Ingerid Skjei Knudtsen

Image of Ingerid Skjei Knudtsen
Norwegian version of this page
Phone +47-22857375
Room KV328
Visiting address Kjemibygningen Sem Sælands vei 260371 Oslo
Other affiliations Faculty of Mathematics and Natural Sciences (Student)

Academic Interests

  • Medical imaging - nuclear medicine and PET/CT
  • PhD-project: Positron Emission Tomography for treatment planning and monitoring of lung cancer


FYS1000 Physics - the foundation of natural sciences and medicine (

Higher education and employment history

Medical Physicist, Section for Diagnostic Physics, The Intervention Centre, Oslo University Hospital, 2008-2011 and 2013->.

M.Sc. Department of Physics, University of Oslo, 2008.


Tags: PET/CT, medical physics, medical imaging, biophysics, radiation physics


  • Eide, Hanne Astrid; Knudtsen, Ingerid Skjei; Sandhu, Vandana; Løndalen, Ayca; Halvorsen, Ann Rita; Abravan, Azadeh; Kure, Elin Wenche Hegland; Bogsrud, Trond; Brustugun, Odd Terje; Kyte, Jon A; Malinen, Eirik & Helland, Åslaug (2018). Serum cytokine profiles and metabolic tumor burden in patients with non-small cell lung cancer undergoing palliative thoracic radiation therapy. Advances in Radiation Oncology.  ISSN 2452-1094.  3(2), s 130- 138 . doi: 10.1016/j.adro.2017.12.007
  • Abravan, Azadeh; Eide, Hanne Astrid; Knudtsen, Ingerid Skjei; Løndalen, Ayca; Helland, Åslaug & Malinen, Eirik (2017). Assessment of pulmonary 18F-FDG-PET uptake and cytokine profiles in non-small cell lung cancer patients treated with radiotherapy and erlotinib. Clinical and Translational Radiation Oncology.  ISSN 2405-6308.  4, s 57- 63 . doi: 10.1016/j.ctro.2017.04.002
  • Abravan, Azadeh; Knudtsen, Ingerid Skjei; Eide, Hanne Astrid; Løndalen, Ayca; Helland, Åslaug; van Luijk, Peter & Malinen, Eirik (2017). A new method to assess pulmonary changes using 18F-fluoro-2-deoxyglucose positron emission tomography for lung cancer patients following radiotherapy. Acta Oncologica.  ISSN 0284-186X.  56(11), s 1597- 1603 . doi: 10.1080/0284186X.2017.1349336
  • Knudtsen, Ingerid Skjei; Svestad, Jørund Graadal; Sande, Erlend Peter Skaug; Rekstad, Bernt Louni; Rødal, Jan; van Elmpt, Wouter; Öllers, Michel; Hole, Eli Olaug & Malinen, Eirik (2016). Validation of dose painting of lung tumours using alanine/EPR dosimetry. Physics in Medicine and Biology.  ISSN 0031-9155.  61(6), s 2243- 2254 . doi: 10.1088/0031-9155/61/6/2243
  • Arnesen, Marius Røthe; Knudtsen, Ingerid Skjei; Rekstad, Bernt Louni; Eilertsen, Karsten; Dale, Einar; Bruheim, Kjersti; Helland, Åslaug; Løndalen, Ayca Muftuler; Hellebust, Taran Paulsen & Malinen, Eirik (2015). Dose painting by numbers in a standard treatment planning system using inverted dose prescription maps. Acta Oncologica.  ISSN 0284-186X.  54(9), s 1607- 1613 . doi: 10.3109/0284186X.2015.1061690
  • Knudtsen, Ingerid Skjei; Aalbergsjø, Siv Gundrosen; Hole, Eli Olaug & Sagstuen, Einar (2015). Radiation effects on crystalline l-asparagine, revisited: Radical formation by EMR and periodic DFT after X-irradiation at 275K. Radiation Physics and Chemistry.  ISSN 0969-806X.  106, s 151- 159 . doi: 10.1016/j.radphyschem.2014.07.008

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  • Knudtsen, Ingerid Søberg Skjei; Eide, Hanne Astrid; Løndalen, Ayca; Abravan, Azadeh; Bogsrud, Trond; Sprauten, Mette; Brustugun, Odd Terje; Helland, Åslaug & Malinen, Eirik (2017). 18FDG-PET/CT for assessing short-term therapy response of advanced non-small cell lung cancer patients.
  • Papoutsis, iosif; Arnesen, Marius Røthe; Sande, Erlend P. S.; Sagstuen, Einar; Knudtsen, Ingerid Skjei & Malinen, Eirik (2017). From dose prescription to dose delivery - can dose painting by numbers be accurately delivered?.
  • Abravan, Azadeh; Knudtsen, Ingerid Skjei; Eide, Hanne Astrid; Helland, Åslaug; van Luijk, Peter & Malinen, Eirik (2016). PET based response assessment of lung toxicity - assessment of two approaches for dose response. Radiotherapy and Oncology.  ISSN 0167-8140.  119, s 450- 450
  • Abravan, Azadeh; Knudtsen, Ingerid Skjei; Eide, Hanne; Brustugun, Odd Terje; Helland, Åslaug & Malinen, Eirik (2015). FDG-PET response in the normal lung for lung cancer patients receiving fractionated radiotherapy and erlotinib. Radiotherapy and Oncology.  ISSN 0167-8140.  115, s s634- s634 . doi: 10.1016/S0167-8140(15)41159-4

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Published Oct. 25, 2011 3:59 PM - Last modified Jan. 7, 2014 4:55 PM