Anne Catrine Trægde Martinsen

Førsteamanuensis - Biofysikk og medisinsk fysikk
Bilde av Anne Catrine Trægde Martinsen
Mobiltelefon 99216566 99216566
Rom Bygg 20, 2.etg
Brukernavn
Besøksadresse Gaustad Oslo Universitetssykehus
Postadresse Postboks 1048 Blindern 0316 OSLO

The CT physics and technology research group was established in 2012 with an ambition to establish a leading centre for CT physics and technology research in Norway. There has been little focus on CT research in Norway to date, but given a steady increase in the number of CT examinations, with about 80% of the total population radiation exposure from medical procedures stemming from CT , an increased research effort in this field is clearly needed. . The research topics addressed by the group include the development of new imaging methods, clinical implementation, radiation dose reduction and further development of new image reconstruction algorithms and image post processing tools, such as CT perfusion, CT spectral imaging and iterative reconstruction techniques.

The CT physics and technology research group focuses on the development and implementation of advanced image reconstruction and processing techniques with specific focus on improved patient diagnostics combined with reduced radiation dose. Future objectives include validation of new methodology, such as iterative image reconstruction, spectral imaging, CT organ perfusion, in terms of improved diagnostic outcome and socioeconomic value.

Projects:

  • Spectral imaging and iterative reconstruction in CT: Image quality and radiation doses
  • Optimization of diagnostic image quality and radiation dose of radiological tomography techniques using advanced post processing reconstruction algorithms
  • New method for liver metastasis diagnostics in patients with colorectal cancer (part of the Oslo Comet study)
  • Ultralow dose chest CT vs conventional chest X-ray
  • HyPerCept – Color and Quality in higher dimensions: Optimizing visual and diagnostic image quality in radiography. In collaboration with NTNU Gjøvik
  • CT image quality test methodology

 

 

Emneord: medisinsk avbildning, CT, digital imaging, medisinsk fysikk

Publikasjoner

  • Afadzi, Mercy; Lysvik, Elisabeth Kirkeby; Andersen, Hilde Kjernlie & Martinsen, Anne Catrine Trægde (2019). Ultra-low dose chest computed tomography: Effect of iterative reconstruction levels on image quality. European Journal of Radiology.  ISSN 0720-048X.  114, s 62- 68 . doi: 10.1016/j.ejrad.2019.02.021
  • Aarsnes, Anette; Dahle, Gry; Fosse, Erik; Rein, Kjell Arne; Aaberge, Lars & Martinsen, Anne Catrine Trægde (2018). Evaluation of occupational radiation dose in transcatheter aortic valve implantation. Radiation Protection Dosimetry.  ISSN 0144-8420.  179(1), s 9- 17 . doi: 10.1093/rpd/ncx184
  • Andersen, Hilde Kjernlie; Volgyes, David & Martinsen, Anne Catrine Trægde (2018). Image quality with iterative reconstruction techniques in CT of the lungs?A phantom study. European Journal of Radiology Open.  ISSN 2352-0477.  5, s 35- 40 . doi: 10.1016/j.ejro.2018.02.002 Fulltekst i vitenarkiv.
  • Jensen, Kristin; Andersen, Hilde Kjernlie; Smedby, Ørjan; Østerås, Bjørn Helge; Aarsnes, Anette; Tingberg, Anders; Fosse, Erik & Martinsen, Anne Catrine Trægde (2018). Quantitative Measurements Versus Receiver Operating Characteristics and Visual Grading Regression in CT Images Reconstructed with Iterative Reconstruction: A Phantom Study. Academic Radiology.  ISSN 1076-6332.  25(4), s 509- 518 . doi: 10.1016/j.acra.2017.10.020
  • Stokke, Caroline; Blakkisrud, Johan; Løndalen, Ayca; Dahle, Jostein; Martinsen, Anne Catrine Trægde; Holte, Harald & Kolstad, Arne (2018). Pre-dosing with lilotomab prior to therapy with 177Lu-lilotomab satetraxetan significantly increases the ratio of tumor to red marrow absorbed dose in non-Hodgkin lymphoma patients. European Journal of Nuclear Medicine and Molecular Imaging.  ISSN 1619-7070.  45(7), s 1233- 1241 . doi: 10.1007/s00259-018-3964-9 Fulltekst i vitenarkiv.
  • Völgyes, David; Martinsen, Anne Catrine Trægde; Stray-Pedersen, Arne; Waaler, Dag & Pedersen, Marius (2018). A Weighted Histogram-Based Tone Mapping Algorithm for CT images. Algorithms.  ISSN 1999-4893.  11(8), s 1- 20 . doi: 10.3390/a11080111 Fulltekst i vitenarkiv.
  • Völgyes, David; Martinsen, Anne Catrine Trægde; Stray-Pedersen, Arne; Waaler, Dag & Pedersen, Marius (2018). Image De-Quantization Using Plate Bending Model. Algorithms.  ISSN 1999-4893.  11(8) . doi: 10.3390/a11080110 Fulltekst i vitenarkiv.
  • Völgyes, David; Pedersen, Marius; Stray-Pedersen, Arne; Waaler, Dag & Martinsen, Anne Catrine Trægde (2018). Applicability of a clinical cardiac CT protocol in post mortem studies. Journal of Forensic Radiology and Imaging.  ISSN 2212-4780.  12, s 25- 30 . doi: 10.1016/j.jofri.2018.01.003 Fulltekst i vitenarkiv.
  • Østerås, Bjørn Helge; Skaane, Per; Gullien, Randi & Martinsen, Anne Catrine Trægde (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. Physics in Medicine and Biology.  ISSN 0031-9155.  63(3) . doi: 10.1088/1361-6560/aaa614
  • Blakkisrud, Johan; Løndalen, Ayca Muftuler; Martinsen, Anne Catrine Trægde; Dahle, Jostein; Holtedahl, Jon Erik; Bach-Gansmo, Tore; Holte, Harald; Kolstad, Arne & Stokke, Caroline (2017). Tumor absorbed dose for non-Hodgkin’s lymphoma patients treated with the novel anti-CD37 antibody radionuclide conjugate 177Lu-lilotomab satetraxetan. Journal of Nuclear Medicine.  ISSN 0161-5505.  58(1), s 48- 54 . doi: 10.2967/jnumed.116.173922
  • Husby, Ellen; Svendsen, Elisabeth Dahl; Andersen, Hilde Kjernlie & Martinsen, Anne Catrine Trægde (2017). 100 days with scans of the same Catphan phantom on the same CT scanner. Journal of Applied Clinical Medical Physics.  ISSN 1526-9914.  18(6), s 224- 231 . doi: 10.1002/acm2.12186
  • Volgyes, David; Pedersen, Marius; Stray-Pedersen, Arne; Waaler, Dag & Martinsen, Anne Catrine Trægde (2017). How different iterative and filtered back projection kernels affect computed tomography numbers and low contrast detectability. Journal of computer assisted tomography.  ISSN 0363-8715.  41(1), s 75- 81 . doi: 10.1097/RCT.0000000000000491 Fulltekst i vitenarkiv.
  • Brænne, Kristina R.; Flinder, Liv Ingrid; Martiniussen, Marit Almenning; Jensen, Kristin; Reisse, Claudius; Julsrud, Lars & Martinsen, Anne Catrine Trægde (2016). A liver phantom study: CT radiation dose reduction and different image reconstruction algorithms affect diagnostic quality. Journal of computer assisted tomography.  ISSN 0363-8715.  40(5), s 735- 739 . doi: 10.1097/RCT.0000000000000433
  • Jensen, Kristin; Aaløkken, Trond Mogens; Tingberg, Anders; Fosse, Erik & Martinsen, Anne Catrine Trægde (2016). Image quality in oncologic chest computerized tomography with iterative reconstruction: A phantom study. Journal of computer assisted tomography.  ISSN 0363-8715.  40(3), s 351- 356 . doi: 10.1097/RCT.0000000000000364
  • Jensen, Kristin; Andersen, Hilde Kjernlie; Tingberg, Anders; Reisse, Claudius; Fosse, Erik & Martinsen, Anne Catrine Trægde (2016). Improved Liver Lesion Conspicuity With Iterative Reconstruction in Computed Tomography Imaging. Current problems in diagnostic radiology.  ISSN 0363-0188.  45(5), s 291- 296 . doi: 10.1067/j.cpradiol.2015.11.004
  • Możejko, Dawid; Andersen, Hilde Kjernlie; Pedersen, Marius; Waaler, Dag & Martinsen, Anne Catrine Trægde (2016). Image texture and radiation dose properties in CT. Journal of Applied Clinical Medical Physics.  ISSN 1526-9914.  17(3), s 408- 418 . doi: 10.1120/jacmp.v17i3.5900
  • Østerås, Bjørn Helge; Jensen, Kristin; Andersen, Hilde Kjernlie & Martinsen, Anne Catrine Trægde (2016). Strålingsindusert katarakt. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  136(21), s 1809- 1812 . doi: 10.4045/tidsskr.16.0307
  • Østerås, Bjørn Helge; Livelten Heggen, Kristin; PEDERSEN, HANS KRISTIAN; Andersen, Hilde Kjernlie & Martinsen, Anne Catrine Trægde (2016). Can use of adaptive statistical iterative reconstruction reduce radiation dose in unenhanced head CT? An analysis of qualitative and quantitative image quality. Acta radiologica open.  ISSN 2058-4601.  5(8), s 1- 10 . doi: 10.1177/2058460116645831
  • Østerås, Bjørn Helge; Martinsen, Anne Catrine Trægde; Brandal, Siri Helene Bertelsen; Chaudhry, Khalida Nasreen; EBEN, ELLEN BRINCMANN; Haakenaasen, Unni; Falk, Ragnhild Sørum & Skaane, Per (2016). BI-RADS density classification from areometric and volumetric automatic breast density measurements. Academic Radiology.  ISSN 1076-6332.  23(4), s 468- 478 . doi: 10.1016/j.acra.2015.12.016
  • Østerås, Bjørn Helge; Martinsen, Anne Catrine Trægde; Brandal, Siri Helene Bertelsen; Chaudhry, Khalida Nasreen; EBEN, ELLEN BRINCMANN; Haakenaasen, Unni; Falk, Ragnhild Sørum & Skaane, Per (2016). Classification of fatty and dense breast parenchyma: Comparison of automatic volumetric density measurement and radiologists' classification and their inter-observer variation. Acta Radiologica.  ISSN 0284-1851.  57(10), s 1178- 1185 . doi: 10.1177/0284185115626469
  • Hjornevik, Trine; Martinsen, Anne Catrine Trægde; Hagve, Signe Elise; Andersen, Merethe Wigen; Mørk, Anne Cecile; Fjeld, Jan Gunnar & Ruud, Ellen (2015). Experiences from Introducing Standardized High Dose 131I-mIBG Treatment of Children with Refractory Neuroblastoma: Differences in Effective Dose to Patients and Exposure to Caregivers. Journal of Nuclear Medicine & Radiation Therapy.  ISSN 2155-9619.  6(258) . doi: 10.4172/2155-9619.1000258
  • Roa, Ana Maria Acosta; Andersen, Hilde Kjernlie & Martinsen, Anne Catrine Trægde (2015). CT image quality over time: Comparison of image quality for six different CT scanners over a six-year period. Journal of Applied Clinical Medical Physics.  ISSN 1526-9914.  16(2), s 350- 365 . doi: 10.1120/jacmp.v16i2.4972
  • Andersen, Hilde Kjernlie; Jensen, Kristin; Berstad, Audun Elnæs; Aaløkken, Trond Mogens; Kristiansen, Joanna; Edwin, Bjørn; Hagen, Gaute & Martinsen, Anne Catrine Trægde (2014). Choosing the best reconstruction technique in abdominal computed tomography: a systematic approach. Journal of computer assisted tomography.  ISSN 0363-8715.  38(6), s 853- 858 . doi: 10.1097/RCT.0000000000000139
  • Gulliksrud, Kristine; Stokke, Caroline & Martinsen, Anne Catrine Trægde (2014). How to measure CT image quality: Variations in CT-numbers, uniformity and low contrast resolution for a CT quality assurance phantom. Physica medica (Testo stampato).  ISSN 1120-1797.  30(4), s 521- 526 . doi: 10.1016/j.ejmp.2014.01.006
  • Jensen, Kristin; Martinsen, Anne Catrine Trægde; Tingberg, Anders; Aaløkken, Trond Mogens & Fosse, Erik (2014). Comparing five different iterative reconstruction algorithms for computed tomography in an ROC study. European Radiology.  ISSN 0938-7994.  24(12), s 2989- 3002 . doi: 10.1007/s00330-014-3333-4
  • Martinsen, Anne Catrine Trægde; Sæther, Hilde Kjernlie; Hol, Per Kristian; Olsen, Dag Rune & Skaane, Per (2012). Iterative reconstruction reduces abdominal CT dose. European Journal of Radiology.  ISSN 0720-048X.  81(7), s 1483- 1487 . doi: 10.1016/j.ejrad.2011.04.021
  • Jensen, Kristin; Zangani, Livia; Martinsen, Anne Catrine Trægde & Sandbæk, Gunnar (2011). 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. Cardiovascular and Interventional Radiology.  ISSN 0174-1551.  34(4), s 717- 722 . doi: 10.1007/s00270-010-0017-6
  • Martinsen, Anne Catrine Trægde; Sæther, Hilde Kjernlie; Olsen, Dag Rune; Wolff, Per Aage & Skaane, Per (2010). Improved image quality of low-dose thoracic CT examinations with a new postprocessing software. Journal of Applied Clinical Medical Physics.  ISSN 1526-9914.  11(3), s 250- 258
  • Sande, Erlend Peter Skaug; Martinsen, Anne Catrine Trægde; Hole, Eli Olaug & Olerud, Hilde Merete (2010). Interphantom and interscanner variations for Hounsfield units-establishment of reference values for HU in a commercial QA phantom. Physics in Medicine and Biology.  ISSN 0031-9155.  55(17), s 5123- 5135 . doi: 10.1088/0031-9155/55/17/015
  • Sæther, Hilde Kjernlie; Lagesen, Bente; Martinsen, Anne Catrine Trægde; Holsen, Eva Cecilie Platou & Øvrebø, Kirsti Marie (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 Radiologica.  ISSN 0284-1851.  51(10), s 1137- 1142 . doi: 10.3109/02841851.2010.515616
  • Sæther, Hilde Kjernlie; Martinsen, Anne Catrine Trægde; Korsmo, Lena & Reiseter, Tor (2009). Strålebeskyttelse av barns bryst ved høyoppløselig CT av lungene. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  129(6), s 521- 523
  • Martinsen, Anne Catrine Trægde; Saether, HK; Olsen, Dag Rune; Skaane, Per & Olerud, Hilde Merete (2008). Reduction in dose from CT examinations of liver lesions with a new postprocessing filter: A ROC phantom study. Acta Radiologica.  ISSN 0284-1851.  49 . doi: 10.1080/02841850701793769

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  • Volgyes, David; Pedersen, Marius; Martinsen, Anne Catrine Trægde; Waaler, Dag & Stray-Pedersen, Arne (2018). Image quality in forensic CT imaging. Doktoravhandlinger ved NTNU. 2018:294.
  • Stray-Pedersen, Arne; Osberg, Silje; Martinsen, Anne Catrine Trægde & Rognum, Torleiv Ole (2015). Implementation of CT imaging in post mortem forensic examination. Scandinavian Journal of Forensic Science (Online).  ISSN 2353-0707.  21(1)
  • Østerås, Bjørn Helge; Martinsen, Anne Catrine Trægde; Brandal, Siri Helene B.; Chaudhry, Khalida Nasreen; EBEN, ELLEN BRINCMANN; Haakenaasen, Unni; Falk, Ragnhild Sørum & Skaane, Per (2015). Automatic breast density classification in mammography screening.
  • Aaløkken, Trond Mogens; Mynarek, Georg & Martinsen, Anne Catrine Trægde (2014). A pregnant woman with vomiting and breathing difficulties. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.
  • Mynarek, Georg; Aaløkken, Trond Mogens; Martinsen, Anne Catrine Trægde & Brustugun, Odd Terje (2014). Re: Begrenset malignitetsutredning ved idiopatisk venøs trombose :. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  134(8), s 814- 815 . doi: 10.4045/tidsskr.14.0468
  • Jensen, Kristin; Reisse, Claudius & Martinsen, Anne Catrine Trægde (2013). Visualisation of liver lesions with spectral CT imaging, a phantom study.
  • Østerås, Bjørn Helge; Heggen, Kristin Livelten; Skog, Thomas Alexander & Martinsen, Anne Catrine Trægde (2013). A matched pair comparison of contrast to noise ratio in standard and dose reduced head CT using filtered backprojection and adaptive iterative reconstruction.

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Publisert 20. mars 2012 08:45 - Sist endret 11. jan. 2017 14:02