TobiasLasser

Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

Tobias Lasser

Image of Tobias Lasser Dr. Tobias Lasser
Akademischer Rat

E-Mail:
  
Phone: +49 89 289 19427
Address: Technische Universität München
Fakultät für Informatik, I-16
Boltzmannstr. 3
85748 Garching b. München
Germany
(getting there)
Room: MI 03.13.061



Research

  • Tomographic Reconstruction Methods
  • Navigated Molecular Probes
  • Nuclear Imaging
  • Optical Imaging
  • X-ray Imaging


Activities

Student projects


Teaching


Award


Short CV

  • 03/2011 - 12/2013:
    Technische Universität München - Munich, Germany and Helmholtz Zentrum München - Munich, Germany
    Research Scientist at the joint Chair for Computer Aided Medical Procedures / Helmholtz research group.

  • 10/1999 - 03/2006:
    Technische Universität München - Munich, Germany
    studies in Computer Science (minor Mathematics),
    studies in Mathematics (minor Computer Science).

    03/2006:
    Graduated as Diplom-Informatiker Univ. (equivalent to a M.Sc. in Computer Science), with distinction.
    Diplomarbeit (Master's Thesis): Fluorescence Molecular Tomography: using 3D surface reconstruction from contours for non-contact acquisitions and reconstructions.

    10/2008:
    Graduated as Diplom-Mathematiker Univ. (equivalent to a M.Sc. in Mathematics), with distinction.
    Diplomarbeit (Master's Thesis): Finiteness theorems for bound states of Schrödinger operators and application to negative ions.


Publications

2014
J. Gardiazabal, M. Esposito, P. Matthies, A. Okur, J. Vogel, S. Kraft, B. Frisch, T. Lasser, N. Navab
Towards personalized interventional SPECT-CT imaging
Proceedings of the 17th International Conference on Medical Image Computing and Computer Assisted Interventions (MICCAI), Boston, USA, September 2014 (bib)
P. Matthies, J. Gardiazabal, A. Okur, T. Lasser, N. Navab
Accuracy evaluation of interventional nuclear tomographic reconstruction using mini gamma cameras
The 7th Hamlyn Symposium on Medical Robotics, London, UK, July 2014 (bib)
P. Matthies, J. Gardiazabal, A. Okur, J. Vogel, T. Lasser, N. Navab
Mini Gamma Cameras for Intra-operative Nuclear Tomographic Reconstruction
Medical Image Analysis, 2014. (bib)
A. Fehringer, T. Lasser, I. Zanette, P. B. Noël, F. Pfeiffer
A versatile tomographic forward- and back-projection approach on multi-GPUs
Proceedings of SPIE 9034, 90344F (2014) (bib)
J. Vogel, A. Duliu, Y. Oyamada, J. Gardiazabal, T. Lasser, M. Ziai, R. Hein, N. Navab
Towards Robust Identification and Tracking of Nevi in Sparse Photographic Time Series
Proceedings of SPIE (2014) (bib)
M. Wieczorek, J. Vogel, T. Lasser
CampRecon - a software framework for linear inverse problems
Technical report, Technische Universität München, 2014. Available via mediatum. (bib)
A. Malecki, G. Potdevin, T. Biernath, E. Eggl, K. Willer, T. Lasser, J. Maisenbacher, J. Gibmeier, A. Wanner, F. Pfeiffer
X-Ray Tensor Tomography
Europhysics Letters 105(3):38002, 2014. (bib)
2013
P. Matthies, K. Sharma, A. Okur, J. Gardiazabal, J. Vogel, T. Lasser, N. Navab
First use of mini gamma cameras for intra-operative robotic SPECT reconstruction
Proceedings of the 16th International Conference on Medical Image Computing and Computer Assisted Interventions (MICCAI), Nagoya, Japan, September 2013 (bib)
J. Gardiazabal, T. Reichl, A. Okur, T. Lasser, N. Navab
First flexible robotic intra-operative nuclear imaging for image-guided surgery
Information Processing in Computer Assisted Interventions (IPCAI), Heidelberg, Germany, June 26, 2013 (bib)
A. Malecki, G. Potdevin, T. Biernath, E. Eggl, T. Lasser, J. Maisenbacher, J. Gibmeier, A. Wanner, F. Pfeiffer
Directional X-Ray Scattering Tomography
Proceedings of Fully3D, Lake Tahoe, USA, June 2013 (bib)
M. Wieczorek, J. Frikel, J. Vogel, F. Pfeiffer, L. Demaret, T. Lasser
Curvelet sparse regularization for differential phase-contrast X-ray imaging
Proceedings of Fully3D, Lake Tahoe, USA, June 2013. (bib)
J. Vogel, T. Lasser, J. Gardiazabal, N. Navab
Trajectory optimization for intra-operative nuclear tomographic imaging
Medical Image Analysis 17(7):723-731, 2013. (bib)
A. Okur, D. I. Shakir, P. Matthies, A. Hartl, M. Essler, S. I. Ziegler, T. Lasser, N. Navab
Freehand Tomographic Nuclear Imaging Using Tracked High-Energy Gamma Probes
Bildverarbeitung für die Medizin 2013 (BVM), Heidelberg, Germany, March 2013.
The original publication is available online at www.springerlink.com
(bib)
2012
J. Vogel, T. Reichl, J. Gardiazabal, N. Navab, T. Lasser
Optimization of Acquisition Geometry for Intra-operative Tomographic Imaging
Proceedings of the 15th International Conference on Medical Image Computing and Computer Assisted Interventions (MICCAI), Nice, France, October 2012 (bib)
D. I. Shakir, A. Okur, A. Hartl, P. Matthies, M. Essler, S. I. Ziegler, T. Lasser, N. Navab
Towards Intra-operative PET for Head and Neck Cancer: Lymph Node Localization Using High-energy Probes
Proceedings of the 15th International Conference on Medical Image Computing and Computer Assisted Interventions (MICCAI), Nice, France, October 2012 (bib)
S. Abdurahman, A. Jerebko, T. Mertelmeier, T. Lasser, N. Navab
Out-of-plane artifact reduction in tomosynthesis based on regression modeling and outlier detection
11th Intl. Workshop on Breast Imaging (IWDM 2012), Philadelphia, USA, July 2012 (bib)
A. Hartl, D. I. Shakir, R. Kojchev, N. Navab, S. I. Ziegler, T. Lasser
Freehand SPECT reconstructions using look up tables
SPIE Medical Imaging Conference, February 4 - February 9 2012, San Diego, USA (bib)
D. I. Shakir, A. Hartl, F. R. Schneider, J. Pulko, S. I. Ziegler, N. Navab, T. Lasser
Two new ad-hoc models of detection physics and their evaluation for navigated beta probe surface imaging
Proceedings of SPIE Visualization, Image-Guided Procedures, and Modeling Conference, San Diego, CA, USA, February 2012 (bib)
2011
C. Vetter, T. Lasser, T. Wendler, N. Navab
1D-3D Registration for Functional Nuclear Imaging
Medical Image Computing and Computer Assisted Intervention (MICCAI), Toronto, Canada, September 20-24 2011. (bib)
A. Hartl, T. Lasser, N. Navab, S. I. Ziegler
Impact of acquisition geometry and physical model on Freehand SPECT reconstructions
IEEE Medical Imaging Conference, October 23 - October 29 2011, Valencia, Spain (bib)
D. I. Shakir, T. Lasser, A. Drzezga, S. I. Ziegler, N. Navab
Evaluation of Navigated Beta-Probe Surface Imaging on a Realistic 3D Phantom
Proceedings of the IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS-MIC), Valencia, Spain, October 2011 (bib)
A. Safi, M. Baust, O. Pauly, V. Castaneda, T. Lasser, D. Mateus, N. Navab, R. Hein, M. Ziai
Computer-Aided Diagnosis of Pigmented Skin Dermoscopic Images
MICCAI Workshop on Medical Content-based Retrieval for Clinical Decision Support, Toronto, Canada, September 2011 (bib)
A. Malecki, T. Biernath, M. Bech, T. Lasser, G. Potdevin, F. Pfeiffer
Towards the Reconstruction of 3D Orientation Information from Direction-Sensitive X-Ray Projections
Proceedings of Fully3D, Potsdam, Germany, June 2011 (bib)
T. Lasser, S. I. Ziegler, N. Navab
Freehand SPECT in low uptake situations
Proceedings of SPIE 7961, 79611Z, 2011 (bib)
A. Safi, V. Castaneda, T. Lasser, D. Mateus, N. Navab
Manifold Learning for Dimensionality Reduction and Clustering of Skin Spectroscopy Data
Proceedings of SPIE (2011) (bib)
2010
T. Wendler, T. Lasser, S. I. Ziegler, K. Scheidhauer
Freehand SPECT/US: new approach for intraoperative hybrid imaging of sentinel nodes
Proceedings of the International Sentinel Node Society Meeting, Yokohama, Japan, 2010 (bib)
A. Safi, V. Castaneda, T. Lasser, N. Navab
Skin Lesions Classification with Optical Spectroscopy
5th International Workshop on Medical Imaging and Augmented Reality, Sep 2010, Beijing (bib)
A. Ehlerding, A. Schnelzer, T. Wendler, K. Herrmann, T. Lasser, K. Scheidhauer, O. Kutter, T. Schuster, M. Schwaiger, A. K. Buck, S. I. Ziegler, N. Navab, S. Paepke, M. Kiechle
Vorstellung der Pilotstudie zur 3D-Darstellung des Wächterlymphknotens bei Brustkrebspatientinnen mittels Freehand-SPECT
Proceedings of Annual Meeting of the German Society of Senology (DGS), Hamburg, Germany, Jul. 2010 (bib)
T. Wendler, K. Herrmann, A. Schnelzer, M. E. Martignoni, T. Lasser, J. Traub, A. Ehlerding, J. Saeckl, N. Navab, M. Kiechle, H. Friess, M. Schwaiger, S. I. Ziegler, A. K. Buck
Visione 3-D SPECT intraoperatoria: una nuova metodica per chirurgia radioguiata
Proceedings of SICO 2010, Milan, Italy, June 2010 (bib)
T. Wendler, K. Herrmann, A. Schnelzer, T. Lasser, J. Traub, O. Kutter, A. Ehlerding, K. Scheidhauer, T. Schuster, M. Kiechle, M. Schwaiger, N. Navab, S. I. Ziegler, A. K. Buck
First Demonstration of 3D Lymphatic Mapping using freehand SPECT
Proceedings of the International Conference on Sentinel Node Biopsy and Radioguided Head & Neck Surgery (SNB), Copenhagen, Denmark, May 2010 (bib)
A. K. Buck, A. Schnelzer, T. Wendler, K. Herrmann, T. Lasser, J. Traub, O. Kutter, T. Schuster, A. Ehlerding, K. Scheidhauer, M. Kiechle, N. Navab, S. I. Ziegler, M. Schwaiger
First demonstration of 3D lymphatic mapping in breast cancer using freehand SPECT
Proceedings of DGN Nuklearmedizin 2010, Leipzig, Germany, April 2010 (bib)
K. Herrmann, A. Schnelzer, T. Wendler, M. Hoyer, D. Weisgerber, T. Lasser, S. Paepke, M. E. Martignoni, M. Kiechle, N. Navab, S. I. Ziegler, M. Schwaiger
Evaluation of feasibility of freehand SPECT in the operating room
Proceedings of DGN Nuklearmedizin 2010, Leipzig, Germany, April 2010 (bib)
T. Wendler, K. Herrmann, A. Schnelzer, T. Lasser, J. Traub, O. Kutter, A. Ehlerding, K. Scheidhauer, T. Schuster, M. Kiechle, M. Schwaiger, N. Navab, S. I. Ziegler, A. K. Buck
First demonstration of 3-D lymphatic mapping in breast cancer using freehand SPECT
European Journal of Nuclear Medicine and Molecular Imaging, Springer Berlin/Heidelberg, 2010 Aug;37(8):1452-61. Epub 2010 Mar 31. (bib)
A. Duliu, T. Lasser, T. Wendler, A. Safi, S. I. Ziegler, N. Navab
Navigated Tracking of Skin Lesion Progression with Optical Spectroscopy
Proceedings of SPIE Vol. 7624, 76243P (2010) (bib)
2009
J. Traub, K. Herrmann, T. Lasser, N. Navab, S. I. Ziegler, A. K. Buck, T. Wendler
Freehand SPECT/Ultrasound Fusion for Hybrid Image-guided Resection
Proceedings of RSNA 2009, Chicago, USA, December 2009 (bib)
T. Wendler, K. Herrmann, A. Schnelzer, T. Lasser, J. Traub, O. Kutter, T. Schuster, M. Kiechle, M. Schwaiger, N. Navab, S. I. Ziegler, A. K. Buck
Clinical introduction of freehand SPECT for image-guided sentinel lymph node biopsy
Proceedings of Annual Congress of the European Association of of Nuclear Medicine (EANM 2009), Barcelona, Spain, October 2009 (bib)
T. Wendler, X. Feng, K. Herrmann, T. Lasser, J. Traub, S. I. Ziegler, N. Navab, A. K. Buck
2D/3D registration of freehand SPECT and planar scintigraphy for clinical evaluation of 3D thyroid scintigraphy
Proceedings of Annual Congress of the European Association of of Nuclear Medicine (EANM 2009), Barcelona, Spain, October 2009 (bib)
T. Wendler, K. Herrmann, T. Lasser, J. Traub, M. Schwaiger, N. Navab, S. I. Ziegler, A. K. Buck
First experience with freehand SPECT for lymphatic mapping in melanoma in upper body
Proceedings of Annual Congress of the European Association of of Nuclear Medicine (EANM 2009), Barcelona, Spain, October 2009 (bib)
T. Wendler, T. Lasser, J. Traub, S. I. Ziegler, N. Navab
Freehand SPECT / ultrasound fusion for hybrid image-guided resection
Proceedings of Annual Congress of the European Association of of Nuclear Medicine (EANM 2009), Barcelona, Spain, October 2009 (bib)
T. Lasser, A. Duliu, T. Wendler, S. I. Ziegler, N. Navab
Interactive Reconstruction for Freehand SPECT: An Approach to Acquisition Guidance?
Proceedings of Annual Congress of the European Association of of Nuclear Medicine (EANM 2009), Barcelona, Spain, October 2009 (bib)
C. Özgür, J. Bieniarz, T. Lasser, S. I. Ziegler, N. Navab, T. Wendler
Phenomenological Models for intraoperative Positron Emission Surface Imaging using Handheld Probes
Proceedings of World Congress in Medical Physics and Biomedical Engineering (WC 2009), Munich, Germany, September 2009 (bib)
X. Feng, K. Szajkowska, T. Lasser, S. I. Ziegler, N. Navab, T. Wendler
2D/3D registration of freehand SPECT and planar scintigraphy for clinical evaluation of 3D thyroid scintigraphy
Proceedings of World Congress in Medical Physics and Biomedical Engineering (WC 2009), Munich, Germany, September 2009 (bib)
J. Traub, K. Herrmann, T. Wendler, T. Lasser, M. Schwaiger, N. Navab, S. I. Ziegler, A. K. Buck
First clinical results of freehand SPECT for lymphatic mapping in breast cancer
Proceedings of the Molekulare Bildgebung (MOBI), Berlin, Germany, Jun. 2009 (bib)
T. Wendler, K. Herrmann, T. Lasser, J. Traub, M. Schwaiger, S. I. Ziegler, N. Navab, A. K. Buck
Freehand SPECT: first in-vivo evaluation and comparison to conventional lymphatic mapping
Proceedings of Annual Meeting of Society of Nuclear Medicine (SNM 2009), Toronto, Canada, June 2009 (bib)
T. Wendler, X. Feng, T. Lasser, K. Herrmann, J. Traub, K. Scheidhauer, S. I. Ziegler, D. Lenhart, J. Grahneis, M. Schwaiger, N. Navab, A. K. Buck
Freehand SPECT for 3D thyroid scintigraphy: first patient report
Proceedings of DGN Nuklearmedizin 2009, Leipzig, Germany, April 2009 (bib)
K. Herrmann, T. Wendler, M. Chen, A. Bartel, T. Lasser, K. Scheidhauer, J. Traub, T. Schuster, S. I. Ziegler, M. Schwaiger, A. K. Buck, N. Navab
Freehand SPECT: first in-vivo use for lymphatic mapping and comparison to conventional imaging
Proceedings of DGN Nuklearmedizin 2009, Leipzig, Germany, April 2009 (bib)
2008
T. Wendler, T. Lasser, A. K. Buck, C. Özgür, M. Schwaiger, S. I. Ziegler, N. Navab
First in Vivo Use of a Fused Gamma Ultrasound System
Proceedings of RSNA 2008, Chicago, USA, December 2008 (bib)
T. Wendler, T. Lasser, S. I. Ziegler, N. Navab
Towards Confident 3D Tomographic Reconstruction for Asymmetric, Sparse Detector Geometries
Proceedings of IEEE Medical Imaging Conference (IEEE MIC 2008), Dresden, Germany, October 2008 (bib)
T. Lasser, T. Wendler, S. I. Ziegler, N. Navab
Towards Reproducibility of Freehand 3D Tomographic Nuclear Imaging
Proceedings of IEEE Medical Imaging Conference (IEEE MIC 2008), Dresden, Germany, October 2008 (bib)
T. Lasser, T. Wendler, J. Traub, S. I. Ziegler, N. Navab
Definition of optimal collimator geometries for 3D tomographic thyroid scintigraphy using navigated gamma probes
Proceedings of Annual Congress of the European Association of Nuclear Medicine (EANM 2008), Munich, Germany, October 2008 (bib)
T. Wendler, T. Lasser, A. K. Buck, J. Traub, M. Schwaiger, S. I. Ziegler, N. Navab
First case report of 3D tomographic thyroid scintigraphy with tracked gamma probes
Proceedings of Annual Congress of the European Association of Nuclear Medicine (EANM 2008), Munich, Germany, October 2008, Eur J Nuc Med Mol Imaging, vol. 35 (Suppl. 2), S129 (bib)
T. Wendler, A. Hartl, T. Lasser, J. Traub, S. I. Ziegler, N. Navab
Tracking-based statistical correction for radio-guided cancer surgery
Proceedings of World Molecular Imaging Congress (WMIC 2008), Nice, France, September 2008 (bib)
T. Lasser, A. Duliu, T. Wendler, J. Becker, S. I. Ziegler, N. Navab
Computer-assisted spectral quantification of disease progression in CTCL
Proceedings of World Molecular Imaging Congress (WMIC 2008), Nice, France, September 2008 (bib)
T. Wendler, J. Traub, T. Lasser, M. Feuerstein, J. Vogel, S. I. Ziegler, N. Navab
Combined ultrasound and gamma probe imaging for examination of thyroid nodules
Proceedings of Annual Meeting of Society of Nuclear Medicine (SNM 2008), New Orleans, USA, June 2008 (bib)
T. Wendler, A. Hartl, T. Lasser, J. Traub, S. I. Ziegler, N. Navab
3D Intra-operative nuclear imaging for SLNB in neck
Proceedings of Annual Meeting of Society of Nuclear Medicine (SNM 2008), New Orleans, USA, June 2008 (bib)
T. Lasser, A. Duliu, T. Wendler, S. I. Ziegler, N. Navab
Navigated tracking of skin lesion progression with optical spectroscopy
Proceedings of Annual Meeting of Society of Nuclear Medicine (SNM 2008), New Orleans, USA, June 2008 (bib)
A. Hartl, T. Wendler, J. Traub, T. Lasser, S. I. Ziegler, N. Navab
Confident radioactivity surface reconstruction for control of resection borders
Proceedings of Annual Meeting of Society of Nuclear Medicine (SNM 2008), New Orleans, USA, June 2008 (bib)
T. Wendler, I. Faure de Pebeyre, T. Lasser, N. Navab
Integrated Surface Acquisition for Hand-Held Probes
Proceedings of OSA Biomedical Optics (BIOMED 2008), St. Petersburg, USA, March 2008 (bib)
T. Lasser, A. Soubret, J. Ripoll, V. Ntziachristos
Surface Reconstruction for free-space 360° Fluorescence Molecular Tomography and the effects of animal motion
IEEE Transactions on Medical Imaging 2008, 27(2):188-194 (bib)
2007
T. Wendler, M. Feuerstein, J. Traub, T. Lasser, J. Vogel, F. Daghighian, S. I. Ziegler, N. Navab
Real-time fusion of ultrasound and gamma probe for navigated localization of liver metastases
Proceedings of Medical Image Computing and Computer-Assisted Intervention (MICCAI 2007), Brisbane, Australia, October 29 - November 2007, LNCS 4792 (2), pp. 909-917 (bib)
T. Wendler, A. Hartl, T. Lasser, J. Traub, F. Daghighian, S. I. Ziegler, N. Navab
Towards intra-operative 3D nuclear imaging: reconstruction of 3D radioactive distributions using tracked gamma probes
Proceedings of Medical Image Computing and Computer-Assisted Intervention (MICCAI 2007), Brisbane, Australia, October 29 - November 2 2007, LCNS 4792 (2), pp. 252-260 (bib)
A. Hartl, T. Wendler, T. Lasser, J. Traub, S. I. Ziegler, N. Navab
Towards intra-operative 3D nuclear imaging: development and evaluation of ad hoc models
Proceedings of Jahrestagung der deutschen Gesselschaft für Computer- und Roboterassistierte Chirurgie e.V. (CURAC 2007), Karlsruhe, Germany, October 2007 (bib)
T. Wendler, J. Traub, A. Hartl, T. Lasser, M. Burian, A. K. Buck, F. Daghighian, M. Schwaiger, S. I. Ziegler, N. Navab
Adding navigation to radio-guided surgery: new possibilities, new problems, new solutions
Proceedings of Russian Bavarian Conference on Biomedical Engineering (RBC Biomed 2007), Erlangen, Germany, July 2-3, 2007, pp. 96-100 (bib)
T. Lasser, V. Ntziachristos
Optimization of 360° projection fluorescence molecular tomography
Medical Image Analysis 2007, 11(4):389-399 (bib)
T. Lasser, N. Deliolanis, A. Soubret, J. Ripoll, V. Ntziachristos
360° free space Fluorescence Molecular Tomography using silhouette surface reconstruction
SPIE 2007 European Conferences on Biomedical Optics, Munich, Germany, June 17-21, 2007 (bib)
D. Hyde, A. Soubret, J. Dunham, T. Lasser, E. Miller, D. Brooks, V. Ntziachristos
Analysis of reconstructions in full view fluorescence molecular tomography
Proceedings of SPIE Vol. 6498, 649803 (2007) (bib)
N. Deliolanis, T. Lasser, D. Hyde, A. Soubret, J. Ripoll, V. Ntziachristos
Free-space fluorescence molecular tomography utilizing 360° geometry projections
Optics Letters 32(4):382-384, January 2007 (bib)
2006
N. Deliolanis, T. Lasser, M. Niedre, A. Soubret, V. Ntziachristos
In-vivo Lung Cancer Imaging in Mice using 360° Free-space Fluorescence Molecular Tomography
IEEE 2006 International Conference of the Engineering in Medicine and Biology Society, New York City, USA, August 30 - September 3, 2006 (bib)
T. Lasser, V. Ntziachristos
Surface Reconstruction from Contours for Non-contact Fluorescence Molecular Tomography
Biomedical Optics Topical Meeting (Optical Society of America), Fort Lauderdale, USA, March 19 - 22, 2006. (bib)



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Title: Dr.
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Firstname: Tobias
Middlename:  
Lastname: Lasser
Picture: lassertobiasicon2.jpg
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Nationality: Germany
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Groups: Reconstruction, Medical Imaging, Molecular Imaging, Computer-Aided Surgery, Medical Augmented Reality
Expertise: Medical Imaging, Molecular Imaging, Computer-Aided Surgery
Position: Scientific Staff
Status: Active
Emailbefore: lasser
Emailafter: in.tum.de
Room: MI 03.13.061
Telephone: +49 89 289 19427
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Defensedate: 9 June 2011
Thesistitle: Tomographic Reconstruction Methods for Optical and Intra-operative Functional Imaging
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