Bjørn Helge Østerås

  • CT/X-ray Physicist; PhD
 

Publications 2019

Østerås BH, Martinsen ACT, Gullien R, Skaane P (2019)
Digital Mammography versus Breast Tomosynthesis: Impact of Breast Density on Diagnostic Performance in Population-based Screening
Radiology, 293 (1), 60-68
DOI 10.1148/radiol.2019190425, PubMed 31407968

Skaane P, Bandos AI, Niklason LT, Sebuødegård S, Østerås BH, Gullien R, Gur D, Hofvind S (2019)
Digital Mammography versus Digital Mammography Plus Tomosynthesis in Breast Cancer Screening: The Oslo Tomosynthesis Screening Trial
Radiology, 291 (1), 23-30
DOI 10.1148/radiol.2019182394, PubMed 30777808

Publications 2018

Østerås BH, Skaane P, Gullien R, Martinsen ACT (2018)
Average glandular dose in paired digital mammography and digital breast tomosynthesis acquisitions in a population based screening program: effects of measuring breast density, air kerma and beam quality
Phys Med Biol, 63 (3), 035006
DOI 10.1088/1361-6560/aaa614, PubMed 29311416

Skaane P, Sebuødegård S, Bandos AI, Gur D, Østerås BH, Gullien R, Hofvind S (2018)
Performance of breast cancer screening using digital breast tomosynthesis: results from the prospective population-based Oslo Tomosynthesis Screening Trial
Breast Cancer Res Treat, 169 (3), 489-496
DOI 10.1007/s10549-018-4705-2, PubMed 29429017

Publications 2017

Jensen K, Andersen HK, Smedby Ö, Østerås BH, Aarsnes A, Tingberg A, Fosse E, Martinsen AC (2017)
Quantitative Measurements Versus Receiver Operating Characteristics and Visual Grading Regression in CT Images Reconstructed with Iterative Reconstruction: A Phantom Study
Acad Radiol, 25 (4), 509-518
DOI 10.1016/j.acra.2017.10.020, PubMed 29198945

Publications 2016

Østerås BH, Heggen KL, Pedersen HK, Andersen HK, Martinsen AC (2016)
Can use of adaptive statistical iterative reconstruction reduce radiation dose in unenhanced head CT? An analysis of qualitative and quantitative image quality
Acta Radiol Open, 5 (8), 2058460116645831
DOI 10.1177/2058460116645831, PubMed 27583169

Østerås BH, Jensen K, Andersen HK, Martinsen AC (2016)
[Radiation-induced cataracts]
Tidsskr Nor Laegeforen, 136 (21), 1809-1812
DOI 10.4045/tidsskr.16.0307, PubMed 27883104

Østerås BH, Martinsen AC, Brandal SH, Chaudhry KN, Eben E, Haakenaasen U, Falk RS, Skaane P (2016)
Classification of fatty and dense breast parenchyma: comparison of automatic volumetric density measurement and radiologists' classification and their inter-observer variation
Acta Radiol, 57 (10), 1178-85
DOI 10.1177/0284185115626469, PubMed 26792823

Østerås BH, Martinsen AC, Brandal SH, Chaudhry KN, Eben E, Haakenaasen U, Falk RS, Skaane P (2016)
BI-RADS Density Classification From Areometric and Volumetric Automatic Breast Density Measurements
Acad Radiol, 23 (4), 468-78
DOI 10.1016/j.acra.2015.12.016, PubMed 26847741

Publications 2012

Kuttner S, Bujila R, Kortesniemi M, Andersson H, Kull L, Østerås BH, Thygesen J, Tarp IS (2012)
A proposed protocol for acceptance and constancy control of computed tomography systems: a Nordic Association for Clinical Physics (NACP) work group report
Acta Radiol, 54 (2), 188-98
DOI 10.1258/ar.2012.120254, PubMed 23160544

Larsen AS, Osterås BH (2012)
Step back from the patient: reduction of radiation dose to the operator by the systematic use of an automatic power injector for contrast media in an interventional angiography suite
Acta Radiol, 53 (3), 330-4
DOI 10.1258/ar.2011.110560, PubMed 22334873

Publications 2006

Osterås BH, Hole EO, Olsen DR, Malinen E (2006)
EPR dosimetry of radiotherapy photon beams in inhomogeneous media using alanine films
Phys Med Biol, 51 (24), 6315-28
DOI 10.1088/0031-9155/51/24/003, PubMed 17148820

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