Møller, M., Frandsen, J., Andersen, G., Gjedde, A., Vestergaard-Poulsen, P. & Østergaard, L. (2007).
Dynamic changes in corticospinal tracts after stroke detected by fibretracking.
Journal of Neurology, Neurosurgery & Psychiatry,
78(6), 587-92.
https://doi.org/10.1136/jnnp.2006.100248
Kjølby, B. F., Morell, A., Saeboe, K., Kiselev, V. G., Haldorsen, A. G.
, Østergaard, L. & Bjørnerud, A. (2007).
Host tissue dependence on the tracer relaxation effect in Spin Echo. In
Joint Annual Meeting ISMRM-ESMRMB 2007 International Society of Magnetic Resonance in Medicine.
Wu, O., Sumii, T., Asahi, M., Sasamata, M.
, Østergaard, L., Rosen, BR., Lo, EH. & Dijkhuizen, RM. (2007).
Infarct prediction and treatment assessment with MRI-based algorithms in experimental stroke models.
Journal of Cerebral Blood Flow and Metabolism,
27(1), 196-204.
https://doi.org/10.1038/sj.jcbfm.9600328
Drasbek, M., Christiansen, G., Drasbek, K. R., Holm, A.
& Birkelund, S. (2007).
Interaction between the P1 protein of Mycoplasma pneumoniae and receptors on HEp-2 cells. Microbiology,
153, 3791-9.
Jespersen, S. N., Kroenke, CD.
, Østergaard, L., Ackerman, JJ. & Yablonskiy, DA. (2007).
Modeling dendrite density from magnetic resonance diffusion measurements.
NeuroImage,
34(4), 1473-1486.
https://doi.org/10.1016/j.neuroimage.2006.10.037
Franek, O., Pedersen, G. F., Andersen, J. B.
, Eskildsen, S. F., Østergaard, L. R., Møller, A. & Gjedde, A. (2007).
Numerical Dosimetry for the PET Study of the Cerebrometabolic Effects of Radiation from Cellphones. In
Book of abstracts of EBEA 2007 (pp. 107)
Watanabe, H., Sakoh, M., Andersen, F., Rodell, A.
, Sørensen, J. C. H., Østergaard, L., Mouridsen, K. & Cumming, P. (2007).
Statistical mapping of effects of middle cerebral artery occlusion (MCAO) on blood flow and oxygen concymption in porcine brain.
J. Neurosci. Methods.
Watanabe, H., Sakoh, M.
, Andersen, F., Rodell, A., Sørensen, J. C. H., Østergaard, L., Mouridsen, K. & Cumming, P. (2007).
Statistical mapping of effects of middle cerebral artery occlusion (MCAO) on blood flow and oxygen consumption in porcine brain.
Journal of Neuroscience Methods,
160(1), 109-15.
https://doi.org/10.1016/j.jneumeth.2006.08.016
Wallentin, M., Roepstorff, A., Vestergaard-Poulsen, P., Østergaard, L., Gebauer, L.
, Linnet, J. & Østergaard, S. (2007).
"Strategic" and "tactical" chess differentiate in their hippocampal and precuneus requirements in expert chess players. Poster session presented at Society for Neuroscience, San Diego, United States.
Hjort, N., Wu, O., Ashkanian, M., Sølling, C., Mouridsen, K., Christensen, S., Fiehler, J., Thomalla, G., Kucinski, T., Röther, J.
, Andersen, G. & Østergaard, L. (2006).
Are MRI-Based Predictive Models Comparable Among Stroke Centers?. Poster session presented at International Stroke Conference, Orlando, United States.
Nuutinen, J., Liu, Y., Laakso, MP., Karonen, JO., Roivainen, R., Vanninen, RL., Partanen, K.
, Østergaard, L., Sivenius, J. & Aronen, HJ. (2006).
Assessing the outcome of stroke: a comparison between MRI and clinical stroke scales.
Acta Neurologica Scandinavica,
113(2), 100-107.
https://doi.org/10.1111/j.1600-0404.2005.00550.x
Frandsen, J., Sangill, R., Østergaard, L., Zeidler, D. & Vestergaard-Poulsen, P. (2006).
Automatic Correction For Signal Intensity Drift in Magnetic Resonance Diffusion Weighted Images. Poster session presented at Forskningens Dag, Århus, Denmark.
Mouridsen, K., Friston, K.
, Hjort, N., Gyldensted, L., Østergaard, L. & Kiebel, S. (2006).
Bayesian estimation of perfusion parameters using a physiological model for the microvasculature.
NeuroImage,
33(2), 570-579.
https://doi.org/10.1016/j.neuroimage.2006.06.015
Johannsen, P.
, Eskildsen, S. F., Nielsen, J., Fisher, E., Zeidler, D., Rodell, A. & Østergaard, L. (2006).
Brain cortical thickness in an FTD3 patient and mutation carriers.
Alzheimer's & Dementia,
2(3,supplement), S15, No. O1-04-02.
https://doi.org/10.1016/j.jalz.2006.05.2239
Wu, O., Christensen, S., Hjort, N., Dijkhuizen, RM., Kucinski, T., Fiehler, J., Thomalla, G., Rother, J.
& Østergaard, L. (2006).
Characterizing physiological heterogeneity of infarction risk in acute human ischaemic stroke using MRI.
Brain,
129(9), 2384–2393.
https://doi.org/10.1093/brain/awl183
Gyldensted, L., Mouridsen, K., Rodell, A., Østergaard, L. & Gyldensted, C. (2006).
Contrast Bolus Magnetic Resonance Imaging in Alzheimer's Disease and Mild Cognitive Impairment. Poster session presented at 10th International Conference on Alzheimer's Disease and Related Disorders, Madrid, Spain.
Takenouchi-Ohkubo, N.
, Mortensen, L. M., Drasbek, K. R., Kilian, M. & Poulsen, K. (2006).
Horizontal transfer of the immunoglobulin A1 protease gene (iga) from Streptococcus to Gemella haemolysans.
Microbiology,
152, 2170-80.
Sølling, C., Hjort, N., Ashkanian, M., Andersen, G. & Østergaard, L. (2006).
Implementing MRI based selection Criteria for Thrombolysis in Acute Stroke within the 3 hour window: Efficacy over a 2 year period.. Abstract from Joint World Congress on Stroke 2006, Cape Town, South Africa.
Vuust, P., Roepstorff, A., Wallentin, M., Mouridsen, K. & Østergaard, L. (2006).
It don't mean a thing... Keeping the rhythm during polyrhythmic tension, activates language areas (BA47).
NeuroImage,
31(2), 832-41.
https://doi.org/10.1016/j.neuroimage.2005.12.037
Hjort, N., Ashkanian, M., Sølling, C., Andersen, G. & Østergaard, L. (2006).
Månedens billede.
Ugeskrift for Læger,
168(38), 3230.
Dalby, R. B., Tehrani, E., Ravnkilde, B., Bruun, L. M., Jensen, C. Z.
, Ahdidan, J., Østergaard, L., Rosenberg, R. & Videbech, P. (2006).
MRI Findings in Late-Onset Major Depression. Poster session presented at Dansk Psykiatrisk Selskabs Årsmøde, Nyborg, Denmark.
Dalby, R. B., Tehrani, E., Ahdidan, J., Sørensen, L. H., Bek, T., Østergaard, L., Rosenberg, R. & Videbech, P. (2006).
MRI Findings in Late-Onset Major Depression. Poster session presented at Psykiatriens Forskningsdag, Århus, Denmark.
Ahdidan, J., Hviid, L. K., Mouridsen, K., Ravnkilde, B., Rodel, A. B.
, Rosenberg, R. & Videbech, P. (2006).
MRI Morphometry of the brain in a longitudinal Study of depression. Poster session presented at 14th ISMRM Conference.
Johannsen, P., Holm, I.
, Eskildsen, S. F., Rodell, A., Isaacs, A. M., Gade, A., Nielsen, J., Ostergaard, L., Fisher, E., Colling, J. & Brown, J. (2006).
New imaging and neuropathology findings in FTD-3 patients and mutation carriers. In
5th International Conference on Frontotemporal Dementia, 6-8 September 2006, San Francisco, California, USA (pp. 49-50, No. 097)
Frandsen, J., Hobolth, A., Østergaard, L., Vestergaard-Poulsen, P. & Vedel, E. B. (2006).
Regularization of Diffusion Tensor Fields in Axonal Fibre Tracking. Poster session presented at PhD Day 2006, The Faculty of Health Sciences, Aarhus, Denmark.
Nielsen, T., Murata, R., Maxwell, R. J.
, Stødkilde-Jørgensen, H., Østergaard, L. & Horsman, M. R. (2006).
Relationship between combretastatin induced changes in DCEMRI parameters and radiation response in a murine tumour model. Abstract from PhD Day, University of Aarhus, Graduate School of Health Sciences, Århus, Denmark.
Christensen, S., Wu, O., Butcher, K.
, Hjort, N., Karstoft, H., Davis, S.
& Østergaard, L. (2006).
The Physiological Significance of the Tmax Parameter in Bolus Tracking MRI. Abstract from ISMRM 14th Annual Meeting, Seattle, United States.
Nielsen, T., Maxwell, R. J.
, Stødkilde-Jørgensen, H., Østergaard, L. & Horsman, M. R. (2006).
Transfer constant and plasma volume fraction in dynamic contrast enhanced magnetic resonance imaging: different dependencies on tumour model, size, and antivascular treatment. Abstract from 13th Scientific Meeting of the International Society for Magnetic Resonance in Medicine, Miami, United States.
Sølling, C., Hjort, N., Ashkanian, M., Weitzel-Mudersbach, P. V., Østergaard, L. & Andersen, G. (2006).
Trombolyse af apopleksipatienter: første års erfaringer og resultater på Århus Sygehus.
Ugeskrift for Læger,
168(25), 2452-2456.
Dalby, R. B., Tehrani, E., Ahdidan, J., Sørensen, L. H., Østergaard, L., Rosenberg, R. & Videbech, P. (2006).
White Matter Lesions in Late-Onset Major Depression. Poster session presented at Second Dual Congress on Psychiatry and the Neurosciences, Athen, Greece.
Perkiö, J., Soinne, L.
, Østergaard, L., Helenius, J., Kangasmäki, A., Martinkauppi, S., Salonen, O., Savolainen, S., Kaste, M., Tatlisumak, T. & Aronen, H. J. (2005).
Abnormal intravoxel cerebral blood flow heterogeneity in human ischemic stroke determined by dynamic susceptibility contrast magnetic resonance imaging.
Stroke; a journal of cerebral circulation,
36(1), 44-9.
https://doi.org/10.1161/01.STR.0000150495.96471.95
Gottrup, C., Thomsen, K., Locht, P.
, Wu, O., Sorensen, A. G., Koroshetz, W. J.
& Østergaard, L. (2005).
Applying instance-based techniques to prediction of final outcome in acute stroke.
Artificial Intelligence in Medicine,
33(3), 223-36.
https://doi.org/10.1016/j.artmed.2004.06.003
Mouridsen, K., Gyldensted, L., Friston, K.
, Østergaard, L. & Kiebel, S. (2005).
Bayesian Estimation of perfusion Parameters Using a Physiological Model of the Microvasculature. Poster session presented at ISMRM 2005, Miami, United States.
Wallentin, M., Østergaard, S., Lund, T. E., Østergaard, L. & Roepstorff, A. (2005).
Concrete spatial language: see what I mean? Brain and Language,
92(3), 221-33.
https://doi.org/10.1016/j.bandl.2004.06.106
Chen, G., Jespersen, S., Pedersen, M., Pang, Q.
, Horsman, M. R. & Stødkilde-Jørgensen, H. (2005).
Evaluation of anti-vascular therapy with texture analysis.
Anticancer Research,
25(5), 3399-3405.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Citation&list_uids=16101155
Bentzen, L., Vestergaard-Poulsen, P., Nielsen, T., Overgaard, J., Bjørnerud, A., Briley-Saebø, K.
, Horsman, M. R. & Østergaard, L. (2005).
Intravascular contrast agent-enhanced MRI measuring contrast clearance and tumor blood volume and the effects of vascular modifiers in an experimental tumor.
International Journal of Radiation Oncology, Biology, Physics,
61(4), 1208-15.
https://doi.org/10.1016/j.ijrobp.2004.12.020
Chen, G., Jespersen, S., Pedersen, M., Qi, P.
, Horsman, M. R. & Stødkilde-Jørgensen, H. (2005).
Intravenous administration of Gd-DTPA prior to DWI does not affect the apparent diffusion constant.
Magn Reson Imaging,
23(5), 685-689.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Citation&list_uids=16051044
Uldahl, M.
, Eskildsen, S. F. & Østergaard, L. R. (2005).
In vivo analysis of disease progression in Alzheimer's disease. In
Image Analysis and in-vivo Pharmacology, IAVP, Final Programme, Book of Abstracts, 7-9 April 2005, Roskilde, Denmark (pp. 17)
Hjort, N., Christensen, S., Sølling, C., Ashkanian, M., Wu, O., Røhl, L., Gyldensted, C., Andersen, G. & Østergaard, L. (2005).
Ischemic injury detected by diffusion imaging 11 minutes after stroke.
Annals of Neurology,
58(3), 462-465.
https://doi.org/10.1002/ana.20595
Hjort, N., Butcher, K., Davis, SM., Kidwell, CS., Koroshetz, WJ., Rother, J., Schellinger, PD., Warach, S.
& Østergaard, L. (2005).
Magnetic ressonance imaging criteria for thrombolysis in acute cerebral infarct.
Stroke,
36(2), 388-397.
https://doi.org/10.1161/01.STR.0000152268.47919.be
Wallentin, M., Lund, T. E., Østergaard, S., Østergaard, L. & Roepstorff, A. (2005).
Motion verb sentences activate left posterior middle temporal cortex despite static context.
NeuroReport,
16(6), 649-52.
Gyldensted, L., Madsen, J. A., Rodell, A., Mouridsen, K., Østergaard, L. & Gyldensted, C. (2005).
Perfusion Weighted MRI in Alzheimer's Disease and Mild Cognitive Impairment. Poster session presented at ISMRM 13th Scientific Meeting & Exhibition, Miami, United States.
Micklander, E., van den Berg, F., Thybo, A. K.
, Jespersen, S. & Stødkilde-Jørgensen, H. (2005).
Potato texture: digging deep with magnetic resonance imaging and chemometrics. Poster session presented at Food Congress 2005 - from Molecule to Man, DTU, Denmark.
Vuust, P., Roepstorff, A., Pallesen, K. J., Bailey, C. & Østergaard, L. (2005).
Predictive coding of rhythm - Brain responses to rhythmic incongruity. Poster session presented at Human Brain Mapping 2005, Toronto, Canada.
Vuust, P., Pallesen, K. J., Bailey, C., van Zuijen, T.
, Gjedde, A., Roepstorff, A. & Østergaard, L. (2005).
To musicians, the message is in the meter: Pre-attentive neuronal responses to incongruent rhythm are left-lateralized in musicians.
NeuroImage,
24(2), 560-4.
https://doi.org/10.1016/j.neuroimage.2004.08.039
Bjarkam, C. R., Cancian, G., Larsen, M., Rosendahl, F.
, Ettrup, K. S. E., Zeidler, D., Blankholm, A. D., Østergaard, L., Sunde, N. & Sørensen, J. C. H. (2004).
A MRI-compatible stereotaxic localizer box enables high-precision stereotaxic procedures in pigs.
Journal of Neuroscience Methods,
139(2), 293-298.
https://doi.org/10.1016/j.jneumeth.2004.05.004
Eskildsen, S. F., Uldahl, M., Østergaard, L. R., Gyldensted, L., Rodell, A. & Østergaard, L. (2004).
Automatic in vivo quantification of cortical atrophy. In
Neurodag 2004, Abstract Book, 5 November 2004, Copenhagen, Denmark (pp. Poster 61)
Rasmussen, M., Østergaard, L., Juul, N., Gyldensted, C., Poulsen, P. V. & Cold, G. E. (2004).
Do indomethacin and propofol cause cerebral ischemic damage? Diffusion-weighted magnetic resonance imaging in patients undergoing craniotomy for brain tumors.
Anesthesiology,
101(4), 872-878.
Micklander, E., van den Berg, F., Thybo, A. K.
, Jespersen, S. & Stødkilde-Jørgensen, H. (2004).
Multivirate chemometric analsyis of Magnetic Resoancne Images in relation to food quality. Poster session presented at Conference on Applicatio of Magnetic Resonance in Food Science, København, Denmark.
Pedersen, M., Klarhöfer, M.
, Christensen, S., Ouallet, J. P.
, Østergaard, L., Dousset, V. & Moonen, C. (2004).
Quantitative cerebral perfusion using the PRESTO acquisition scheme.
Journal of Magnetic Resonance Imaging,
20(6), 930-940.
https://doi.org/10.1002/jmri.20206
Vestergaard-Poulsen, P., Jakobsen, R.
, Hansen, B., Nørregaard Laursen, T.
& Østergaard, L. (2004).
The importance of transverse relaxation in modeling water self diffusion in brain tissue. Poster session presented at International Society of Magnetic Resonance in Medicine, Kyoto, 2004.
Olsen, A. K., Watanabe, H.
, Bjarkam, C. R., Rodell, A.
, Zeidler, D., Blankholm, A. D., Cumming, P.
, Gyldensted, C., Østergaard, L., Vestergaard-Poulsen, P. & Gjedde, A. (2003).
A porcine model for long-term stroke studies. Abstract from ScandLAS Symposium, Lahti, Finland.
Helenius, J., Perkio, J., Soinne, L.
, Østergaard, L., Carano, R. A., Salonen, O., Savolainen, S., Kaste, M., Aronen, H. J. & Tatlisumak, T. (2003).
Cerebral hemodynamics in a healthy population measured by dynamic susceptibility contrast MR imaging.
Acta Radiologica,
44, 538-546.
Wu, O., Østergaard, L., Koroshetz, W. J., Schwamm, L. H., O'Donnell, J., Schaefer, P. W., Rosen, B. R., Weisskoff, R. M. & Sorensen, A. G. (2003).
Effects of tracer arrival time on flow estimates in MR perfusion-weighted imaging.
Magnetic Resonance in Medicine,
50(4), 856-64.
https://doi.org/10.1002/mrm.10610
Watanabe, H.
, Olsen, A. K., Bjarkam, C. R., Rodell, A.
, Zeidler, D., Blankholm, A. D., Østergaard, L., Gyldensted, C., Cumming, P.
& Gjedde, A. (2003).
Evolving relations between cerebral blood flow and oxygen metabolism after middle cerebral artery occlusion in the porcine chronic stroke model. Abstract from European Stroke Conference, Valencia, Spain.
Sakoh, M., Ohnishi, T.
, Østergaard, L. & Gjedde, A. (2003).
Prediction of tissue survival after stroke based on changes in the apparent diffusion of water (cytotoxic edema). In T. Kuroiwa, A. Baethmann, Z. Czernicki, J. T. Hoff, U. Ito, Y. Katayama, A. Marmarou, B. A. D. Mendelow & H.-J. Reulen (Eds.),
Brain Edema XII: Proceedings of the 12th International Symposium, Hakone, Japan, November 10–13, 2002 (Vol. 86, pp. 137-40)
https://doi.org/10.1007/978-3-7091-0651-8_29
Wu, O., Østergaard, L., Koroshetz, W. J., Schwamm, L. H., ODonnell, J., Schaefer, P. W., Rosen, B. R., Weisskoff, R. M. & Sorensen, A. G. (2003).
Tracer arrival timing insensitive technique for estimating flow in MR perfusion-weighted imaging using singular value decomposition with a block-circulant deconvolution matrix.
Magnetic Resonance in Medicine,
50(1), 164-174.
https://doi.org/10.1002/mrm.10522
Perkiö, J., Aronen, H. J., Kangasmäki, A., Liu, Y., Karonen, J., Savolainen, S.
& Østergaard, L. (2002).
Evaluation of four postprocessing methods for determination of cerebral blood volume and mean transit time by dynamic susceptibility contrast imaging.
Magnetic Resonance in Medicine,
47(5), 973-81.
https://doi.org/10.1002/mrm.10126
Simonsen, C. Z., Røhl, L., Vestergaard-Poulsen, P., Gyldensted, C., Andersen, G. & Østergaard, L. (2002).
Final infarct size after acute stroke: prediction with flow heterogeneity.
Radiology,
225(1), 269-75.
https://doi.org/10.1148/radiol.2251011249
Yamada, K., Gonzalez, R. G.
, Østergaard, L., Komili, S., Weisskoff, R. M., Rosen, B. R., Koroshetz, W. J., Nishimura, T. & Sorensen, A. G. (2002).
Iron-induced susceptibility effect at the globus pallidus causes underestimation of flow and volume on dynamic susceptibility contrast-enhanced MR perfusion images.
American Journal of Neuroradiology,
23(6), 1022-9.
Yamada, K.
, Wu, O., Gonzalez, R. G., Bakker, D.
, Østergaard, L., Copen, W. A., Weisskoff, R. M., Rosen, B. R., Yagi, K., Nishimura, T. & Sorensen, A. G. (2002).
Magnetic resonance perfusion-weighted imaging of acute cerebral infarction: effect of the calculation methods and underlying vasculopathy.
Stroke; a journal of cerebral circulation,
33(1), 87-94.
https://doi.org/10.1161/hs0102.101893
Andersen, I. K., Szymkowiak, A., Hanson, L. G., Marstrand, J. R., Larsson, H. B. W. & Hansen, L. K. (2002).
Perfusion quantification using Gaussian process deconvolution.
Magnetic Resonance in Medicine,
48(2), 351-61.
https://doi.org/10.1002/mrm.10213
Aronen, H. J., Perkiö, J., Karonen, J. O., Vanninen, R. L.
, Østergaard, L., Liu, Y., Könönen, M., Vanninen, E. J., Soimakallio, S. & Kuikka, J. T. (2002).
Perfusion-weighted MRI in human acute ischemic stroke: a comparison with the progression of the infarct on diffusion-weighted images.
Academic Radiology,
9(Suppl 1), S160-4.
https://doi.org/10.1016/S1076-6332(03)80427-0
Røhl, L., Sakoh, M.
, Simonsen, C. Z., Vestergaard-Poulsen, P., Sangill, R., Sørensen, J. C. H., Bjarkam, C., Gyldensted, C. & Østergaard, L. (2002).
Time evolution of cerebral perfusion and apparent diffusion coefficient measured by magnetic resonance imaging in a porcine stroke model.
Journal of Magnetic Resonance Imaging,
15(2), 123-9.
https://doi.org/10.1002/jmri.10068
Smith, D. F., Hansen, S. B., Østergaard, L., Gee, A. D.
, Danielsen, E., Ishizu, K.
, Bender, D., Poulsen, P. H.
& Gjedde, A. (2001).
[14C]Serotonin uptake and [O-methyl-11C]venlafaxine kinetics in porcine brain. Nuclear Medicine and Biology,
28(6), 633-8.
https://doi.org/10.1016/S0969-8051(01)00230-X
Røhl, L., Geday, J., Østergaard, L., Simonsen, C. Z., Vestergaard-Poulsen, P., Andersen, G., Le Bihan, D.
& Gyldensted, C. (2001).
Correlation between diffusion- and perfusion-weighted MRI and neurological deficit measured by the Scandinavian Stroke Scale and Barthel Index in hyperacute subcortical stroke (< or = 6 hours).
Cerebrovascular Diseases,
12(3), 203-213.
https://doi.org/10.1159/000047705
Karonen, J. O.
, Østergaard, L., Vainio, P., Partanen, K., Vanninen, R., Vanninen, E., Korhonen, K., Haapamäki, S., Liu, Y., Roivainen, R., Onatsu, J., Nuutinen, J., Könönen, M., Sivenius, J., Kuikka, J. & Aronen, H. J. (2001).
Diffusion and perfusion MR imaging in acute ischemic stroke: a comparison to SPECT.
Computer Methods and Programs in Biomedicine,
66(1), 125-8.
https://doi.org/10.1016/S0169-2607(01)00146-8
Danielsen, E. H., Smith, D. F., Andersen, F., Gee, A. D.
, Bender, D., Hansen, S. B., Hermansen, F., Østergaard, L., Cumming, P. & Gjedde, A. (2001).
FDOPA metabolism in the adult porcine brain: influence of tracer circulation time and VOI selection on estimates of striatal DOPA decarboxylation. Journal of Neuroscience Methods,
111(2), 157-68.
https://doi.org/10.1016/S0165-0270(01)00453-8
Sidaros, K.
, Andersen, I. K., Gesmar, H., Rostrup, E. & Larsson, H. B. (2001).
Improved perfusion quantification in FAIR imaging by offset correction.
Magnetic Resonance in Medicine,
46(1), 193-7.
Simonsen, C. Z., Røhl, L., Østergaard, L., Vestergaard-Poulsen, P., Andersen, G. & Gyldensted, C. (2001).
MR-scanning ved akut apopleksi.
Ugeskrift for Læger,
163(17), 2368-72.
Wu, O., Koroshetz, W. J.
, Østergaard, L., Buonanno, F. S., Copen, W. A., Gonzalez, R. G., Rordorf, G., Rosen, B. R., Schwamm, L. H., Weisskoff, R. M. & Sorensen, A. G. (2001).
Predicting tissue outcome in acute human cerebral ischemia using combined diffusion- and perfusion-weighted MR imaging.
Stroke; a journal of cerebral circulation,
32(4), 933-42.
https://doi.org/10.1161/01.STR.32.4.933
Sakoh, M.
, Østergaard, L., Gjedde, A., Røhl, L., Vestergaard-Poulsen, P., Smith, D. F., Le Bihan, D., Sakaki, S.
& Gyldensted, C. (2001).
Prediction of tissue survival after middle cerebral artery occlusion based on changes in the apparent diffusion of water. Journal of Neurosurgery,
95(3), 450-8.
Lin, W., Celik, A., Derdeyn, C., An, H., Lee, Y., Videen, T.
, Østergaard, L. & Powers, W. J. (2001).
Quantitative measurements of cerebral blood flow in patients with unilateral carotid artery occlusion: a PET and MR study.
Journal of Magnetic Resonance Imaging,
14(6), 659-67.
https://doi.org/10.1002/jmri.10021
Røhl, L., Østergaard, L., Simonsen, C. Z., Vestergaard-Poulsen, P., Andersen, G., Sakoh, M., Le Bihan, D.
& Gyldensted, C. (2001).
Viability thresholds of ischemic penumbra of hyperacute stroke defined by perfusion-weighted MRI and apparent diffusion coefficient.
Stroke,
32, 1140-1146.
https://doi.org/10.1161/01.STR.32.5.1140
Andersen, I. K., Sidaros, K., Gesmara, H., Rostrup, E. & Larsson, H. B. (2000).
A model system for perfusion quantification using FAIR.
Magnetic Resonance Imaging,
18(5), 565-74.
Wirestam, R., Andersson, L.
, Østergaard, L., Bolling, M., Aunola, J., Lindgren, A., Geijer, B., Holtås, S. & Ståhlberg, F. (2000).
Assessment of regional cerebral blood flow by dynamic susceptibility contrast MRI using different deconvolution techniques.
Magnetic Resonance in Medicine,
43(5), 691-700.
https://doi.org/10.1002/(SICI)1522-2594(200005)43:5<691::AID-MRM11>3.0.CO;2-B
Sakoh, M.
, Røhl, L., Gyldensted, C., Gjedde, A. & Østergaard, L. (2000).
Cerebral blood flow and blood volume measured by magnetic resonance imaging bolus tracking after acute stroke in pigs: comparison with [(15)O]H(2)O positron emission tomography. Stroke,
31(8), 1958-64.
https://doi.org/10.1161/01.STR.31.8.1958
Bergholt, B., Østergaard, L., Oettingen, G. V., Johannsen, P., Poulsen, P. H., Bundgaard, H., Asboe, H.
, Cold, G., Gjedde, A., Gyldensted, C. & Astrup, J. (2000).
Cerebral blood flow in volunteers measured by PET and Xe CT/CBF: A comparison.
Keio Journal of Medicine,
49(Suppl 1), 55-57.
https://doi.org/10.2302/kjm.49.supplement1_A51
Chabriat, H., Pappata, S.
, Østergaard, L., Clark, C. A., Pachot-Clouard, M., Vahedi, K., Jobert, A., Le Bihan, D. & Bousser, M. G. (2000).
Cerebral hemodynamics in CADASIL before and after acetazolamide challenge assessed with MRI bolus tracking.
Stroke,
31(8), 1904-12.
https://doi.org/10.1161/01.STR.31.8.1904
Liu, Y., Karonen, J. O., Vanninen, R. L.
, Østergaard, L., Roivainen, R., Nuutinen, J., Perkiö, J. P., Könönen, M., Hämäläinen, A., Vanninen, E. J., Soimakallio, S., Kuikka, J. T. & Aronen, H. J. (2000).
Cerebral Hemodynamics in Human Acute Ischemic Stroke: A Study with Diffusion- and Perfusion-Weighted Magnetic Resonance Imaging and SPECT.
Journal of Cerebral Blood Flow and Metabolism,
20(6), 910-920.
https://doi.org/10.1097/00004647-200006000-00003
Østergaard, L., Sorensen, A. G., Chesler, D. A., Weisskoff, R. M., Koroshetz, W. J.
, Wu, O., Gyldensted, C. & Rosen, B. R. (2000).
Combined diffusion-weighted and perfusion-weighted flow heterogeneity magnetic resonance imaging in acute stroke.
Stroke,
31(5), 1097-103.
https://doi.org/10.1161/01.STR.31.5.1097
Karonen, J. O., Liu, Y., Vanninen, R. L.
, Østergaard, L., Kaarina Partanen, P. L., Vainio, P. A., Vanninen, E. J., Nuutinen, J., Roivainen, R., Soimakallio, S., Kuikka, J. T. & Aronen, H. J. (2000).
Combined perfusion- and diffusion-weighted MR imaging in acute ischemic stroke during the 1st week: a longitudinal study.
Radiology,
217(3), 886-94.
https://doi.org/10.1148/radiology.217.3.r00dc02886
Simonsen, C. Z., Østergaard, L., Smith, D. F., Vestergaard-Poulsen, P. & Gyldensted, C. (2000).
Comparison of gradient- and spin-echo imaging: CBF, CBV, and MTT measurements by bolus tracking.
Journal of Magnetic Resonance Imaging,
12(3), 411-6.
https://doi.org/10.1002/1522-2586(200009)12:3<411::AID-JMRI6>3.0.CO;2-5
Perkiö, J., Aronen, H. J., Karonen, J., Liu, Y., Savolainen, S.
& Østergaard, L. (2000).
Determination of Cerebral Blood Volume and Mean Transit Time by Dynamic Contrast Enhanced MR Imaging in Patients with Acute Stroke: A Comparison of Four Post Processing Methods. In
Proc. Intl. Sot. Mag. Reson. Med. 8 (pp. 527-527)
Perkiö, J., Soinne, L.
, Østergaard, L., Tatlisumak, T., Kangsmäki, A., Helenius, J., Martinkauppi, S., Salonen, O., Savolainen, S., Kaste, M. & Aronen, H. J. (2000).
Dynamic MR Bolus Tracking in Hyperacute Stroke: Comparison with Diffusion Weighted MR Imaging. In
Proc. Intl. Soc. Mag. Reson. Med. 8 (pp. 450-450)
Benner, T., Tombach, B., Synnott, J. P., Schuierer, G., Reimer, P., Geens, V.
, Østergaard, L. & Sorensen, A. G. (2000).
Human Cerebral Blood Flow Maps Improve with Higher Concentration of Contrast Agent. In
ISMRM 8th Scientific Meeting & Exhibition - Proceedings
Bentzen, L. N., Vestergaard-Poulsen, P., Horsman, M. R.
, Overgaard, J., Bjørnerud, A., Briley-Sæbø, K.
, Gyldensted, C. & Østergaard, L. (2000).
NC100150 Enhanced Imaging Offers the Possibility to Monitor Pharmacological Modification of Tumor Blood Flow and Blood Volume in Experimental Tumors in Mice. In
ISMRM 8th Scientific Meeting & Exhibition - Proceedings Article 2030
von Oettingen, G., Bergholt, B., Rasmussen, M., Østergaard, L. & Astrup, J. (2000).
Pulmonary function affects the quantification of rCBF by non-invasive xenon methods.
Journal of Neuroscience Methods,
95(2), 159-69.
https://doi.org/10.1016/S0165-0270(99)00179-X
Li, T.-Q., Chen, Z. G.
, Østergaard, L., Hindmarsh, T. & Moseley, M. E. (2000).
Quantification of Cerebral Blood Flow by Using Bolus Tracking and Artery Spin Tagging Methods.
Magnetic Resonance Imaging,
18(5), 503-512.
https://doi.org/10.1016/S0730-725X(00)00137-5
Lythgoe, D. J.
, Østergaard, L., William, S. C., Cluckie, A., Buxton-Thomas, M., Simmons, A. & Markus, H. S. (2000).
Quantitative perfusion imaging in carotid artery stenosis using dynamic susceptibility contrast-enhanced magnetic resonance imaging.
Magnetic Resonance Imaging,
18(1), 1-11.
https://doi.org/10.1016/S0730-725X(99)00112-5
Markus, H. S., Lythgoe, D.
, Østergaard, L., O'Sullivan, M. & Williams, S. C. R. (2000).
Reduced cerebral blood flow in white matter in ischaemic leukoaraiosis demonstrated using quantitative exogenous contrast based perfusion MRI.
Journal of Neurology, Neurosurgery & Psychiatry,
69(1), 48-53.
https://doi.org/10.1136/jnnp.69.1.48
Wirestam, R., Ryding, E., Lindgren, A., Geijer, B.
, Østergaard, L., Andersson, L., Holtås, S. & Ståhlberg, F. (2000).
Regional cerebral blood flow distributions in normal volunteers: dynamic susceptibility contrast MRI compared with 99mTc-HMPAO SPECT.
Journal of Computer Assisted Tomography,
24(4), 526-30.
Sakoh, M.
, Østergaard, L., Røhl, L., Smith, D. F., Simonsen, C. Z., Sørensen, J. C. H., Vestergaard-Poulsen, P., Gyldensted, C., Sakaki, S.
& Gjedde, A. (2000).
Relationship between residual cerebral blood flow and oxygen metabolism as predictive of ischemic tissue viability: sequential multitracer positron emission tomography scanning of middle cerebral artery occlusion during the critical first 6 hours after stroke in pigs. Journal of Neurosurgery,
93(4), 647-57.
Danielsen, E. H., Cumming, P., Andersen, F.
, Bender, D., Brevig, T., Falborg, L., Gee, A., Gillings, N. M., Hansen, S. B., Hermansen, F., Johansen, J., Johansen, T. E., Dahl-Jørgensen, A., Jørgensen, H. A., Meyer, M.
, Munk, O. L., Pedersen, E. B., Poulsen, P. H., Rodell, A. B.
... Møller, A. (2000).
The DaNeX Study of Embryonic Mesencephalic Dopaminergic Tissue Grafted to a Minipig model of Parkinson's disease: Preliminary Findings of Effect of MPTP-Poisoning on Striatal Dopaminergic Markers.
Cell Transplantation,
9(2), 247-259.
Oettingen, G. V., Bergholt, B., Østergaard, L., Rasmussen, M., Gyldensted, C. & Astrup, J. (2000).
The influence of the input function on quantitative rCBF by the Xe/CT method.
Keio Journal of Medicine,
49(Suppl 1), 11-15.
Røhl, L., Østergaard, L., Simonsen, C. Z., Vestergaard-Poulsen, P., Andersen, G., Le Bihan, D.
& Gyldensted, C. (2000).
Viability Thresholds of the Penumbra of Acute Human Ischemic Stroke Defined from rCBF and rCBV.
Proc ISMRM, 452-452.
von Oettingen, G., Bergholt, B., Østergaard, L., Jensen, L. C., Gyldensted, C. & Astrup, J. (2000).
Xenon CT cerebral blood flow in patients with head injury: influence of pulmonary trauma on the input function.
Neuroradiology,
42(3), 168-73.
Zelaya, F., Flood, N., Chalk, J. B., Wang, D., Doddrell, D. M., Strugnell, W., Benson, M.
, Østergaard, L., Semple, J. & Eagle, S. (1999).
An evaluation of the time dependence of the anisotropy of the water diffusion tensor in acute human ischemia.
Magnetic Resonance Imaging,
17(3), 331-48.
https://doi.org/10.1016/S0730-725X(98)00192-1
Simonsen, C. Z., Østergaard, L., Vestergaard-Poulsen, P., Røhl, L., Bjørnerud, A.
& Gyldensted, C. (1999).
CBF and CBV measurements by USPIO bolus tracking: reproducibility and comparison with Gd-based values.
Journal of Magnetic Resonance Imaging,
9(2), 342-7.
https://doi.org/10.1002/(SICI)1522-2586(199902)9:2<342::AID-JMRI29>3.0.CO;2-B
Karonen, J. O., Vanninen, R. L., Liu, Y.
, Østergaard, L., Kuikka, J. T., Nuutinen, J., Vanninen, E. J., Partanen, P. L., Vainio, P. A., Korhonen, K., Perkiö, J., Roivainen, R., Sivenius, J. & Aronen, H. J. (1999).
Combined diffusion and perfusion MRI with correlation to single-photon emission CT in acute ischemic stroke. Ischemic penumbra predicts infarct growth.
Stroke,
30(8), 1583-90.
https://doi.org/10.1161/01.STR.30.8.1583
Østergaard, L., Hochberg, F. H., Rabinov, J. D., Sorensen, A. G., Lev, M., Kim, L., Weisskoff, R. M., Gonzalez, R. G.
, Gyldensted, C. & Rosen, B. R. (1999).
Early changes measured by magnetic resonance imaging in cerebral blood flow, blood volume, and blood-brain barrier permeability following dexamethasone treatment in patients with brain tumors.
Journal of Neurosurgery,
90(2), 300-5.
Sorensen, A. G., Copen, W. A.
, Østergaard, L., Buonanno, F. S., Gonzalez, R. G., Rordorf, G., Rosen, B. R., Schwamm, L. H., Weisskoff, R. M. & Koroshetz, W. J. (1999).
Hyperacute stroke: simultaneous measurement of relative cerebral blood volume, relative cerebral blood flow, and mean tissue transit time.
Radiology,
210(2), 519-27.
https://doi.org/10.1148/radiology.210.2.r99fe06519
Østergaard, L., Chesler, D. A., Weisskoff, R. M., Sorensen, A. G. & Rosen, B. R. (1999).
Modeling cerebral blood flow and flow heterogeneity from magnetic resonance residue data.
Journal of Cerebral Blood Flow and Metabolism,
19(6), 690-9.
https://doi.org/10.1097/00004647-199906000-00013
Røhl, L., Østergaard, L., Simonsen, C. Z., Vestergaard-Poulsen, P., Sørensen, L., Bjørnerud, A., Saebø, K. B.
& Gyldensted, C. (1999).
NC100150-enhanced 3D-SPGR MR angiography of the common carotid artery in a pig vascular stenosis model: Quantification of stenosis and dose optimization.
Acta Radiologica,
40(3), 282-90.
https://doi.org/10.3109/02841859909175555
Sanchez del Rio, M., Bakker, D.
, Wu, O., Agosti, R., Mitsikostas, D. D.
, Østergaard, L., Wells, W. A., Rosen, B. R., Sorensen, G., Moskowitz, M. A. & Cutrer, F. M. (1999).
Perfusion weighted imaging during migraine: spontaneous visual aura and headache.
Cephalalgia,
19(8), 701-7.
Østergaard, L., Smith, D. F., Vestergaard-Poulsen, P., Hansen, S. B., Gee, A. D.
, Gjedde, A. & Gyldensted, C. (1998).
Absolute cerebral blood flow and blood volume measured by magnetic resonance imaging bolus tracking: comparison with positron emission tomography values.
Journal of Cerebral Blood Flow and Metabolism,
18(4), 425-32.
https://doi.org/10.1097/00004647-199804000-00011
Østergaard, L., Johannsen, P., Høst-Poulsen, P.
, Vestergaard-Poulsen, P., Asboe, H., Gee, A. D.
, Hansen, S. B., Cold, G. E., Gjedde, A. & Gyldensted, C. (1998).
Cerebral blood flow measurements by magnetic resonance imaging bolus tracking: comparison with [(15)O]H2O positron emission tomography in humans.
Journal of Cerebral Blood Flow and Metabolism,
18(9), 935-40.
https://doi.org/10.1097/00004647-199809000-00002
Cutrer, F. M., Sorensen, A. G., Weisskoff, R. M.
, Østergaard, L., Sanchez del Rio, M., Lee, E. J., Rosen, B. R. & Moskowitz, M. A. (1998).
Perfusion-weighted imaging defects during spontaneous migrainous aura.
Annals of Neurology,
43(1), 25-31.
https://doi.org/10.1002/ana.410430108
Sorensen, A. G., Tievsky, A. L.
, Østergaard, L., Weisskoff, R. M. & Rosen, B. R. (1997).
Contrast agents in functional MR imaging.
Journal of Magnetic Resonance Imaging,
7(1), 47-55.
Poulsen, P. H.
, Smith, D. F., Østergaard, L., Danielsen, E. H., Gee, A.
, Hansen, S. B., Astrup, J.
& Gjedde, A. (1997).
In vivo estimation of cerebral blood flow, oxygen consumption and glucose metabolism in the pig by [15O]water injection, [15O]oxygen inhalation and dual injections of [18F]fluorodeoxyglucose.
Journal of Neuroscience Methods,
77(2), 199-209.
https://doi.org/10.1016/S0165-0270(97)00127-1
Østergaard, L., Sorensen, A. G., Kwong, K. K., Weisskoff, R. M.
, Gyldensted, C. & Rosen, B. R. (1996).
High resolution measurement of cerebral blood flow using intravascular tracer bolus passages. Part II: Experimental comparison and preliminary results.
Magnetic Resonance in Medicine,
36(5), 726-36.
https://doi.org/10.1002/mrm.1910360511
Østergaard, L., Weisskoff, R. M., Chesler, D. A.
, Gyldensted, C. & Rosen, B. R. (1996).
High resolution measurement of cerebral blood flow using intravascular tracer bolus passages. Part I: Mathematical approach and statistical analysis.
Magnetic Resonance in Medicine,
36(5), 715-25.
https://doi.org/10.1002/mrm.1910360510
Kwong, K. K., Chesler, D. A., Weisskoff, R. M., Donahue, K. M., Davis, T. L.
, Østergaard, L., Campbell, T. A. & Rosen, B. R. (1995).
MR perfusion studies with T1-weighted echo planar imaging.
Magnetic Resonance in Medicine,
34(6), 878-87.
https://doi.org/Harvard-MIT Division of Health Sciences & Technology