CT/X-ray Research & Technology Publications

Publications 2024

1. Varghese BA, Cen SY, Jensen K, Levy J, Andersen HK, Schulz A, Lei X, Duddalwar VA, Goodenough DJ (2024)
   Technical and clinical considerations of a physical liver phantom for CT radiomics analysis
   J Appl Clin Med Phys, 25 (4), e14309
   DOI 10.1002/acm2.14309, PubMed 38386922

Publications 2023

1. Afroz S, Østerås BH, Thevathas US, Dohlen G, Stokke C, Robsahm TE, Olerud HM (2023)
   Use of ionizing radiation in a Norwegian cohort of children with congenital heart disease: imaging frequency and radiation dose for the Health Effects of Cardiac Fluoroscopy and Modern Radiotherapy in Pediatrics (HARMONIC) study
   Pediatr Radiol, 53 (12), 2502-2514
   DOI 10.1007/s00247-023-05774-8, PubMed 37773444
2. Midthun P, Kirkhus E, Østerås BH, Høiness PR, England A, Johansen S (2023)
   Metal artifact reduction on musculoskeletal CT: a phantom and clinical study
   Eur Radiol Exp, 7 (1), 46
   DOI 10.1186/s41747-023-00354-9, PubMed 37524994
3. Njølstad T, Schulz A, Jensen K, Andersen HK, Martinsen ACT (2023)
   Improved image quality with deep learning reconstruction – a study on a semi-anthropomorphic upper-abdomen phantom
   Research in Diagnostic and Interventional Imaging, 5, 1-8
   DOI 10.1016/j.redii.2023.100022, PublikaID 426
4. Njølstad T, Schulz A, Jensen K, Andersen HK, Martinsen ACT (2023)
   Improved image quality with deep learning reconstruction - a study on a semi-anthropomorphic upper-abdomen phantom
   Res Diagn Interv Imaging, 5, 100022
   DOI 10.1016/j.redii.2023.100022, PubMed 39076164
5. Skaane P, Østerås BH, Yanakiev S, Lie T, Eben EB, Gullien R, Brandal SHB (2023)
   Discordant and false-negative interpretations at digital breast tomosynthesis in the prospective Oslo Tomosynthesis Screening Trial (OTST) using independent double reading
   Eur Radiol, 34 (6), 3912-3923
   DOI 10.1007/s00330-023-10400-0, PubMed 37938385
6. Varghese BA, Cen SY, Jensen K, Levy J, Andersen HK, Schulz A, Lei X, Duddalwar VA, Goodenough DJ (2023)
   Investigating the role of imaging factors in the variability of CT-based texture analysis metrics
   J Appl Clin Med Phys, 25 (4), e14192
   DOI 10.1002/acm2.14192, PubMed 37962032

Publications 2022

1. Njølstad T, Jensen K, Dybwad A, Salvesen Ø, Andersen HK, Schulz A (2022)
   Low-contrast detectability and potential for radiation dose reduction using deep learning image reconstruction-A 20-reader study on a semi-anthropomorphic liver phantom
   Eur J Radiol Open, 9, 100418
   DOI 10.1016/j.ejro.2022.100418, PubMed 35391822

Publications 2021

1. Godt JC, Johansen CK, Martinsen ACT, Schulz A, Brøgger HM, Jensen K, Stray-Pedersen A, Dormagen JB (2021)
   Iterative reconstruction improves image quality and reduces radiation dose in trauma protocols; A human cadaver study
   Acta Radiol Open, 10 (10), 20584601211055389
   DOI 10.1177/20584601211055389, PubMed 34840815
2. Harsaker V, Jensen K, Andersen HK, Martinsen AC (2021)
   Quantitative benchmarking of iodine imaging for two CT spectral imaging technologies: a phantom study
   Eur Radiol Exp, 5 (1), 24
   DOI 10.1186/s41747-021-00224-2, PubMed 34159477
3. Pettersen HES, Aehle M, Alme J, Barnaföldi GG, Borshchov V, van den Brink A, Chaar M, Eikeland V, Feofilov G, Garth C, Gauger NR, Genov G, Grøttvik O, Helstrup H, Igolkin S, Keidel R, Kobdaj C, Kortus T, Leonhardt V, Mehendale S, Mulawade RN, Odland OH, Papp G, Peitzmann T, Piersimoni P et al. (2021)
   Investigating particle track topology for range telescopes in particle radiography using convolutional neural networks
   Acta Oncol, 60 (11), 1413-1418
   DOI 10.1080/0284186X.2021.1949037, PubMed 34259117
4. Pettersen HES, Volz L, Sølie JR, Alme J, Barnaföldi GG, Barthel R, van den Brink A, Borshchov V, Chaar M, Eikeland V, Genov G, Grøttvik O, Helstrup H, Keidel R, Kobdaj C, van der Kolk N, Mehendale S, Meric I, Harald Odland O, Papp G, Peitzmann T, Piersimoni P, Protsenko M, Ur Rehman A, Richter M et al. (2021)
   Helium radiography with a digital tracking calorimeter-a Monte Carlo study for secondary track rejection
   Phys Med Biol, 66 (3), 035004
   DOI 10.1088/1361-6560/abca03, PubMed 33181502

Publications 2020

1. Afadzi M, Fosså K, Andersen HK, Aaløkken TM, Martinsen ACT (2020)
   Image Quality Measured From Ultra-Low Dose Chest Computed Tomography Examination Protocols Using 6 Different Iterative Reconstructions From 4 Vendors, a Phantom Study
   J Comput Assist Tomogr, 44 (1), 95-101
   DOI 10.1097/RCT.0000000000000947, PubMed 31939889
2. Akyea-Larbi KO, Tetteh MA, Martinsen ACT, Hasford F, Inkoom S, Jensen K (2020)
   BENCHMARKING OF A NEW AUTOMATIC CT RADIATION DOSE CALCULATOR
   Radiat Prot Dosimetry, 191 (3), 361-368
   DOI 10.1093/rpd/ncaa167, PubMed 33151301
3. Alme J, Barnafoldi GG, Barthel R, Borshchov V, Bodova T, van den Brink A, Brons S, Chaar M, Eikeland V, Feofilov G, Genov G, Grimstad S, Grottvik O, Helstrup H, Herland A, Hilde AE, Igolkin S, Keidel R, Kobdaj C, van der Kolk N, Listratenko O, Malik QW, Mehendale S, Meric I, Nesbo SV et al. (2020)
   A High-Granularity Digital Tracking Calorimeter Optimized for Proton CT
   Front. Physics, 8, 568243
   DOI 10.3389/fphy.2020.568243
4. Jensen K, Hagemo G, Tingberg A, Steinfeldt-Reisse C, Mynarek GK, Rivero RJ, Fosse E, Martinsen AC (2020)
   Evaluation of Image Quality for 7 Iterative Reconstruction Algorithms in Chest Computed Tomography Imaging: A Phantom Study
   J Comput Assist Tomogr, 44 (5), 673-680
   DOI 10.1097/RCT.0000000000001037, PubMed 32936576
5. Tambave G, Alme J, Barnafoldi GG, Barthel R, van den Brink A, Brons S, Chaar M, Eikeland V, Genov G, Grottvik O, Pettersen HES, Pastuovic Z, Huiberts S, Helstrup H, Hetland KF, Mehendale S, Meric I, Malik QW, Odland OH, Papp G, Peitzmann T, Piersimoni P, Rehman AU, Reidt F, Richter M et al. (2020)
   Characterization of monolithic CMOS pixel sensor chip with ion beams for application in particle computed tomography
   Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip., 958, 162626
   DOI 10.1016/j.nima.2019.162626
6. Volz L, Collins-Fekete CA, Sølie JR, Seco J (2020)
   Theoretical considerations on the spatial resolution limit of single-event particle radiography
   Biomed Phys Eng Express, 6 (5), 055002
   DOI 10.1088/2057-1976/ab9c3f, PubMed 33444233

Publications 2019

1. Afadzi M, Lysvik EK, Andersen HK, Martinsen ACT (2019)
   Ultra-low dose chest computed tomography: Effect of iterative reconstruction levels on image quality
   Eur J Radiol, 114, 62-68
   DOI 10.1016/j.ejrad.2019.02.021, PubMed 31005179
2. Pettersen HES, Alme J, Barnaföldi GG, Barthel R, van den Brink A, Chaar M, Eikeland V, García-Santos A, Genov G, Grimstad S, Grøttvik O, Helstrup H, Hetland KF, Mehendale S, Meric I, Odland OH, Papp G, Peitzmann T, Piersimoni P, Ur Rehman A, Richter M, Samnøy AT, Seco J, Shafiee H, Skjæveland EV et al. (2019)
   Design optimization of a pixel-based range telescope for proton computed tomography
   Phys Med, 63, 87-97
   DOI 10.1016/j.ejmp.2019.05.026, PubMed 31221414
3. 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
4. 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

Publications 2018

1. Andersen HK, Völgyes D, Martinsen ACT (2018)
   Image quality with iterative reconstruction techniques in CT of the lungs-A phantom study
   Eur J Radiol Open, 5, 35-40
   DOI 10.1016/j.ejro.2018.02.002, PubMed 29719856
2. Godt JC, Eken T, Schulz A, Johansen CK, Aarsnes A, Dormagen JB (2018)
   Triple-split-bolus versus single-bolus CT in abdominal trauma patients: a comparative study
   Acta Radiol, 59 (9), 1038-1044
   DOI 10.1177/0284185117752522, PubMed 29350048
3. Pettersen HES, Chaar M, Meric I, Odland OH, Solie JR, Rohrich D (2018)
   Accuracy of parameterized proton range models; A comparison
   Radiat. Phys. Chem., 144, 295-297
   DOI 10.1016/j.radphyschem.2017.08.028
4. 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
5. 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
6. Aarsnes A, Dahle G, Fosse E, Rein KA, Aaberge L, Martinsen ACT (2018)
   EVALUATION OF OCCUPATIONAL RADIATION DOSE IN TRANSCATHETER AORTIC VALVE IMPLANTATION
   Radiat Prot Dosimetry, 179 (1), 9-17
   DOI 10.1093/rpd/ncx184, PubMed 29036717

Publications 2017

1. Abdelnoor M, Andersen JG, Arnesen H, Johansen O (2017)
   Early discharge compared with ordinary discharge after percutaneous coronary intervention - a systematic review and meta-analysis of safety and cost
   Vasc Health Risk Manag, 13, 101-109
   DOI 10.2147/VHRM.S122951, PubMed 28356750
2. Andresen B, Mishra V, Lewandowska M, Andersen JG, Andersen MH, Lindberg H, Døhlen G, Fosse E (2017)
   In-hospital cost comparison between percutaneous pulmonary valve implantation and surgery
   Eur J Cardiothorac Surg, 51 (4), 747-753
   DOI 10.1093/ejcts/ezw378, PubMed 28007875
3. 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

1. Brænne KR, Flinder LI, Almenning Martiniussen M, Jensen K, Reisse CH, Julsrud L, Martinsen AC (2016)
   A Liver Phantom Study: CT Radiation Dose Reduction and Different Image Reconstruction Algorithms Affect Diagnostic Quality
   J Comput Assist Tomogr, 40 (5), 735-9
   DOI 10.1097/RCT.0000000000000433, PubMed 27224229
2. Jensen K, Aaløkken TM, Tingberg A, Fosse E, Martinsen AC (2016)
   Image Quality in Oncologic Chest Computerized Tomography With Iterative Reconstruction: A Phantom Study
   J Comput Assist Tomogr, 40 (3), 351-6
   DOI 10.1097/RCT.0000000000000364, PubMed 27192499
3. Lauritzen PM, Andersen JG, Stokke MV, Tennstrand AL, Aamodt R, Heggelund T, Dahl FA, Sandbæk G, Hurlen P, Gulbrandsen P (2016)
   Radiologist-initiated double reading of abdominal CT: retrospective analysis of the clinical importance of changes to radiology reports
   BMJ Qual Saf, 25 (8), 595-603
   DOI 10.1136/bmjqs-2015-004536, PubMed 27013638
4. Mozejko D, Andersen HK, Pedersen M, Waaler D, Martinsen AC (2016)
   Image texture and radiation dose properties in CT
   J Appl Clin Med Phys, 17 (3), 408-418
   DOI 10.1120/jacmp.v17i3.5900, PubMed 27167260
5. Nyheim T, Staxrud LE, Jørgensen JJ, Jensen K, Olerud HM, Sandbæk G (2016)
   Radiation exposure in patients treated with endovascular aneurysm repair: what is the risk of cancer, and can we justify treating younger patients?
   Acta Radiol, 58 (3), 323-330
   DOI 10.1177/0284185116651002, PubMed 27279268
6. 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
7. 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
8. 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
9. 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 2015

1. Andersen JG, Grepperud S, Kløw NE, Johansen O (2015)
   Effects on length of stay and costs with same-day retransfer to the referring hospitals for patients with acute coronary syndrome after angiography and/or percutaneous coronary intervention
   Eur Heart J Acute Cardiovasc Care, 5 (4), 375-80
   DOI 10.1177/2048872615593386, PubMed 26139591
2. Jensen K, Andersen HK, Tingberg A, Reisse C, Fosse E, Martinsen AC (2015)
   Improved Liver Lesion Conspicuity With Iterative Reconstruction in Computed Tomography Imaging
   Curr Probl Diagn Radiol, 45 (5), 291-6
   DOI 10.1067/j.cpradiol.2015.11.004, PubMed 26790606
3. Lauritzen PM, Stavem K, Andersen JG, Stokke MV, Tennstrand AL, Bjerke G, Hurlen P, Sandbæk G, Dahl FA, Gulbrandsen P (2015)
   Double reading of current chest CT examinations: Clinical importance of changes to radiology reports
   Eur J Radiol, 85 (1), 199-204
   DOI 10.1016/j.ejrad.2015.11.012, PubMed 26724666

Publications 2014

1. Andersen HK, Jensen K, Berstad AE, Aaløkken TM, Kristiansen J, von Gohren Edwin B, Hagen G, Martinsen AC (2014)
   Choosing the best reconstruction technique in abdominal computed tomography: a systematic approach
   J Comput Assist Tomogr, 38 (6), 853-8
   DOI 10.1097/RCT.0000000000000139, PubMed 25119064
2. Jensen K, Martinsen AC, Tingberg A, Aaløkken TM, Fosse E (2014)
   Comparing five different iterative reconstruction algorithms for computed tomography in an ROC study
   Eur Radiol, 24 (12), 2989-3002
   DOI 10.1007/s00330-014-3333-4, PubMed 25048191

Publications 2013

1. Andersen JG, Kløw NE, Johansen O (2013)
   Safe and feasible immediate retransfer of patients to the referring hospital after acute coronary angiography and percutaneous coronary angioplasty for patients with acute coronary syndrome
   Eur Heart J Acute Cardiovasc Care, 2 (3), 256-61
   DOI 10.1177/2048872613483587, PubMed 24222837

Publications 2012

1. 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
2. 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 2011

1. Martinsen AC, Sæther HK, Hol PK, Olsen DR, Skaane P (2011)
   Iterative reconstruction reduces abdominal CT dose
   Eur J Radiol, 81 (7), 1483-7
   DOI 10.1016/j.ejrad.2011.04.021, PubMed 21543174

Publications 2010

1. Jensen K, Zangani L, Martinsen AC, Sandbæk G (2010)
   Changes in dose-area product, entrance surface dose, and lens dose to the radiologist in a vascular interventional laboratory when an old X-ray system is exchanged with a new system
   Cardiovasc Intervent Radiol, 34 (4), 717-22
   DOI 10.1007/s00270-010-0017-6, PubMed 21069332
2. Martinsen AC, Saether HK, Olsen DR, Wolff PA, Skaane P (2010)
   Improved image quality of low-dose thoracic CT examinations with a new postprocessing software
   J Appl Clin Med Phys, 11 (3), 3242
   DOI 10.1120/jacmp.v11i3.3242, PubMed 20717095
3. Sæther HK, Lagesen B, Trægde Martinsen AC, Holsen EP, Øvrebø KM (2010)
   Dose levels from thoracic and pelvic examinations in two pediatric radiological departments in Norway - a comparison study of dose-area product and radiographic technique
   Acta Radiol, 51 (10), 1137-42
   DOI 10.3109/02841851.2010.515616, PubMed 20860497

Publications 2009

1. Saether HK, Martinsen AC, Korsmo L, Reiseter T (2009)
   [Radiation protection of childrens' chest during high resolution CT of the lungs]
   Tidsskr Nor Laegeforen, 129 (6), 521-3
   DOI 10.4045/tidsskr.09.30161, PubMed 19282888

Publications 2008

1. Martinsen AC, Saether HK, Olsen DR, Skaane P, Olerud HM (2008)
   Reduction in dose from CT examinations of liver lesions with a new postprocessing filter: a ROC phantom study
   Acta Radiol, 49 (3), 303-9
   DOI 10.1080/02841850701793769, PubMed 18365819

Publications 2006

1. 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

Publications 2005

1. Saether HK, Davidson TM, Widmark A, Wøhni T (2005)
   Measurements of finger doses in x-ray guided surgery, nuclear medicine and research
   Radiat Prot Dosimetry, 113 (4), 392-5
   DOI 10.1093/rpd/nch488, PubMed 15817576