OFSEP acquisition protocols

Within the framework of OFSEP (see OFSEP project information, in French), the imaging group has proposed encephalic and medulla protocols approved by the community and compatible with clinical acquisition times.

OFSEP MRI protocol [Updated in 2018 - see below "MRI acquisition protocols"]

This protocol has been published in the scientific journals “Journal of Neuroradiology” and “La Lettre du Neurologue”:

Cotton F, Kremer S, Hannoun S, Vukusic S, Dousset V; Imaging Working Group of the "Observatoire français de la sclérose en plaques" (OFSEP). OFSEP, a nationwide cohort of people with multiple sclerosis: Consensus minimal MRI protocol. J Neuroradiol. 2015;42(3):133-140.

Cotton F, Edan G. L’Observatoire français de la sclérose en plaques : vers un consensus IRM national. La Lettre du Neurologue, June 2015, no.6.

The OFSEP MRI protocol is available below (in French):


MRI acquisition protocols

In order to define the parameters of the various sequences, a homogenization project was conducted in 2014 by Elise Bannier (MRI physician in Rennes), Monica Sigovan (MRI physician in Lyon) and Bixente Dilharreguy (MRI physician in Bordeaux), in collaboration with engineers from different manufacturers (Philips, Siemens, GE). They have proposed common geometry parameters and an exhaustive list of recommended parameters for each sequence.

MRI acquisition protocol proposals optimized for Siemens (edx, pdf), Philips (exam-card) and GE (pdf), conform to OFSEP recommendations, are provided in the table below. These protocols are being distributed and adapted in collaboration with the manufacturers to cover all the machines used in France (model and software version).

If your model/software version is not in this list, please contact us via this address: This email address is being protected from spambots. You need JavaScript enabled to view it..
Your feedback on the images obtained with the parameters proposed, along with example images, will also be gratefully received.

Constructeur Modèle IRM Champ Version logicielle Lien (C_cerveau ; M_moelle)
Format PDF Format examcard
Siemens Aera   D13 C_Siemens_Aera_D13.pdf C_Siemens_Aera_D13.edx
Avanto   B17 C_Siemens_Avanto_B17.pdf  
Skyra   D13 C_Siemens_Skyra_D13.pdf  C_Siemens_Skyra_D13.edx
Verio   B17 C_Siemens_Verio_B17.pdf
Philips Achieva 1.5 T R3.2   C_Philips_Achieva_1p5T_vR3p2.examcard
3 T R3.2   C_Philips_Achieva_3T_vR3p2.examcard
Ingenia 1.5 T R4.1   C_Philips_Ingenia_1p5T_vR4p1.ExamCard
3 T R5.1   C_Philips_Ingenia_3T_vR5p1.ExamCard
GE 750w_GEM 3T DV25   C_M_GE_Explorer_3T_DV25.zip
Système Explorer 1.5 T DV25   C_M_GE_Explorer_1.5T_DV25.tar