Andreas Kjær

Andreas Kjær

Professor

ORCID: 0000-0002-2706-5547

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  1. Published

    Simultaneous hyperpolarized 13C-pyruvate MRI and 18F-FDG-PET in cancer (hyperPET): feasibility of a new imaging concept using a clinical PET/MRI scanner

    Borgwardt, H. G., Hansen, Adam Espe, Henriksen, S. T., Johannesen, Helle Hjorth, Ardenkjær-Larsen, J. H., Vignaud, A., Hansen, A. E., Børresen, Betina, Klausen, Thomas Levin, Wittekind, A. N., Gillings, N., Kristensen, Annemarie T., Clemmensen, Andreas Høeg, Højgaard, Liselotte & Kjær, Andreas, Jan 2015, In: American Journal of Nuclear Medicine and Molecular Imaging. 5, 1, p. 38-45 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  2. Published

    Simultaneous hyperpolarized 13C-Pyruvate MRI and 18F-FDG PET (HyperPET) in 10 dogs with cancer

    Borgwardt, H. G., Hansen, Adam Espe, Larsen, M. M. E., Rahbek, S., Henriksen, S. T., Johannesen, Helle Hjorth, Ardenkjær-Larsen, J. H., Kristensen, Annemarie T., Højgaard, Liselotte & Kjær, Andreas, Nov 2015, In: Journal of Nuclear Medicine. 56, 11, p. 1786-92 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. Published

    Simultaneous characterization of tumor cellularity and the Warburg effect with PET, MRI and hyperpolarized 13C-MRSI

    Hundshammer, C., Braeuer, M., Müller, C. A., Hansen, A. E., Schillmaier, M., Düwel, S., Feuerecker, B., Glaser, S. J., Haase, A., Weichert, W., Steiger, K., Cabello, J., Schilling, F., Hövener, J., Kjær, Andreas, Nekolla, S. G. & Schwaiger, M., 2018, In: Theranostics. 8, 17, p. 4765-4780

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    Simultaneous PET/MRI with (13)C magnetic resonance spectroscopic imaging (hyperPET): phantom-based evaluation of PET quantification

    Hansen, A. E., Andersen, F. L., Henriksen, S. T., Vignaud, A., Ardenkjaer-Larsen, J. H., Højgaard, Liselotte, Kjær, Andreas & Klausen, T. L., 2016, In: EJNMMI Physics. 3, 7, 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    Silent Ischemic Heart Disease and Pericardial Fat Volume in HIV-Infected Patients: A Case-Control Myocardial Perfusion Scintigraphy Study

    Kristoffersen, U. S., Lebech, Anne-Mette, Wiinberg, N., Petersen, C. L., Hasbak, P., Gutte, H., Jensen, G. B., Hag, Anne Mette Fisker, Ripa, Rasmus Sejersten & Kjær, Andreas, 14 Aug 2013, In: PLOS ONE. 8, 8, p. 1- 9 p., e72066.

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    Short-term oral treatment with the angiotensin II receptor antagonist losartan does not improve coronary vasomotor function in asymptomatic type 2 diabetes patients

    Kjær, Andreas, Kristoffersen, U. S., Tarnow, L., Parving, H. & Hesse, B., 2009, In: Diabetes Research and Clinical Practice. 84, 1, p. 34-8 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    Sex differences and caffeine impact in adenosine-induced hyperemia

    Lassen, M. L., Byrne, C., Sheykhzade, Majid, Wissenberg, M., Hurry, P. K., Schmedes, A. V., Kjær, Andreas & Hasbak, P., 2022, In: Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 63, 3, p. 431-437 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Serotonin stimulates hypothalamic gene expression and local release of neurohypophysial peptides

    Jørgensen, H., Kjær, Andreas, Knigge, Ulrich, Møller, M. & Warberg, J., 2003, In: Journal of Neuroendocrinology. 15, p. 564-571

    Research output: Contribution to journal › Journal article › Research › peer-review

  9. Published

    Serotonin receptors involved in vasopressin and oxytocin secretion

    Jørgensen, H., Riis, M., Knigge, Ulrich, Kjær, Andreas & Warberg, J., 1 Mar 2003, In: Journal of Neuroendocrinology. 15, 3, p. 242-249 8 p.

    Research output: Contribution to journal › Review › Research › peer-review

  10. Published

    Serotonergic stimulation of Corticotropin-Releasing Hormone and Pro-Opiomelanocortin gene expression

    Jørgensen, H., Knigge, Ulrich, Kjær, Andreas, Møller, M. & Warberg, J., 2002, In: Journal of Neuroendocrinology. 788-795, p. 14

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. Published

    Serotonergic involvement in stress-induced vasopressin and oxytocin secretion.

    Jørgensen, H., Knigge, Ulrich, Kjær, Andreas & Warberg, J., 2002, In: European Journal of Endocrinology. 147, 6, p. 815-24 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. Published

    Serotonergic involvement in stress-induced ACTH release

    Jørgensen, H., Knigge, Ulrich, Kjær, Andreas, Vadsholt, T. & Warberg, J., 1998, In: Brain Research. 811, p. 10-20

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    Serial in vivo imaging of the porcine heart after percutaneous, intramyocardially injected 111In-labeled human mesenchymal stromal cells

    Lyngbaek, S., Ripa, R. S., Haack-Sørensen, M., Cortsen, A., Kragh, L., Andersen, C. B., Jørgensen, E., Kjær, Andreas, Kastrup, J. & Hesse, B., 1 Mar 2010, In: International Journal of Cardiovascular Imaging. 26, 3, p. 273-84 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Published

    Serial in vivo imaging of the porcine heart after percutaneous, intramyocardially injected (111)In-labeled human mesenchymal stromal cells

    Lyngbæk, S., Ripa, Rasmus Sejersten, Haack-Sørensen, M., Cortsen, A., Kragh, L., Andersen, C. B., Jørgensen, E., Kjær, Andreas, Kastrup, J. & Hesse, B., 2009, In: International Journal of Cardiovascular Imaging.

    Research output: Contribution to journal › Journal article › Research › peer-review

  15. Published

    Semi-quantitative myocardial perfusion measured by computed tomography in patients with refractory angina: a head-to-head comparison with quantitative rubidium-82 positron emission tomography as reference

    Qayyum, A. A., Kühl, J. T., Kjær, Andreas, Hasbak, P., Kofoed, Klaus Fuglsang & Kastrup, J., Sep 2017, In: Clinical Physiology and Functional Imaging. 37, 5, p. 481-488 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    Semi-automatic tumor delineation for evaluation of 64Cu-DOTATATE PET/CT in patients with neuroendocrine neoplasms: prognostication based on lowest lesion uptake and total tumor volume

    Carlsen, Esben Andreas, Johnbeck, C. B., Loft, Mathias Hougaard, Pfeifer, A., Oturai, P., Langer, Seppo W., Knigge, Ulrich, Ladefoged, C. N. & Kjær, Andreas, 2021, In: The Journal of Nuclear Medicine. 62, 11, p. 1564-1570

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    Semaglutide reduces vascular inflammation investigated by PET in a rabbit model of advanced atherosclerosis

    Jensen, Jacob Kildevang, Binderup, Tina, Poulsen, Constance Eline Grandjean, Bentsen, Simon, Ripa, Rasmus Sejersten & Kjær, Andreas, 2022, In: Atherosclerosis. 352, p. 88-95

    Research output: Contribution to journal › Journal article › Research › peer-review

  18. Published

    Self-reported fatigue common among optimally treated HIV patients: no correlation with cerebral FDG-PET scanning abnormalities

    Andersen, A. B., Law, Ian, Ostrowski, S. R., Lebech, A. M., Høyer-Hansen, G., Højgaard, Liselotte, Gerstoft, Jan, Ullum, H. & Kjær, Andreas, 2006, In: Neuroimmunomodulation. 13, 2, p. 69-75 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. Published

    Selective inhibition of magnocellular vasopressin neurons by hypoosmolality: Effect on histamine- and stress-induced secretion of adrenocorticotropin and prolactin

    Kjær, Andreas, Knigge, Ulrich, Jørgensen, H. & Warberg, J., 1998, In: Neuroendocrinology. 67, p. 330-335

    Research output: Contribution to journal › Journal article › Research › peer-review

  20. Published

    Selection of suitable reference genes for normalization of genes of interest in canine soft tissue sarcomas using quantitative real-time polymerase chain reaction

    Zornhagen, Kamilla Westarp, Kristensen, Annemarie T., Hansen, A. E., Oxbøl, J. & Kjær, Andreas, 2015, In: Veterinary and Comparative Oncology. 13, 4, p. 485–493 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    Secretory phospholipase A2 responsive liposomes exhibit a potent anti-neoplastic effect in vitro, but induce unforeseen severe toxicity in vivo

    Østrem, R. G., Parhamifar, L., Pourhassan, H., Clergeaud Veiga, G., Nielsen, O. L., Kjær, Andreas, Hansen, A. E. & Andresen, T. L., 2017, In: Journal of Controlled Release. 262, p. 212-221

    Research output: Contribution to journal › Journal article › Research › peer-review

  22. Published

    Scintigraphy of the heart using noradrenaline has a prognostic value when visualising heart failure,Hjertescintigrafi med noradrenalinanalog har prognostisk værdi ved hjertesvigt

    Hasbak, P. & Kjær, Andreas, 2014, In: Ugeskrift for Laeger.

    Research output: Contribution to journal › Journal article › Research › peer-review

  23. Published

    Scintigrafi kombineret med CT. Dansk Selskab for Klinisk Fysiologi og Nuklearmedicin.

    Kjær, Andreas, Hesse, B., Eigtved, A. & Højgaard, Liselotte, 2002, In: Ugeskrift for læger. 164, 12, p. 1661

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Safety, Dosimetry, and Tumor Detection Ability of 68Ga-NOTA-AE105: First-in-Human Study of a Novel Radioligand for uPAR PET Imaging

    Skovgaard Lund, D., Persson, M., Brandt-Larsen, M., Christensen, C., Madsen, J., Klausen, T. L., Holm, S., Andersen, F. L., Loft, A., Berthelsen, A. K., Pappot, H., Brasso, K., Kroman, Niels Thorndahl, Højgaard, Liselotte & Kjær, Andreas, 2017, In: Journal of Nuclear Medicine. 58, 3, p. 379-386

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. Published

    SPECT kombineret med CT-angiografi giver bedre diagnostik af lungeemboli--sekundaerpublikation

    Borgwardt, H. G., Mortensen, Jann, Jensen, C. V., Johnbeck, C. B., Von Der Recke, P., Petersen, C. L., Kristoffersen, U. S. & Kjær, Andreas, 4 Jan 2010, In: Ugeskrift for Laeger. 172, 1, p. 41-3 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  26. Published

    SNMMI Procedure Standard/EANM Practice Guideline for SSTR PET: Imaging Neuroendocrine Tumors

    Hope, T. A., Allen-Auerbach, M., Bodei, L., Calais, J., Dahlbom, M., Dunnwald, L. K., Graham, M. M., Jacene, H. A., Heath, C. L., Mittra, E. S., Wright, C. L., Fendler, W. P., Herrmann, K., Taïeb, D. & Kjær, Andreas, 2023, In: Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 64, 2, p. 204-210

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. Published

    Rubidium-82 uptake in metastases from neuroendocrine tumors: No flow response to adenosine

    Hasbak, P., Enevoldsen, L. H., Fosbøl, M. Ø., Skovgaard, D., Knigge, Ulrich & Kjær, Andreas, Aug 2016, In: Journal of Nuclear Cardiology. 23, 4, p. 840-2 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  28. Published

    Rubidium-82 positron emission tomography for detection of acute doxorubicin-induced cardiac effects in lymphoma patients

    Laursen, A. H., Elming, M. B., Ripa, Rasmus Sejersten, Hasbak, P., Kjær, Andreas, Køber, Lars Valeur, Marott, J. L., Thune, J. J. & Hutchings, M., 2020, In: Journal of Nuclear Cardiology. 27, 5, p. 1698-1707

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    Rubidium-82 PET imaging is feasible in a rat myocardial infarction model

    Ghotbi, A. A., Clemmensen, Andreas Høeg, Kyhl, K., Follin, Bjarke, Hasbak, P., Engstrøm, Thomas, Ripa, Rasmus Sejersten & Kjær, Andreas, 2019, In: Journal of Nuclear Cardiology. 26, p. 798–809

    Research output: Contribution to journal › Journal article › Research › peer-review

  30. Published

    Role of hypothalamic histaminergic neurons in mediation of ACTH and beta-endorphin responses to LPS endotoxin in vivo

    Knigge, U., Kjær, Andreas, Jørgensen, H., Garbarg, M., Ross, C., Rouleau, A. & Warberg, J., 1994, In: Neuroendocrinology. 60, p. 243-251

    Research output: Contribution to journal › Journal article › Research › peer-review

  31. Published

    Right-sided cardiac function in healthy volunteers measured by first-pass radionuclide ventriculography and gated blood-pool SPECT: comparison with cine MRI.

    Kjær, Andreas, Lebech, A., Hesse, B. & Petersen, C. L., 2005, In: Clinical Physiology and Functional Imaging. 25, 6, p. 344-9 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. Published

    Right ventricular volume and mass determined by cine magnetic resonance imaging in HIV patients with possible right ventricular dysfunction.

    Kjær, Andreas, Lebech, A., Gerstoft, Jan, Hesse, B. & Petersen, C. L., 2006, In: Angiology. 57, 3, p. 341-6 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  33. Published

    Right and left ventricular cardiac function in a developed world population with human immunodeficiency virus studied with radionuclide ventriculography.

    Lebech, A., Gerstoft, Jan, Hesse, B., Petersen, C. L. & Kjær, Andreas, 2004, In: American Heart Journal. 147, 3, p. 482-8 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  34. Published

    Right and left cardiac function in HIV-infected patients investigated using radionuclide ventriculography and brain natriuretic peptide: a 5-year follow-up study

    Kristoffersen, U. S., Lebech, A. M., Gerstoft, Jan, Hesse, B., Petersen, C. L., Gutte, H. & Kjær, Andreas, 2008, In: HIV Medicine. 9, 3, p. 180-186 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  35. Published

    Revisiting the use of sPLA2-sensitive liposomes in cancer therapy

    Pourhassan, H., Clergeaud Veiga, G., Hansen, A. E., Østrem, R. G., Fliedner, F. P., Melander, F., Nielsen, O. L., O´Sullivan, C. K., Kjær, Andreas & Andresen, T. L., 2017, In: Journal of Controlled Release. 261, p. 163-173 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  36. Published

    Review: Comparison of PET rubidium-82 with conventional SPECT myocardial perfusion imaging

    Ghotbi, A. A., Kjær, Andreas & Hasbak, P., May 2014, In: Clinical Physiology and Functional Imaging. 34, 3, p. 163-170 8 p.

    Research output: Contribution to journal › Review › Research › peer-review

  37. Published

    Reversible renal impairment induced by treatment with the angiotensin II receptor antagonist candesartan in a patient with bilateral renal artery stenosis

    Johansen, T. L. & Kjær, Andreas, 17 May 2001, In: BMC Nephrology. 2, p. 1-5 5 p., 1.

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. Published

    Retention and Functional Effect of Adipose-Derived Stromal Cells Administered in Alginate Hydrogel in a Rat Model of Acute Myocardial Infarction

    Follin, B., Ghotbi, A. A., Clemmensen, Andreas Høeg, Bentsen, Simon, Juhl, M., Søndergaard, R. H., Lund, L. D., Haack-Sørensen, M., Hasbak, P., Cohen, S., Ripa, Rasmus Sejersten, Kastrup, J., Ekblond, A. & Kjær, Andreas, 2018, In: Stem Cells International. 2018, 13 p., 7821461.

    Research output: Contribution to journal › Journal article › Research › peer-review

  39. Published

    Results of 252 Patients with Bronchopulmonary Neuroendocrine Tumors Treated at the Copenhagen NET Centre of Excellence

    Groendahl, Knigge, Ulrich, Langer, Seppo W., Kjær, Andreas, Federspiel, B., Petersen, René Horsleben, Binderup, Tina & Nielsen, K., 2018, p. 289-289. 1 p.

    Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  40. Published

    Responses to Medical Treatment in 192 Patients with Pancreatic Neuroendocrine Neoplasms Referred to the Copenhagen Neuroendocrine Tumour Centre in 2000–2020

    Petersen, S. S., Møller, S., Slott, C., Krogh, Jesper, Hansen, C. P., Kjær, Andreas, Holmager, P., Oturai, P., Garbyal, Rajendra Singh, Langer, Seppo W., Knigge, Ulrich & Andreassen, Mikkel, 2024, In: Cancers. 16, 6, 16 p., 1190.

    Research output: Contribution to journal › Journal article › Research › peer-review

  41. Published

    Responses of anterior pituitary hormones and hypothalamic histamine to blockade of histamine synthesis and to selective activation or inhibition of presynaptic histaminergic H*U3-receptors

    Søe-Jensen, P., Knigge, U., Garbarg, M., Kjær, Andreas, Bach, F. W., Rouleau, A., Schwartz, J. & Warberg, J., 1993, In: Neuroendocrinology. 57, p. 532-540

    Research output: Contribution to journal › Journal article › Research › peer-review

  42. Published

    Response to the commentary on our work: a new uPAR-targeting fluorescent probe for optical guided intracranial surgery in resection of a meningioma—a case report

    Skjøth, Jane, Azam, Aleena, Larsen, C. C., Stræde, Karina & Kjær, Andreas, 2023, In: Acta Neurochirurgica. 165, 245.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  43. Published

    Respiratory gating in cardiac PET: Effects of adenosine and dipyridamole

    Lassen, M. L., Rasmussen, T., Christensen, T. E., Kjær, Andreas & Hasbak, P., Dec 2017, In: Journal of Nuclear Cardiology. 24, 6, p. 1941–1949

    Research output: Contribution to journal › Journal article › Research › peer-review

  44. Published

    Reproducibility of MR-based Attenuation Maps in PET/MRI and the Impact on Response Evaluation in Lung Cancer

    Olin, A., Ladefoged, C. N., Langer, N. H., Keller, S. H., Lofgren, J., Hansen, A. E., Kjær, Andreas, Langer, Seppo W., Fischer, Barbara Malene Bjerregaard & Andersen, F. L., 2016, In: European Journal of Nuclear Medicine and Molecular Imaging. 43, p. S444-S444 1 p.

    Research output: Contribution to journal › Conference abstract in journal › Research

  45. Published

    Reproducibility of MR-Based Attenuation Maps in PET/MRI and the Impact on PET Quantification in Lung Cancer

    Olin, A., Ladefoged, C. N., Langer, N. H., Keller, S. H., Löfgren, J., Hansen, A. E., Kjær, Andreas, Langer, Seppo W., Fischer, Barbara Malene Bjerregaard & Andersen, F. L., 2018, In: The Journal of Nuclear Medicine. 59, 6, p. 999-1004

    Research output: Contribution to journal › Journal article › Research › peer-review

  46. Published

    Reproducibility of LVEF, LV volumes, and LV mass between Rubidium-82 PET/CT scans in young healthy volunteers using two commercially available software packages

    Byrne, C., Kjær, Andreas, Forman, Julie Lyng & Hasbak, P., 2020, In: Journal of Nuclear Cardiology. 27, p. 1237–1245 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  47. Published

    Reproducibility of (18)F-FDG PET uptake measurements in head and neck squamous cell carcinoma on both PET/CT and PET/MR

    Rasmussen, J. H., Fischer, Barbara Malene Bjerregaard, Aznar, M. C., Hansen, Adam Espe, Vogelius, Ivan R. , Löfgren, J., Andersen, Flemming Littrup, Loft, A., Kjær, Andreas, Højgaard, Liselotte & Specht, Lena, Apr 2015, In: British Journal of Radiology. 88, 1048, p. 20140655

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. Published

    Repeatability of FDG PET/CT metrics assessed in free breathing and deep inspiration breath hold in lung cancer patients

    Nygård, L., Aznar, M. C., Fischer, Barbara Malene Bjerregaard, Persson, Gitte F., Christensen, C. B., Andersen, Flemming Littrup, Josipovic, Mirjana, Langer, Seppo W., Kjær, Andreas, Vogelius, Ivan R. & Bentzen, S. M., 2018, In: American Journal of Nuclear Medicine and Molecular Imaging. 8, 2, p. 127-136

    Research output: Contribution to journal › Journal article › Research › peer-review

  49. Published

    Renal 123I-MIBG uptake before and after live-donor kidney transplantation

    Rasmussen, T., Nijs, R. D., Olsen, L. K., Kamper, A. L., Bang, L. E., Frimodt-Møller, M., Kelbæk, H., Sørensen, Søren Schwartz, Kjær, Andreas, Feldt-Rasmussen, Bo, Svendsen, Jesper Hastrup & Hasbak, P., 2020, In: Diagnostics. 10, 10, 802.

    Research output: Contribution to journal › Journal article › Research › peer-review

  50. Published

    Remote-loading of liposomes with manganese-52 and in vivo evaluation of the stabilities of 52Mn-DOTA and 64Cu-DOTA using radiolabelled liposomes and PET imaging

    Jensen, A. I., Severin, G. W., Hansen, A. E., Fliedner, F. P., Eliasen, R., Parhamifar, L., Kjær, Andreas, Andresen, T. L. & Henriksen, J. R., 2018, In: Journal of Controlled Release. 269, p. 100-109

    Research output: Contribution to journal › Journal article › Research › peer-review

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