Research Associate (PhD)


Conducting research in MRI physics, methods and biomedical applications.

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Research Associate (PhD)


  • Applied Mathematics
  • Artificial Intelligence
  • Image Processing
  • k-space Acquisition
  • New Contrasts
  • New MR Biomarkers
  • Quantitative Brain Multimodal imaging
  • Quantitative MRI
  • Ultra-high field MRI

Research Projects


Publications :

Tardieu, Marion, Najat Salameh, Line Souris, David Rousseau, Laurène Jourdain, Hanadi Skeif, François Prévot, et al. “Magnetic Resonance Elastography with Guided Pressure Waves.” NMR in Biomedicine, January 27, 2022, e4701.
Brun, Gilles, Benoit Testud, Olivier M. Girard, Pierre Lehmann, Ludovic de Rochefort, Pierre Besson, Aurélien Massire, et al. “Automatic Segmentation of Deep Grey Nuclei Using a High-Resolution 7T Magnetic Resonance Imaging Atlas—Quantification of T1 Values in Healthy Volunteers.” European Journal of Neuroscience 55, no. 2 (2022): 438–60.
Leroi, Lisa, Vincent Gras, Nicolas Boulant, Mathilde Ripart, Emilie Poirion, Mathieu D. Santin, Romain Valabregue, et al. “Simultaneous Proton Density, T1 , T2 , and Flip-Angle Mapping of the Brain at 7 T Using Multiparametric 3D SSFP Imaging and Parallel-Transmission Universal Pulses.” Magnetic Resonance in Medicine 84, no. 6 (December 2020): 3286–99.
Chanet, Nicolas, Geneviève Guillot, Georges Willoquet, Laurène Jourdain, Rose-Marie Dubuisson, Gaël Reganha, and Ludovic de Rochefort. “Design of a Fast Field-Cycling Magnetic Resonance Imaging System, Characterization and Methods for Relaxation Dispersion Measurements around 1.5 T.” The Review of Scientific Instruments 91, no. 2 (February 1, 2020): 024102.
Kohlhauer, Matthias, Emilie Boissady, Fanny Lidouren, Ludovic de Rochefort, Mathieu Nadeau, Jérôme Rambaud, Alice Hutin, et al. “A New Paradigm for Lung-Conservative Total Liquid Ventilation.” EBioMedicine 52 (February 2020): 102365.
Düzel, Emrah, Julio Acosta-Cabronero, David Berron, Geert Jan Biessels, Isabella Björkman-Burtscher, Michel Bottlaender, Richard Bowtell, et al. “European Ultrahigh-Field Imaging Network for Neurodegenerative Diseases (EUFIND).” Alzheimer’s & Dementia (Amsterdam, Netherlands) 11 (December 2019): 538–49.
Spincemaille, Pascal, Zhe Liu, Shun Zhang, Ilhami Kovanlikaya, Matteo Ippoliti, Marcus Makowski, Richard Watts, et al. “Clinical Integration of Automated Processing for Brain Quantitative Susceptibility Mapping: Multi-Site Reproducibility and Single-Site Robustness.” Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging 29, no. 6 (November 2019): 689–98.
Bödenler, Markus, Ludovic de Rochefort, P. James Ross, Nicolas Chanet, Geneviève Guillot, Gareth R. Davies, Christian Gösweiner, Hermann Scharfetter, David J. Lurie, and Lionel M. Broche. “Comparison of Fast Field-Cycling Magnetic Resonance Imaging Methods and Future Perspectives.” Molecular Physics 117, no. 7–8 (April 18, 2019): 832–48.
Bandt, S. Kathleen, Ludovic de Rochefort, Weiwei Chen, Alexey V. Dimov, Pascal Spincemaille, Brian H. Kopell, Ajay Gupta, and Yi Wang. “Clinical Integration of Quantitative Susceptibility Mapping Magnetic Resonance Imaging into Neurosurgical Practice.” World Neurosurgery 122 (February 2019): e10–19.
Bydder, Mark, Gavin Hamilton, Ludovic de Rochefort, Ajinkya Desai, Elhamy R. Heba, Rohit Loomba, Jeffrey B. Schwimmer, Nikolaus M. Szeverenyi, and Claude B. Sirlin. “Sources of Systematic Error in Proton Density Fat Fraction (PDFF) Quantification in the Liver Evaluated from Magnitude Images with Different Numbers of Echoes.” NMR in Biomedicine 31, no. 1 (January 2018).
Wang, Hongchen, Catherine Sebrié, Sébastien Judé, Anne Maurin, Stéphanie Rétif, Marilyne Le Mée, Felicia Julea, et al. “Quantitative Gd-DOTA-Based Aerosol Deposition Mapping in the Lungs of Asthmatic Rats Using 3D UTE-MRI.” NMR in Biomedicine 31, no. 12 (2018): e4013.
Leroi, Lisa, Arthur Coste, Ludovic de Rochefort, Mathieu D. Santin, Romain Valabregue, Franck Mauconduit, Eric Giacomini, et al. “Simultaneous Multi-Parametric Mapping of Total Sodium Concentration, T1, T2 and ADC at 7 T Using a Multi-Contrast Unbalanced SSFP.” Magnetic Resonance Imaging 53 (2018): 156–63.
Kee, Youngwook, Zhe Liu, Liangdong Zhou, Alexey Dimov, Junghun Cho, Ludovic de Rochefort, Jin Keun Seo, and Yi Wang. “Quantitative Susceptibility Mapping (QSM) Algorithms: Mathematical Rationale and Computational Implementations.” IEEE Transactions on Bio-Medical Engineering 64, no. 11 (November 2017): 2531–45.
Schweser, Ferdinand, Simon Daniel Robinson, Ludovic de Rochefort, Wei Li, and Kristian Bredies. “An Illustrated Comparison of Processing Methods for Phase MRI and QSM: Removal of Background Field Contributions from Sources Outside the Region of Interest.” NMR in Biomedicine 30, no. 4 (April 2017).
Kaaouana, Takoua, Anne Bertrand, Fatma Ouamer, Bruno Law-Ye, Nadya Pyatigorskaya, Ali Bouyahia, Nathalie Thiery, et al. “Improved Cerebral Microbleeds Detection Using Their Magnetic Signature on T2*-Phase-Contrast: A Comparison Study in a Clinical Setting.” NeuroImage. Clinical 15 (2017): 274–83.
Leguerney, Ingrid, Ludovic de Rochefort, Marie Poirier-Quinot, Alexandre Ingels, Xavier Violas, Sandra Robin, Paule Opolon, et al. “Molecular Imaging to Predict Response to Targeted Therapies in Renal Cell Carcinoma.” Contrast Media & Molecular Imaging 2017 (2017): 7498538.
Wang, Hongchen, Catherine Sebrié, Jean-Pierre Ruaud, Geneviève Guillot, Khaoula Bouazizi-Verdier, Georges Willoquet, Xavier Maître, Luc Darrasse, and Ludovic de Rochefort. “Aerosol Deposition in the Lungs of Spontaneously Breathing Rats Using Gd-DOTA-Based Contrast Agents and Ultra-Short Echo Time MRI at 1.5 Tesla.” Magnetic Resonance in Medicine 75, no. 2 (February 2016): 594–605.
André Dias, S., A. Berdeaux, L. Darrasse, M. Demanesse, L. de Rochefort, M. Filoche, B. Ghaleh, et al. “ABYSS: Therapeutic Hypothermia by Total Liquid Ventilation Following Cardiac Arrest and Resuscitation.” ANR TECSAN 2015 36, no. 2 (March 1, 2015): 110–17.
Kaaouana, Takoua, Ludovic de Rochefort, Thomas Samaille, Nathalie Thiery, Carole Dufouil, Christine Delmaire, Didier Dormont, and Marie Chupin. “2D Harmonic Filtering of MR Phase Images in Multicenter Clinical Setting: Toward a Magnetic Signature of Cerebral Microbleeds.” NeuroImage 104 (January 1, 2015): 287–300.
Abi-Abdallah Rodriguez, Dima, Emmanuel Durand, Ludovic de Rochefort, Younes Boudjemline, and Elie Mousseaux. “Simultaneous Pressure-Volume Measurements Using Optical Sensors and MRI for Left Ventricle Function Assessment during Animal Experiment.” Medical Engineering & Physics 37, no. 1 (January 2015): 100–108.
Khalifé, Maya, Astrid Decoene, Filipa Caetano, Ludovic de Rochefort, Emmanuel Durand, and Dima Rodríguez. “Estimating Absolute Aortic Pressure Using MRI and a One-Dimensional Model.” Journal of Biomechanics 47, no. 13 (October 17, 2014): 3390–99.
Martin, Lionel, Xavier Maître, Ludovic de Rochefort, Mathieu Sarracanie, Marlies Friese, Pascal Hagot, and Emmanuel Durand. “Phase-Contrast Velocity Mapping for Highly Diffusive Fluids: Optimal Bipolar Gradient Pulse Parameters for Hyperpolarized Helium-3.” Magnetic Resonance in Medicine 72, no. 4 (October 2014): 1072–78.
Chenoune, Mourad, Ludovic De Rochefort, Patrick Bruneval, Fanny Lidouren, Matthias Kohlhauer, Aurélien Seemann, Bijan Ghaleh, et al. “Evaluation of Lung Recovery after Static Administration of Three Different Perfluorocarbons in Pigs.” BMC Pharmacology & Toxicology 15 (September 25, 2014): 53.
Girard, Olivier M., Ludovic de Rochefort, Marie Poirier-Quinot, Luc Darrasse, and Robert F. Mattrey. “Quantification Strategies for MRI.” Molecular Imaging Techniques: New Frontiers, Future Science Book Series, October 1, 2013, 66–80.
Poirier-Quinot, Marie, Ludovic de Rochefort, Olivier M Girard, and Luc Darrasse. “MRI: Recent Advances and New Horizons.” Molecular Imaging Techniques: New Frontiers, Future Science Book Series, October 1, 2013, 34–49.
Liu, Jing, Tian Liu, Ludovic de Rochefort, James Ledoux, Ildar Khalidov, Weiwei Chen, A. John Tsiouris, et al. “Morphology Enabled Dipole Inversion for Quantitative Susceptibility Mapping Using Structural Consistency between the Magnitude Image and the Susceptibility Map.” NeuroImage 59, no. 3 (February 1, 2012): 2560–68.
Khalife, M., D. Rodriguez, L. de Rochefort, and E. Durand. “In Vitro Validation of Non-Invasive Aortic Compliance Measurements Using MRI.” Computer Methods in Biomechanics and Biomedical Engineering 15 Suppl 1 (2012): 83–84.
Liu, Tian, Ildar Khalidov, Ludovic de Rochefort, Pascal Spincemaille, Jing Liu, A. John Tsiouris, and Yi Wang. “A Novel Background Field Removal Method for MRI Using Projection onto Dipole Fields (PDF).” NMR in Biomedicine 24, no. 9 (November 2011): 1129–36.
Liu, Tian, Jing Liu, Ludovic de Rochefort, Pascal Spincemaille, Ildar Khalidov, James Robert Ledoux, and Yi Wang. “Morphology Enabled Dipole Inversion (MEDI) from a Single-Angle Acquisition: Comparison with COSMOS in Human Brain Imaging.” Magnetic Resonance in Medicine 66, no. 3 (September 2011): 777–83.
Liu, Tian, Pascal Spincemaille, Ludovic de Rochefort, Richard Wong, Martin Prince, and Yi Wang. “Unambiguous Identification of Superparamagnetic Iron Oxide Particles through Quantitative Susceptibility Mapping of the Nonlinear Response to Magnetic Fields.” Magnetic Resonance Imaging 28, no. 9 (November 2010): 1383–89.
Kressler, Bryan, Ludovic de Rochefort, Tian Liu, Pascal Spincemaille, Quan Jiang, and Yi Wang. “Nonlinear Regularization for per Voxel Estimation of Magnetic Susceptibility Distributions from MRI Field Maps.” IEEE Transactions on Medical Imaging 29, no. 2 (February 2010): 273–81.
Rochefort, Ludovic de, Tian Liu, Bryan Kressler, Jing Liu, Pascal Spincemaille, Vincent Lebon, Jianlin Wu, and Yi Wang. “Quantitative Susceptibility Map Reconstruction from MR Phase Data Using Bayesian Regularization: Validation and Application to Brain Imaging.” Magnetic Resonance in Medicine 63, no. 1 (January 2010): 194–206.
Liu, Tian, Pascal Spincemaille, Ludovic de Rochefort, Bryan Kressler, and Yi Wang. “Calculation of Susceptibility through Multiple Orientation Sampling (COSMOS): A Method for Conditioning the Inverse Problem from Measured Magnetic Field Map to Susceptibility Source Image in MRI.” Magnetic Resonance in Medicine 61, no. 1 (January 2009): 196–204.
Wang, Yi, Ludovic de Rochefort, Tian Liu, and Bryan Kressler. “Magnetic Source MRI: A New Quantitative Imaging of Magnetic Biomarkers.” Conference Proceedings: ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference 2009 (2009): 53–56.
Rochefort, Ludovic de, Thanh Nguyen, Ryan Brown, Pascal Spincemaille, Grace Choi, Jonathan Weinsaft, Martin R. Prince, and Yi Wang. “In Vivo Quantification of Contrast Agent Concentration Using the Induced Magnetic Field for Time-Resolved Arterial Input Function Measurement with MRI.” Medical Physics 35, no. 12 (December 2008): 5328–39.
Nguyen, Thanh D., Ludovic de Rochefort, Pascal Spincemaille, Matthew D. Cham, Jonathan W. Weinsaft, Martin R. Prince, and Yi Wang. “Effective Motion-Sensitizing Magnetization Preparation for Black Blood Magnetic Resonance Imaging of the Heart.” Journal of Magnetic Resonance Imaging: JMRI 28, no. 5 (November 2008): 1092–1100.
Rochefort, Ludovic de, Ryan Brown, Martin R. Prince, and Yi Wang. “Quantitative MR Susceptibility Mapping Using Piece-Wise Constant Regularized Inversion of the Magnetic Field.” Magnetic Resonance in Medicine 60, no. 4 (October 2008): 1003–9.
Rochefort, Ludovic de, Laurence Vial, Redouane Fodil, Xavier Maître, Bruno Louis, Daniel Isabey, Georges Caillibotte, et al. “In Vitro Validation of Computational Fluid Dynamic Simulation in Human Proximal Airways with Hyperpolarized 3He Magnetic Resonance Phase-Contrast Velocimetry.” Journal of Applied Physiology (Bethesda, Md.: 1985) 102, no. 5 (May 2007): 2012–23.
Rochefort, Ludovic de, Xavier Maître, Redouane Fodil, Laurence Vial, Bruno Louis, Daniel Isabey, Céline Croce, et al. “Phase-Contrast Velocimetry with Hyperpolarized 3He for in Vitro and in Vivo Characterization of Airflow.” Magnetic Resonance in Medicine 55, no. 6 (June 2006): 1318–25.
Rochefort, Ludovic de, Xavier Maître, Jacques Bittoun, and Emmanuel Durand. “Velocity-Selective RF Pulses in MRI.” Magnetic Resonance in Medicine 55, no. 1 (January 2006): 171–76.
Vignaud, Alexandre, Xavier Maître, Geneviève Guillot, Emmanuel Durand, Ludovic de Rochefort, Philippe Robert, Véronique Vivès, Robin Santus, and Luc Darrasse. “Magnetic Susceptibility Matching at the Air-Tissue Interface in Rat Lung by Using a Superparamagnetic Intravascular Contrast Agent: Influence on Transverse Relaxation Time of Hyperpolarized Helium-3.” Magnetic Resonance in Medicine 54, no. 1 (July 2005): 28–33.
Fodil, R., C. Croce, B. Louis, A. Coste, J.R. Blondeau, D. Isabey, D. Perchet, et al. “Simulateur Morphofonctionnel Des Voies Aériennes Supérieures et Proximales.” ITBM-RBM 26, no. 1 (January 1, 2005): 72–77.