Safora Johansen
Position: Senior researcher, PhD
Phone: +47 22781083/ 23075444/ 928 47 480


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, Radiumhospitalet. 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. Another research area for Safora Johansen has been about estimating the risk for radiation induced secondary cancer in cancer patients as a result of radiotherapy by employing bio mathematical models. She is now working as a senior researcher at the Oslo University hospital.

She has censorship cooperation with university of Bergen at the faculty of community medicine, college of Bergen and college of Oslo and Akershus at the health department.

Recent interest includes testing the effect of internet support programs for cancer patients and their caregiver.

Projects and grants

  1. Dose distribution in the heart and cardiac chambers following 4-field radiation therapy of breast cancer- a retrospective study
  2. Arm and shoulder morbidity following radiotherapy of breast cancer
  3. Improving symptom management for cancer patients and their caregivers through internet support- A randomized clinical trial

Personal webpage/linkedin


Publications 2017

Johansen S, Cvancarova M, Ruland C (2017)
The Effect of Cancer Patients' and Their Family Caregivers' Physical and Emotional Symptoms on Caregiver Burden
Cancer Nurs (in press)
PubMed 28426539

Johansen S, Norman MH, Dale E, Amdal CD, Furre T, Malinen E, Evensen JF (2017)
Patterns of local-regional recurrence after conformal and intensity-modulated radiotherapy for head and neck cancer
Radiat Oncol, 12 (1), 87
PubMed 28545588

Publications 2016

Sygna K, Johansen S, Ruland CM (2016)
Erratum to: 'Recruitment challenges in clinical research including cancer patients and their caregivers. A randomized controlled trial study and lessons learned'
Trials, 17 (1), 133
PubMed 26965306

Publications 2015

Sygna K, Johansen S, Ruland CM (2015)
Recruitment challenges in clinical research including cancer patients and their caregivers. A randomized controlled trial study and lessons learned
Trials, 16, 428
PubMed 26407547

Tjessem KH, Bosse G, Fosså K, Reinertsen KV, Fosså SD, Johansen S, Fosså A (2015)
Coronary calcium score in 12-year breast cancer survivors after adjuvant radiotherapy with low to moderate heart exposure - Relationship to cardiac radiation dose and cardiovascular risk factors
Radiother Oncol, 114 (3), 328-34
PubMed 25600105

Publications 2014

Johansen S, Fosså K, Nesvold IL, Malinen E, Fosså SD (2014)
Arm and shoulder morbidity following surgery and radiotherapy for breast cancer
Acta Oncol, 53 (4), 521-9
PubMed 24495044

Publications 2013

Johansen S, Tjessem KH, Fosså K, Bosse G, Danielsen T, Malinen E, Fosså SD (2013)
Dose Distribution in the Heart and Cardiac Chambers Following 4-field Radiation Therapy of Breast Cancer: a Retrospective Study
Breast Cancer (Auckl), 7, 41-9
PubMed 23589693

Tjessem KH, Johansen S, Malinen E, Reinertsen KV, Danielsen T, Fosså SD, Fosså A (2013)
Long-term cardiac mortality after hypofractionated radiation therapy in breast cancer
Int J Radiat Oncol Biol Phys, 87 (2), 337-43
PubMed 23886416

Publications 2011

Johansen S, Reinertsen KV, Knutstad K, Olsen DR, Fosså SD (2011)
Dose distribution in the thyroid gland following radiation therapy of breast cancer--a retrospective study
Radiat Oncol, 6, 68
PubMed 21651829

Johansen S, Vikström J, Hjelstuen MH, Mjaaland I, Dybvik KI, Olsen DR (2011)
Dose evaluation and risk estimation for secondary cancer in contralateral breast and a study of correlation between thorax shape and dose to organs at risk following tangentially breast irradiation during deep inspiration breath-hold and free breathing
Acta Oncol, 50 (4), 563-8
PubMed 21370938

Publications 2010

Weber DC, Johanson S, Peguret N, Cozzi L, Olsen DR (2010)
Predicted risk of radiation-induced cancers after involved field and involved node radiotherapy with or without intensity modulation for early-stage hodgkin lymphoma in female patients
Int J Radiat Oncol Biol Phys, 81 (2), 490-7
PubMed 20800383

Publications 2009

Johansen S, Cozzi L, Olsen DR (2009)
A planning comparison of dose patterns in organs at risk and predicted risk for radiation induced malignancy in the contralateral breast following radiation therapy of primary breast using conventional, IMRT and volumetric modulated arc treatment techniques
Acta Oncol, 48 (4), 495-503
PubMed 19169915

Publications 2008

Johansen S, Danielsen T, Olsen DR (2008)
Estimated risk for secondary cancer in the contra-lateral breast following radiation therapy of breast cancer
Acta Oncol, 47 (3), 391-6
PubMed 18348001

Publications 2006

Johansen S, Olsen DR, Danielsen T, Malinen E (2006)
Contralateral breast doses following radiotherapy of the breast and regional lymph nodes: Measurements and treatment planning calculations
Radiother Oncol, 82 (3), 332-6
PubMed 16962677