Bjørn Helge Østerås
- CT/X-ray Physicist; PhD
Publications 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
Digital Mammography versus Digital Mammography Plus Tomosynthesis in Breast Cancer Screening: The Oslo Tomosynthesis Screening Trial
Radiology, 291 (1), 22-29
DOI 10.1148/radiol.2019182394
Publications 2018
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
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
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
Publications 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
Radiation induced cataract
Tidsskr. Nor. Laegeforen., 136 (21), 1809-1812
DOI 10.4045/tidsskr.16.0307
BI-RADS Density Classification From Areometric and Volumetric Automatic Breast Density Measurements
Acad. Radiol., 23 (4), 468-478
DOI 10.1016/j.acra.2015.12.016
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), 1178-1185
DOI 10.1177/0284185115626469
Publications 2013
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), 188-198
DOI 10.1258/ar.2012.120254
Publications 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), 330-334
DOI 10.1258/ar.2011.110560
Publications 2006
EPR dosimetry of radiotherapy photon beams in inhomogeneous media using alanine films
Phys. Med. Biol., 51 (24), 6315-6328
DOI 10.1088/0031-9155/51/24/003