Portrait of Julien Cohen-Adad

Julien Cohen-Adad

Associate Academic Member
Associate Professor, Polytechnique Montréal, Electrical Engineering Department
Adjunct Professor, Université de Montréal, Department of Neuroscience
Research Topics
Medical Machine Learning
Website
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Biography

Julien Cohen-Adad is a professor at Polytechnique Montréal and the associate director of the Neuroimaging Functional Unit at Université de Montréal. He is also the Canada Research Chair in Quantitative Magnetic Resonance Imaging.

His research focuses on advancing neuroimaging methods with the help of AI. Some examples of projects are:

- Multi-modal training for medical imaging tasks (segmentation of pathologies, diagnosis, etc.)

- Adding prior from MRI physics to improve model generalization

- Incorporating uncertainty measures to deal with inter-rater variability

- Continuous learning strategies when data sharing is restricted

- Bringing AI methods into clinical radiology routine via user-friendly software solutions

Cohen-Adad also leads multiple open-source software projects that are benefiting the research and clinical community (see neuro.polymtl.ca/software.html). In short, he loves MRI with strong magnets, neuroimaging, programming and open science!

Current Students

Rohan Banerjee
Collaborating Alumni - Polytechnique Montréal
Co-supervisor :
Gauthier Gidel
Website
Github
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Pierre Louis Benveniste
PhD - Polytechnique Montréal
Co-supervisor :
Hervé Lombaert
Website
Github
Google Scholar
Armand Collin
PhD - Polytechnique Montréal
Github
Thomas Dagonneau
Master's Research - Polytechnique Montréal
Github
Naga Karthik Enamundram
PhD - Polytechnique Montréal
Co-supervisor :
Sarath Chandar
emvnagakarthik@gmail.com
Website
Github
Google Scholar
Nilser Laines Medina
PhD - Polytechnique Montréal
Nathan Molinier
PhD - Polytechnique Montréal
Github
Kalum Ost
Collaborating researcher
Abel Salmona Salmona
Research Intern - Polytechnique Montréal
abel.salmona@gmail.com
Github
Julien Thouveny
Master's Research - Université de Montréal
Arthur Toulouse
Master's Research - Polytechnique Montréal
Github
Jan Valosek
Postdoctorate - Polytechnique Montréal
Website
Github
Google Scholar

Publications

Cervical Spinal Cord Magnetization Transfer Ratio and Its Relationship With Clinical Outcomes in Multiple Sclerosis
Lisa Eunyoung Lee
Julien Cohen-Adad
Irene M. Vavasour
Melanie Guenette
Katherine Sawicka
Neda Rashidi‐Ranjbar
Nathan Churchill
Akash Chopra
Adelia Adelia
Pierre-Louis Benveniste
Anthony Traboulsee
Nathalie Arbour
Fabrizio Giuliani
Larry D. Lynd
Scott B. Patten
Alexandre Prat
Alice Schabas
Penelope Smyth
Roger Tam
Yunyan Zhang … (see 6 more)
Simon J. Graham
Mojgan Hodaie
Anthony Feinstein
Shannon Kolind
Tom A. Schweizer
Jiwon Oh
2025-06-29
Annals of Clinical and Translational Neurology (published)
doi.org
Ultrasound and MRI-based evaluation of relationships between morphological and mechanical properties of the lower lumbar multifidus muscle in chronic low back pain.
Neda Naghdi
Sara Masi
Cléo Bertrand
Brent Rosenstein
Julien Cohen-Adad
Hassan Rivaz
Mathieu Roy
Maryse Fortin
2025-06-09
European Spine Journal (published)
doi.org
Multi-center benchmarking of cervical spinal cord RF coils for 7 T MRI: A traveling spines study
Eva Alonso‐Ortiz
Daniel Papp
Robert L. Barry
Kyota Poëti
Alan C. Seifert
Kyle M. Gilbert
Nibardo Lopez‐Rios
Jan Paska
Falk Eippert
Nikolaus Weiskopf
Laura Beghini
Nadine Graedel
Robert Trampel
Martina F Callaghan
Christoph S. Aigner
Patrick Freund
Maryam Seif
Aurélien Destruel
Virginie Callot
Johanna Vannesjo … (see 1 more)
Julien Cohen-Adad
2025-05-20
Magnetic Resonance in Medicine (published)
doi.org
Multi‐center benchmarking of cervical spinal cord <scp>RF</scp> coils for 7 T <scp>MRI</scp>: A traveling spines study
Eva Alonso‐Ortiz
Daniel Papp
Robert L. Barry
Kyota Poëti
Alan C. Seifert
Kyle M. Gilbert
Nibardo Lopez‐Rios
Jan Paska
Falk Eippert
Nikolaus Weiskopf
Laura Beghini
Nadine Graedel
Robert Trampel
Martina F Callaghan
Christoph S. Aigner
Patrick Freund
Maryam Seif
Aurélien Destruel
Virginie Callot
Johanna Vannesjo … (see 1 more)
Julien Cohen-Adad
2025-05-20
Magnetic Resonance in Medicine (published)
doi.org
Influence of scanning plane on Human Spinal Cord functional Magnetic Resonance echo planar imaging
Marta Moraschi
Silvia Tommasin
Laura Maugeri
Mauro DiNuzzo
Julien Cohen-Adad
Marco Masullo
Fabio Mangini
Lorenzo Giovannelli
Daniele Mascali
Tommaso Gili
Valerio Pisani
Ugo Nocentini
Federico Giove
Michela Fratini
BACKGROUND: Functional Magnetic Resonance Imaging (fMRI) is based on the Blood Oxygenation Level Dependent contrast and has been exploited f… (see more)or the indirect study of the neuronal activity within both the brain and the spinal cord. However, the interpretation of spinal cord fMRI (scfMRI) is still controversial and its diffusion is rather limited because of technical limitations. Overcoming these limitations would have a beneficial effect for the assessment and follow-up of spinal injuries and neurodegenerative diseases. PURPOSE: This study was aimed at systematically verify whether sagittal scanning in scfMRI using EPI readout is a viable alternative to the more common axial scanning, and at optimizing a pipeline for EPI-based scfMRI data analysis, based on Spinal Cord Toolbox (SCT). METHODS: Forty-five healthy subjects underwent MRI acquisition in a Philips Achieva 3T MRI scanner. T2*-weighted fMRI data were acquired using a GE-EPI sequence along sagittal and axial planes during an isometric motor task. Differences on benchmarks were assessed via paired two-sample t-test at p=0.05. RESULTS: We investigated the impact of the acquisition strategy by means of various metrics such as Temporal Signal to Noise Ratio (tSNR), Dice Coefficient to assess geometric distortions, Reproducibility and Sensitivity. tSNR was higher in axial than in sagittal scans, as well as reproducibility within the whole cord mask (t=7.4, p0.01) and within the GM mask (t=4.2, p0.01). The other benchmarks, associated with distortion and functional response, showed no differenc
2025-05-12
PLOS One (published)
doi.org
arxiv.org
Monitoring morphometric drift in lifelong learning segmentation of the spinal cord
Enamundram Naga Karthik
Sandrine B'edard
Jan Valovsek
Christoph Aigner
Elise Bannier
Josef Bednavr'ik
Virginie Callot
Anna Combes
Armin Curt
Gergely David
Falk Eippert
Lynn Farner
M. G. Fehlings
Patrick Freund
Tobias Granberg
Cristina Granziera
Rhscir Network Imaging Group
Ulrike Horn
Tom'avs Hor'ak
Suzanne Humphreys … (see 36 more)
Markus Hupp
Anne Kerbrat
Nawal Kinany
Shannon Kolind
Petr Kudlivcka
Anna Lebret
Lisa Eunyoung Lee
Caterina Mainero
Allan R. Martin
Megan McGrath
Govind Nair
Kristin P. O’Grady
Jiwon Oh
Russell Ouellette
Nikolai Pfender
Dario Pfyffer
P. Pradat
Alexandre Prat
Emanuele Pravatà
D. S. Reich
Ilaria Ricchi
Naama Rotem-Kohavi
Simon Schading-Sassenhausen
Maryam Seif
Andrew C. Smith
Seth Aaron Smith
Grace Sweeney
Roger Tam
Anthony Traboulsee
Constantina A. Treaba
Charidimos Tsagkas
Zachary Vavasour
Dimitri Van De Ville
Kenneth A. Weber
Sarath Chandar
Julien Cohen-Adad
2025-05-02
ArXiv (preprint)
arxiv.org
arxiv.org
Impact of through‐slice gradient optimization for dynamic slice‐wise shimming in the cervico‐thoracic spinal cord
Arnaud Breheret
Alexandre D'Astous
Yixin Ma
Jason P. Stockmann
Julien Cohen-Adad
2025-05-01
Magnetic Resonance in Medicine (published)
doi.org
Monitoring morphometric drift in lifelong learning segmentation of the spinal cord
Enamundram Naga Karthik
Sandrine B'edard
Jan Valošek
Christoph Aigner
Elise Bannier
Josef Bednavr'ik
Virginie Callot
Anna Combes
Armin Curt
Gergely David
Falk Eippert
Lynn Farner
M. G. Fehlings
Patrick Freund
Tobias Granberg
Cristina Granziera
Rhscir Network Imaging Group
Ulrike Horn
Tom'avs Hor'ak
Suzanne Humphreys … (see 36 more)
Markus Hupp
Anne Kerbrat
Nawal Kinany
Shannon Kolind
Petr Kudlivcka
Anna Lebret
Lisa Eunyoung Lee
Caterina Mainero
Allan R. Martin
Megan McGrath
Govind Nair
Kristin P. O’Grady
Jiwon Oh
Russell Ouellette
Nikolai Pfender
Dario Pfyffer
P. Pradat
Alexandre Prat
Emanuele Pravatà
D. S. Reich
Ilaria Ricchi
Naama Rotem-Kohavi
Simon Schading-Sassenhausen
Maryam Seif
Andrew C. Smith
Seth Aaron Smith
Grace Sweeney
Roger Tam
Anthony Traboulsee
Constantina A. Treaba
Charidimos Tsagkas
Zachary Vavasour
Dimitri Van De Ville
Kenneth A. Weber
Sarath Chandar
Julien Cohen-Adad
2025-05-01
arXiv (published)
doi.org
arxiv.org
Rootlets-based registration to the spinal cord PAM50 template
Sandrine B'edard
Jan Valošek
Valeria Oliva
Kenneth A. Weber
Julien Cohen-Adad
2025-05-01
arXiv (published)
doi.org
arxiv.org
Spinal Cord Tract Integrity in Degenerative Cervical Myelopathy.
Newton Cho
Abdul Al-Shawwa
W. Bradley Jacobs
Nathan Evaniew
Jacques Bouchard
Steven Casha
Stephan duPlessis
Peter Lewkonia
Fred Nicholls
Alex Soroceanu
Ganesh Swamy
Kenneth C. Thomas
Michael M.H. Yang
Julien Cohen-Adad
David W. Cadotte
2025-04-03
Neurosurgery (published)
doi.org
Addressing Missing Modality Challenges in MRI Images: A Comprehensive Review
Reza Azad
Mohammad Dehghanmanshadi
Nika Khosravi
Julien Cohen-Adad
Dorit Merhof
2025-04-01
Computational Visual Media (published)
doi.org
Considerations and recommendations from the <scp>ISMRM</scp> diffusion study group for preclinical diffusion <scp>MRI</scp>: Part 2—Ex vivo imaging: Added value and acquisition
Kurt G Schilling
Francesco Grussu
Andrada Ianus
Brian Hansen
Amy F. D. Howard
Rachel L. C. Barrett
Manisha Aggarwal
Stijn Michielse
Fatima Nasrallah
Warda Syeda
Nian Wang
Jelle Veraart
Alard Roebroeck
Andrew F. Bagdasarian
Cornelius Eichner
Farshid Sepehrband
Jan Zimmermann
Lucas Soustelle
Christien Bowman
Benjamin C. Tendler … (see 38 more)
Andreea Hertanu
Ben Jeurissen
Marleen Verhoye
Lucio Frydman
Yohan van de Looij
David Hike
Jeff F. Dunn
Karla Miller
Bennett Landman
Noam Shemesh
Arthur Anderson
Emilie McKinnon
Shawna Farquharson
Flavio Dell’Acqua
Carlo Pierpaoli
Ivana Drobnjak
Alexander Leemans
Kevin D. Harkins
Maxime Descoteaux
Duan Xu
Hao Huang
Mathieu D. Santin
Samuel C. Grant
Andre Obenaus
Gene S. Kim
Dan Wu
Denis Le Bihan
Stephen J. Blackband
Luisa Ciobanu
Els Fieremans
Ruiliang Bai
Trygve B. Leergaard
Jiangyang Zhang
Tim B. Dyrby
G. Allan Johnson
Julien Cohen-Adad
Matthew D. Budde
Ileana O. Jelescu
2025-03-04
Magnetic Resonance in Medicine (published)
doi.org