Publications


2012


Peter Mountney, Razvan Ionasec, Markus Kaizer, Sina KhakAbi, Wen Wu, Terrence Chen, Matthias John, Jan Boese, Dorin Comaniciu: Ultrasound and Fluoroscopic Images Fusion by Autonomous Ultrasound Probe Detection, MICCAI 2012, Nice, France, October 1-5 2012.
Kristof Ralovich, Lucian Itu, Viorel Mihalef, Puneet Sharma, Razvan Ionasec, Dime Vitanovski, Waldemar Krawtschuk, Nassir Navab, Dorin Comaniciu: Hemodynamic Assessment of Pre- and Post-Operative of Aortic Coarctation from MRI, MICCAI 2012, Nice, France, October 1-5 2012.
Ingmar Voigt, Etienne Assoumou Mengue, Razvan Ionasec, Tommaso Mansi, Bogdan Georgescu, Joachim Hornegger and Dorin Comaniciu: Model-based Postoperative Modeling of Stent-Based Devices from CT: Application to TAVI, MICCAI 2012 – Workshop MICCAI-STENT 2012, Nice, France, October 1-5 2012.
Yang Wang, Dime Vitanovski, Bogdan Georgescu, Razvan Ionasec, Ingmar Voigt, Saurabh Datta, Gareth Funka-Lea, Dorin Comaniciu: Automatic Detection and Quantification of Mitral Regurgitation on TTE with Application to Assist Mitral Clip Planning and Evaluation, MICCAI 2012 – Workshop CLIP 2012, Nice, France, October 1-5 2012.
Benedetta Leonardi, Dime Vitanovski, Allen Everett, Michael Suehling, Razvan Ionasec, Ludmilla Mantione, Giacomo Pongiglione: Fully-automatic, patient-specific 3D aortic arch modeling for patient treatment with aortic arch anomalies , The Society for Cardiovascular Magnetic Resonance, 15th Annual SCMR Scientific Sessions, Orlando FL, USA, 2012.
Kristof Ralovich, Viorel Mihalef, Puneet Sharma, Lucian Itu, Dime Vitanovski, Razvan Ionasec, Michael Suehling, Allen Everett, Giacomo
Pongiglione, Nassir Navab, and Dorin Comaniciu: Modeling and Simulation Framework for Hemodynamic Assessment of Aortic Coarctation Patients, International Society for Magnetic Resonance in Medicine, 20th Annual ISMRM Meeting, Melbourne, Australia, 2012
Tommaso Mansi, Ingmar Voigt, Bogdan Georgescu, Xudong Zheng, Etienne Assoumou Mengue, Michael Hackl, Razvan I. Ionasec, Thilo
Noack, Joerg Seeburger, Dorin Comaniciua: An Integrated Framework for Finite-Element Modeling of Mitral Valve Biomechanics from Medical Images: Application to MitralClip Intervention Planning, Medical Image Analysis, MIA 2012.
Sasa Grbic, Razvan Ionasec, Dime Vitanovski, Ingmar Voigt, Yang Wang, Bogdan Georgescu, Nassir Navab, Dorin Comaniciu: Complete Valvular Heart Apparatus Model from 4DCardiac CT, Medical Image Analysis, MIA 2012.
Wendy Tsang, Vivian Cui, Razvan Ionasec, Masaaki Takeuchi, Helene Houle, Lynn Weinert, David A Roberson, Roberto M. Lang: Evaluation of Aortic Root Areas and Diameters by Three-Dimensional Echocardiography, American College of Cardiology Annual Meeting – ACC 2012, Washington DC USA, 2012.
Yang Wang, Bogdan Georgescu, Terrence Chen, Wen Wu, Peng Wang, Xiaoguang Lu, Razvan Ionasec, Yefeng Zheng, Dorin Comaniciu: Learning-based Detection and Tracking in Medical Imaging: A Robust Information-Fusion Approach, Deformation models: tracking, animation, and applications, Springer, 2012
R. Ionasec: Developing the First Mathematical Representation of the Heart Valves to Capture a Large Spectrum of Morphological, Dynamic, and Pathological Variations, Circulation: European Perspectives, July 2012
Sasa Grbic, Christian Gesell, Razvan Ionasec, Matthias John, Jan Boese, Joachim Hornegger, Nassir Navab, Dorin Comaniciu: MODEL-BASED FUSION OF CT AND NON-CONTRASTED 3D C-ARM CT: APPLICATION TO TRANSCATHETER VALVE THERAPIES, IEEE International Symposium on Biomedical Imaging, ISBI 2012, Barcelona, May 2-5, 2012
Dime Vitanovski, Kristof Ralovich, Razvan Ionasec, Yefeng Zheng, Michael Suehling, Waldemar Krawtschuk, Joachim Hornegger and Dorin Comaniciu: PERSONALIZED LEARNING-BASED SEGMENTATION OF THORACIC AORTA AND MAIN BRANCHES FOR DIAGNOSIS AND TREATMENT PLANNING, IEEE International Symposium on Biomedical Imaging, ISBI 2012, Barcelona, May 2-5, 2012

2011


R. Ionasec, D. Vitanovski, D. Comaniciu : Morphological and Functional Modeling of the Heart Valves and Chambers, Patient-Specific Modeling in Tomorrow’s Medicine, Springer Jan 2012, ISBN 978-3-642-24617-3.
T. Mansi, I. Voigt, E. Assoumou Menge, R. Ionasec, B. Georgescu, T. Noack, J. Seeburger, D. Comaniciu: Towards Patient-Specific Finite-Element Simulation of Mitral Clip Procedure, MICCAI 2011, Toronto, Canada, September 18-22 2011.
I. Voigt, T. Mansi, R. Ionasec, E. Mengue, H. Houle, B. Georgescu, J. Hornegger, D. Comaniciu: Robust Physically-Constrained Modeling of the Mitral Valve and Subvalvular Apparatus, MICCAI 2011, Toronto, Canada, September 18-22 2011.
S. Grbic, R. Ionasec, Y. Wang, T. Mansi, B. Georgescu, M. John, J. Boese, Y. Zheng, N. Navab, D. Comaniciu: Model-Based Fusion of Multi-Modal Volumetric Images: Application to Transcatheter Valve Procedures, MICCAI 2011, Toronto, Canada, September 18-22 2011.
K. Ralovich, R. Ionasec, V. Mihalef, , B. Georgescu, A. Everett, N. Navab, D. Comaniciu : Computational Fluid Dynamics Framework for Large-Scale Simulation in Pediatric Cardiology , MICCAI 2011 Workshop for Computational Biomechanics for Medicine VI , Toronto, Canada, September 18-22 2011.
D. Vitanovski, A. Tsymbal, R. Ionasec, A. Greiser, E. Mueller, X. Lu, J. Hornegger, D. Comaniciu : Accurate Regression-based 4D Mitral Valve Segmentation from 2D MRI Slices , MICCAI 2011 Workshop for Machine Learning in Medical Imaging, Toronto, Canada, September 18-22 2011.
D. Vitanovski, A. Tsymbal, R. Ionasec, B. Georgescu, S. K. Zhou, J. Hornegger, D. Comaniciu: Learning distance function for regression-based 4D pulmonary trunk model reconstruction estimated from sparse MRI data, SPIE 2011, Volume: 7964.
V. Mihalef, R. Ionasec, G. Georgescu, I. Voigt, M. Suehling, D. Comaniciu: Patient-specific modelling of whole heart anatomy, dynamics and haemodynamics from four-dimensional cardiac CT images, Royal Society Interface Focus Journal, June 6, 2011 1:286-296.
I. Voigt, T. Mansi, V. Mihalef, R. Ionasec, A. Calleja, E. Mengue, P. Sharma, H. Houle, B. Georgescu, J. Hornegger, D. Comaniciu: Patient-Specific Model of Left Heart Anatomy, Dynamics and Hemodynamics from 4D TEE: A First Validation Study, Sixth International Conference on Functional Imaging and Modeling of the Heart, FIMH 2011, May 25-27, 2011.
R. Ionasec, Michael Suehling, Dorin Comaniciu: Sim-e-Child: Grid-Enabled Platform for
Simulations in Paediatric Cardiology –Toward the Personalized Virtual Child Heart, VPH Network of Excellence Newsletter, Number 5, 2011
A. Calleja, R. Ionasec, P. Thavendiranathan, S. Liu, H. Houle, C. Sai-Sudhakar, J. Crestanello, W. Perez, M. Andritsos, T. Ryan, M. Vannan: Automated Quantification of Aortic Root Remodeling in Aortic Stenosis Using Volumetric 3-D Transesophageal Echocardiography: Implications for Trans-Catheter Aortic Valve Replacement (TAVR), American College of Cardiology Annual Meeting – ACC 2011, New Orleans, USA, April 2011.
K. Stiver, A. Calleja, R. Ionasec, I. Voigt, P. Thavendiranathan, S. Liu, H. Houle, N. De Michelis, T. Ryan, M. Vannan: Superior Reproducibility of Automated 3-D Surgical Anatomy of Normal and Abnormal Mitral Valve when Compared to a Manual Approach, American Society of Echocardiography Annual Meeting – ASE 2011, Montreal, Canada, June 2011.
A. Calleja, K. Stiver, P. Thavendiranathan, S. Liu, R. Ionasec, I. Voigt, H. Houle, N. De Michelis, T. Ryan, M. Vannan: Automated Quantitative 3-D Echocardiography of The Surgical Mitral Valve Anatomy in Functional Mitral Regurgitation to Guide Mitral Valve Repair, American Society of Echocardiography Annual Meeting – ASE 2011, Montreal, Canada, June 2011.
P.J. Spevak, R.I. Ionasec, D. Comaniciu, K.W. Holmes, G. Pongiglione, A.D. Everett: Development and validation of a novel automated learning based algorithm for quantification of MRI right ventricular volume in Tetralogy of Fallot, Association of European Paediatric Cardiology Annual Meeting – AEPC 2011, Granada, Spain, May 2011.

2010


R. Ionasec: Patient-specific Modeling and Quantification of the Heart Valves from Multimodal Cardiac Images, PhD Dissertation 2010.
R. Ionasec, I. Voigt, B. Georgescu, Y. Wang, H. Houle, F. Vega-Higuera, N. Navab, D. Comaniciu:
Patient-Specific Modeling and Quantification of the Aortic and Mitral Valves From 4-D Cardiac CT and TEE, IEEE TMI 2010, Vol. 29, No. 9, pp. 1636-1651.
S. Grbic, R. Ionasec, D. Vitanovski, I. Voigt, B. Georgescu, , N. Navab, D. Comaniciu:
Complete Valvular Heart Apparatus Model from 4D Cardiac CT, Medical Image Computing and Computer Assisted Intervention – MICCAI 2010,Beijing, China, September 20-24 2010.
D. Vitanovski, R. Ionasec, A. Tsymbal, B. Georgescu, M. Huber, J. Hornegger, D. Comaniciu:
Cross-modality Assessment and Planning for Pulmonary Trunk Treatment using CT and MRI imaging, Medical Image Computing and Computer Assisted Intervention – MICCAI 2010, Beijing, China, September 20-24 2010.
I. Voigt, R. Ionasec, B. Georgescu, J. Bose, J. Hornegger, D. Comaniciu:
Computational Decision Support and Intraoperative Guidance for Percutaneous Aortic Valve Implantation, Medical Image Computing and Computer Assisted Intervention Workshop – MIAR 2010, Beijing, China, September 20-24 2010.
V. Mihalef, R. Ionasec, Y. Wang, Y. Zheng, B. Georgescu, D. Comaniciu:
Patient-specific Modeling of Left Heart Anatomy, Dynamics and Hemodynamics from High Resolution 4D CT, IEEE International Symposium on Biomedical Imaging – ISBI 2010, Rotterdam, Netherlands, April 2010.
A. Calleja, R. Ionasec, H. Houle, S. Liu, J. Dickerson, P. Thavendiranathan, C. Sai-Sudhakar, J. Crestanello, T. Ryan, M. Vannan:
Automated Quantitative Modeling of the Aortic Valve and Root in Aortic Regurgitation Using Volume 3-D Transesophageal Echocardiography, American College of Cardiology Annual Meeting – ACC 2010, Atlanta, USA, March 2010.
V. Mihalef, R. Ionasec, P. Sharma, B. Georgescu, M. Huber, D. Comaniciu:
Patient-Specific Modeling of Whole Heart Anatomy, Dynamics and Hemodynamics from 4D cardiac CT Images, VPH Virtual Physiological Human – Annual Conference 2010, Brussels, Belgium, October 2010.
R. Ionasec, V. Mihalef, B. Georgescu, N. Navab, D. Comaniciu:
Patient-Specific Modelling of Left-Heart Anatomy, Dynamics and Hemodynamics from 4D cardiac CT Images, BMT Biomedizinische Technik 2010, Rostock, Germany, October 2010.
I. Voigt, D. Vitanovski, R. Ionasec, A. Tsymbal, B. Georgescu, K. Zhou, M. Huber, N. Navab, J. Hornegger, D. Comaniciu:
Learning discriminative distance functions for valve retrieval and improved decision support in valvular heart disease, SPIE Medical Imaging, 2010, San Diego, USA, February 2010.
S. Grbic, R. Ionasec, Y. Zheng, D. Zaeuner, B. Georgescu, D. Comaniciu:
Aortic Valve and Ascending Aortic Root Modeling from 3D and 3D+t CT, SPIE Medical Imaging, 2010, San Diego, USA, February 2010.
R. Ionasec: 4-D modeling increases accuracy in valve disease diagnosis, Siemens Healthcare Ultrasound Corporate News 2010.
R. Ionasec, I. Voigt, V. Mihalef, S. Grbic, D. Vitanovski, Y. Wang, Y. Zheng, J. Hornegger, N. Navab, B. Georgescu, D. Comaniciu:
Patient-specific Modeling of the Heart: Applications to Cardiovascular Disease Management In: Camara, Oscar; Sermesant, Maxime; Rhode, Kawal; Pop, Mihaela; Smith, Nic; Young, Alistair (Eds.)
Proceedings of the International Workshop on Statistical Atlases and Computational Models of the Heart: Mapping Structure and Function (STACOM Beijing 20.09.2010) Heidelberg : Springer 2010

2009


R. Ionasec, Y. Wang, B. Georgescu, I. Voigt, N. Navab, D. Comaniciu:
Robust Motion Estimation Using Trajectory Spectrum Learning: Application to Aortic and Mitral Valve Modeling from 4D TEEInternational Conference on Computer Vision (ICCV), Kyoto, Japan, 2009.
R. Ionasec, B. Heigl, J. Hornegger:
Acquisition-related motion compensation for digital subtraction angiography, Computerized Medical Imaging and Graphics, Volume 33, Issue 4, Pages 247-332 (June 2009).
A. Barbu, R. Ionasec:
Boosting Cross-Modality Image Registration, Joint Urban Remote Sensing, Shanghai 2009.
I. Voigt, R. Ionasec, B. Georgescu, H. Houle, M. Huber, J. Hornegger, D. Comaniciu:
Model-driven physiological assessment of the mitral valve from 4D TEE , SPIE Medical Imaging, 2009, Orlando, USA, February 2009.
R. Ionasec, A. Tsymbal, D. Vitanovski, B. Georgescu, K. Zhou, N. Navab, D. Comaniciu:
Shape-based diagnosis of the aortic valve , SPIE Medical Imaging, 2009, Orlando, USA, February 2009.
D. Vitanovski, R. Ionasec, B. Georgescu, M. Huber, R. Taylor, J. Hornegger, D. Comaniciu:
Personalized pulmonary trunk modeling for intervention planning and valve assessment estimated from CT data, Medical Image Computing and Computer Assisted Intervention (MICCAI), London, UK, September 20-24 2009.
R. Ionasec, I. Voigt, B. Georgescu, H. Houle, J. Hornegger, N. Navab, D. Comaniciu:
Modeling and assessment of the Aortic-Mitral valve coupling from 4D TEE and CT , Medical Image Computing and Computer Assisted Intervention (MICCAI), London, UK, September 20-24 2009.

2008


E. Gassner, R. 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.
R. 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.
R. 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.
J. Choi, B. Georgescu, R. Ionasec, S. Raman, G. Hong, S. Liu, H. 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.

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