Vol. 49, No. 7, 2010, p. 906-13.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  43. 2009
  44. Published

    Interrater agreement for final infarct MRI lesion delineation. / Neumann, Anders; Jonsdottir, Kristjana Yr; Mouridsen, Kim; Hjort, Niels; Gyldensted, Carsten; Bizzi, A; Fiehler, Jens; Gasparotti, R; Gillard, JH; Hermier, Marc; Kucinski, Thomas; Larsson, EM; Sørensen, Leif Hougaard; Østergaard, Leif.

    In: Stroke, Vol. 40, No. 12, 24.09.2009, p. 3768-71.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  45. Published

    Predicting tissue outcome in acute ischemic stroke using projection pursuit regression. / Nagenthiraja, Kartheeban; Jonsdottir, Kristjana Yr; Østergaard, Leif; Mouridsen, Kim.

    Proc. Intl. Soc. Mag. Reson. Med.. 17. ed. 2009. p. 36.

    Research output: Contribution to book/anthology/report/proceedingConference abstract in proceedings

  46. Published

    A fractal based model of diffusion MRI in cortical grey matter. / Hansen, Brian; Østergaard, Leif; Vestergaard-Poulsen, Peter.

    In: Diffusion Fundamentals, Vol. 11, 2009, p. 1-23.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  47. Published

    A fractal model of diffusion weighted MRI in cortical grey matter. / Hansen, Brian; Østergaard, Leif; Vestergaard-Poulsen, Peter.

    2009. Abstract from Diffusion Fundamentals, Athen, Greece.

    Research output: Contribution to conferenceConference abstract for conference

  48. Published

    Analysis of Partial Volume Effects on Arterial Input Functions Using Gradient Echo : A Simulation Study. / Kjølby, Birgitte Fuglsang; Mikkelsen, Irene Klærke; Pedersen, Michael; Østergaard, Leif; Kiselev, Valerij.

    2009. Abstract from ISMRM, Honolulu, Haiti.

    Research output: Contribution to conferenceConference abstract for conference

  49. Published

    Analysis of Partial Volume Effects on Arterial Input Functions Using Gradient Echo: A Simulation Study. / Kjølby, Birgitte Fuglsang; Mikkelsen, Irene Klærke; Pedersen, Michael; Østergaard, Leif; Kiselev, Vaelrij.

    In: Magnetic Resonance in Medicine, Vol. 61, No. 6, 2009, p. 1300-9.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  50. Published

    Associations between depression and cardiovascular disease in patients with late onset single episode major depressive disorder. / Devantier, Torben Albert; Videbech, Poul; Østergaard, Leif; Nørgaard, Bjarne.

    2009. Poster session presented at WFSBP, 9th World Congress of Biological Psychiatry, Paris, France.

    Research output: Contribution to conferencePoster

  51. Published

    Carbogen inhalation increases oxygen transport to hypoperfused brain tissue in patients with occlusive carotid artery disease Increased oxygen transport to hypoperfused brain. / Ashkanian, Mahmoud; Gjedde, Albert; Mouridsen, Kim; Vafaee, Manouchehr; Hansen, Kim Vang; Østergaard, Leif; Andersen, Grethe.

    In: Brain research, Vol. 1304, 2009, p. 90-95.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  52. Published

    Cerebral blood flow, blood volume and oxygen metabolism dynamics in human visual and motor cortex as measured by whole-brain multi-modal magnetic resonance imaging. / Donahue, Manus; Blicher, Jakob; Østergaard, Leif; Feinberg, David; MacIntosh, Bradley; Miller, Karla; Gunther, Matthias; Jezzard, Peter.

    In: Journal of Cerebral Blood Flow and Metabolism, Vol. 29, No. 11, 2009, p. 1856-1866.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  53. Published

    Comparison of 10 Perfusion MRI Parameters in 97 Sub 6 Hour Stroke Patients using Voxel based Receiver Operating Characteristics Analysis. / Christensen, Søren; Mouridsen, Kim; Wu, Ona; Hjort, Niels; Karstoft, Henrik; Thomalla, Götz; Röther, Joachim; Fiehler, Jens; Kucinski, Thomas; Østergaard, Leif.

    In: Stroke, Vol. 40, No. 6, 2009, p. 2055-61.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  54. Published

    Cortical volumes and atrophy rates in FTD-3 CHMP2B mutation carriers and related non-carriers. / Fristed Eskildsen, Simon; Riis Østergaard, Lasse; Rodell, Anders; Østergaard, Leif; Nielsen, Jørgen Erik; Isaacs, Adrian M.; Johannsen, Peter.

    In: NeuroImage, Vol. 45, No. 3, 2009, p. 713-21.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  55. Published

    Dose Optimization for Combined Perfusion Weighted Imaging and Constrast Enhanced MRA Using Gadofosveset. / Poulsen, Erik Søndergaard; Olsen, Aage Kristian; Zeidler, Dora; Hjort, Niels; Østergaard, Leif.

    2009. Poster session presented at ISMRM 17th Scientific Meeting and Exhibition, Honolulu, United States.

    Research output: Contribution to conferencePoster

  56. Published

    Dose optimization for combined perfusion weighed imaging and contrast enhanced MRA using Gadofosveset. / Poulsen, Erik Søndergaard; Olsen, Aage Kristian; Zeidler, Dora; Hjort, Niels; Østergaard, Leif.

    2009. Abstract from ISMRM Scientific Meeting and Exhibition, Hawaii, .

    Research output: Contribution to conferenceConference abstract for conference

  57. Published

    Effect of Vascular Targeting on Tumor Vessel Volume and Size Distribution. / Nielsen, Thomas; Bentzen, Lise Nørgaard; Pedersen, Michael; Horsman, Michael Robert; Østergaard, Leif.

    2009. Abstract from ISMRM, Honolulu, Haiti.

    Research output: Contribution to conferenceConference abstract for conference

  58. Published

    Feasibility and logistics of MRI before thrombolytic treatment. / Sølling, C; Ashkanian, M; Hjort, N; Gyldensted, C; Andersen, Grethe; Østergaard, Leif.

    In: Acta Neurologica Scandinavica, Vol. 120, No. 3, 2009, p. 143-9.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  59. Published

    Integration of diagnostic studies in amyotrophic lateral sclerosis. / Furtula, Jasna; Fuglsang-Frederiksen, Anders; Johnsen, Birger; Pugdahl, Kirsten; Christensen, Peter Brøgger; Østergaard, Leif; Sunde, Niels; Lamm, Trine Tandrup; Finnerup, Nanna Brix.

    2009. Poster session presented at PhD Day 2009, The Faculty of Health Sciences, University of Aarhus, Denmark, Aarhus, Denmark.

    Research output: Contribution to conferencePoster

  60. Published

    Predicting Tissue Outcome From Acute Stroke Magnetic Resonance Imaging : Improving Model Performance by Optimal Sampling of Training Data. / Jonsdottir, Kristjana Yr; Østergaard, Leif; Mouridsen, Kim.

    In: Stroke, Vol. 40, 2009, p. 3006-11.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  61. Published

    Predicting tissue outcome in stroke: New approaches. / Østergaard, Leif; Jonsdottir, Kristjana Yr; Mouridsen, Kim.

    In: Current Opinion in Neurology, Vol. 22, No. 1, 2009, p. 54-59.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  62. Published

    Predictive coding of music : Brain responses to rhythmic incongruity. / Vuust, Peter; Østergaard, Leif; Pallesen, Karen Johanne; Bailey, Christopher; Roepstorff, Andreas.

    In: Cortex, Vol. 45, No. 1, 2009, p. 80-92.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  63. Published

    Presymptomatic generalized brain atrophy in frontotemporal dementia caused by CHMP2B mutation. / Rohrer, Jonathan D; Ahsan, R Laila; Isaacs, Adrian M; Nielsen, Jorgen E; Østergaard, Leif; Scahill, Rachael; Warren, Jason D; Rossor, Martin N; Fox, Nick C; Johannsen, Peter; FReJA consortium.

    In: Dementia and Geriatric Cognitive Disorders, Vol. 27, No. 2, 2009, p. 182-6.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  64. Published

    Påvirkning af hjernen hos patienter med kronisk smitsom leverbetændelse vurderet ved MR-skanning. / Hjerrild, Simon; Renvillard, Signe Groth; Østergaard, Leif; Leutscher, Peter; Videbech, Poul.

    2009. Poster session presented at Psykiatriens Forskningsdag 2009, Århus, Denmark.

    Research output: Contribution to conferencePoster

  65. Published

    Quantitative t2 values predict time from symptom onset in acute stroke patients. / Siemonsen, Susanne; Mouridsen, Kim; Holst, Brigitte; Ries, Thorsten; Finsterbusch, Jürgen; Thomalla, Götz; Østergaard, Leif; Fiehler, Jens.

    In: Stroke, Vol. 40, No. 5, 2009, p. 1612-6.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  66. Published

    Safety and efficacy of MRI-based Selection for rtPA Treatment : Responder Analysis of Outcome in the 3 Hour Time Window. / Sølling, Christine; Hjort, Niels; Ashkanian, Mahmoud; Østergaard, Leif; Andersen, Grethe.

    In: Cerebrovascular Diseases, Vol. 27, No. 3, 2009, p. 223-229.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  67. Accepted/In press

    Separating Patient Cohorts into Subgroups with Homogenous Infarct Evolution using Predictive Models. / Mouridsen, Kim; Jonsdottir, Kristjana Yr; Østergaard, Leif.

    2009. Paper presented at International Stroke Conference, San Diego, United States.

    Research output: Contribution to conferencePaper

  68. Published

    Size-Dependent Accumulation of PEGylated Silane-Coated Magnetic Iron Oxide Nanoparticles in Murine Tumors. / Larsen, Esben Kjær Unmack; Nielsen, Thomas; Wittenborn, Thomas; Birkedal, Henrik; Vorup-Jensen, Thomas; Jakobsen, Mogens H; Østergaard, Leif; Horsman, Michael R; Besenbacher, Flemming; Howard, Kenneth A; Kjems, Jørgen.

    In: A C S Nano, Vol. 3, No. 7, 2009, p. 1947-51.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  69. Published

    The frontal ERAN and temporal MMN: Two different brain responses to violations in chord progressions. / Garza Villarreal, Eduardo A.; Brattico, Elvira; Leino, Sakari; Østergaard, Leif; Vuust, Peter.

    2009. Poster session presented at Braintuning Workshop 2009, Helsinki, Finland.

    Research output: Contribution to conferencePoster

  70. Published

    Total mismatch: negative diffusion-weighted imaging but extensive perfusion defect in acute stroke. / Cho, Tae-Hee; Hermier, Marc; Alawneh, Josef A; Ritzenthaler, Thomas; Desestret, Virginie; Østergaard, Leif; Derex, Laurent; Baron, Jean-Claude; Nighoghossian, Norbert.

    In: Stroke; a journal of cerebral circulation, Vol. 40, No. 10, 2009, p. 3400-2.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  71. Published

    Upgraded acute stroke care including thrombolysis is associated with reduced length of hospital stay among non-stroke patients. / Sølling, Christine; Johnsen, Søren Påske; Ehlers, Lars; Østergaard, Leif; Andersen, Grethe.

    In: Cerebrovascular Diseases, Vol. 27, No. 1, 2009, p. 60-6.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  72. Published

    White matter lesions and cerebral perfusion imaging in late-onset major depression. / Dalby, Rikke Beese; Madsen, Jamila Ahdidan; Chakravarty, MM; Sørensen, L; Rosenberg, Raben; Østergaard, Leif; Videbech, Poul.

    2009. Poster session presented at ISMRM 17th Scientific Meeting & Exhibition, Honolulu, United States.

    Research output: Contribution to conferencePoster

  73. 2008
  74. Published

    A Whole-brain Protocol for Measuring Cerebral Hemodynamic Reactivity using MRI without Contrast Agents. / Donahue, Manus; Blicher, Jakob; MacIntosh, Brad; Østergaard, Leif; Feinberg, David; Jezzard, Peter.

    2008. Poster session presented at Gordon Research Conference on Brain Energy Metabolism & Blood Flow, United States.

    Research output: Contribution to conferencePoster

  75. Published

    Accessing the mental space - Spatial working memory processes for language and vision overlap in precuneus. / Wallentin, Mikkel; Weed, Ethan; Østergaard, Leif; Mouridsen, Kim; Roepstorff, Andreas.

    In: Human Brain Mapping, Vol. 29, No. 4, 2008, p. 524-532.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  76. Published

    Acute stroke imaging research roadmap. / Wintermark, Max; Albers, Gregory W.; Alexandrov, Alexandrei V.; Alger, Jeffrey W.; Bammer, Roland; Baron, Jean-Claude; Davis, Steven; Demaerschalk, Bart; Derdeyn, Colin P.; Donnan, Geoffrey A.; Eastwood, James D.; Fiebach, Jochen B.; Fisher, Marc; Furie, Karen L.; Goldmakher, Gregory V.; Hacke, Werner; Kidwell, Chelsea C.; Kloska, Stephen P.; Köhrmann, Martin; Koroshetz, Walter; Lee, Ting-Yim; Lees, Kennedy R.; Lev, Michael H.; Liebeskind, David S; Østergaard, Leif; Powers, William J; Provenzale, James; Schellinger, Peter; Silbergleit, Robert; Sorensen, Alma Gregory; Wardlaw, Joanna; Wu, Ona; Warach, Steven.

    In: Stroke, Vol. 39, No. 5, 2008, p. 1621-8.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  77. Published

    Acute stroke imaging research roadmap. / Wintermark, Max; Albers, Gregory W.; Alexandrov, Alexandrei V.; Alger, Jeffrey R.; Bammer, Roland; Baron, Jean-Claude; Davis, Steven; Damaerschack, Bart; Derdeyn, Colin P.; Donnan, Geoffrey A.; Eastwood, James D.; Fiebach, Jochen B.; Fisher, Marc; Furie, Karen L.; Goldmakher, Gregory W.; Hacke, Werner; Kidwell, Chelsea C.; Kloska, Stephen P.; Köhrman, Martin; Koroshetz, Walter; Lee, Ting-Yim; Lees, Kennedy R; Lev, Michael H.; Liebeskind, David S.; Østergaard, Leif; Powers, William J.; Provenzale, James; Schellinger, Peter; Silbergleit, Robert; Sorensen, Alma Gregory; Wardlaw, Joanna; Wu, Ona; Warach, Steven.

    In: American Journal of Neuroradiology, Vol. 29, No. 5, 2008, p. e23-e30.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  78. Published

    Carbogen increases oxygen transport to brain tissue. / Ashkanian, Mahmoud; Borghammer, Per; Vafaee, M; Andersen, Grethe; Østergaard, Leif; Gjedde, Albert.

    2008. Poster session presented at Gordon Research Conference on Brain Energy Metabolism and Blood Flow, Andover, United States.

    Research output: Contribution to conferencePoster

  79. Published

    Clinical utility of parametric perfusion estimates in prediction of final outcome in acute stroke. / Mouridsen, Kim; Jonsdottir, Kristjana Yr; Jespersen, Sune Nørhøj; Østergaard, Leif.

    2008. Paper presented at International society of magnetic resonance in medicine, annual meeting 2008, Toronto, Canada.

    Research output: Contribution to conferencePaper

  80. Published

    Clinical utility of parametric perfusion estimates in prediction of final outcome in acute stroke. / Mouridsen, Kim; Jonsdottir, Kristjana Yr; Jespersen, Sune Nørhøj; Østergaard, Leif.

    2008. Poster session presented at ISMRM, Toronto, Canada.

    Research output: Contribution to conferencePoster

  81. Published

    Combretastatin activity in tumours: factors of importance. / Nielsen, Thomas; Murata, Rumi; Maxwell, Ross James; Stødkilde-Jørgensen, Hans; Østergaard, Leif; Ley, Carsten Dan; Kristjansen, Paul Ejnar Gremaud; Horsman, Michael Robert.

    2008. Poster session presented at 21st Annual Meeting of the Danish Cancer Research Society, Denmark.

    Research output: Contribution to conferencePoster

  82. Submitted

    Comparing relative importance of MR modalities in hyper-acute and sub-acute phase using multiparametric statistical models. / Jonsdottir, Kristjana Yr; Hjort, Niels; Østergaard, Leif; Mouridsen, Kim.

    2008. Paper presented at ISMRM, 2008, New Orleans, United States.

    Research output: Contribution to conferencePaper

  83. Published

    Diffusion tractography on white matter lesions in late-onset major depression. / Dalby, Rikke Beese; Madsen, Jamila Ahdidan; Frandsen, Jesper; Mallar, Chakravarty; Sørensen, L; Tehrani, Elisabeth; Rosenberg, Raben; Østergaard, Leif; Videbech, Poul.

    2008. Poster session presented at Neuroscience 2008 (SFN), Washington DC, United States.

    Research output: Contribution to conferencePoster

  84. Published

    Effect of combretastatin on tumor vessel volume and size distribution. / Nielsen, Thomas; Bentzen, Lise Nørgaard; Pedersen, M.; Horsman, Michael Robert; Østergaard, Leif.

    2008. Poster session presented at 20th Annual Meeting of the Danish Association for Cancer Research, Vilvorde, Denmark.

    Research output: Contribution to conferencePoster

  85. Published

    Gadofosveset in brain MRI. / Poulsen, Erik Søndergaard; Olsen, Aage Kristian; Hjort, Niels; Østergaard, Leif.

    2008. Abstract from MRI Conference, .

    Research output: Contribution to conferenceConference abstract for conference

  86. Published

    How reliable is perfusion MR in acute stroke? : Validation and determination of the penumbra threshold against quantitative PET. / Takasawa, Masashi; Jones, P. Simon; Guadagno, Joseph V.; Christensen, Søren; Fryer, Tim D.; Harding, Sally; Gillard, Jonathan H.; Williams, Guy B.; Aigbirhio, Franklin I.; Warburton, Elizabeth A.; Østergaard, Leif; Baron, Jean-Claude.

    In: Stroke, Vol. 39, No. 3, 2008, p. 870-7.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  87. Published

    Improvement of brain tissue oxygenation by inhalation of carbogen. / Ashkanian, M; Borghammer, Per; Gjedde, A; Østergaard, Leif; Vafaee, M.

    In: Neuroscience, Vol. 156, No. 4, 2008, p. 932-938.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  88. Published

    Inferring origin of vascular supply from tracer arrival timing patterns using bolus tracking MRI. / Christensen, Søren; Calamante, Fernando; Hjort, Niels; Wu, Ona; Blankholm, Anne Dorte; Desmond, Patricia; Davis, Steven; Østergaard, Leif.

    In: Journal of Magnetic Resonance Imaging, Vol. 27, No. 6, 2008, p. 1371-81.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  89. Published

    Inhalation af karbogen forbedrer ilttransporten til hjernevævet. / Ashkanian, Mahmoud; Mouridsen, Kim; Vafaee, M; Andersen, Grethe; Gjedde, Albert; Østergaard, Leif.

    2008. Poster session presented at Psykiatriens 3. Forskningsdag, Risskov, Denmark.

    Research output: Contribution to conferencePoster

  90. Published

    Kognitiv dysfunktion og depression ved kronisk hepatitis C. / Renvillard, Signe Groth; Hjerrild, Simon; Østergaard, Leif; Leutscher, Peter; Laursen, Alex Lund; Gade, A; Videbech, Poul.

    2008. Poster session presented at Psykiatriens 3. Forskningsdag, Risskov, Denmark.

    Research output: Contribution to conferencePoster

  91. Published

    MRI detection of early blood-brain barrier disruption: Parenchymal enhancement predicts focal hemorrhagic transformation after thrombolysis. / Hjort, Niels; Wu, Ona; Ashkanian, Mahmoud; Sølling, Christine; Mouridsen, Kim; Christensen, Søren; Gyldensted, Carsten; Andersen, Grethe; Østergaard, Leif.

    In: Stroke, Vol. 39, No. 3, 2008, p. 1025-8.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  92. Published

    Modelling the regulation of cerebral oxygen extraction by flow heterogeneity. / Jespersen, Sune Nørhøj; Ashkanian, Mahmoud; Mouridsen, Kim; Østergaard, Leif.

    2008. Poster session presented at Forskningens dag, Århus, Denmark.

    Research output: Contribution to conferencePoster

  93. Published

    Modelling the regulation of cerebral oxygen extraction by flow heterogeneity. / Jespersen, Sune Nørhøj; Ashkanian, Mahmoud; Mouridsen, Kim; Østergaard, Leif.

    2008. Abstract from International society of magnetic resonance in medicine, annual meeting 2008, Toronto, Canada.

    Research output: Contribution to conferenceConference abstract for conference

  94. Published

    Preclinical studies to predict efficacy of vascular changes induced by combretastatin a-4 disodium phosphate in patients. / Nielsen, Thomas; Murata, Rumi; Maxwell, Ross J; Stødkilde-Jørgensen, Hans; Østergaard, Leif; Horsman, Michael R.

    In: International Journal of Radiation: Oncology - Biology - Physics, Vol. 70, No. 3, 2008, p. 859-66.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  95. Published

    Påvirkning af hjernen hos patienter med kronisk smitsom leverbetændelse vurderet ved MR-skanning. / Hjerrild, Simon; Renvillard, Signe Groth; Østergaard, Leif; Leutscher, Peter; Laursen, Alex Lund; Videbech, Poul.

    2008. Poster session presented at Psykiatriens 3. Forskningsdag, Risskov, Denmark.

    Research output: Contribution to conferencePoster

  96. Published

    Robustness of prognostic models to interrater variability in delineating final infarct lesin. / Ribe, Lars Riisgaard; Mouridsen, Kim; Hjort, Niels; Jonsdottir, Kristjana Yr; Østergaard, Leif.

    2008. Poster session presented at International Stroke Conference, New Orleans, United States.

    Research output: Contribution to conferencePoster

  97. Published

    Sammenhænge mellem depression og kardiovaskulær sygdom hos førstegangsdeprimerede over 50 år. / Devantier, Torben Albert; Nørgaard, Bjarne Linde; Østergaard, Leif; Videbech, Poul.

    2008. Poster session presented at Psykiatriens 3. Forskningsdag, Risskov, Denmark.

    Research output: Contribution to conferencePoster

  98. Published

    Segmentation of dynamic contrast enhanced magnetic resonance imaging data. / Nielsen, Thomas; Mouridsen, Kim; Maxwell, Ross J; Stødkilde-Jørgensen, Hans; Østergaard, Leif; Horsman, Michael R.

    In: Acta Oncologica, Vol. 47, No. 7, 2008, p. 1265-70.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  99. Published
    Stroke MRI - Time is Brain!. Østergaard, Leif (Producer); Hjort, Niels (Producer); Sølling, Christine (Producer); Zeidler, Dora (Producer); Weitzel, Paul von (Producer); Nielsen, Edith (Producer); Bock, Vibeke (Producer); Bay Thomsen, Rikke (Producer); Vuust, Henriette Blæsild (Producer). 2008. Berlin : . .

    Research output: Non-textual formSound/Visual production (digital)

  100. Published

    Testing the reproducibility of Diffusion Tensor Imaging at 3.0 T. / Frandsen, Jesper; Østergaard, Leif; Jensen, Eva Bjørn Vedel.

    2008. Poster session presented at Forskningens Dag, Århus, Denmark.

    Research output: Contribution to conferencePoster

  101. Published

    The effect of impermeable boundaries of arbitrary geometry on the apparent diffusion coefficient. / Frøhlich, Astrid From; Jespersen, Sune Nørhøj; Østergaard, Leif; Kiselev, Valerij G.

    In: Journal of Magnetic Resonance, Vol. 194, No. 1, 2008, p. 128-35.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  102. Published

    Using principal component analysis and generalized linear models to predict final outcome in acute stroke. / Jonsdottir, Kristjana Yr; Østergaard, Leif; Mouridsen, Kim.

    2008. Paper presented at ISMRM, 2007, Berlin, Germany.

    Research output: Contribution to conferencePaper

  103. Published

    White matter lesions and changes in cerebral microstructure in late-onset major depression : A diffusion tensor imaging study. / Dalby, Rikke Beese; Madsen, Jamila Ahdidan; Frandsen, Jesper; Sørensen, Leif; Tehrani, Elisabeth; Rosenberg, Raben; Østergaard, Leif; Videbech, Poul.

    In: International Journal of Neuropsychopharmacology, Vol. 11, No. Suppl. S1, 2008, p. 99-99.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperConference abstract in journal

  104. 2007
  105. Published

    Statistical mapping of effects of middle cerebral artery occlusion (MCAO) on blood flow and oxygen consumption in porcine brain. / Watanabe, Hideaki; Sakoh, Masaharu; Andersen, Flemming; Rodell, Anders; Sørensen, Jens Christian Hedemann; Østergaard, Leif; Mouridsen, Kim; Cumming, Paul.

    In: Journal of Neuroscience Methods, Vol. 160, No. 1, 15.02.2007, p. 109-15.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

  106. Published

    "Strategic" and "tactical" chess differentiate in their hippocampal and precuneus requirements in expert chess players. / Wallentin, Mikkel; Roepstorff, Andreas; Vestergaard-Poulsen, Peter; Østergaard, Leif; Gebauer, Line; Linnet, Jakob; Østergaard, Svend.

    2007. Poster session presented at Society for Neuroscience, San Diego, United States.

    Research output: Contribution to conferencePoster