Ketil Oppedal
Førsteamanuensis i anvendt kunstig intelligens
Kontakt
E-post: ketil.oppedal@uis.no
Rom: KE E-444
Organisasjonsenhet
Det teknisk-naturvitenskapelige fakultet
Institutt for data- og elektroteknologi
Publikasjoner
Vitenskapelige publikasjoner
Habich, Annegret; Oltra, Javier; Schwarz, Christopher G.; Przybelski, Scott A.; Oppedal, Ketil; Inguanzo, Anna; Blanc, Frédéric; Lemstra, Afina W.; Hort, Jakub; Westman, Eric; Segura, Barbara; Junque, Carme; Lowe, Val J.; Boeve, Bradley F.; Aarsland, Dag; Dierks, Thomas; Kantarci, Kejal; Ferreira, Daniel
(2024)
Grey matter networks in women and men with dementia with Lewy bodies.NPJ Parkinson's Disease.
ISSN 2373-8057.
Volum 10.
Hefte 1.
Brüggemann, Heinrich; Paulsen, Aksel; Oppedal, Ketil; Grasmair, Markus; Hömberg, Dietmar Josef
(2024)
Reliably calibrating X-ray images required for preoperative planning of THA using a device-adapted magnification factor.PLOS ONE.
ISSN 1932-6203.
Volum 19.
Hefte 8.
Rennie, Anna; Ekman, Urban; Shams, Sara; Ryden, Lina; Samuelsson, Jessica; Zettergren, Anna; Kern, Silke; Oppedal, Ketil; Blanc, Frederic; Hort, Jakub; Garcia-Ptacek, Sara; Antonini, Angelo; Lemstra, Afina W; Padovani, Alessandro; Kramberger, Milica Gregoric; Rektorová, Irena; Walker, Zuzana; Snædal, Jón; Pardini, Matteo; Taylor, John-Paul; Bonanni, Laura; Granberg, Tobias; Aarsland, Dag; Skoog, Ingmar; Wahlund, Lars-Olof; Kivipelto, Miia; Westman, Eric; Ferreira, Daniel
(2024)
Cerebrovascular and Alzheimer's disease biomarkers in dementia with Lewy bodies and other dementias.Brain Communications.
ISSN 2632-1297.
Volum 6.
Hefte 5.
Fernandez Quilez, Alvaro; Andersen, Christoffer Gabrielsen; Eftestøl, Trygve Christian; Kjosavik, Svein Reidar; Oppedal, Ketil
(2023)
3D Masked Modelling Advances Lesion Classification in Axial T2w Prostate MRI.Proceedings of the Northern Lights Deep Learning Workshop.
Volum 4.
DOI: 10.7557/18.6787
Inguanzo, Anna; Poulakis, Konstantinos; Mohanty, Rosaleena; Schwarz, Christopher G.; Przybelski, Scott A.; Diaz-Galvan, Patricia; Lowe, Val J.; Boeve, Bradley F.; Lemstra, Afina W.; van de Beek, Marleen; van der Flier, Wiesje; Barkhof, Frederik; Blanc, Frederic; Loureiro de Sousa, Paulo; Philippi, Nathalie; Cretin, Benjamin; Demuynck, Catherine; Nedelska, Zuzana; Hort, Jakub; Segura, Barbara; Junque, Carme; Oppedal, Ketil; Aarsland, Dag; Westman, Eric; Kantarci, Kejal; Ferreira, Daniel
(2023)
MRI data-driven clustering reveals different subtypes of Dementia with Lewy bodies.NPJ Parkinson's Disease.
ISSN 2373-8057.
Volum 9.
Oltra, Javier; Habich, Annegret; Schwarz, Christopher G.; Nedelska, Zuzana; Przybelski, Scott A.; Inguanzo, Anna; Diaz-Galvan, Patricia; Lowe, Val J.; Oppedal, Ketil; Gonzalez Velez, Maria Camila; Philippi, Nathalie; Blanc, Frederic; Barkhof, Frederik; Lemstra, Afina W.; Hort, Jakub; Padovani, Alessandro; Rektorova, Irena; Bonanni, Laura; Massa, Federico; Kramberger, Milica G.; Taylor, John-Paul; Snædal, Jon G.; Walker, Zuzana; Antonini, Angelo; Dierks, Thomas; Segura, Barbara; Junque, Carme; Westman, Eric; Boeve, Bradley F.; Aarsland, Dag; Kantarci, Kejal; Ferreira, Daniel
(2023)
Sex differences in brain atrophy in dementia with Lewy bodies.Alzheimer's & Dementia.
ISSN 1552-5260.
DOI: 10.1002/alz.13571
Fernandez Quilez, Alvaro; Eftestøl, Trygve Christian; Kjosavik, Svein Reidar; Goodwin, Morten; Oppedal, Ketil
(2022)
Contrasting Axial T2W MRI for Prostate Cancer Triage: A Self-Supervised Learning Approach.IEEE International Symposium on Biomedical Imaging.
ISSN 1945-7928.
Fernandez Quilez, Alvaro; Eftestøl, Trygve Christian; Kjosavik, Svein Reidar; Goodwin, Morten; Oppedal, Ketil
(2022)
Multi-Planar T2W MRI for an Improved Prostate Cancer Lesion Classification.IEEE International Symposium on Biomedical Imaging.
ISSN 1945-7928.
Fernandez Quilez, Alvaro; Eftestøl, Trygve Christian; Kjosavik, Svein Reidar; Oppedal, Ketil
(2022)
Learning to triage by learning to reconstruct: a generative self-supervised approach for prostate cancer based on axial T2w MRI.Proceedings of SPIE, the International Society for Optical Engineering.
ISSN 0277-786X.
Volum 12033.
DOI: 10.1117/12.2610623
Fernandez Quilez, Alvaro; Parvez, Omer; Eftestøl, Trygve Christian; Kjosavik, Svein Reidar; Oppedal, Ketil
(2022)
Improving prostate cancer triage with GAN-based synthetically generated prostate ADC MRI.Proceedings of SPIE, the International Society for Optical Engineering.
ISSN 0277-786X.
Volum 12033.
DOI: 10.1117/12.2606557
Fernandez Quilez, Alvaro; Ullah, Habib; Eftestøl, Trygve Christian; Kjosavik, Svein Reidar; Oppedal, Ketil
(2022)
One class to rule them all: detection and classification of prostate tumors presence in bi-parametric MRI based on auto-encoders.Proceedings of SPIE, the International Society for Optical Engineering.
ISSN 0277-786X.
Volum 12033.
DOI: 10.1117/12.2602884
Minne, Petter; Fernandez Quilez, Alvaro; Aarsland, Dag; Ferreira, Daniel; Westman, Eric; Lemstra, Afina W.; Ten Kate, Mara; Padovani, Alessandro; Rektorova, Irene; Bonnani, Laura; Nobili, Flavio Mariano; Kramberger, Milica G.; Taylor, John-Paul; Hort, Jakub; Snædal, Jon; Blanc, Frederic; Antonini, Angelo; Oppedal, Ketil
(2022)
A study on 3D classical versus GAN-based augmentation for MRI brain image to predict the diagnosis of dementia with Lewy bodies and Alzheimer's disease in a European multi-center study.Proceedings of SPIE, the International Society for Optical Engineering.
ISSN 0277-786X.
Volum 12033.
DOI: 10.1117/12.2611339
Abdelnour, Carla; Ferreira, Daniel; van de Beek, Marleen; Cedres, Nira; Oppedal, Ketil; Cavallin, Lena; Blanc, Frédéric; Bousiges, Olivier; Wahlund, Lars-Olof; Pilotto, Andrea; Padovani, Alessandro; Boada, Mercè; Pagonabarraga, Javier; Kulisevsky, Jaime; Aarsland, Dag; Lemstra, Afina W.; Westman, Eric
(2022)
Parsing heterogeneity within dementia with Lewy bodies using clustering of biological, clinical, and demographic data.Alzheimer's Research & Therapy.
ISSN 1758-9193.
Volum 14.
Borda, Miguel Germán; Ferreira, Daniel; Selnes, Per; Tovar-Rios, Diego Alejandro; Jaramillo-Jiménez, Alberto; Kirsebom, Bjørn-Eivind; Garcia-Cifuentes, Elkin; Dalaker, Turi Olene; Oppedal, Ketil; Sønnesyn, Hogne; Fladby, Tormod; Aarsland, Dag
(2022)
Timed Up and Go in People with Subjective Cognitive Decline Is Associated with Faster Cognitive Deterioration and Cortical Thickness.Dementia and Geriatric Cognitive Disorders.
ISSN 1420-8008.
Volum 51.
Hefte 1.
s.63-72.
DOI: 10.1159/000522094
Aarsland, Dag; Khalifa, Khadija; Bergland, Anne Katrine; Sønnesyn, Hogne; Oppedal, Ketil; Holteng, Lise Birgitte Austbø; Oesterhus, Ragnhild ; Nakling, Arne; Jarholm, Jonas Alexander; De Lucia, Chiara; Fladby, Tormod; Brooker, Helen; Dalen, Ingvild; Ballard, Clive
(2022)
A Randomised Placebo-Controlled Study of Purified Anthocyanins on Cognition in Individuals at Increased Risk for Dementia.The American journal of geriatric psychiatry.
ISSN 1064-7481.
Volum 31.
Hefte 2.
s.141-151.
Jaramillo-Jiménez, Alberto; Melvær, Giil Lasse; Tovar-Rios, Diego Alejandro; Borda, Miguel Germán; Ferreira, Daniel; Brønnick, Kolbjørn Kallesten; Oppedal, Ketil; Aarsland, Dag
(2021)
Association Between Amygdala Volume and Trajectories of Neuropsychiatric Symptoms in Alzheimer’s Disease and Dementia With Lewy Bodies.Frontiers in Neurology.
ISSN 1664-2295.
Volum 12.
Fernandez Quilez, Alvaro; Larsen, Steinar Valle; Goodwin, Morten; Gulsrud, Thor Ole; Kjosavik, Svein Reidar; Oppedal, Ketil
(2021)
Improving prostate whole gland segmentation in T2-weighted MRI with synthetically generated data. I: 2021 IEEE 18th International Symposium on Biomedical Imaging (ISBI).IEEE conference proceedings.
ISBN 9781665412469.
s.1915-1919.
Jalbrzikowski, Maria; Hayes, Rebecca A.; Wood, Stephen J.; Dorte, Nordholm; Zhou, Juan H; Fusar-Poli, Paolo; Uhlhaas, Peter J.; Takahashi, Tsutomu; Sugranyes, Gisela; Kwak, Yoo Bin; Mathalon, Daniel H.; Katagiri, Naoyuki; Hooker, Christine I.; Smigielski, Lukasz; Colibazzi, Tiziano; Via, Esther; Tang, Jinsong; Koike, Shinsuke; Rasser, Paul E.; Michel, Chantal; Lebedeva, Irina; Hegelstad, Wenche; Fuente-Sandoval, Camilo de la; Waltz, James A.; Mizrahi, Romina; Corcoran, Cheryl M.; Resch, Franz; Tamnes, Christian Krog; Haas, Shalaila S.; Lemmers-Jansen, Imke L. J.; Agartz, Ingrid; Allen, Paul; Amminger, Paul; Andreassen, Ole; Møller, Paul; Oppedal, Ketil; Røssberg, Jan Ivar; Værnes, Tor Gunnar; Velakoulis, D; Venegoni, Gloria D.; Vinogradov, Sophia; Wenneberg, Christina; Westlye, Lars Tjelta; Yamasue, Hidenori; Yuan, Liu; Yung, Alison R.; van Amelsvoort, Therese; Turner, Jessica A.; Van Erp, Theo G.M.; Thompson, Paul M.; Hernaus, Dennis
(2021)
Association of Structural Magnetic Resonance Imaging Measures With Psychosis Onset in Individuals at Clinical High Risk for Developing Psychosis: An ENIGMA Working Group Mega-analysis.JAMA psychiatry.
ISSN 2168-6238.
Volum 78.
Hefte 7.
s.753-766.
Borda, Miguel Germán; Bani Hassan, Ebrahim; Weon, JangHo; Wakabayashi, Hidetaka; Tovar-Rios, Diego Alejandro; Oppedal, Ketil; Aarsland, Dag; Duque, Gustavo
(2021)
Muscle volume and intramuscular fat of the tongue evaluated with MRI predict malnutrition in people living with dementia: a 5-year follow-up study.The journals of gerontology. Series A, Biological sciences and medical sciences.
ISSN 1079-5006.
Volum 77.
Hefte 2.
s.228-234.
Ferreira, Daniel; Nedelska, Zuzana; Graff-Radford, Jonathan; Przybelski, Scott A.; Lesnick, Timothy G.; Schwarz, Christopher G.; Botha, Hugo; Senjem, Matthew L.; Fields, Julie A.; Knopman, David S.; Savica, Rodolfo; Ferman, Tanis J.; Graff-Radford, Neill R.; Lowe, Val J.; Jack, Clifford R.; Petersen, Ronald C.; Lemstra, Afina W.; van de Beek, Marleen; Barkhof, Frederik; Blanc, Frédéric; Loureiro de Sousa, Paulo; Philippi, Nathalie; Cretin, Benjamin; Demuynck, Catherine; Hort, Jakub; Oppedal, Ketil; Boeve, Bradley F.; Aarsland, Dag; Westman, Eric; Kantarci, Kejal
(2021)
Cerebrovascular disease, neurodegeneration, and clinical phenotype in dementia with Lewy bodies.Neurobiology of Aging.
ISSN 0197-4580.
Volum 105.
s.252-261.
Borda, Miguel Germán; Aarsland, Dag; Tovar-Rios, Diego Alejandro; Melvær, Giil Lasse; Ballard, Clive; Gonzalez Velez, Maria Camila; Brønnick, Kolbjørn Kallesten; Alves, Guido Werner; Oppedal, Ketil; Sønnesyn, Hogne; Vik-Mo, Audun Osland
(2020)
Neuropsychiatric symptoms and functional decline in Alzheimerʼs disease and Lewy body dementia.Journal of The American Geriatrics Society.
ISSN 0002-8614.
Volum 68.
Hefte 10.
s.2257-2263.
DOI: 10.1111/jgs.16709
Borda, Miguel Germán; Jaramillo-Jiménez, Alberto; Tovar-Rios, Diego Alejandro; Ferreira, Daniel; Garcia-Cifuentes, Elkin; Vik-Mo, Audun Osland; Aarsland, Vera Vårin Birkemo; Aarsland, Dag; Oppedal, Ketil
(2020)
Hippocampal subfields and decline in activities of daily living in Alzheimer’s disease and dementia with Lewy bodies.Neurodegenerative Disease Management.
ISSN 1758-2024.
Volum 10.
Hefte 6.
s.357-367.
Khalifa, Khadija; Bergland, Anne Katrine; Sønnesyn, Hogne; Oppedal, Ketil; Oesterhus, Ragnhild ; Dalen, Ingvild; Larsen, Alf Inge; Fladby, Tormod; Brooker, Helen; Wesnes, Keith A.; Ballard, Clive; Aarsland, Dag
(2020)
Effects of purified anthocyanins in people at risk for dementia: Study protocol for a phase II randomized controlled trial.Frontiers in Neurology.
ISSN 1664-2295.
Volum 11:916.
s.1-10.
Mårtensson, Gustav; Ferreira, Daniel; Granberg, Tobias; Cavallin, Lena; Oppedal, Ketil; Padovani, Alessandro; Rektorova, Irena; Bonanni, Laura; Pardini, Matteo; Kramberger, Milica Gregoric; Taylor, John-Paul; Hort, Jakub; Snædal, Jón G.; Kulisevsky, Jaime; Blanc, Frederic; Antonini, Angelo; Mecocci, Patrizia; Vellas, Bruno; Tsolaki, Magda; Kloszewska, Iwona; Soininen, Hilkka; Lovestone, Simon; Simmons, Andrew; Aarsland, Dag; Westman, Eric
(2020)
The reliability of a deep learning model in clinical out-of-distribution MRI data: A multicohort study.Medical Image Analysis.
ISSN 1361-8415.
Volum 66.
Abdelnour, Carla; Ferreira, Daniel; Oppedal, Ketil; Cavallin, Lena; Bousiges, Olivier; Wahlund, Lars Olof; Hort, Jakub; Nedelska, Zuzana; Padovani, Alessandro; Pilotto, Andrea; Bonanni, Laura; Kramberger, Milica Gregoric; Boada, Mercè; Westman, Eric; Pagonabarraga, Javier; Kulisevsky, Jaime; Blanc, Frédéric; Aarsland, Dag
(2020)
The combined effect of amyloid-β and tau biomarkers on brain atrophy in dementia with Lewy bodies.NeuroImage: Clinical.
ISSN 2213-1582.
Volum 27.
Ferreira, Daniel; Przybelski, Scott A.; Lesnick, Timothy G.; Lemstra, Afina W.; Londos, Elisabet; Blanc, Frederic; Nedelska, Zuzana; Schwarz, Christopher G.; Graff-Radford, Jonathan; Senjem, Matthew L.; Fields, Julie A.; Knopman, David S.; Savica, Rodolfo; Ferman, Tanis J.; Graff-Radford, Neill R.; Lowe, Val J.; Jack, Clifford R.; Petersen, Ronald C.; Mollenhauer, Brit; Garcia-Ptacek, Sara; Abdelnour, Carla; Hort, Jakub; Bonanni, Laura; Oppedal, Ketil; Kramberger, Milica G.; Boeve, Bradley F.; Aarsland, Dag; Westman, Eric; Kantarci, Kejal
(2020)
β-Amyloid and tau biomarkers and clinical phenotype in dementia with Lewy bodies.Neurology.
ISSN 0028-3878.
Volum 95.
Hefte 24.
s.e3257-e3268.
Giri, Charul; Goodwin, Morten; Oppedal, Ketil
(2020)
Deep 3D Convolution Neural Network for Alzheimer’s Detection. I: Machine Learning, Optimization, and Data Science.Springer.
ISBN 978-3-030-64582-3.
s.347-358.
Oppedal, Ketil; Ferreira, Daniel; Cavallin, Lena; Lemstra, Afina W.; Ten Kate, Mara; Padovani, Alessandro; Rektorova, Irena; Bonanni, Laura; Wahlund, Lars-Olof; Engedal, Knut; Nobili, Flavio; Kramberger, Milica Gregoric; Taylor, John-Paul; Hort, Jakub; Snaedal, Jon; Blanc, Frédéric; Walker, Zuzana; Antonini, Angelo; Westman, Eric; Aarsland, Dag
(2018)
A signature pattern of cortical atrophy in dementia with Lewy bodies: A study on 333 patients from the European DLB consortium.Alzheimer's & Dementia.
ISSN 1552-5260.
Volum 15.
Hefte 3.
s.400-409.
Oppedal, Ketil; Engan, Kjersti; Eftestøl, Trygve Christian; Beyer, Mona K.; Aarsland, Dag
(2017)
Classifying Alzheimer's disease, Lewy body dementia, and normal controls using 3D texture analysis in magnetic resonance images.Biomedical Signal Processing and Control.
ISSN 1746-8094.
Volum 33.
s.19-29.
Oppedal, Ketil; Eftestøl, Trygve; Engan, Kjersti; Beyer, Mona K.; Aarsland, Dag
(2015)
Classifying dementia using local binary patterns from different regions in magnetic resonance images.International Journal of Biomedical Imaging.
ISSN 1687-4188.
Volum 2015.
DOI: 10.1155/2015/572567
Damangir, Soheil; Manzouri, Amirhossein; Oppedal, Ketil; Carlsson, Stefan; Firbank, Michael J.; Sønnesyn, Hogne; Tysnes, Ole-Bjørn; O'Brien, John T.; Beyer, Mona Kristiansen; Westman, Eric; Aarsland, Dag; Wahlund, Lars-Olof; Spulber, Gabriela
(2012)
Multispectral MRI segmentation of age related white matter changes using a cascade of support vector machines.Journal of the Neurological Sciences.
ISSN 0022-510X.
Volum 322.
Hefte 1-2.
s.211-216.
Soennesyn, Hogne; Oppedal, Ketil; Greve, Ole Jacob; Fritze, Friedrike; Auestad, Bjørn Henrik; Nore, Sabine; Beyer, Mona Kristiansen; Aarsland, Dag
(2012)
White Matter Hyperintensities and the Course of Depressive Symptoms in Elderly People with Mild Dementia.Dementia and Geriatric Cognitive Disorders Extra.
ISSN 1664-5464.
Volum 2.
Hefte 1.
s.97-111.
DOI: 10.1159/000335497
Oppedal, Ketil; Aarsland, Dag; Firbank, Michael J.; Sønnesyn, Hogne; Tysnes, Ole-Bjørn; O'Brien, J.T.; Beyer, Mona Kristiansen
(2012)
White Matter Hyperintensities in Mild Lewy Body Dementia.Dementia and Geriatric Cognitive Disorders Extra.
ISSN 1664-5464.
Hefte 2.
s.481-495.
DOI: 10.1159/000343480
Sønnesyn, Hogne; Nilsen, Dennis W.T.; Oppedal, Ketil; Greve, Ole Jacob; Beyer, Mona Kristiansen; Aarsland, Dag
(2012)
Relationship between orthostatic hypotension and white matter hyperintensity load in older patients with mild dementia.PLOS ONE.
ISSN 1932-6203.
Volum 7.
Hefte 12.
Oppedal, Ketil; Engan, Kjersti; Aarsland, Dag; Beyer, Mona Kristiansen; Tysnes, Ole-Bjørn; Eftestøl, Trygve
(2012)
Using local binary pattern to classify dementia in MRI. I: 2012 9th IEEE International Symposium on Biomedical Imaging: From Nano to Macro.
IEEE Signal Processing Society.
ISBN 978-1-4577-1858-8.
s.594-597.
Bøker og kapitler
Oppedal, Ketil; Aarsland, Dag; Beyer, Mona K.
(2016)
White Matter Lesions and Pattern Recognition in MRI of Neurodegenerative Dementia.
ISBN 978-82-7644-674-6.
Hefte 313.
Formidling
Fernandez Quilez, Alvaro; Tjersland, Trond; Podhraski, Andrijana; Gonzalez Velez, Maria Camila; Oppedal, Ketil
(2021)
EARLY DETECTION OF PSYCHOSIS IN PARKINSON’S DISEASE BASED ON NEUROPSYCHOLOGICAL TESTS AND DEMOGRAPHICS: A MACHINE LEARNING APPROACH.
International Conference on Alzheimer's&Parkinson's diseases;
2021-02-01 - 2021-02-05.
Fernandez-Quilez, Alvaro; Borda, Miguel Germán; Carreño, Gabriel Leonardo; Castellanos-Perilla, Nicolas; Sønnesyn, Hogne; Oppedal, Ketil; Kjosavik, Svein Reidar
(2020)
Prostate cancer screening and socioeconomic disparities in Mexican older adults.Salud pública de México (Impresa).
ISSN 0036-3634.
Volum 62.
Hefte 2.
s.121-122.
DOI: 10.21149/10960
Borda, Miguel Germán; Aarsland, Dag; Jaramillo, Alberto; Oppedal, Ketil
(2020)
Colombian consortium for the study of Lewy body dementia COL-DLB.Journal of the Neurological Sciences.
ISSN 0022-510X.
Oppedal, Ketil; Borda, Miguel Germán; Ferreira, Daniela; Westman, Eric; Årsland, Dag
(2019)
European DLB consortium: diagnostic and prognostic biomarkers in dementia with Lewy bodies, a multicenter international initiative.Neurodegenerative Diseases.
ISSN 1660-2854.
Larsen, Simen Norrheim; Eftestøl, Trygve Christian; Ferreira, Daniel; Westman, Eric; Abdelnour, Carla; Aarsland, Dag; Oppedal, Ketil
(2019)
Data-assisted differential diagnosis of dementia by deep neural networks .
Mohn Medical Imaging and Visualization Centre Conference;
2019-12-09 - 2019-12-10.
Oppedal, Ketil; Engan, Kjersti; Aarsland, Dag; Beyer, Mona Kristiansen; Tysnes, Ole-Bjørn; Eftestøl, Trygve
(2012)
Using local binary pattern to classify dementia in MRI.
IEEE International Symposium on Biomedical Imaging ;
2012-05-02 - 2012-05-05.