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Bispebjerg Hospital - a part of Copenhagen University Hospital

Niels Alexander Lassen

(Former)

  1. 2000
  2. Published

    Dopamine D(2) receptor quantification in extrastriatal brain regions using [(123)I]epidepride with bolus/infusion

    Pinborg, L. H., Videbaek, C., Knudsen, G. M., Swahn, C. G., Halldin, C., Friberg, L., Paulson, O. B. & Lassen, N. A., 15 Jun 2000, In : Synapse (New York). 36, 4, p. 322-9 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. 1999
  4. Published

    Vestibularis-schwannomers diagnostik og vaekst bedømt ved SPECT kombineret med TL-201 Thallium

    Charabi, S., Lassen, N. A., Jacobsen, G. K., Tos, M., Thomsen, J. C. & Rossen, K., 3 May 1999, In : Ugeskrift for Laeger. 161, 18, p. 2673-8 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. 1998
  6. Published

    Activation-induced resetting of cerebral oxygen and glucose uptake in the rat

    Madsen, P. L., Linde, R., Hasselbalch, S. G., Paulson, O. B. & Lassen, N. A., Jul 1998, In : Journal of Cerebral Blood Flow and Metabolism. 18, 7, p. 742-8 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Activation-induced resetting of cerebral oxygen and glucose uptak in the rat

    Madsen, PL., Linde, R., Hasselbalch, S. G., Paulson, O. B. & Lassen, N. A., 1998, In : Journal of Cerebral Blood Flow and Metabolism. p. 742-8 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. 1997
  9. Published

    SPECT og PET i neurobiologien

    Paulson, O. B. & Lassen, N. A., Dec 1997, In : Nordisk medicin. 112, 10, p. 356-60 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    The metabolic and hemodynamic events secondary to functional activation--notes from a workshop held in Akita, Japan

    Lassen, N. A. & Kanno, I., Oct 1997, In : Magnetic Resonance in Medicine. 38, 4, p. 521-3 3 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Indomethacin nedsaetter hjernegennemblødningen og det intrakranielle tryk

    Lassen, N. A. & Paulson, O. B., 30 Jun 1997, In : Ugeskrift for Laeger. 159, 27, p. 4249

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    SPECT og PET i neurobiologien

    Paulson, O. B. & Lassen, N. A., 14 Apr 1997, In : Ugeskrift for Laeger. 159, 16, p. 2351-5 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    123I-iomazenil as a clinical tool for studying neuronal loss

    Postiglione, A., Soricelli, Salvatore, M. & Lassen, N. A., Apr 1997, In : American Geriatrics Society. Journal. 45, 4, p. 534-6 3 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Incomplete brain infarction of reperfused cortex may be quantitated with iomazenil

    Nakagawara, J., Sperling, B. & Lassen, N. A., Jan 1997, In : Stroke; a journal of cerebral circulation. 28, 1, p. 124-32 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Thallium chloride 201Tl combined with single photon emission computed tomography (SPECT) in the evaluation of vestibular schwannoma growth

    Charabi, S. A., Lassen, N. A., Thomsen, J., Tos, M., Rossen, K. J. & Jacobsen, G. K., Jan 1997, In : Acta Oto-Laryngologica. 117, 1, p. 35-40 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. 1996
  17. Published

    Middle cerebral artery blood velocity and plasma catecholamines during exercise

    Pott, F., Jensen, K., Hansen, H., Christensen, N. J., Lassen, N. A. & Secher, N. H., Dec 1996, In : Acta Physiologica Scandinavica. Supplementum. 158, 4, p. 349-56 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Epidemiologic assessment of the role of blood pressure in stroke

    Lassen, N. A., 16 Oct 1996, In : J A M A: The Journal of the American Medical Association. 276, 15, p. 1279-80 2 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    Reduced cortical distribution volume of iodine-123 iomazenil in Alzheimer's disease as a measure of loss of synapses

    Soricelli, A., Postiglione, A., Grivet-Fojaja, M. R., Mainenti, P. P., Discepolo, A., Varrone, A., Salvatore, M. & Lassen, N. A., Oct 1996, In : European Journal of Nuclear Medicine and Molecular Imaging. 23, 10, p. 1323-8 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Brain SPECT and thrombolysis in acute ischemic stroke: time for a clinical trial

    Alexandrov, A. V., Grotta, J. C., Davis, S. M. & Lassen, N. A., Jul 1996, In : Journal of Nuclear Medicine. 37, 7, p. 1259-62 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published

    Augmented hypoxic cerebral vasodilation in men during 5 days at 3,810 m altitude

    Jensen, J. B., Sperling, B., Severinghaus, J. W. & Lassen, N. A., Apr 1996, In : Journal of Applied Physiology. 80, 4, p. 1214-8 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    Ischemic stroke and incomplete infarction

    Garcia, J., Lassen, N. A., Weiller, C., Sperling, B. & Nakagawara, J., Apr 1996, In : Stroke. 27, 4, p. 761-5 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published
  24. 1995
  25. Published

    Cerebral blood flow quantitation in clinical routine studies: how far have we now come?

    Lassen, N. A., Dec 1995, In : Journal of Nuclear Medicine. 36, 12, p. 2343-4 2 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  26. Published

    Parametric imaging in nuclear medicine

    Lassen, N. A., Iida, H. & Kanno, I., Nov 1995, In : Annals of Nuclear Medicine. 9, 4, p. 167-70 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  27. Published

    Apopleksi med hastigt progredierende symptomer--"stroke in progression". Haemodynamiske og kliniske aspekter

    Garde, E. & Lassen, N. A., 24 Jul 1995, In : Ugeskrift for Laeger. 157, 30, p. 4234-9 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. Published

    Behandling af højt blodtryk hos patienter med akut apopleksi

    Olsen, T. S., Jørgensen, H. S., Garde, E. & Lassen, N. A., 19 Jun 1995, In : Ugeskrift for Laeger. 157, 25, p. 3623-5 3 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. Published

    Blodtryksnedsaettelse kan forvaerre symptomerne ved akut apopleksi

    Garde, E., Jørgensen, H. S., Olsen, T. S. & Lassen, N. A., 19 Jun 1995, In : Ugeskrift for Laeger. 157, 25, p. 3630-1 2 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. Published

    Role of extracellular and intracellular acidosis for hypercapnia-induced inhibition of tension of isolated rat cerebral arteries

    Tian, R., Vogel, P., Lassen, N. A., Mulvany, M. J., Andreasen, F. & Aalkjaer, C., Feb 1995, In : Circulation Research. 76, 2, p. 269-75 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  31. Published

    Benzodiazepine receptor quantification in vivo in humans using [11C]flumazenil and PET: application of the steady-state principle

    Lassen, N. A., Bartenstein, P. A., Lammertsma, A. A., Prevett, M. C., Turton, D. R., Luthra, S. K., Osman, S. A., Bloomfield, P. M., Jones, T. & Patsalos, P. N., Jan 1995, In : Journal of Cerebral Blood Flow and Metabolism. 15, 1, p. 152-65 14 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  32. Published

    Central benzodiazepine receptor imaging and quantitation with single photon emission computerised tomography: SPECT

    Okocha, C. I., Kapczinski, F., Lassen, N. & Lader, M. H., Jan 1995, In : Journal of Psychopharmacology. 9, 4, p. 369-80 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. Published

    Dynamic exercise enhances regional cerebral artery mean flow velocity

    Linkis, P., Jørgensen, L. G., Olesen, H. L., Madsen, P. L., Lassen, N. A. & Secher, N. H., Jan 1995, In : Journal of Applied Physiology. 78, 1, p. 12-6 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  34. 1994
  35. Published

    Hypercapnic vasodilatation in isolated rat basilar arteries is exerted via low pH and does not involve nitric oxide synthase stimulation or cyclic GMP production

    You, J. P., Wang, Q., Zhang, W., Jansen-Olesen, I., Paulson, O. B., Lassen, N. A. & Edvinsson, L., Dec 1994, In : Acta Physiologica. 152, 4, p. 391-7 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  36. Published

    White matter magnetic resonance hyperintensities in dementia of the Alzheimer type: morphological and regional cerebral blood flow correlates

    Waldemar, G., Christiansen, P., Larsson, H. B., Høgh, P., Laursen, H., Lassen, N. A. & Paulson, O. B., Dec 1994, In : Journal of Neurology, Neurosurgery and Psychiatry. 57, 12, p. 1458-65 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    Nitric oxide (NO) is an endogenous anticonvulsant but not a mediator of the increase in cerebral blood flow accompanying bicuculline-induced seizures in rats

    Wang, Q., Theard, M. A., Pelligrino, D. A., Baughman, V. L., Hoffman, W. E., Albrecht, R., Cwik, M., Paulson, O. B. & Lassen, N. A., 26 Sep 1994, In : Brain Research. 658, 1-2, p. 192-8 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  38. Published

    Cognitive profiles and regional cerebral blood flow patterns in dementia of the Alzheimer type

    Waldemar, G., Bruhn, P., Schmidt, E., Kristensen, M., Lassen, N. A. & Paulson, O. B., Sep 1994, In : European journal of neurology : the official journal of the European Federation of Neurological Societies. 1, 1, p. 81-9 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  39. Published

    Interictal "patchy" regional cerebral blood flow patterns in migraine patients. A single photon emission computerized tomographic study

    Friberg, L., Olesen, J., Iversen, H., Nicolic, I., Sperling, B., Lassen, N. A., Olsen, T. S. & Tfelt-Hansen, P., Sep 1994, In : European journal of neurology : the official journal of the European Federation of Neurological Societies. 1, 1, p. 35-43 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  40. Published

    Kan man afbilde en tanke?

    Lassen, N. A., 4 Jul 1994, In : Ugeskrift for Laeger. 156, 27, p. 4004-5 2 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  41. Published

    Cerebral oxygen extraction, oxygen consumption, and regional cerebral blood flow during the aura phase of migraine

    Friberg, L., Olesen, J., Lassen, N. A., Olsen, T. S. & Karle, A., May 1994, In : Stroke. 25, 5, p. 974-9 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  42. Published

    Comparison of the effects of NG-nitro-L-arginine and indomethacin on the hypercapnic cerebral blood flow increase in rats

    Wang, Q., Pelligrino, D. A., Paulson, O. B. & Lassen, N. A., 4 Apr 1994, In : Brain Research. 641, 2, p. 257-64 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  43. Published

    Heterogeneity of neocortical cerebral blood flow deficits in dementia of the Alzheimer type: a [99mTc]-d,l-HMPAO SPECT study

    Waldemar, G., Bruhn, P., Kristensen, M., Johnsen, A., Paulson, O. B. & Lassen, N. A., Mar 1994, In : Journal of Neurology, Neurosurgery and Psychiatry. 57, 3, p. 285-95 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  44. Published

    Imaging brain infarcts by single-photon emission tomography with new tracers

    Lassen, N. A., Mar 1994, In : European Journal of Nuclear Medicine and Molecular Imaging. 21, 3, p. 189-90 2 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  45. Published

    Nitric oxide synthase inhibition and cerebrovascular regulation

    Iadecola, C., Pelligrino, D. A., Moskowitz, M. A. & Lassen, N. A., Mar 1994, In : Journal of Cerebral Blood Flow and Metabolism. 14, 2, p. 175-92 18 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  46. Published

    99mTc-bicisate (neurolite) SPECT brain imaging and cognitive impairment in dementia of the Alzheimer type: a blinded read of image sets from a multicenter SPECT trial

    Waldemar, G., Walovitch, R. C., Andersen, A. R., Hasselbalch, S. G., Bigelow, R., Joseph, J. L., Paulson, O. B. & Lassen, N. A., Jan 1994, In : Journal of Cerebral Blood Flow and Metabolism. 14 Suppl 1, p. S99-105

    Research output: Contribution to journalJournal articleResearchpeer-review

  47. Published
  48. Published

    Characterization of 99mTc-bicisate as an agent for the measurement of cerebral blood flow with SPECT

    Greenberg, J. H. & Lassen, N. A., Jan 1994, In : Journal of Cerebral Blood Flow and Metabolism. 14 Suppl 1, p. S1-3

    Research output: Contribution to journalJournal articleResearchpeer-review

  49. Published

    Use of 99mTc-bicisate in activation studies by split-dose technique

    Holm, S., Madsen, P. L., Sperling, B. & Lassen, N. A., Jan 1994, In : Journal of Cerebral Blood Flow and Metabolism. 14 Suppl 1, p. S115-20

    Research output: Contribution to journalJournal articleResearchpeer-review

  50. Published

    Toe blood pressure compared to angiographical findings in distal occlusive arterial disease of the legs

    Holstein, P., Christensen, S. C. & Lassen, N. A., 1994, In : Int J Clin Angiology. p. 186-93 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  51. 1993
  52. Published

    Average blood flow and oxygen uptake in the human brain during resting wakefulness: a critical appraisal of the Kety-Schmidt technique

    Madsen, P. L., Holm, S., Herning, M. & Lassen, N. A., Jul 1993, In : Journal of Cerebral Blood Flow and Metabolism. 13, 4, p. 646-55 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  53. Published

    Indomethacin abolishes cerebral blood flow increase in response to acetazolamide-induced extracellular acidosis: a mechanism for its effect on hypercapnia?

    Wang, Q., Paulson, O. B. & Lassen, N. A., Jul 1993, In : Journal of Cerebral Blood Flow and Metabolism. 13, 4, p. 724-7 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  54. Published

    Reduced contralateral hemispheric flow measured by SPECT in cerebellar lesions: crossed cerebral diaschisis

    Sönmezoğlu, K., Sperling, B., Henriksen, T., Tfelt-Hansen, P. & Lassen, N. A., Apr 1993, In : Acta Neurologica Scandinavica. 87, 4, p. 275-80 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  55. Published

    Cerebral blood flow in patients with dementia of Alzheimer's type

    Postiglione, A., Lassen, N. A. & Holman, B. L., Feb 1993, In : Aging (Milan, Italy). 5, 1, p. 19-26 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  56. Published

    Hyperfixation of HMPAO in subacute ischemic stroke leading to spuriously high estimates of cerebral blood flow by SPECT

    Sperling, B. & Lassen, N. A., Feb 1993, In : Stroke. 24, 2, p. 193-4 2 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  57. Published

    Ischaemia-induced (symptomatic) migraine attacks may be more frequent than migraine-induced ischaemic insults

    Olesen, J., Friberg, L., Olsen, T. S., Andersen, A. R., Lassen, N. A., Hansen, P. E. & Karle, A., Feb 1993, In : Brain. 116 ( Pt 1), p. 187-202 16 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  58. Published

    Nitric oxide does not act as a mediator coupling cerebral blood flow to neural activity following somatosensory stimuli in rats

    Wang, Q., Kjaer, T., Jørgensen, M. B., Paulson, O. B., Lassen, N. A., Diemer, N. H. & Lou, H. C., Feb 1993, In : Neurological Research. 15, 1, p. 33-6 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

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