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Per Thunberg

Title: Adjunct Senior Lecturer School/office: School of Medical Sciences


Phone: +46 19 303000

Room: -

Per Thunberg
Research subject

About Per Thunberg

Per Thunberg has an MSc in Engineering Physics from Umeå University and a PhD in Biomedical Engineering from Linköping University. Since 2009, he is docent (associate professor) at Örebro University. He is the director of Center for Experimental and Biomedical Imaging in Örebro (CEBIO) and MR physicist at the Department of Medical Physics, Örebro University Hospital.

Per Thunberg’s research is mainly focused on applications and development of medical imaging techniques used within health and medical care, for example magnetic resonance imaging (MRI), computed tomography (CT) and ultrasound.


Articles in journals |  Conference papers |  Manuscripts | 

Articles in journals

Andersén, C. , Rydén, T. , Thunberg, P. & H. Lagerlöf, J. (2020). Deep learning based digitisation of prostate brachytherapy needles in ultrasound images. Medical physics, 47 (12), 6414-6420.
Lidén, M. , Hjelmgren, O. , Vikgren, J. & Thunberg, P. (2020). Multi-Reader-Multi-Split Annotation of Emphysema in Computed Tomography. Journal of digital imaging, 33 (5), 1185-1193.
Längkvist, M. , Jendeberg, J. , Thunberg, P. , Loutfi, A. & Lidén, M. (2018). Computer aided detection of ureteral stones in thin slice computed tomography volumes using Convolutional Neural Networks. Computers in Biology and Medicine, 97, 153-160.
Krauss, W. , Gunnarsson, M. , Nilsson, M. & Thunberg, P. (2018). Conventional and synthetic MRI in multiple sclerosis: a comparative study. European Radiology, 28 (4), 1692-1700.
Andersson, K. M. , Vallhagen Dahlgren, C. , Reizenstein, J. , Cao, Y. , Ahnesjö, A. & Thunberg, P. (2018). Evaluation of two commercial CT metal artifact reduction algorithms for use in proton radiotherapy treatment planning in the head and neck area. Medical physics (Lancaster), 45 (10), 4329-4344.
Lidén, M. , Wodecki, M. , Thunberg, P. & Rask, P. (2017). Impact of Heart Rate on Flow Measurements in Aortic Regurgitation. Journal of Heart Valve Disease, 26 (5), 502-508.
Hellstrandh Jorstig, S. , Waldenborg, M. , Lidén, M. , Wodecki, M. & Thunberg, P. (2016). Determination of Right Ventricular Volume by Combining Echocardiographic Distance Measurements. Echocardiography, 33 (6), 844-853.
Andersson, K. M. , Norrman, E. , Geijer, H. , Krauss, W. , Cao, Y. , Jendeberg, J. , Geijer, M. , Lidén, M. & et al. (2016). Visual grading evaluation of commercially available metal artefact reduction techniques in hip prosthesis computed tomography. British Journal of Radiology, 89 (1063).
Jorstig, S. H. , Emilsson, K. , Lidén, M. & Thunberg, P. (2015). A study to determine the contribution to right ventricle stroke volume from pulmonary and tricuspid valve displacement volumes. Clinical Physiology and Functional Imaging, 35 (4), 283-290.
Andersson, K. M. , Nowik, P. , Persliden, J. , Thunberg, P. & Norrman, E. (2015). Metal artefact reduction in CT imaging of hip prostheses-an evaluation of commercial techniques provided by four vendors. British Journal of Radiology, 88 (1052).
Funk, E. , Anderzén-Carlsson, A. , Ingverud, P. , Leander, A. & Thunberg, P. (2015). Patient-initiated breath-holds in MRI: an alternative for reducing respiratory artifacts and improving image quality. Clinical imaging, 39 (4), 619-622.
Lidén, M. , Thunberg, P. , Broxvall, M. & Geijer, H. (2015). Two- and three-dimensional CT measurements of urinary calculi length and width: a comparative study. Acta Radiologica, 56 (4), 487-492.
Funk, E. , Thunberg, P. & Anderzen-Carlsson, A. (2014). Patients' experiences in magnetic resonance imaging (MRI) and their experiences of breath holding techniques. Journal of Advanced Nursing, 70 (8), 1880-1890.
Jorstig, S. H. , Kähäri, A. , Emilsson, K. & Thunberg, P. (2012). Calculation of right ventricular stroke volume in short-axis MR images using the equation of the tricuspid plane. Clinical Physiology and Functional Imaging, 32 (1), 5-11.
Broxvall, M. , Emilsson, K. & Thunberg, P. (2012). Fast GPU based adaptive filtering of 4D echocardiography. IEEE Transactions on Medical Imaging, 31 (6), 1165-1172.
Thunberg, P. , Emilsson, K. , Rask, P. & Kähäri, A. (2012). Flow and peak velocity measurements in patients with aortic valve stenosis using phase contrast MR accelerated with k-t BLAST. European Journal of Radiology, 81 (9), 2203-2207.
Lidén, M. , Andersson, T. , Broxvall, M. , Thunberg, P. & Geijer, H. (2012). Urinary stone size estimation: a new segmentation algorithm-based CT method. European Radiology, 22 (4), 731-737.
Thunberg, P. & Kähäri, A. (2011). Visualization of through-plane blood flow measurements obtained from phase-contrast MRI. Journal of digital imaging, 24 (3), 470-477.
Trincavelli, M. , Coradeschi, S. , Loutfi, A. , Söderquist, B. & Thunberg, P. (2010). Direct identification of bacteria in blood culture samples using an electronic nose. IEEE Transactions on Biomedical Engineering, 57 (12), 2884-2890.
Thunberg, P. , Emilsson, K. , Rask, P. & Kähäri, A. (2008). Estimation of ejection fraction and stroke volume using single- and biplane magnetic resonance imaging of the left cardiac ventricle. Acta Radiologica, 49 (9), 1016-1023.
Thunberg, P. , Emilsson, K. , Rask, P. & Kähäri, A. (2008). Separating the left cardiac ventricle from the atrium in short axis MR images using the equation of the atrioventricular plane. Clinical Physiology and Functional Imaging, 28 (4), 222-228.
Thunberg, P. & Zetterberg, P. (2007). Noise distribution in SENSE- and GRAPPA-reconstructed images: a computer simulation study. Magnetic Resonance Imaging, 25 (7), 1089-1094.
Emilsson, K. , Kähäri, A. , Bodin, L. & Thunberg, P. (2007). Outer contour and radial changes of the cardiac left ventricle: a magnetic resonance imaging study.. Clinical Research in Cardiology, 96 (5), 272-278.
Thunberg, P. , Karlsson, M. & Wigström, L. (2005). Comparison of different methods for combining phase-contrast images obtained with multiple coils. Magnetic Resonance Imaging, 23 (7), 795-799.
Emilsson, K. , Kähäri, A. , Bodin, L. & Thunberg, P. (2004). Comparison between angiographic right coronary artery motion and echocardiographic tricuspid annulus motion. Scandinavian Cardiovascular Journal, 38 (2), 85-92.
Thunberg, P. , Karlsson, M. & Wigström, L. (2003). Accuracy and reproducibility in phase contrast imaging using SENSE. Magnetic Resonance in Medicine, 50 (5), 1061-0168.
Kähäri, A. , Thunberg, P. , Emilsson, K. , Geijer, H. , Andersson, T. & Wandt, B. (2003). Assessment of left ventricular function from M-mode measurement of circumflex artery motion recorded by coronary angiography.. Scandinavian Cardiovascular Journal, 37 (5), 259-265.
Thunberg, P. , Wigström, L. , Ebbers, T. & Karlsson, M. (2002). Correction for displacement artifacts in 3D phase contrast imaging. Journal of Magnetic Resonance Imaging, 16 (5), 591-597.
Thunberg, P. , Wigström, L. , Wranne, B. , Engvall, J. & Karlsson, M. (2000). Correction for acceleration-induced displacement artifacts in phase contrast imaging. Magnetic Resonance in Medicine, 43 (5), 734-738.

Conference papers

Edebol-Carlman, H. , Rode, J. , König, J. , Hutchinson, A. , Repsilber, D. , Kiselev, A. , Thunberg, P. , Lathrop Stern, L. & et al. (2019). Evaluating the effects of probiotic intake on brain activity during an emotional attention task and blood markers related to stress in healthy subjects. Paper presented at Mind, Mood & Microbes, 2nd International Conference on Microbiota-Gut-Brain Axis, Amsterdam, The Netherlands, 17-18 January, 2019.
Andersén, C. , Rydén, T. , Thunberg, P. & Heydorn Lagerlöf, J. (2019). Presults for the aI-Brachy study: Utilizing deep learning for needle reconstruction in prostate brachytherapy. Paper presented at Nationellt möte om sjukhusfysik 2019, Falkenbergs strandbad, Sverige, 12-15 november, 2019..
Lidén, M. , Jendeberg, J. , Längkvist, M. , Loutfi, A. & Thunberg, P. (2018). Discrimination between distal ureteral stones and pelvic phleboliths in CT using a deep neural network: more than local features needed. Paper presented at European Congress of Radiology (ECR) 2018, Vienna, Austria, 28 Feb.-4 Mar., 2018.
Andersson, K. M. , Vallhagen Dahlgren, C. , Reizenstein, J. , Ahnesjö, A. & Thunberg, P. (2017). Impact of Metal Artifacts on Proton Therapy Treatment Planning Accuracy. In: 56th Annual Meeting of the Particle Therapy Cooperative Group (PTCOG) 8-13 May 2017 Proceedings. Paper presented at 56th Annual Meeting of the Particle Therapy Cooperative Group (PTCOG 56), Yokohama, Japan, May 8-13, 2017 (pp. 68-68). The Particle Therapy Cooperative Group.
Jorstig, S. , Emilsson, K. , Waldenborg, M. , Lidén, M. , Wodecki, M. & Thunberg, P. (2016). Distance and area measurement of the right atrium and ventricle by echocardiography and cardiac magnetic resonance imaging: do we measure the same thing?. Paper presented at 19th Annual Meeting of the European Association of Echocardiography, Seville, Spain, December 2-5, 2015 (pp. 214-214). Oxford University Press.
Rudner, M. , Dahlström, Ö. , Skagerstrand, Å. , Alvinzi, L. , Thunberg, P. , Sörqvist, P. , Rönnberg, J. , Lyxell, B. & et al. (2016). Does working memory training improve speech recognition in noise?. Paper presented at Neural Plasticity Workshop: Insights from Deafness and Language, London, UK, June 3-4, 2016.
Funk, E. , Anderzen-Carlsson, A. & Thunberg, P. (2016). Patient participation in MRI: patient experiences and image quality addressing breath-hold acquisitions. In: ECR 2016 Book of Abstracts B. Scientific Sessions and Clinical Trials in Radiology. Paper presented at European Congress of Radiology (ECR 2016), Vienna, Austria, March, 2-6, 2016 (pp. S379-S379). Springer.
Skagerstrand, Å. , Lyxell, B. , Thunberg, P. , Sörqvist, P. , Lundin, M. , Johnsrude, I. , Rudner, M. , Rönnberg, J. & et al. (2015). Cognitive training and effects on speech-in noise performance in normal hearing and hearing impaired individuals. In: CHSCOM2015 Abstract book. Paper presented at Third international conference on cognitive hearing science for communication (CHSCOM2015), Linköping, Sweden, June 14-17, 2015 (pp. 127-127). Linköping University Electronic Press.
Andersson, K. M. , Norrman, E. & Thunberg, P. (2015). Metal Artifacts in CT Imaging of Hip Prostheses: Evaluation of Metal Artifact Reduction Techniques Provided by Four Vendors. Paper presented at Radiological Society of North America (RSNA 2015), Chicago, USA, November 29 - December 4, 2015.
Funk, E. , Thunberg, P. & Anderzen-Carlsson, A. (2013). Instructed or patient-initiated breath holds: what do the patients prefer?. Paper presented at European Congress of Radiology (ECR 2013), Vienna, Austria, March 7-11, 2013.


Andersson, K. M. , Vallhagen Dahlgren, C. , Reizenstein, J. , Cao, Y. , Ahnesjö, A. & Thunberg, P. CT image metal artifacts in proton radiotherapy treatment planning : evaluation of two commercial correction algorithms.
Jorstig, S. , Waldenborg, M. , Lidén, M. & Thunberg, P. Right ventricular ejection fraction measurements using twodimensional echocardiography.