TractOracle: towards an anatomically-informed reward function for RL-based tractography

Autor: Théberge, Antoine, Descoteaux, Maxime, Jodoin, Pierre-Marc

Reinforcement learning (RL)-based tractography is a competitive alternative to machine learning and classical tractography algorithms due to its high anatomical accuracy obtained without the need for any annotated data. However, the reward functions

Externí odkaz: http://arxiv.org/abs/2403.17845

What Matters in Reinforcement Learning for Tractography

Autor: Théberge, Antoine, Desrosiers, Christian, Descoteaux, Maxime, Jodoin, Pierre-Marc

Recently, deep reinforcement learning (RL) has been proposed to learn the tractography procedure and train agents to reconstruct the structure of the white matter without manually curated reference streamlines. While the performances reported were co

Externí odkaz: http://arxiv.org/abs/2305.09041

Considerations and recommendations from the ISMRM Diffusion Study Group for preclinical diffusion MRI: Part 2 -- Ex vivo imaging: added value and acquisition

Autor: Schilling, Kurt G, Grussu, Francesco, Ianus, Andrada, Hansen, Brian, Howard, Amy FD, Barrett, Rachel L C, Aggarwal, Manisha, Michielse, Stijn, Nasrallah, Fatima, Syeda, Warda, Wang, Nian, Veraart, Jelle, Roebroeck, Alard, Bagdasarian, Andrew F, Eichner, Cornelius, Sepehrband, Farshid, Zimmermann, Jan, Soustelle, Lucas, Bowman, Christien, Tendler, Benjamin C, Hertanu, Andreea, Jeurissen, Ben, Frydman, Lucio, van de Looij, Yohan, Hike, David, Dunn, Jeff F, Miller, Karla, Landman, Bennett A, Shemesh, Noam, Anderson, Adam, McKinnon, Emilie, Farquharson, Shawna, Acqua, Flavio Dell', Pierpaoli, Carlo, Drobnjak, Ivana, Leemans, Alexander, Harkins, Kevin D, Descoteaux, Maxime, Xu, Duan, Huang, Hao, Santin, Mathieu D, Grant, Samuel C., Obenaus, Andre, Kim, Gene S, Wu, Dan, Bihan, Denis Le, Blackband, Stephen J, Ciobanu, Luisa, Fieremans, Els, Bai, Ruiliang, Leergaard, Trygve, Zhang, Jiangyang, Dyrby, Tim B, Johnson, G Allan, Cohen-Adad, Julien, Budde, Matthew D, Jelescu, Ileana O

The value of preclinical diffusion MRI (dMRI) is substantial. While dMRI enables in vivo non-invasive characterization of tissue, ex vivo dMRI is increasingly used to probe tissue microstructure and brain connectivity. Ex vivo dMRI has several experi

Externí odkaz: http://arxiv.org/abs/2209.13371

Progressive remodeling of structural networks following surgery for operculo-insular epilepsy

Autor: Sami Obaid, Guido I. Guberman, Etienne St-Onge, Emma Campbell, Manon Edde, Layton Lamsam, Alain Bouthillier, Alexander G. Weil, Alessandro Daducci, François Rheault, Dang K. Nguyen, Maxime Descoteaux

Publikováno v: Frontiers in Neurology, Vol 15 (2024)

IntroductionOperculo-insular epilepsy (OIE) is a rare condition amenable to surgery in well-selected cases. Despite the high rate of neurological complications associated with OIE surgery, most postoperative deficits recover fully and rapidly. We pro

Externí odkaz: https://doaj.org/article/6d84c705977f49c6a2a5cc926c668e49

The neurophysiological brain-fingerprint of Parkinson’s diseaseResearch in context

Autor: Jason da Silva Castanheira, Alex I. Wiesman, Justine Y. Hansen, Bratislav Misic, Sylvain Baillet, John Breitner, Judes Poirier, Pierre Bellec, Véronique Bohbot, Mallar Chakravarty, Louis Collins, Pierre Etienne, Alan Evans, Serge Gauthier, Rick Hoge, Yasser Ituria-Medina, Gerhard Multhaup, Lisa-Marie Münter, Natasha Rajah, Pedro Rosa-Neto, Jean-Paul Soucy, Etienne Vachon-Presseau, Sylvia Villeneuve, Philippe Amouyel, Melissa Appleby, Nicholas Ashton, Daniel Auld, Gülebru Ayranci, Christophe Bedetti, Marie-Lise Beland, Kaj Blennow, Ann Brinkmalm Westman, Claudio Cuello, Mahsa Dadar, Leslie-Ann Daoust, Samir Das, Marina Dauar-Tedeschi, Louis De Beaumont, Doris Dea, Maxime Descoteaux, Marianne Dufour, Sarah Farzin, Fabiola Ferdinand, Vladimir Fonov, Julie Gonneaud, Justin Kat, Christina Kazazian, Anne Labonté, Marie-Elyse Lafaille-Magnan, Marc Lalancette, Jean-Charles Lambert, Jeannie-Marie Leoutsakos, Laura Mahar, Axel Mathieu, Melissa McSweeney, Pierre-François Meyer, Justin Miron, Jamie Near, Holly NewboldFox, Nathalie Nilsson, Pierre Orban, Cynthia Picard, Alexa Pichet Binette, Jean-Baptiste Poline, Sheida Rabipour, Alyssa Salaciak, Matthew Settimi, Sivaniya Subramaniapillai, Angela Tam, Christine Tardif, Louise Théroux, Jennifer Tremblay-Mercier, Stephanie Tullo, Irem Ulku, Isabelle Vallée, Henrik Zetterberg, Vasavan Nair, Jens Pruessner, Paul Aisen, Elena Anthal, Alan Barkun, Thomas Beaudry, Fatiha Benbouhoud, Jason Brandt, Leopoldina Carmo, Charles Edouard Carrier, Laksanun Cheewakriengkrai, Blandine Courcot, Doris Couture, Suzanne Craft, Christian Dansereau, Clément Debacker, René Desautels, Sylvie Dubuc, Guerda Duclair, Mark Eisenberg, Rana El-Khoury, Anne-Marie Faubert, David Fontaine, Josée Frappier, Joanne Frenette, Guylaine Gagné, Valérie Gervais, Renuka Giles, Renee Gordon, Clifford Jack, Benoit Jutras, Zaven Khachaturian, David Knopman, Penelope Kostopoulos, Félix Lapalme, Tanya Lee, Claude Lepage, Illana Leppert, Cécile Madjar, David Maillet, Jean-Robert Maltais, Sulantha Mathotaarachchi, Ginette Mayrand, Diane Michaud, Thomas Montine, John Morris, Véronique Pagé, Tharick Pascoal, Sandra Peillieux, Mirela Petkova, Galina Pogossova, Pierre Rioux, Mark Sager, Eunice Farah Saint-Fort, Mélissa Savard, Reisa Sperling, Shirin Tabrizi, Pierre Tariot, Eduard Teigner, Ronald Thomas, Paule-Joanne Toussaint, Miranda Tuwaig, Vinod Venugopalan, Sander Verfaillie, Jacob Vogel, Karen Wan, Seqian Wang, Elsa Yu, Isabelle Beaulieu-Boire, Pierre Blanchet, Sarah Bogard, Manon Bouchard, Sylvain Chouinard, Francesca Cicchetti, Martin Cloutier, Alain Dagher, Clotilde Degroot, Alex Desautels, Marie Hélène Dion, Janelle Drouin-Ouellet, Anne-Marie Dufresne, Nicolas Dupré, Antoine Duquette, Thomas Durcan, Lesley K. Fellows, Edward Fon, Jean-François Gagnon, Ziv Gan-Or, Angela Genge, Nicolas Jodoin, Jason Karamchandani, Anne-Louise Lafontaine, Mélanie Langlois, Etienne Leveille, Martin Lévesque, Calvin Melmed, Oury Monchi, Jacques Montplaisir, Michel Panisset, Martin Parent, Minh-Thy Pham-An, Ronald Postuma, Emmanuelle Pourcher, Trisha Rao, Jean Rivest, Guy Rouleau, Madeleine Sharp, Valérie Soland, Michael Sidel, Sonia Lai Wing Sun, Alexander Thiel, Paolo Vitali

Publikováno v: EBioMedicine, Vol 105, Iss , Pp 105201- (2024)

Summary: Background: Research in healthy young adults shows that characteristic patterns of brain activity define individual “brain-fingerprints” that are unique to each person. However, variability in these brain-fingerprints increases in indivi

Externí odkaz: https://doaj.org/article/53cebec840074e92a908d46662561dae