Tobias Schaeffter

Publication Activity (10 Years)

Years Active: 2003-2024
Publications (10 Years): 22

Top Topics

Top Venues

IEEE Trans. Medical Imaging

IEEE Trans. Biomed. Eng.

Comput. Medical Imaging Graph.

Publications

Daniel Schwabe, Katinka Becker, Martin Seyferth, Andreas Klaß, Tobias Schaeffter
The METRIC-framework for assessing data quality for trustworthy AI in medicine: a systematic review. npj Digit. Medicine 7 (1) (2024)
Andreas Kofler, Christian Wald, Tobias Schaeffter, Markus Haltmeier, Christoph Kolbitsch
Convolutional Analysis Operator Learning by End-to-End Training of Iterative Neural Networks. ISBI (2022)
Andreas Kofler, Christian Wald, Tobias Schaeffter, Markus Haltmeier, Christoph Kolbitsch
Convolutional Analysis Operator Learning by End-To-End Training of Iterative Neural Networks. CoRR (2022)
Andreas Kofler, Christian Wald, Tobias Schaeffter, Markus Haltmeier, Christoph Kolbitsch
Convolutional Dictionary Learning by End-To-End Training of Iterative Neural Networks. CoRR (2022)
Andreas Kofler, Christian Wald, Tobias Schaeffter, Markus Haltmeier, Christoph Kolbitsch
Convolutional Dictionary Learning by End-To-End Training of Iterative Neural Networks. EUSIPCO (2022)
Nils Strodthoff, Patrick Wagner, Tobias Schaeffter, Wojciech Samek
Deep Learning for ECG Analysis: Benchmarks and Insights from PTB-XL. IEEE J. Biomed. Health Informatics 25 (5) (2021)
Andreas Kofler, Markus Haltmeier, Tobias Schaeffter, Christoph Kolbitsch
An End-To-End-Trainable Iterative Network Architecture for Accelerated Radial Multi-Coil 2D Cine MR Image Reconstruction. CoRR (2021)
Aditi Roy, Marta Varela, Henry Chubb, Robert S. MacLeod, Jules C. Hancox, Tobias Schaeffter, Oleg V. Aslanidi
Identifying locations of re-entrant drivers from patient-specific distribution of fibrosis in the left atrium. PLoS Comput. Biol. 16 (9) (2020)
Andreas Kofler, Marc Dewey, Tobias Schaeffter, Christian Wald, Christoph Kolbitsch
Spatio-Temporal Deep Learning-Based Undersampling Artefact Reduction for 2D Radial Cine MRI With Limited Training Data. IEEE Trans. Medical Imaging 39 (3) (2020)
Andreas Kofler, Marc Dewey, Tobias Schaeffter, Christoph Kolbitsch, Markus Haltmeier
Unsupervised Adaptive Neural Network Regularization for Accelerated Radial Cine MRI. CoRR (2020)
Nils Strodthoff, Patrick Wagner, Tobias Schaeffter, Wojciech Samek
Deep Learning for ECG Analysis: Benchmarks and Insights from PTB-XL. CoRR (2020)
Christopher J. Arthurs, Nan Xiao, Philippe Moireau, Tobias Schaeffter, C. Alberto Figueroa
A flexible framework for sequential estimation of model parameters in computational hemodynamics. Adv. Model. Simul. Eng. Sci. 7 (1) (2020)
Tobias Kretz, Klaus-Robert Müller, Tobias Schaeffter, Clemens Elster
Mammography Image Quality Assurance Using Deep Learning. IEEE Trans. Biomed. Eng. 67 (12) (2020)
Andreas Kofler, Markus Haltmeier, Tobias Schaeffter, Marc Kachelrieß, Marc Dewey, Christian Wald, Christoph Kolbitsch
Neural Networks-based Regularization of Large-Scale Inverse Problems in Medical Imaging. CoRR (2019)
Aditi Roy, Marta Varela, Henry Chubb, Robert S. MacLeod, Jules C. Hancox, Tobias Schaeffter, Mark D. O'Neill, Oleg V. Aslanidi
Virtual Catheter Ablation of Target Areas Identified from Image-Based Models of Atrial Fibrillation. FIMH (2019)
Judith Lehnert, Christoph Kolbitsch, Gerd Wübbeler, Amedeo Chiribiri, Tobias Schaeffter, Clemens Elster
Large-Scale Bayesian Spatial-Temporal Regression with Application to Cardiac MR-Perfusion Imaging. SIAM J. Imaging Sci. 12 (4) (2019)
Andreas Kofler, Marc Dewey, Tobias Schaeffter, Christian Wald, Christoph Kolbitsch
Spatio-Temporal Deep Learning-Based Undersampling Artefact Reduction for 2D Radial Cine MRI with Limited Data. CoRR (2019)
Marta Varela, Ross Morgan, Adeline Theron, Desmond Dillon-Murphy, Henry Chubb, John Whitaker, Markus Henningsson, Paul Aljabar, Tobias Schaeffter, Christoph Kolbitsch, Oleg V. Aslanidi
Novel MRI Technique Enables Non-Invasive Measurement of Atrial Wall Thickness. IEEE Trans. Medical Imaging 36 (8) (2017)
Jackie Ma, Maximilian März, Stephanie Funk, Jeanette Schulz-Menger, Gitta Kutyniok, Tobias Schaeffter, Christoph Kolbitsch
Shearlet-based compressed sensing for fast 3D cardiac MR imaging using iterative reweighting. CoRR (2017)
Adelaide de Vecchi, Alberto Gómez, Kuberan Pushparajah, Tobias Schaeffter, John M. Simpson, Reza Razavi, Graeme P. Penney, Nicolas P. Smith, David A. Nordsletten
A novel methodology for personalized simulations of ventricular hemodynamics from noninvasive imaging data. Comput. Medical Imaging Graph. 51 (2016)
Asghar Ataollahi, Rashed Karim, Arash Soleiman Fallah, Kawal S. Rhode, Reza Razavi, Lakmal D. Seneviratne, Tobias Schaeffter, Kaspar Althoefer
Three-Degree-of-Freedom MR-Compatible Multisegment Cardiac Catheter Steering Mechanism. IEEE Trans. Biomed. Eng. 63 (11) (2016)
Rashed Karim, Pranav Bhagirath, Piet Claus, Richard James Housden, Zhong Chen, Zahra Karimaghaloo, Hyon-Mok Sohn, Laura Lara Rodríguez, Sergio Vera, Xènia Albà, Anja Hennemuth, Heinz-Otto Peitgen, Tal Arbel, Miguel Ángel González Ballester, Alejandro F. Frangi, Marco Götte, Reza Razavi, Tobias Schaeffter, Kawal S. Rhode
Evaluation of state-of-the-art segmentation algorithms for left ventricle infarct from late Gadolinium enhancement MR images. Medical Image Anal. 30 (2016)
Catalina Tobon-Gomez, Arjan J. Geers, Jochen Peters, Jürgen Weese, Karen Pinto, Rashed Karim, Mohammed Ammar, Abdelaziz Daoudi, Ján Margeta, Zulma L. Sandoval, Birgit Stender, Yefeng Zheng, Maria A. Zuluaga, Julián Betancur, Nicholas Ayache, Mohammed Amine Chikh, Jean-Louis Dillenseger, B. Michael Kelm, Saïd Mahmoudi, Sébastien Ourselin, Alexander Schlaefer, Tobias Schaeffter, Reza Razavi, Kawal S. Rhode
Benchmark for Algorithms Segmenting the Left Atrium From 3D CT and MRI Datasets. IEEE Trans. Medical Imaging 34 (7) (2015)
Alberto Gómez, Adelaide de Vecchi, Martin Jantsch, Wenzhe Shi, Kuberan Pushparajah, John M. Simpson, Nicolas P. Smith, Daniel Rueckert, Tobias Schaeffter, Graeme P. Penney
4D Blood Flow Reconstruction Over the Entire Ventricle From Wall Motion and Blood Velocity Derived From Ultrasound Data. IEEE Trans. Medical Imaging 34 (11) (2015)
Rashed Karim, YingLiang Ma, Munjung Jang, Richard James Housden, Steven E. Williams, Zhong Chen, Asghar Ataollahi, Kaspar Althoefer, C. Aldo Rinaldi, Reza Razavi, Mark D. O'Neill, Tobias Schaeffter, Kawal S. Rhode
Surface flattening of the human left atrium and proof-of-concept clinical applications. Comput. Medical Imaging Graph. 38 (4) (2014)
Ghislain Vaillant, Claudia Prieto, Christoph Kolbitsch, Graeme P. Penney, Tobias Schaeffter
Retrospective Rigid Motion Correction in k-Space for Segmented Radial MRI. IEEE Trans. Medical Imaging 33 (1) (2014)
Adelaide de Vecchi, Rachel E. Clough, Nicholas R. Gaddum, Marcel C. M. Rutten, Pablo Lamata, Tobias Schaeffter, David A. Nordsletten, Nicolas Smith
Catheter-Induced Errors in Pressure Measurements in Vessels: An In-Vitro and Numerical Study. IEEE Trans. Biomed. Eng. 61 (6) (2014)
Nicolas Toussaint, Christian T. Stoeck, Tobias Schaeffter, Sebastian Kozerke, Maxime Sermesant, Philip G. Batchelor
In vivo human cardiac fibre architecture estimation using shape-based diffusion tensor processing. Medical Image Anal. 17 (8) (2013)
Catalina Tobon-Gomez, Mathieu De Craene, Kristin McLeod, Lennart Tautz, Wenzhe Shi, Anja Hennemuth, Adityo Prakosa, H. Wang, Gerry Carr-White, Stam Kapetanakis, Anja Lutz, Volker Rasche, Tobias Schaeffter, Constantine Butakoff, Ola Friman, Tommaso Mansi, Maxime Sermesant, Xiahai Zhuang, Sébastien Ourselin, Heinz-Otto Peitgen, Xavier Pennec, Reza Razavi, Daniel Rueckert, Alejandro F. Frangi, Kawal S. Rhode
Benchmarking framework for myocardial tracking and deformation algorithms: An open access database. Medical Image Anal. 17 (6) (2013)
Jamie McClelland, David J. Hawkes, Tobias Schaeffter, Andrew P. King
Respiratory motion models: A review. Medical Image Anal. 17 (1) (2013)
Catalina Tobon-Gomez, Jochen Peters, Jürgen Weese, Karen Pinto, Rashed Karim, Tobias Schaeffter, Reza Razavi, Kawal S. Rhode
Left Atrial Segmentation Challenge: A Unified Benchmarking Framework. STACOM (2013)
Alberto Gómez, Adelaide de Vecchi, Kuberan Pushparajah, John M. Simpson, Daniel Giese, Tobias Schaeffter, Graeme P. Penney
3D Intraventricular Flow Mapping from Colour Doppler Images and Wall Motion. MICCAI (2) (2013)
Alberto Gómez, Kuberan Pushparajah, John M. Simpson, Daniel Giese, Tobias Schaeffter, Graeme P. Penney
A sensitivity analysis on 3D velocity reconstruction from multiple registered echo Doppler views. Medical Image Anal. 17 (6) (2013)
Radomír Chabiniok, James Wong, Daniel Giese, David Nordsletten, Wenzhe Shi, Gerald Greil, Daniel Rueckert, Reza Razavi, Tobias Schaeffter, Nic Smith
Flow Analysis in Cardiac Chambers Combining Phase Contrast, 3D Tagged and Cine MRI. FIMH (2013)
Alberto Gómez, Daniel Giese, Kuberan Pushparajah, John M. Simpson, Tobias Schaeffter, Graeme P. Penney
Quantification of Transvalvular Flow through Composite Gaussian Surfaces from Temporally Interleaved Multi-view 3D Colour Doppler Images. STACOM (2012)
Bobo Hu, Gopal Varma, Chris Randell, Stephen F. Keevil, Tobias Schaeffter, Paul Glover
)-Cooled RF Coil for High-Resolution In Vivo Imaging on a 3-Tesla Whole-Body Scanner. IEEE Trans. Instrum. Meas. 61 (1) (2012)
Christian Buerger, Rachel E. Clough, Andrew P. King, Tobias Schaeffter, Claudia Prieto
Nonrigid Motion Modeling of the Liver From 3-D Undersampled Self-Gated Golden-Radial Phase Encoded MRI. IEEE Trans. Medical Imaging 31 (3) (2012)
YingLiang Ma, Rashed Karim, Richard James Housden, Geert Gijsbers, Roland Bullens, Christopher Aldo Rinaldi, Reza Razavi, Tobias Schaeffter, Kawal S. Rhode
Cardiac Unfold: A Novel Technique for Image-Guided Cardiac Catheterization Procedures. IPCAI (2012)
Rashed Karim, Zhong Chen, Samantha Obom, YingLiang Ma, Prince Acheampong, Harminder Gill, Jaspal Gill, C. Aldo Rinaldi, Mark D. O'Neill, Reza Razavi, Tobias Schaeffter, Kawal S. Rhode
Infarct Segmentation of the Left Ventricle Using Graph-Cuts. STACOM (2012)
Andrew P. King, Christian Buerger, Charalampos Tsoumpas, Paul K. Marsden, Tobias Schaeffter
Thoracic respiratory motion estimation from MRI using a statistical model and a 2-D image navigator. Medical Image Anal. 16 (1) (2012)
Kawal S. Rhode, YingLiang Ma, Richard James Housden, Rashed Karim, C. Aldo Rinaldi, Michael Cooklin, Jaswinder S. Gill, Mark D. O'Neill, Tobias Schaeffter, Jatin Relan, Maxime Sermesant, Herve Delingette, Nicholas Ayache, Martin W. Krüger, Walther H. W. Schulze, Gunnar Seemann, Olaf Dössel, Reza Razavi
Clinical applications of image fusion for electrophysiology procedures. ISBI (2012)
Rashed Karim, Piet Claus, Zhong Chen, Richard James Housden, Samantha Obom, Harminder Gill, YingLiang Ma, Prince Acheampong, Mark D. O'Neill, Reza Razavi, Tobias Schaeffter, Kawal S. Rhode
Infarct Segmentation Challenge on Delayed Enhancement MRI of the Left Ventricle. STACOM (2012)
Christian Buerger, Tobias Schaeffter, Andrew P. King
Hierarchical adaptive local affine registration for fast and robust respiratory motion estimation. Medical Image Anal. 15 (4) (2011)
Alberto Gómez, John M. Simpson, Cheng Yao, Tobias Schaeffter, Graeme P. Penney
3D flow reconstruction from multiple registered echo doppler views. ISBI (2011)
Rashed Karim, Gang Gao, James L. Harrison, Aruna Arujuna, Hendrik Lambert, Giovanni Leo, Jaswinder S. Gill, Reza Razavi, Tobias Schaeffter, Mark D. O'Neill, Kawal S. Rhode
Mapping Contact Force during Catheter Ablation for the Treatment of Atrial Fibrillation: New Insights into Ablation Therapy. FIMH (2011)
Rashed Karim, Aruna Arujuna, Alex Brazier, Jaswinder S. Gill, C. Aldo Rinaldi, Mark D. O'Neill, Reza Razavi, Tobias Schaeffter, Daniel Rueckert, Kawal S. Rhode
Automatic Segmentation of Left Atrial Scar from Delayed-Enhancement Magnetic Resonance Imaging. FIMH (2011)
Panagiotis Polygerinos, Asghar Ataollahi, Tobias Schaeffter, Reza Razavi, Lakmal D. Seneviratne, Kaspar Althoefer
MRI-Compatible Intensity-Modulated Force Sensor for Cardiac Catheterization Procedures. IEEE Trans. Biomed. Eng. 58 (3) (2011)
YingLiang Ma, Anoop Shetty, Simon G. Duckett, C. Aldo Rinaldi, Tobias Schaeffter, Reza Razavi, Gerry Carr-White, Kawal S. Rhode
Real-Time Cardiac MR Anatomy and Dyssynchrony Overlay for Guidance of Cardiac Resynchronization Therapy Procedures: Clinical Results Update. FIMH (2011)
Vassilios Hurmusiadis, Kawal S. Rhode, Tobias Schaeffter, Kevin Sherman
Virtual Arthroscopy Trainer for Minimally Invasive Surgery. MMVR (2011)
Rashed Karim, Aruna Arujuna, Alex Brazier, Jaswinder S. Gill, C. Aldo Rinaldi, Michael Cooklin, Mark D. O'Neill, Reza Razavi, Tobias Schaeffter, Daniel Rueckert, Kawal S. Rhode
Validation of a Novel Method for the Automatic Segmentation of Left Atrial Scar from Delayed-Enhancement Magnetic Resonance. STACOM (2011)
F. Savill, Tobias Schaeffter, Andrew P. King
Assessment of input signal positioning for cardiac respiratory motion models during different breathing patterns. ISBI (2011)
Catalina Tobon-Gomez, Mathieu De Craene, Annette Dahl, Stam Kapetanakis, Gerry Carr-White, Anja Lutz, Volker Rasche, Patrick Etyngier, Sebastian Kozerke, Tobias Schaeffter, Chiara Riccobene, Yves Martelli, Oscar Camara, Alejandro F. Frangi, Kawal S. Rhode
A Multimodal Database for the 1 st Cardiac Motion Analysis Challenge. STACOM (2011)
Andrew P. King, Christian Buerger, Tobias Schaeffter
Cardiac Respiratory Motion Modelling by Simultaneous Registration and Modelling from Dynamic MRI Images. WBIR (2010)
Panagiotis Polygerinos, Pinyo Puangmali, Tobias Schaeffter, Reza Razavi, Lakmal D. Seneviratne, Kaspar Althoefer
Novel miniature MRI-compatible fiber-optic force sensor for cardiac catheterization procedures. ICRA (2010)
YingLiang Ma, Simon G. Duckett, Phani Chinchapatnam, Anoop Shetty, C. Aldo Rinaldi, Tobias Schaeffter, Kawal S. Rhode
Image and Physiological Data Fusion for Guidance and Modelling of Cardiac Resynchronization Therapy Procedures. STACOM/CESC (2010)
Benjamin R. Knowles, Dennis Caulfield, Michael Cooklin, C. Aldo Rinaldi, Jaswinder S. Gill, Julian Bostock, Reza Razavi, Tobias Schaeffter, Kawal S. Rhode
3-D Visualization of Acute RF Ablation Lesions Using MRI for the Simultaneous Determination of the Patterns of Necrosis and Edema. IEEE Trans. Biomed. Eng. 57 (6) (2010)
Cheng Yao, John M. Simpson, Tobias Schaeffter, Graeme P. Penney
Spatial compounding of large numbers of multi-view 3D echocardiography images using feature consistency. ISBI (2010)
Christian Buerger, Tobias Schaeffter, Andrew P. King
Hierarchical adaptive local affine registration for respiratory motion estimation from 3-D MRI. ISBI (2010)
Andrew P. King, Kawal S. Rhode, Reza Razavi, Tobias Schaeffter
An Adaptive and Predictive Respiratory Motion Model for Image-Guided Interventions: Theory and First Clinical Application. IEEE Trans. Medical Imaging 28 (12) (2009)
Panagiotis Polygerinos, Tobias Schaeffter, Lakmal D. Seneviratne, Kaspar Althoefer
Measuring tip and side forces of a novel catheter prototype: A feasibility study. IROS (2009)
Andrew P. King, Redha Boubertakh, Kawal S. Rhode, YingLiang Ma, Phani Chinchapatnam, Gang Gao, T. Tangcharoen, Matthew Ginks, Michael Cooklin, Jaswinder S. Gill, David J. Hawkes, Reza Razavi, Tobias Schaeffter
A subject-specific technique for respiratory motion correction in image-guided cardiac catheterisation procedures. Medical Image Anal. 13 (3) (2009)
Thomas Sangild Sørensen, David Atkinson, Tobias Schaeffter, Michael Sass Hansen
Real-Time Reconstruction of Sensitivity Encoded Radial Magnetic Resonance Imaging Using a Graphics Processing Unit. IEEE Trans. Medical Imaging 28 (12) (2009)
Benjamin R. Knowles, Dennis Caulfield, Matthew Ginks, Michael Cooklin, Julian Bostock, Christopher Aldo Rinaldi, Jaswinder S. Gill, Reza Razavi, Tobias Schaeffter, Kawal S. Rhode
A novel technique for the three-dimensional visualization of radio-frequency ablation lesions using delayed enhancement magnetic resonance imaging. Medical Imaging: Image-Guided Procedures (2009)
Chengliang Hu, Giancarlo Amati, Nicola Gullick, Stephen Oakley, Vassilios Hurmusiadis, Tobias Schaeffter, Graeme P. Penney, Kawal S. Rhode
A system for the registration of arthroscopic images to magnetic resonance images of the knee: for improved virtual knee arthroscopy. Medical Imaging: Image-Guided Procedures (2009)
Andrew P. King, Redha Boubertakh, K. L. Ng, YingLiang Ma, Phani Chinchapatnam, Gang Gao, Tobias Schaeffter, David J. Hawkes, Reza Razavi, Kawal S. Rhode
A technique for respiratory motion correction in image guided cardiac catheterisation procedures. Medical Imaging: Image-Guided Procedures (2008)
YingLiang Ma, Kawal S. Rhode, Andy P. King, Gang Gao, Phani Chinchapatnam, Tobias Schaeffter, Reza Razavi, Kurt Saetzler
Time-varying Image Data Visualization Framework for Application in Cardiac Catheterization Procedures. TPCG (2008)
Xiahai Zhuang, David J. Hawkes, William R. Crum, Redha Boubertakh, Sergio Uribe, David Atkinson, Philipp G. Batchelor, Tobias Schaeffter, Reza Razavi, Derek L. G. Hill
Robust registration between cardiac MRI images and atlas for segmentation propagation. Medical Imaging: Image Processing (2008)
Thomas Sangild Sørensen, Tobias Schaeffter, Karsten O. Noe, Michael Sass Hansen
Accelerating the Nonequispaced Fast Fourier Transform on Commodity Graphics Hardware. IEEE Trans. Medical Imaging 27 (4) (2008)
Gang Gao, Segolene Tarte, Andy P. King, YingLiang Ma, Phani Chinchapatnam, Tobias Schaeffter, Reza Razavi, Dave Hawkes, Derek L. G. Hill, Kawal S. Rhode
Validation of the use of photogrammetry to register pre-procedure MR images to intra-procedure patient position for image-guided cardiac catheterization procedures. Medical Imaging: Image-Guided Procedures (2008)
YingLiang Ma, Kawal S. Rhode, Gang Gao, Andrew P. King, Phani Chinchapatnam, Tobias Schaeffter, David J. Hawkes, Reza Razavi, Graeme P. Penney
Ultrasound calibration using intensity-based image registration: for application in cardiac catheterization procedures. Medical Imaging: Image-Guided Procedures (2008)
Kawal S. Rhode, YingLiang Ma, Angela Chandrasena, Andrew P. King, Gang Gao, Phani Chinchapatnam, Maxime Sermesant, David J. Hawkes, Tobias Schaeffter, Jaswinder S. Gill, Reza Razavi
Evaluation of the use of multimodality skin markers for the registration of pre-procedure cardiac MR images and intra-procedure x-ray fluoroscopy images for image guided cardiac electrophysiology procedures. Medical Imaging: Image-Guided Procedures (2008)
Sascha Krüger, Stephan Wolff, Arno Schmitgen, Holger Timinger, Martin Bublat, Tobias Schaeffter, Arya Nabavi
Fast and Accurate Automatic Registration for MR-Guided Procedures Using Active Microcoils. IEEE Trans. Medical Imaging 26 (3) (2007)
Stefanie Winkelmann, Tobias Schaeffter, T. Koehler, Holger Eggers, Olaf Dössel
An Optimal Radial Profile Order Based on the Golden Ratio for Time-Resolved MRI. IEEE Trans. Medical Imaging 26 (1) (2007)
Phani Chinchapatnam, Kawal S. Rhode, Andrew P. King, Gang Gao, YingLiang Ma, Tobias Schaeffter, David J. Hawkes, Reza Razavi, Derek L. G. Hill, Simon R. Arridge, Maxime Sermesant
Anisotropic Wave Propagation and Apparent Conductivity Estimation in a Fast Electrophysiological Model: Application to XMR Interventional Imaging. MICCAI (1) (2007)
Stefanie Winkelmann, Tobias Schaeffter, Holger Eggers, Olaf Dössel
SNR enhancement in radial SSFP imaging using partial k-space averaging. IEEE Trans. Medical Imaging 24 (2) (2005)
Arya Nabavi, Tobias Schaeffter, A. Schmittgen, Stephan Wolff, R. Werner, M. Pinsker, H. Maximilian Mehdorn
Automatic registration of intraoperative MRI for surgical navigation - a phantom study. CARS (2004)
Tobias Schaeffter, Michael Grass, Roland Proksa, Volker Rasche
Real-Time Adaptive Filtering for Projection Reconstruction MR-Fluoroscopy. IEEE Trans. Medical Imaging 22 (1) (2003)