Lasse Riis Østergaard

Associate Professor, PhD

  • Fredrik Bajers Vej 7, C1-212

    9220 Aalborg Ø

    Denmark

19962019
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Research Output 1997 2019

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Article in proceeding
2019
1 Citation (Scopus)

Prediction of Alzheimer’s disease in mild cognitive impairment using sulcal morphology and cortical thickness

Plocharski, M. & Østergaard, L. R., 2019, World Congress on Medical Physics and Biomedical Engineering, 3-8 June 2018, Prague, Czech Republic. Lhotska, L., Sukupova, L., Lacković, I. & Ibbott, G. S. (eds.). 1 ed. Springer, Vol. 68. p. 69-74 6 p. (IFMBE Proceedings, Vol. 68(1)).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Alzheimer Disease
Occipital Lobe
Entorhinal Cortex
Gyrus Cinguli
Frontal Lobe

Sulcal and Cortical Features for Classification of Alzheimer’s Disease and Mild Cognitive Impairment

Plocharski, M., Østergaard, L. R. & The Alzheimer’s Disease Neuroimaging Initiative, 2019, SCIA 2019: Scandinavian Conference on Image Analysis. Springer, p. 427-438 12 p. (Lecture Notes in Computer Science, Vol. 11482).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2018

Accurate measurement of airway morphology on chest CT images

Nardelli, P., Lanng, M. B., Møller, C. B., Andersen, A-S. H., Jørgensen, A. S., Østergaard, L. R. & Estépar, R. S. J., 2018, Image Analysis for Moving Organ, Breast, and Thoracic Images: Third International Workshop, RAMBO 2018, Fourth International Workshop, BIA 2018, and First International Workshop, TIA 2018, Held in Conjunction with MICCAI 2018, Granada, Spain, September 16 and 20, 2018, Proceedings. Springer, p. 335-347 (Lecture Notes in Computer Science, Vol. 11040).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Exploiting multiple color representations to improve colon cancer detection in whole slide H&E stains

Jørgensen, A. S., Emborg, J., Røge, R. & Østergaard, L. R., 2018, Computational Pathology and Ophthalmic Medical Image Analysis: First International Workshop, COMPAY 2018, and 5th International Workshop, OMIA 2018, Held in Conjunction with MICCAI 2018, Granada, Spain, 16-20 September 2018, Proceedings. Springer, p. 61-68 (Lecture Notes in Computer Science, Vol. 11039).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2017

Computer aided detection of prostate cancer on biparametric MRI using a quadratic discriminant model

Jensen, C., Korsager, A. S., Boesen, L., Østergaard, L. R. & Carl, J., 2017, Image Analysis: 20th Scandinavian Conference, SCIA, 12-14 June 2017, Tromsø, Norway, Proceedings, Part I . Sharma, P. & Bianchi, F. M. (eds.). Springer, p. 161-171 (Lecture Notes in Computer Science; No. 10269).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

1 Citation (Scopus)

Semi-automatic method for intervertebral kinematics measurement in the cervical spine

Nøhr, A. K., Pilgaard, L. P., Hansen, B. D., Nedergaard, R., Haavik, H., Lindstrøm, R., Plocharski, M. & Østergaard, L. R., 2017, Image Analysis: 20th Scandinavian Conference, SCIA, 12-14 June 2017, Tromsø, Norway, Proceedings, Part II. Sharma, P. & Bianchi, F. M. (eds.). Springer, p. 302-313 (Lecture Notes in Computer Science; No. 10270).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2015
5 Citations (Scopus)

Classification of Alzheimer's disease from MRI using sulcal morphology

Andersen, S. K., Jakobsen, C. E., Pedersen, C. H., Rasmussen, A. M., Plocharski, M. & Østergaard, L. R., 2015, Image Analysis: 19th Scandinavian Conference, SCIA 2015, Copenhagen, Denmark, June 15-17, 2015. Proceedings. Paulsen, R. R. & Pedersen, K. S. (eds.). Springer, p. 103-113 (Lecture Notes in Computer Science; No. 9127).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2012
3 Citations (Scopus)

Semi-automatic vessel tracking and segmentation using epicardial ultrasound in bypass surgery

Jørgensen, A. S., Schmidt, S., Staalsen, N-H. & Østergaard, L. R., 2012, 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, IEEE EMBS, EMBC, 28 August-1 September 2012, San Diego, CA, USA. IEEE Press, p. 2331-2334 (IEEE Engineering in Medicine and Biology Society. Conference Proceedings).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2011

Airway tree segmentation for optimal stent placement in image-guided radiotherapy

Stephansen, U. L., Horup, R. W., Gram, M., Olesen, J. T., Hansen, J. C., Korsager, A. S. & Østergaard, L. R., 2011, The Fourth International Workshop on Pulmonary Image Analysis, 18 September 2011, Toronto, Canada. Beichel, R., de Bruijne, M., van Ginneken, B., Kabus, S., Kiraly, A., Kuhnigk, J-M., McClelland, J., Mori, K., van Rikxoort, E. & Rit, S. (eds.). CreateSpace, p. 135-146

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

BEaST: brain extraction using multiresolution nonlocal segmentation

Eskildsen, S. F., Coupé, P., Leung, K. K., Fonov, V., Guizard, N., Wassef, S. N., Østergaard, L. R. & Collins, D. L., 2011, Proceedings of the 2011 MICCAI Workshop on Multi-Atlas Labeling and Statistical Fusion, 22 September 2011, Canada. Medical Image Analysis and Statistical Interpretation Lab, School of Engineering, Vanderbilt University, 12 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2010
1 Citation (Scopus)

Rigid registration of 3D ultrasound and MRI: comparing two approaches on nine tumor cases

Mercier, L., Fonov, V., del Maestro, R. F., Petrecca, K., Østergaard, L. R. & Collins, D. L., 2010, Brain, Body and Machine: Proceedings of an International Symposium on the Occasion of the 25th Anniversary of the McGill University Centre for Intelligent Machines. Angeles, J., Boulet, B., Clark, J. J., Kövecses, J. & Siddigi, K. (eds.). Springer, Vol. 83. p. 33-43 (Advances in Intelligent and Soft Computing, Vol. 83).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2009

DNA-based Bayesian inference and analysis of bacterial antibiotic resistance

Hejlesen, O. K., Kæseler, N., Sanden, L. R., Østergaard, L. R. & Tsafnat, G., 2009, SHI2009 Proceedings: 7th Scandinavian Conference on Health Informatics, 24-26 August 2009, Arendal, Norway. Fensli, R. & Dale, J. G. (eds.). TAPIR Akademisk Forlag, p. 18-22

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2008
9 Citations (Scopus)

Evaluation of five algorithms for mapping brain cortical surfaces

Eskildsen, S. F. & Østergaard, L. R., 2008, Proceedings of the 2008 XXI Brazilian Symposium on Computer Graphics and Image Processing. IEEE Computer Society Press, p. 137-144

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2007
5 Citations (Scopus)

Early detection of AD using cortical thickness measurements

Spjuth, M., Gravesen, F. H., Eskildsen, S. F. & Østergaard, L. R., 2007, Medical Imaging 2007: Image Processing. SPIE - International Society for Optical Engineering, p. 65120L/1-65120L/9

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Numerical Dosimetry for the PET Study of the Cerebrometabolic Effects of Radiation from Cellphones

Franek, O., Pedersen, G. F., Andersen, J. B., Eskildsen, S. F., Østergaard, L. R., Møller, A. & Gjedde, A., 2007, Book of abstracts of EBEA 2007. EBEA, p. 107 1 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

7 Citations (Scopus)

Quantitative comparison of two cortical surface extraction methods using MRI phantoms

Eskildsen, S. F. & Østergaard, L. R., 2007, Medical Image Computing and Computer-Assisted Intervention, MICCAI 2007: 10th International Conference, 29 October-2 November 2007, Brisbane, Australia. Proceedings. Ayache, N., Ourselin, S. & Maeder, A. (eds.). IEEE Computer Society Press, Vol. 1. p. 409-416 (Lecture Notes in Computer Science; No. 4791).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2006
25 Citations (Scopus)

Active surface approach for extraction of the human cerebral cortex from MRI

Eskildsen, S. F. & Østergaard, L. R., 2006, Medical Image Computing and Computer-Assisted Intervention, MICCAI 2006: 9th International Conference, 1-6 October 2006, Copenhagen, Denmark. Proceedings, Part II. Larsen, R., Nielsen, M. & Sporring, J. (eds.). IEEE Computer Society Press, Vol. 2. p. 823-830 (Lecture Notes in Computer Science; No. 4191).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2005
7 Citations (Scopus)

Extraction of the cerebral cortical boundaries from MRI for measurement of cortical thickness

Eskildsen, S. F., Uldahl, M. & Østergaard, L. R., 2005, Medical Imaging 2005: Image Processing. Fitzpatrick, J. M. & Reinhardt, J. M. (eds.). p. 1400-1410

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2002

Simulating the puncture of the human ventricle

Cros, O., Volden, M., Flaaris, J. J., Brix, L. C., Pedersen, C. F., Hansen, K. V., Larsen, O. V., Østergaard, L. R. & Haase, J., 2002, Digital upgrades : applying Moore's Law to health.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch

2001
4 Citations (Scopus)

Knowledge-based extraction of cerebral vasculature from anatomical MRI

Østergaard, L. R., Larsen, O. V., Haase, J., Meer, F. V., Evans, A. C. & Collins, D. L., 2001, Medical Imaging 2001 : Image Processing, 19-22 February 2001, San Diego, CA, USA. 27 ed. SPIE - International Society for Optical Engineering, Vol. 2. p. 170-183 (Progress in Biomedical Optics and Imaging; No. 27, Vol. 2). (Proceedings of SPIE; No. 4322, Vol. 1).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch

Surface modeling of blood vessels based on 3D medical images

Baun, T., Flaaris, J. J., Volden, M., Haase, J., Larsen, O. V. & Østergaard, L. R., 2001, Proceedings of the International Federation for Medical & Biological Engineering, IFMBE, IX Mediterranean Conference on Medical and Biological Engineering and Computing, Medicon 2001, part 2, 12-15 June 2001, Pula, Croatia. Magjarevic, R., Tonkovic, S., Bilas, V. & Lackovic, I. (eds.). University of Zagreb, p. 969-973

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch

30 Citations (Scopus)

The Virtual Brain Project: development of a neurosurgical simulator

Larsen, O. V., Haase, J., Østergaard, L. R., Hansen, K. V. & Nielsen, H., 2001, Medicine Meets Virtual Reality 2001, 24-27 January 2001, Newport Beach, CA, USA: Studies in Health Technology and Informatics. Westwood, J. D., Hoffman, H. M., Mogel, G. T., Stredney, D. & Robb, R. A. (eds.). 81 ed. IOS Press, p. 256-262

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch

2000

Extraction of cerebral vasculature from MRI

Østergaard, L. R., Larsen, O. V., Goualher, G. L., Evans, A. C. & Collins, D. L., 2000, 9th Danish Conference on Pattern Recognition and Image Analysis, August 2000, Aalborg, Denmark.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch

1999

3D localisation from DSA images using the Leksell stereotactic frame

Lind, J., Østergaard, L. R., Larsen, O. V., Nielsen, H., Bartholdy, N. J. & Haase, J., 1999, Proceedings of the 11th Scandinavian Conference on Image Analysis, SCIA'99, 7-11 June 1999, Sdr. Strømfjord, Greenland. Vol. Vol. 2. p. 849-856

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch

1998
4 Citations (Scopus)

Applying voting to segmentation of MR images

Østergaard, L. R. & Larsen, O. V., 1998, Advances in Pattern Recognition : Joint IAPR International Workshops SSPR'98 and SPR'98, August 1998, Sydney, Australia. p. 795-804

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch

The virtual brain: a neurosurgical simulator of year 2000

Haase, J., Østergaard, L. R., Lind, J., Hansen, K. V., Nielsen, H. & Larsen, O. V., 1998, 49th Jahrestagung der Deutschen Gesellschaft für Neurochirurgi, 12-16 juni 1998, Hannover, Deutschland.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch

1997

3D localisation system for localisation of malformations in human brain

Lind, J., Østergaard, L. R., Larsen, O. V., Nielsen, H., Bartholdy, N. J. & Haase, J., 1997, Den 6. Danske Konference i Mønstergenkendelse og Billedanalyse, August 1997.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch