Norwegian version
Safora Johansen

Safora Johansen


Safora Johansen completed her doctorate in radiation oncology and late side effects in breast cancer patients in 2010 at the University of Oslo. As a post doctorate, she continued her research in the same area at the institute for cancer research, Oslo University hospital, Radium Hospital. She has participated in implementation of new and advanced radiotherapy techniques, and has studied the effect of these advanced techniques on late side effects development in cancer patients receiving radiotherapy as a part of their treatment (Funded by the Norwegian Cancer Society). Another research area for Safora Johansen has been about estimating the risk for radiation induced secondary cancer in cancer patients because of radiotherapy by employing bio mathematical models. She is now working as an associate professor at the Oslo Metropolitan University and a senior researcher at the Oslo University hospital.
Recent interest includes studying palliative radiotherapy in patients with brain metastases, user involvement to identify cancer treatment uncertainties, the impact of using different exposure values and contrast medium administration on image quality and dose in diagnostic.

Fields of study

Subject areas

Recidiv   Late side effects   Internet support program

Scientific publications

Johansen, Safora (2023). Strategies for calculating contrast media dose for chest CT. European Radiology Experimental. Vol. 7.

Johansen, Safora (2023). Clinical and Translational Radiation Oncology 42 (2023) 100654 Available online 22 June 2023 2405-6308/© 2023 Oslo University Hospital. Published by Elsevier B.V. on behalf of European Society for Radiotherapy and Oncology. This is an open access article under the CC BY license ( of hyperfractionated re-irradiation on quality of life in patients with recurrent or second primary head and neck cancer, a prospective single institutional study. Clinical and Translational Radiation Oncology.

Midthun, Petter; Kirkhus, Eva; Østerås, Bjørn Helge; Høiness, Per Reidar; England, Andrew; Johansen, Safora (2023). Metal artifact reduction on musculoskeletal CT: a phantom and clinical study. 13 p. European Radiology Experimental. Vol. 7.

Amdal, Cecilie Delphin; Moan, Jon Magne Kaarstein; Dale, Einar; Falk, Ragnhild Sørum; Johansen, Safora; Bjordal, Kristin (2023). Impact of hyperfractionated re-irradiation on quality of life in patients with recurrent or second primary head and neck cancer, a prospective single institutional study. Clinical and Translational Radiation Oncology. Vol. 42.

Tonkopi, Elena; Wikan, Eline Jahre; Hovland, Tor Olav; Høgset, Sivert; Kofod, Thomas Alexander; Sefenu, Selasi K.; Hughes-Ryan, Emily; d´Entremont-O´Connell, Dakota; Gunn, Catherine; Holter, Tanja; Johansen, Safora (2022). A survey of local diagnostic reference levels for the head, thorax, abdomen and pelvis computed tomography in Norway and Canada. 11 p. Acta Radiologica Open. Vol. 11.

Morassaei, Sara; Di Prospero, Lisa; Ringdalen, Elisabeth; Olsen, Sunniva S.; Korsell, Agnethe; Erler, Darby; Ying, Carmen; Ho Choi, Sang; Bolderston, Amanda; Middleton, Jacqueline; Johansen, Safora (2021). A survey to explore the psychological impact of the COVID-19 pandemic on radiation therapists in Norway and Canada: A tale of two countries. Journal of Medical Radiation Sciences (JMRS). Vol. 68.

Henning, Mette Karen; Aaløkken, Trond M; Johansen, Safora (2021). Contrast medium protocols in routine chest CT:a survey study. Acta Radiologica. Vol. 63.

Cheuk (Tweety), Ng; Johansen, Safora; Morassaei, Sara; Erler, Darby; Gunn, Catherine; D'Alimonte, Laura; McLaney, Elizabeth; Di Prospero, Lisa (2021). Translating interprofessional collaboration competencies to an international research team. Journal of Medical Imaging and Radiation Sciences.

Gullhaug, Anna; Hjermstad, Marianne Jensen; Yri, Olav Erich; Svestad, Jørund Graadal; Aass, Nina Kathrine; Johansen, Safora (2021). Use of radiotherapy in breast cancer patients with brain metastases: a retrospective 11-year single center study. Journal of Medical Imaging and Radiation Sciences. Vol. 52.

Karlsson, Astrid Telhaug; Hjermstad, Marianne Jensen; Omdahl, Therese; Aass, Nina Kathrine; Skovlund, Eva; Hellebust, Taran Paulsen; Johansen, Safora; Kaasa, Stein; Yri, Olav Erich (2021). Overall survival after initial radiotherapy for brain metastases; a population based study of 2140 patients with non-small cell lung cancer. Acta Oncologica. Vol. 60.

These publications are obtained from Cristin. The list may be incomplete