Search Results - "Johansen, Safora"

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 by Johansen, Safora, Cozzi, Luca, Olsen, Dag Rune

“…To investigate the impact of using different radiation therapy techniques on contra-lateral breast (CB) dose, and also dose to other involved organs at risk…”
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Long-term Cardiac Mortality After Hypofractionated Radiation Therapy in Breast Cancer by Tjessem, Kristin Holm, MD, Johansen, Safora, PhD, Malinen, Eirik, PhD, Reinertsen, Kristin V., MD, PhD, Danielsen, Turi, PhD, Fosså, Sophie D., MD, PhD, Fosså, Alexander, MD, PhD

“…Purpose To explore very-long-term mortality from ischemic heart disease (IHD) after locoregional radiation therapy of breast cancer (BC) in relation to degree…”
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Strategies for calculating contrast media dose for chest CT by Henning, Mette Karen, Gunn, Catherine, Arenas-Jiménez, Juan, Johansen, Safora

“…Background Total body weight (TBW) is a frequently used contrast media (CM) strategy for dose calculation in enhanced CT, yet it is suboptimal as it lacks…”
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Metal artifact reduction on musculoskeletal CT: a phantom and clinical study by Midthun, Petter, Kirkhus, Eva, Østerås, Bjørn Helge, Høiness, Per Reidar, England, Andrew, Johansen, Safora

“…Background Artifacts caused by metal implants are challenging when undertaking computed tomography (CT). Dedicated algorithms have shown promising results…”
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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 by Amdal, Cecilie Delphin, Moan, Jon Magne, Dale, Einar, Falk, Ragnhild Sørum, Johansen, Safora, Bjordal, Kristin

“…•QoL maintained after re-irradiation in patients with relapsed head and neck cancer.•Hyperfractionated re-irradiation was feasible for head and neck cancer…”
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Impact of iodine concentration and scan parameters on image quality, contrast enhancement and radiation dose in thoracic CT by Solbak, Marian S., Henning, Mette K., England, Andrew, Martinsen, Anne C., Aaløkken, Trond M., Johansen, Safora

“…Background We investigated the impact of varying contrast medium (CM) densities and x-ray tube potentials on contrast enhancement (CE), image quality and…”
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Patterns of local-regional recurrence after conformal and intensity-modulated radiotherapy for head and neck cancer by Johansen, Safora, Norman, Mathilde H, Dale, Einar, Amdal, Cecilie D, Furre, Torbjørn, Malinen, Eirik, Evensen, Jan F

“…To evaluate the patterns of loco-regional recurrences in head and neck cancer patients METHODS: Twenty-six out of 112 patients treated with primary or…”
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A survey to explore the psychological impact of the COVID‐19 pandemic on radiation therapists in Norway and Canada: A tale of two countries by 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

“…Introduction Several studies have demonstrated the psychological impact of the COVID‐19 pandemic on health care providers. However, there is little known about…”
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A survey of local diagnostic reference levels for the head, thorax, abdomen and pelvis computed tomography in Norway and Canada by 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

“…Background Computed tomography (CT) contributes to 60% of the collective dose in medical imaging. Literature has demonstrated that patient dose varies across…”
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The Effect of Cancer Patients’ and Their Family Caregivers’ Physical and Emotional Symptoms on Caregiver Burden by Johansen, Safora, Cvancarova, Milada, Ruland, Cornelia

“…BACKGROUND:Although there is significant evidence that the family caregivers (FCs) of cancer patients can experience significant caregiver burden and symptoms,…”
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Leading International Research and Educational Collaborations – A Perspective on Successful Partnerships by Gunn, Catherine, Johansen, Safora

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Dose Distribution in the Heart and Cardiac Chambers Following 4-field Radiation Therapy of Breast Cancer: a Retrospective Study by Johansen, Safora, Tjessem, Kristin H., Fosså, Kristian, Bosse, Gerhard, Danielsen, Turi, Malinen, Eirik, Fosså, Sophie D.

“…Purpose To evaluate cardiac doses in breast cancer patients with stage II/III treated with 4-field radiotherapy based on computed tomography (CT) dose…”
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Construction and validation of a low cost paediatric pelvis phantom by Mohammed Ali, Ali, Hogg, Peter, Johansen, Safora, England, Andrew

“…Imaging phantoms can be cost prohibitive, therefore a need exists to produce low cost alternatives which are fit for purpose. This paper describes the…”
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Contrast medium protocols in routine chest CT: a survey study by Henning, Mette Karen, Aaløkken, Trond Mogens, Johansen, Safora

“…Administration of contrast medium (CM) is an important image quality factor in computed tomography (CT) of the chest. There is no clear evidence or guidelines…”
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Recruitment challenges in clinical research including cancer patients and their caregivers. A randomized controlled trial study and lessons learned by Sygna, Karin, Johansen, Safora, Ruland, Cornelia M

“…To test seven different strategies for recruitment in a randomized controlled trial, to report documented response data from each strategy, and to discuss…”
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International Student Mobility in Radiography: Agency and Experience by Gunn, Catherine, Friedrich-Nel, Hesta, Johansen, Safora

“…The purpose of the study was to evaluate student exchange experiences to gain insight into what students perceived as benefits, challenges, and overall areas…”
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Research activity among diagnostic and therapeutic radiographers: An international survey by Oliveira, Marcus, Hogg, Peter, Di Prospero, Lisa, Lacey, Stephen, El-Farra, Samar, Johansen, Safora

“…Various national solutions have been considered and implemented to address the factors which limit radiographer engagement in conducting research…”
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Overall survival after initial radiotherapy for brain metastases; a population based study of 2140 patients with non-small cell lung cancer by Karlsson, Astrid Telhaug, Hjermstad, Marianne Jensen, Omdahl, Therese, Aass, Nina, Skovlund, Eva, Hellebust, Taran P, Johansen, Safora, Kaasa, Stein, Yri, Olav Erich

“…Brain metastases (BM) occur in about 30% of all patients with non-small cell lung cancer (NSCLC). BM treatment guidelines recommend more frequent use of…”
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Evaluation of an in-use chest CT protocol in lung cancer screening - A single institutional study by Naimi, Salma, Tetteh, Mercy Afadzi, Ashraf, Haseem, Johansen, Safora

“…Background Lung cancer is the most common cause of cancer-related death worldwide and therefore there has been a growing demand for low-dose computed…”
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Arm and shoulder morbidity following surgery and radiotherapy for breast cancer by Johansen, Safora, Fosså, Kristian, Nesvold, Inger L, Malinen, Eirik, Fosså, Sophie D

“…To explore the relationship between radiotherapy (RT) dose levels in the arm/shoulder region and arm/shoulder morbidity in breast cancer patients. This study…”
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