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Darko Zikic |
Nassir Navab |
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Reconstruction and Registration of Histology and Phase Contrast Images for Clinical Validation of Imaging ModalitiesBefore its introduction into the hospital, a new imaging modality has to be validated. In other words, appearing structures need to be correlated to the imaged tissues. Such a cross validation is only meaningful when performed against the gold standard which is histology. Currently, cross validation is performed by qualitative comparison of 3D datasets to 2D histology slices. Since the acquisition of a consistent 3D histology volume is a challenging task, its comparison to the corresponding dataset always remained qualitative.The classic histology procedure can be divided in four steps: pre processing, cutting, post processing and imaging of the tissues. In the first step, the sample is chemically processed to preserve the tissues and is then embedded in a paraffin block. By using a microtome, it is cut in very thin slices, and put on a glass slide. During post processing the sample is stained to enhance the structures of interest. The imaging is performed with a camera mounted in a microscope, or with a dedicated scanner. Several difficulties inherent to this process can have a dramatic influence on the quality of the reconstructed histology volume. For instance, since the cutting process is done manually, problems like flipping, bending or ripping of the slides may happen. If the knife starts to wear off, some banding will appear over the slices. Moreover, a few slices could be missing. Finally since the staining color is time dependent, variation in the color of the slices can occur. In this project, we propose to improve the histology procedure and to develop methods towards a consistent reconstruction of 3D histology volumes. |
Simulated UltrasoundWe are simulating Ultrasound images from CT volumes by assuming a correlation between Hounsfield units and acoustic impedance. Rays are cast trough the CT volume to simulate the US image formation. Simulated Ultrasound from CT can be used for CT/Ultrasound registration by comparing a real US image to simulated ones. Another application of simulated US is training. |
MosaicingThe creation of mosaics is an interesting application, which leads to many challenging theoretical and practical problems. In this project, we are mainly focusing on viewing the mosaicing as a multiple image alignment task. Therefore, pairwise registration methods with a consecutive normalization and simultaneous registration techniques are in focus. Espcically the simultaneous alignment of images for mosaicing seems very promising. We earlier developed a new type of multivariate extension for similarity measures, which led to a whole new class metrics. They are specifically adapted for their usage in mosaicing, but can also be used for general multiple image alignment tasks, e.g. population studies. Our main interest lied so far on the combination of several ultrasound images. To this end, we are benifiting from a quite recent development in ultrasonographic research; the development of advanced 2D array ultrasound transducers. Their new fabrication process allows for higher resolution images with a higher quality resulting from the increased frequency spectrum that they can be operated with. The instantaneously acquired ultrasound volumes serve as input for our mosaicing framework, where they will be compounded to one lager volume. |
3D user interfaces for medical interventionsThis work group aims at practical user interfaces for 3D imaging data in surgery and medical interventions. The usual monitor based visualization and mouse based interaction with 3D data will not present acceptable solutions. Here we study the use of head mounted displays and advanced interaction techniques as alternative solutions. Different issues such as depth perception in augmented reality environment and optimal data representation for a smooth and efficient integration into the surgical workflow are the focus of our research activities. Furthermore appropriate ways of interaction within the surgical environment are investigated. |
Advanced imaging in Head Mounted Displays (HMD) for patients with age related macular degenerationAge related macula degeneration (AMD) is the most common cause in the western hemisphere for going blind in advanced years. The incidence of the population being older than 60 is at the moment rapidly increasing and especially elder people suffer through the loss of the reading ability in their quality of life. Thanks to modern image processing methods and the principle of mediated-reality an individually adapted image of a camera mounted to a head-mounted-display ought to be shown to the patient. The way in which the image needs to be changed for each patient will be computed based on verifiable information from the patient about his defect. Hereunto existing systems, e.g. Preferential Hyperacuity Perimetry, will be evaluated and if needed a specialized system will be developed. The presented information will be individually adapted to the defect of each patient and targets at combining high resolution and a wide field of view. Besides individual adaption, the system to be developed shall allow the user to interactively adapt to advanced progress of his medical condition. |
Motion Compensation for CatheterizationsIn many minimally-invasive interventions, catheters are inserted into the body and guided to a region of interest with the help of fluoroscopic imaging (low-dose X-ray image sequences). Due to patient motion, the navigation can be disturbed, and the physician needs a longer time for treatment. This is hazardous in terms of radiation for both, physician and patient. In order to overcome these problems, suitable image-based compensation methods to resolve (non-) rigid motion can be applied. In this project, patient motion is analyzed and suitable compensation algorithms are developed. |
Registration of Angiographic ImagesAngiographic images visualize vascular structure in different modalities like X-Ray, CT, or MR data sets. In many medical applications, a registration and proper visualization of the data sets, especially the vasculature is useful for a better navigation. The focus of this project lies on 2D/3D registration of angiographic data where intensity-based, feature-based, and hybrid approaches are evaluated, the latter two of them requiring an accurate 2D and 3D segmentation of the data. |
Deformable RegistrationObjects change their form over time. Undoing these changes makes the two images of the same object more comparable. This process of finding a transformation of one of the images, such that it gets as similar as possible to the other one is called deformable registration. Deformable registration can lead to improvement of many medical procedures, both diagnostic and interventional. The main reason is that deformations of the human body are present in many settings and for many imaging techniques. Always, when these deformations occur between different scans, there is potential for the current methods to be improved by using deformable registration techniques. Example applications include follow-up studies, image fusion from different modalities and treatment planning. The focus of our work is two-fold: we try to understand and improve the existing registration methods and to solve clinical problems by applying the developed methods. |
Laparoscope Augmentation for Minimally Invasive Liver ResectionIn recent years, an increasing number of liver tumor indications were treated by minimally invasive laparoscopic resection. Besides the restricted view, a major issue in laparoscopic liver resection is the precise localization of the vessels to be divided. To navigate the surgeon to these vessels, pre-operative imaging data can hardly be used due to intra-operative organ deformations caused by appliance of carbon dioxide pneumoperitoneum and respiratory motion.Therefore, we propose to use an optically tracked mobile C-arm providing cone-beam computed tomography imaging capability intra-operatively. After patient positioning, port placement, and carbon dioxide insufflation, the liver vessels are contrasted and a 3D volume is reconstructed during patient exhalation. Without any further need for patient registration, the volume can be directly augmented on the live laparoscope video. This augmentation provides the surgeon with essential aid in the localization of veins, arteries, and bile ducts to be divided or sealed. Current research focuses on the intra-operative use and tracking of mobile C-arms as well as laparoscopic ultrasound, augmented visualization on the laparoscope's view, and methods to synchronize respiratory motion. |
Navigated BronchoscopyA common task during broncoscopy procedures is to biopsy peripheral lung tumors. The video bronchoscope is not capable to reach the peripheral lung nodes, but only the biopsy needle. Thus there is no video feedback, but only feedback of the current location of the biopsy tool by fluoroscopy imaging during the intervention. This exposes patient and surgical staff to additional radiation. Another drawback is that tumors can not be visualized on the fluoroscope images and they are only a projection, thus do not report the three dimensional position of the biopsy tool. Electromagnetic tracking is capable of tracking the tip of flexible instrument. A field generator with three orthogonal coils introduces current and thus generates a magnetic field. A sensor composed also of three orthogonal coils is capable to estimate its position and orientation with respect to a coordinate system defined by the field generator. Currently we investigate the combination of all available information for navigation and solutions to represent it in one unified user interface. This includes the measurements of the electromagnetic tracking system, the c-arm, techniques of virtual bronchoscopy, and other data. Furthermore, clinical evaluation is conducted. We define the clinical endpoint and show through studies that the procedure will benefit from the usage of the navigation system. |
Port Placement in Minimally Invasive Endoscopic SurgeryOptimal port placement is a delicate issue in minimally invasive endoscopic surgery. A good choice of the instruments' and endoscope's ports can avoid time-consuming consecutive new port placement. We present a novel method to intuitively and precisely plan the port placement. The patient is registered to its pre-operative CT by just moving the endoscope around fiducials, which are attached to the patient's thorax and are visible in its CT. Their 3D positions are automatically reconstructed. Without prior time-consuming segmentation, the pre-operative CT volume is directly rendered with respect to the endoscope or instruments. This enables the simulation of a camera flight through the patient's interior along the instruments' axes to easily validate possible ports. |
Deformable Guide Wire TrackingThese days, X-ray fluoroscopic imaging is the modality used most widely to guide physicians in angiographic interventions. Current guidance procedures are based on a roadmap, e.g. a digital subtracted angiography (DSA) acquired from a fixed viewpoint and the injection of contrast agent to visualize the current vessel anatomy. Such roadmaps cannot directly be blended with the fluoroscopic sequence due to misalignment caused by respiratory motion. A fundamental step toward a successful integration of any navigation application into clinical routine is the estimation and compensation of respiratory motion. We propose a novel method for deformable tracking of multiple ridge segments based on a MAP-MRF formulation and efficient discrete optimization. Ridges are modeled as B-Spline curves which allows us to apply smooth deformations based on a minimal number of parameters. Our tracking framework is well adapted to the noisy domain of fluoroscopic imaging and the handling of multiple segments. |
| 2010 | |
| D. Zikic, A. Kamen, N. Navab
Unifying Characterization of Deformable Registration Methods Based on the Inherent Parameterization International Workshop on Biomedical Image Registration (WBIR), in Lübeck, Germany, July 11-13 2010. (bib) |
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| M. Groher, M. Baust, D. Zikic, N. Navab
Monocular Deformable Model-to-Image Registration of Vascular Structures International Workshop on Biomedical Image Registration (WBIR), in Lübeck, Germany, July 11-13 2010. (bib) |
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| D. Zikic, A. Kamen, N. Navab
Natural Gradients for Deformable Registration IEEE Conference on Computer Vision and Pattern Recognition (CVPR) in San Francisco, CA, USA, June 13-18 2010. (bib) |
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| W. Wein, O. Kutter, A. Aichert, D. Zikic, A. Kamen, N. Navab
Automatic non-linear mapping of pre-procedure CT volumes to 3D ultrasound IEEE International Symposium on Biomedical Imaging (ISBI), Rotterdam, The Netherlands, April 14 - 17 2010. (bib) |
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| X. Luo, M. Feuerstein, T. Sugiura, T. Kitasaka, K. Mori, K. Imaizumi, Y. Hasegawa
Towards hybrid bronchoscope tracking under respiratory motion: evaluation on a dynamic motion phantom SPIE Medical Imaging, San Diego, California, USA, February 2010 (bib) |
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| D. Zikic, B. Glocker, O. Kutter, M. Groher, N. Komodakis, A. Kamen, N. Paragios, N. Navab
Markov Random Field Optimization for Intensity-based 2D-3D Registration SPIE Medical Imaging, San Diego, California, USA, 13-18 February 2010 (bib) |
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| T. Sugiura, M. Feuerstein, T. Kitasaka, Y. Suenaga, K. Imaizumi, Y. Hasegawa, K. Mori
A study on a breathing motion compensation for bronchoscope tracking based on bronchial tree structure information IEICE Medical Imaging, Naha, Japan, January 2010 (bib) |
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| 2009 | |
| A. Sotiras, N. Komodakis, B. Glocker, J.-F. Deux, N. Paragios
Graphical Models and Deformable Diffeomorphic Population Registration Using Global and Local Metrics Medical Image Computing and Computer Assisted Intervention (MICCAI), London, UK, September 20-24 2009. (bib) |
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| B. Glocker, N. Komodakis, N. Navab, G. Tziritas, N. Paragios
Dense Registration with Deformation Priors Information Processing in Medical Imaging (IPMI), Williamsburg, VA, USA, July 5-10 2009. (bib) |
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| B. Glocker, N. Komodakis, N. Paragios, N. Navab
Approximated Curvature Penalty in Non-rigid Registration using Pairwise MRFs 5th International Symposium on Visual Computing (ISVC), Las Vegs, Nevada, USA, Nov 30-Dec 2 2009. (bib) |
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| T. Kugo, M. Feuerstein, T. Kitasaka, K. Mori
A study on construction of respiratory lung motion model for bronchoscope guidance system 18th Meeting of the Japan Society of Computer Assisted Surgery, Tokyo, Japan, November 2009 (bib) |
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| T. Sugiura, M. Feuerstein, T. Kitasaka, K. Imaizumi, Y. Hasegawa, K. Mori
A study on a method for bronchoscope tracking considering breathing motion by using bronchial structure 18th Meeting of the Japan Society of Computer Assisted Surgery, Tokyo, Japan, November 2009 (bib) |
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| X. Luo, M. Feuerstein, T. Kitasaka, M. Mori, H. Takabatake, H. Natori, K. Imaizumi, Y. Hasegawa, K. Mori
Improvement of Bronchoscope Tracking by Combining SURF Features Based Camera Motion Estimation and Image Registration 18th Meeting of the Japan Society of Computer Assisted Surgery, Tokyo, Japan, November 2009 (bib) |
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| W. Wein, E. Camus, M. John, M. Diallo, C. Duong, A. Al-Ahmad, R. Fahrig, A. Khamene, C. Xu
Towards Guidance of Electrophysiological Procedures with Real-time 3D Intracardiac Echocardiography Fusion to C-arm CT Medical Image Computing and Computer-Assisted Intervention (MICCAI 2009), London, UK, September 2009 (bib) |
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| C. Wachinger, N. Navab
Alignment of Viewing-Angle Dependent Ultrasound Images. Medical Image Computing and Computer-Assisted Intervention (MICCAI), London, UK, September 20-24 2009 (bib) |
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| O. Pauly, N. Padoy, H. Poppert, L. Esposito, H-H. Eckstein, N. Navab
Towards Application-specific Multi-modal Similarity Measures: a Regression Approach. MICCAI Workshop on Probabilistic Models in Medical Image Analysis (PMMIA), London, UK, September 2009. (bib) |
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| O. Kutter, W. Wein, N. Navab
Multi-modal registration based Ultrasound Mosaicing Medical Image Computing and Computer-Assisted Intervention (MICCAI), London, UK, September 20-24 2009 (bib) |
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| A. Khamene, D. Zikic, M. Diallo, T. Boettger, E. Rietzel
A Novel Intensity Similarity Metric with Soft Spatial Constraint for a Deformable Image Registration Problem in Radiation Therapy. Medical Image Computing and Computer Assisted Intervention (MICCAI), London, UK, September 20-24 2009. (bib) |
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| Benedikt Schultis
Video-based Bronchoscope Tracking for Navigated Bronchoscopy Bachelor's Thesis. Technische Universität München, September 2009 (bib) |
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| X. Luo, M. Feuerstein, D. Deguchi, T. Kitasaka, Y. Suenaga, K. Imaizumi, Y. Hasegawa, K. Mori
SIFT Feature-based Motion Estimation for Bronchoscope Tracking 28th Meeting of the Japanese Society of Medical Imaging Technology, Nagoya, Japan, August 2009 (bib) |
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| T. Kugo, M. Feuerstein, K. Mori, T. Kitasaka, Y. Suenaga, Y. Hasegawa, K. Imaizumi, S. Iwano
A preliminary study on making respiratory motion model for bronchoscope guidance system 28th Meeting of the Japanese Society of Medical Imaging Technology, Nagoya, Japan, August 2009 (bib) |
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| B. Glocker, D. Zikic, N. Komodakis, N. Paragios, N. Navab
Linear Image Registration through MRF Optimization IEEE International Symposium on Biomedical Imaging (ISBI), Boston, MA, USA, June 28-July 1 2009. (bib) |
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| C. Wachinger, N. Navab
Similarity Metrics and Efficient Optimization for Simultaneous Registration IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), Miami, Florida (USA), June 2009. (bib) |
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| O. Pauly, N. Padoy, H. Poppert, L. Esposito, N. Navab
Wavelet Energy Map: A Robust Support for Multi-modal Registration of Medical Images IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), Miami, Florida (USA), June 2009. (bib) |
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| T. Reichl, J. Passenger, O. Acosta, O. Salvado
Echtzeit-Ultraschallsimulation auf Grafik-Prozessoren mit CUDA Proceedings of Bildverarbeitung fuer die Medizin (BVM 2009), Heidelberg, Germany, March 2009 (bib) |
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| S. Demirci, F. Manstad-Hulaas, N. Navab
Extracting a Purely Non-Rigid Deformation Field of a Single Structure Proceedings of Bildverarbeitung fuer die Medizin (BVM 2009), Heidelberg, Germany, March 2009 (bib) |
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| T. Reichl, J. Passenger, O. Acosta, O. Salvado
Ultrasound goes GPU: real-time simulation using CUDA SPIE Medical Imaging, Orlando, Florida, USA, February 2009 (bib) |
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| O. Kutter, A. Karamalis, W. Wein, N. Navab
A GPU-Based Framework for Simulation of Medical Ultrasound SPIE Medical Imaging, Orlando, Florida, USA, February 2009 (bib) |
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| A. Karamalis, W. Wein, O. Kutter, N. Navab
Fast Hybrid Freehand Ultrasound Volume Reconstruction SPIE Medical Imaging, Orlando, Florida, USA, February 2009 (bib) |
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| C. Wachinger, S. Baumann, J. Zeltner, B. Glocker, N. Navab
Sphere Extraction in MR Images with Application to Whole-Body MRI. SPIE Medical Imaging, Orlando, Florida, USA, 7-12 February 2009 (bib) |
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| S. Demirci, F. Manstad-Hulaas, N. Navab
Quantification of Abdominal Aortic Deformation after EVAR SPIE Medical Imaging, Orlando, Florida, USA, 7-12 February 2009 (bib) |
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| T. Sugiura, D. Deguchi, M. Feuerstein, T. Kitasaka, Y. Suenaga, K. Mori
A method for accelerating bronchoscope tracking based on image registration by using GPU SPIE Medical Imaging, Orlando, Florida, USA, February 2009 (bib) |
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| O. Kutter, R. Shams, N. Navab
Visualization and GPU-accelerated simulation of medical ultrasound from CT images Computer Methods and Programs in Biomedicine, Volume 94, Issue 3, June, 2009 (bib) |
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| M. Groher, D. Zikic, N. Navab
Deformable 2D-3D Registration of Vascular Structures in a One View Scenario IEEE Trans. Med. Imag., 28 (6), pp. 847-860 (bib) |
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| 2008 | |
| C. Wachinger, B. Glocker, J. Zeltner, N. Paragios, N. Komodakis, M. S. Hansen, N. Navab
Deformable Mosaicing for Whole-body MRI Medical Image Computing and Computer-Assisted Intervention (MICCAI), New York, USA, September 6-10 2008 (bib) |
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| M. S. Hansen, B. Glocker, N. Navab, R. Larsen
Adaptive Parametrization of Multivariate B-splines for Image Registration IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), Anchorage, Alaska (USA), June 24-26, 2008 (bib) |
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| B. Glocker, N. Paragios, N. Komodakis, G. Tziritas, N. Navab
Optical Flow Estimation with Uncertainties through Dynamic MRFs IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), Anchorage, Alaska (USA), June 24-26, 2008 (bib) |
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| C. Wachinger
Insights Into Three-Dimensional Ultrasound Mosaicing: Strategies for the alignment of multiple ultrasound volumes VDM Verlag Dr. Müller, Stuttgart, ISBN: 3836488264, December 23 2008, Amazon (bib) |
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| B. Glocker, N. Komodakis, G. Tziritas, N. Navab, N. Paragios
Dense Image Registration through MRFs and Efficient Linear Programming Medical Image Analysis, Volume 12, Issue 6, December 2008, pp. 731-741 (bib) |
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| C. Wachinger, W. Wein, N. Navab
Registration Strategies and Similarity Measures for Three-dimensional Ultrasound Mosaicing Journal of the University Radiologists, Academic Radiology 15 (11), pp.1404-1415. Special issue of MICCAI 2007 (bib) |
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| T. Reichl, J. Passenger, O. Acosta, O. Salvado
Real-time ultrasound simulation on GPU CSIRO, Proceedings of CSIRO ICT Centre Conference 2008 (bib) |
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| T. Sugiura, D. Deguchi, M. Feuerstein, T. Kitasaka, K. Mori, Y. Suenaga, K. Imaizumi, Y. Hasegawa
A study on a method for accelerating bronchoscope tracking based on image registration on GPU 17th Meeting of the Japan Society of Computer Assisted Surgery, Tokyo, Japan, October/November 2008 (bib) |
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| X. Luo, M. Feuerstein, D. Deguchi, T. Kitasaka, Y. Suenaga, K. Imaizumi, Y. Hasegawa, K. Mori
A Study on Feature Point Extraction from Bronchoscopic Images for Bronchoscope Tracking 17th Meeting of the Japan Society of Computer Assisted Surgery, Tokyo, Japan, October/November 2008 (bib) |
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| W. Wein, S. Brunke, A. Khamene, M.R. Callstrom, N. Navab
Automatic CT-Ultrasound Registration for Diagnostic Imaging and Image-guided Intervention Medical Image Analysis 12(5), pp 577-585, October 2008 (bib) |
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| W. Wein, J.-Z. Cheng, A. Khamene
Ultrasound based Respiratory Motion Compensation in the Abdomen MICCAI 2008 Workshop on Image Guidance and Computer Assistance for Soft-Tissue Interventions, September 10 2008, New York City, USA. (bib) |
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| E. Gassner, Razvan Ioan Ionasec, B. Georgescu, S. Vogt, U. J. Schoepf, D. Comaniciu
Performance of a Dynamic Aortic Valve Model for Quantification of the Opening Area at Cardiac MDCT . Comparison to Manual Planimetry Radiological Society of North America, RSNA, 2008, Chicago, USA, November 2008 (bib) |
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| Razvan Ioan Ionasec, B. Georgescu, D. Comaniciu, S. Vogt, U. J. Schoepf, E. Gassner
Patient Specific 4D Aortic Root Models Derived from Volumetric Image Data Sets Radiological Society of North America, RSNA, 2008, Chicago, USA, November 2008 (bib) |
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| Razvan Ioan Ionasec, B. Georgescu, E. Gassner, S. Vogt, O. Kutter, M. Scheuering, N. Navab, D. Comaniciu
Dynamic model-driven quantification and visual evaluation of the aortic valve from 4D CT Medical Image Computing and Computer-Assisted Intervention, MICCAI, 2008, New York, USA, September 6-10 2008 (bib) |
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| J. Choi, B. Georgescu, Razvan Ioan Ionasec, S. Raman, G. Hong, S. Liu, Helene Houle, M. A. Vannan
Novel Semi-Automatic Quantitative Assessment of The Aortic Valve and Aortic Root from Volumetric 3D Echocardiography: Comparison to Volumetric Cardiac Computed Tomography (CT) AHA, New Orleans, USA, November 2008 (bib) |
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| F. Bender, M. Groher, A. Khamene, W. Wein, H. Heibel, N. Navab
3D Dynamic Roadmapping for Abdominal Catheterizations Medical Image Computing and Computer-Assisted Intervention, MICCAI, 2008, New York, USA, September 6-10 2008 (bib) |
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| S. Atasoy, D. Noonan, S. Benhimane, N. Navab, G. Z. Yang
A Global Approach for Automatic Fibroscopic Video Mosaicing in Minimally Invasive Diagnosis Medical Image Computing and Computer-Assisted Intervention, MICCAI, 2008, New York, USA, September 6-10 2008 (bib) |
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| T. Reichl
Ultrasound Simulation Project Patent Landscape Search August 2008 CSIRO, The Australian e-Health Research Centre, Internal Report 2008/289 (bib) |
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| C. Wachinger, R. Shams, N. Navab
Estimation of Acoustic Impedance from Multiple Ultrasound Images with Application to Spatial Compounding IEEE Computer Society Conference on Computer Vision and Pattern Recognition, Anchorage, Alaska (USA), June 2008. Workshop on Mathematical Methods in Biomedical Image Analysis (MMBIA). (bib) |
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| R. Lasowski, S. Benhimane, J. Vogel, T. F. Jakobs, C. J. Zech, C. Trumm, M. Brokate, N. Navab
Adaptive visualization using the annealing M-estimator Workshop Bildverarbeitung für die Medizin, Berlin, Germany, April 6-8, 2008 (bib) |
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| T. Reichl, J. Passenger, O. Acosta, O. Salvado
Transrectal Ultrasound and Biopsy Simulation Literature Review CSIRO, The Australian e-Health Research Centre, Internal Report 2008/108 (bib) |
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| T. Reichl
Tracking of Laparoscopic Ultrasound. Error Correction for Electromagnetic Tracking. VDM Verlag Dr. Müller, Stuttgart, ISBN: 978-3-8364-7350-7, February 2008, Amazon (bib) |
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| O. Pauly, G. Unal, G. Slabaugh, S. Carlier, T. Fang
Semi-Automatic Matching of OCT and IVUS Images For Image Fusion SPIE Medical Imaging, San Diego, California (USA), February 2008. (bib) |
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| R. Lasowski, S. Benhimane, J. Vogel, T. F. Jakobs, C. J. Zech, C. Trumm, Ch. Clason, N. Navab
Adaptive visualization for needle guidance in RF Liver Ablation: taking organ deformation into account SPIE Medical Imaging, San Diego, California, USA, February 16-21, 2008 (bib) |
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| W. Wein, A. Khamene
Image-Based Method for In-Vivo Freehand Ultrasound Calibration SPIE Medical Imaging, 16-21 February 2008, San Diego, California USA (bib) |
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| S. Demirci, O. Kutter, F. Manstad-Hulaas, R. Bauernschmitt, N. Navab
Advanced 2D-3D Registration for Endovascular Aortic Interventions: Addressing Dissimilarity in Images SPIE Medical Imaging, San Diego, California, USA, 16-21 February 2008 (bib) |
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| D. Zikic, M. Groher, A. Khamene, N. Navab
Deformable Registration of 3D Vessel Structures to a Single Projection Image. SPIE Medical Imaging, San Diego, California, USA, 16-21 February 2008 (bib) |
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| D. Zikic, S. Sourbron, X. Feng, H. J. Michaely, A. Khamene, N. Navab
Automatic Alignment of Renal DCE-MRI Image Series for Improvement of Quantitative Tracer Kinetic Studies. SPIE Medical Imaging, San Diego, California, USA, 16-21 February 2008 (bib) |
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| C. Wachinger, N. Navab
Ultrasound Specific Similarity Measures for Three-Dimensional Mosaicing. SPIE Medical Imaging, San Diego, California, USA, 16-21 February 2008 (bib) |
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| S. Atasoy, M. Groher, D. Zikic, B. Glocker, T. Waggershauser, M. Pfister, N. Navab
Real-Time Respiratory Motion Tracking: Roadmap Correction for Hepatic Artery Catheterizations SPIE Medical Imaging, San Diego, California, USA, 16-21 February 2008 (bib) |
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| N. Navab, M. Groher
Novel Navigation and Advanced Visualization Techniques for Abdominal Catheterization Hospital Imaging and Radiology Europe, 2 (4), pp. 29-30, Feb. 2008 (bib) |
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| 2007 | |
| B. Glocker, N. Komodakis, N. Paragios, G. Tziritas, N. Navab
Inter and Intra-Modal Deformable Registration: Continuous Deformations Meet Efficient Optimal Linear Programming Information Processing in Medical Imaging (IPMI), Kerkrade, Netherlands, July 2-6 2007. This work won the Erbsmann prize for the best oral presentation among all first-time presenters at IPMI 2007. (bib) |
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| A. Khamene, L. Schwarz, D. Zikic, F. Azar, E. Rietzel, N. Navab
A Unified and Efficient Approach for Free-form Deformable Registration Mathematical Methods in Biomedical Image Analysis (MMBIA), IEEE Computer Society Workshop on, Rio de Janeiro, Brasil, November 2007 (bib) |
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| W. Wein, A. Khamene, D.-A. Clevert, O. Kutter, N. Navab
Simulation and Fully Automatic Multimodal Registration of Medical Ultrasound Medical Image Computing and Computer-Assisted Intervention (MICCAI 2007), Brisbane, Australia, October 2007. Received the MICCAI 2007 Young Scientist Award. (bib) |
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| W. Wein, M. Blume, U. Leischner, H.-U. Dodt, N. Navab
Quality-based Registration and Reconstruction of Optical Tomography Volumes Medical Image Computing and Computer-Assisted Intervention (MICCAI 2007), Brisbane, Australia, October 2007 (bib) |
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| C. Wachinger, W. Wein, N. Navab
Three-Dimensional Ultrasound Mosaicing Medical Image Computing and Computer-Assisted Intervention, MICCAI, 2007, Brisbane, Australia, October 29 - November 2 2007 (bib) |
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| M. Groher, F. Bender, R.T. Hoffmann, N. Navab
Segmentation-driven 2D-3D Registration for Abdominal Catheter Interventions Medical Image Computing and Computer-Assisted Intervention, MICCAI, 2007, Brisbane, Australia, October 29 - November 2 2007, LNCS 4792, pp. 527-535 (bib) |
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| M. Groher, T. F. Jakobs, N. Padoy, N. Navab
Planning and Intraoperative Visualization of Liver Catheterizations: New CTA Protocol and 2D-3D Registration Method Academic Radiology 14 (11), pp.1324-1339. Special issue of MICCAI 2006 (bib) |
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| B. Glocker, N. Komodakis, N. Paragios, Ch. Glaser, G. Tziritas, N. Navab
Primal/Dual Linear Programming and Statistical Atlases for Cartilage Segmentation Medical Image Computing and Computer-Assisted Intervention (MICCAI), Brisbane, Australia, October 29 - November 2 2007 (bib) |
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| M. Blume, D. Zikic, W. Wein, N. Navab
A New and General Method for Blind Shift-Variant Deconvolution of Biomedical Images Medical Image Computing and Computer-Assisted Intervention (MICCAI 2007), Brisbane, Australia, October 2007 (bib) |
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| C. Wachinger, W. Wein, N. Navab
Ultrasound Volume Stitching 6. Jahrestagung der Deutschen Gesellschaft für Computer-und Roboter-Assistierte Chirurgie (CURAC 2007), Karlsruhe, Germany, October 2007 (bib) |
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| W. Wein, B. Röper, N. Navab
Integrating diagnostic B-mode ultrasonography into CT-based radiation treatment planning IEEE Transactions on Medical Imaging, 26 (June 2007), pp. 866–879 (bib) |
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| M. Groher, R.T. Hoffmann, C. J. Zech, M. Reiser, N. Navab
An Efficient Registration Algorithm for Advanced Fusion of 2D/3D Angiographic Data in Proceedings of Bildverarbeitung fuer die Medizin (BVM 2007), Munich, Germany, March 2007 (bib) |
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| R. Micu = (Lasowski), T. F. Jakobs, C. J. Zech, N. Navab
Evaluation of different subvolume visualizations in CT-Fluoroscopy guided RF Liver Ablation SPIE Medical Imaging, San Diego, California, USA, 17-22 February 2007 (bib) |
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| 2006 | |
| R. Micu = (Lasowski), T. F. Jakobs, C. J. Zech, M. Reiser, N. Navab
Subvolume visualization based on piecewise 2D CT-Fluoroscopy to 3D CT-Volume registration 5. Jahrestagung der Deutschen Gesellschaft für Computer-und Roboter-Assistierte Chirurgie (CURAC 2006), Hannover, Germany, Oktober 2006 (bib) |
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| M. Groher, T. F. Jakobs, M. Reiser, N. Navab
Advanced 2D-3D Registration Method for Transarterial Chemoembolizations 5. Jahrestagung der Deutschen Gesellschaft für Computer-und Roboter-Assistierte Chirurgie (CURAC 2006), Hannover, Germany, September 2006 (bib) |
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| R. Micu = (Lasowski), T. F. Jakobs, M. Urschler, N. Navab
A new registration/visualization paradigm for CT-Fluoroscopy guided RF liver ablation Proceedings of Medical Image Computing and Computer-Assisted Intervention (MICCAI 2006), Copenhagen, Denmark, October 2006 (bib) |
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| D. Zikic, W. Wein, A. Khamene, D.-A. Clevert, N. Navab
Fast Deformable Registration of 3D-Ultrasound Using a Variational Approach Proceedings of Medical Image Computing and Computer-Assisted Intervention (MICCAI 2006), Copenhagen, Denmark, October 2006 (bib) |
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| W. Wein, F. Pache, B. Röper, N. Navab
Backward-Warping Ultrasound Reconstruction for Improving Diagnostic Value and Registration Proceedings of Medical Image Computing and Computer-Assisted Intervention (MICCAI 2006), Copenhagen, Denmark, October 2006 (bib) |
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| M. Groher, N. Padoy, T. F. Jakobs, N. Navab
New CTA Protocol and 2D-3D Registration Method for Liver Catheterization Proceedings of Medical Image Computing and Computer-Assisted Intervention (MICCAI 2006), Copenhagen, Denmark, October 2006 (bib) |
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| D. Zikic, A. Khamene, N. Navab
Intensity-Unbiased Force Computation for Variational Motion Estimation. Workshop on Image Registration in Deformable Environments in conjunction with the British Machine Vision Conference (BMVC 2006), Edinburgh, Scotland, September 2006 (bib) |
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| B. Röper, W. Wein, P. Kneschaurek, M. Molls, M. Dobritz, N. Navab
Image-based fusion of diagnostic ultrasound and planning CT for radiotherapy of head and neck cancer – a way towards improvement of regional target volume delineation 12. Jahreskongress der Deutschen Gesellschaft für Radioonkologie (DEGRO), May 2006, Dresden, Germany (bib) |
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| A. Khamene, P. Bloch, W. Wein, M. Svatos, F. Sauer
Automatic Registration of Portal Images and Volumetric CT for Patient Positioning in Radiation Therapy Medical Image Analysis 10 (2006), pages 96-112 (bib) |
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| A. Khamene, R. Chisu, W. Wein, N. Navab, F. Sauer
A Novel Projection Based Approach for Medical Image Registration Third International Workshop on Biomedical Image Registration (WBIR), 9-11 July 2006, Utrecht, The Netherlands. (bib) |
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| 2005 | |
| W. Wein, B. Röper, N. Navab
Automatic Registration and Fusion of Ultrasound with CT for Radiotherapy 8th International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI), October 2005, Palm Springs, California USA. (bib) |
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| W. Wein, B. Röper, N. Navab
2D/3D Registration Based on Volume Gradients CURAC, October 2004, Munich (bib) |
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| M. Groher, T. F. Jakobs, N. Padoy, N. Navab
Towards a Feature-based 2D-3D Registration Method of CTA and 2D Angiograms for Liver Tumor Chemoembolizations 4. Jahrestagung der Deutschen Gesellschaft für Computer-und Roboter-Assistierte Chirurgie (CURAC 2005), Berlin, Germany, September 2005 (bib) |
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| W. Wein, B. Röper, N. Navab
2D/3D Registration Based on Volume Gradients SPIE Medical Imaging, 12-17 February 2005, San Diego, California USA (bib) |
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