Research Partner
Research Partner
Director, Laboratory for Mathematics in Imaging
Professor of Radiology, Harvard Medical School
Carl-Fredrik’s considerable expertise in diffusion MRI and in the development of novel methods for analyzing and evaluating image data has been of great value to Random Walk Imaging.
To visit Dr. Westins website, please click here.
Publications and Presentations
Gradient waveform design for tensor-valued encoding in diffusion MRI
J Neurosci Methods (2020) doi: 10.1016/j.jneumeth.2020.109007 – Szczepankiewicz F, Westin CF, Nilsson M.
Motion‐compensated gradient waveforms for tensor‐valued diffusion encoding by constrained numerical optimization
Magn Reson Med (2020) doi: 10.1002/mrm.28551 – F. Szczepankiewicz, J. Sjölund, E. Dall’Armellina, S. Plein, JE. Schneider, I. Teh I, and C.-F. Westin.
Towards unconstrained compartment modeling in white matter using diffusion‐relaxation MRI with tensor‐valued diffusion encoding
Magn Reson Med. 2020 Sep;84(3):1605-1623 – B. Lampinen, F. Szczepankiewicz, J. Mårtensson, D. van Westen, O. Hansson, C.‐F. Westin, and M. Nilsson
Transferring principles of solid-state and Laplace NMR to the field of in vivo brain MRI
Magn. Reson., 1, 27-43, 2020 – J. P. de Almeida Martins, C. M. W. Tax, F. Szczepankiewicz, D. K. Jones, C.-F. Westin, and D. Topgaard
Tensor-valued diffusion MRI in under 3 minutes: An initial survey of microscopic anisotropy and tissue heterogeneity in four brain tumor types
Magn Reson Med. 2020 Feb;83(2):608-620 – M. Nilsson, F. Szczepankiewicz, C.-F. Westin, A. Goldby, D. van Westen, and P. C. Sundgren
Linear, planar and spherical tensor-valued diffusion MRI data by free waveform encoding in healthy brain, water, oil and liquid crystals
Data Brief. 2019 Jul 2;25:104208 – F. Szczepankiewicz, S. Hoge, and C.-F. Westin
Maxwell-compensated design of asymmetric gradient waveforms for tensor-valued diffusion encoding
Magn Reson Med. 2019 Oct;82(4):1424-1437 – F. Szczepankiewicz, C.-F. Westin, and M. Nilsson
Orientationally-averaged diffusion-attenuated magnetic resonance signal for locally-anisotropic diffusion
Sci Rep. 2019 Mar 20;9(1):4899 – M. Herberthson, C. Yolcu, H. Knutsson, C.-F. Westin, E. Özarslan
Searching for the neurite density with diffusion MRI: Challenges for biophysical modeling
Hum Brain Mapp. 2019 Jun 1;40(8):2529-2545 –B. Lampinen, F. Szczepankiewicz, M. Novén, D. van Westen, O. Hansson, E. Englund, J. Mårtensson, C.-F. Westin, and M. Nilsson
Cumulant expansions for measuring water exchange using diffusion MRI
J Chem Phys. 2018 Feb 21;148(7):074109 – L. Ning, M. Nilsson, S. Lasič, C.-F. Westin, and Y. Rathi
Liquid crystal phantom for validation of microscopic diffusion anisotropy measurements on clinical MRI systems
Magn Reson Med. 2018 Mar;79(3):1817-1828 – M. Nilsson, J. Larsson, D. Lundberg, F. Szczepankiewicz, T. Witzel, C.-F. Westin, K. Bryskhe, and D. Topgaard
Resolution limit of cylinder diameter estimation by diffusion MRI: The impact of gradient waveform and orientation dispersion
NMR Biomed. 2017 Jul;30(7):e3711 – M. Nilsson, S. Lasič, I. Drobnjak, D. Topgaard, and C.-F. Westin
The link between diffusion MRI and tumor heterogeneity: Mapping cell eccentricity and density by diffusional variance decomposition (DIVIDE)
Neuroimage. 2016 Nov 15;142:522-532 – F. Szczepankiewicz, D. van Westen, E. Englund, C.-F. Westin, F. Ståhlberg, J. Lätt, P. C. Sundgren, and M. Nilsson
Q-space trajectory imaging for multidimensional diffusion MRI of the human brain
Neuroimage. 2016 Jul 15;135:345-62 – C.-F. Westin, H. Knutsson, O. Pasternak, F. Szczepankiewicz, E. Özarslan, D. van Westen, C. Mattisson, M. Bogren, L. O’Donnell, M. Kubicki, D. Topgaard, and M. Nilsson
Constrained optimization of gradient waveforms for generalized diffusion encoding
J Magn Reson. 2015 Dec;261:157-68 – J. Sjölund, F. Szczepankiewicz, M. Nilsson, D. Topgaard, C.-F. Westin, and H. Knutsson
Conventions and nomenclature for double diffusion encoding (DDE) NMR and MRI
Magn Reson Med. 2016 Jan;75(1):82-7 – N. Shemesh, S. N. Jespersen, D. C. Alexander, Y. Cohen, I. Drobnjak, T. B. Dyrby, J. Finsterbusch, M. A. Koch, T. Kuder, F. Laun, M. Lawrenz, H. Lundell, P. P. Mitra, M. Nilsson, E. Özarslan, D. Topgaard, and C.-F. Westin
NMR diffusion encoding with axial symmetry and variable anisotropy: Distinguishing between prolate and oblate microscopic diffusion tensors with unknown orientation distribution
J Chem Phys. 2015 Mar 14;142(10):104201 – S. Eriksson, S. Lasič, M. Nilsson, C.-F. Westin, and D. Topgaard
Quantification of microscopic diffusion anisotropy disentangles effects of orientation dispersion from microstructure: Applications in healthy volunteers and in brain tumors
Neuroimage. 2015 Jan 1;104:241-52 – F. Szczepankiewicz, S. Lasič, D. van Westen, P. C. Sundgren, E. Englund, C.-F. Westin, F. Ståhlberg, J. Lätt, D. Topgaard, and M. Nilsson
Measurement tensors in diffusion MRI: Generalizing the concept of diffusion encoding
Med Image Comput Comput Assist Interv. 2014;17(Pt 3):209-16 – C.-F. Westin, F. Szczepankiewicz, O. Pasternak, E. Özarslan, D. Topgaard, H. Knutsson, and M. Nilsson
