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7T Epilepsy Task Force Consensus Recommendations on the Use of 7T MRI in Clinical Practice

Giske Opheim 1, 2 Anja van Der Kolk 3, 4 Karin Markenroth Bloch 5 Albert Colon 6 Kathryn Davis 7 Thomas Henry 8 Jacobus F.A. Jansen 9, 10 Stephen Jones 11 Jullie Pan 12 Karl Rössler 13 Joel Stein 14 Maria Strandberg 15 Siegfried Trattnig 16, 17 Pierre-Francois van de Moortele 18 Maria Isabel Vargas 19 Irene Wang 20 Fabrice Bartolomei 21, 22 Neda Bernasconi 23 Andrea Bernasconi 23 Boris Bernhardt 23 Isabella Björkman-Burtscher 24 Mirco Cosottini 25 Sandhitsu Das 26 Lucie Hertz-Pannier 27 Sara Inati 28 Michael Jurkiewicz 29 Ali Khan 30 Shuli Liang 31 Ruoyun Emily Ma 18 Srinivasan Mukundan 32 Heath Pardoe Lars Pinborg 33, 1 Jonathan Polimeni 34, 35 Jean-Philippe Ranjeva 36, 37 Esther Steijvers 38 Steven Stufflebeam 34, 35 Tim Veersema 39 Alexandre Vignaud 40 Natalie Voets 41 Serge Vulliemoz 42 Christopher Wiggins 38 Rong Xue 43 Renzo Guerrini 44, 45 Maxime Guye 36, 37 
27 BAOBAB - Unité Baobab
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Abstract : Identifying a structural brain lesion on MRI has important implications in epilepsy and is the most important factor that correlates with seizure freedom after surgery in patients with drug-resistant focal onset epilepsy. However, at conventional magnetic field strengths (1.5 and 3T), only approximately 60%–85% of MRI examinations reveal such lesions. Over the last decade, studies have demonstrated the added value of 7T MRI in patients with and without known epileptogenic lesions from 1.5 and/or 3T. However, translation of 7T MRI to clinical practice is still challenging, particularly in centers new to 7T, and there is a need for practical recommendations on targeted use of 7T MRI in the clinical management of patients with epilepsy. The 7T Epilepsy Task Force—an international group representing 21 7T MRI centers with experience from scanning over 2,000 patients with epilepsy—would hereby like to share its experience with the neurology community regarding the appropriate clinical indications, patient selection and preparation, acquisition protocols and setup, technical challenges, and radiologic guidelines for 7T MRI in patients with epilepsy. This article mainly addresses structural imaging; in addition, it presents multiple nonstructural MRI techniques that benefit from 7T and hold promise as future directions in epilepsy. Answering to the increased availability of 7T MRI as an approved tool for diagnostic purposes, this article aims to provide guidance on clinical 7T MRI epilepsy management by giving recommendations on referral, suitable 7T MRI protocols, and image interpretation.
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https://hal-amu.archives-ouvertes.fr/hal-03501353
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Submitted on : Thursday, December 23, 2021 - 10:37:54 AM
Last modification on : Friday, June 17, 2022 - 2:18:20 PM

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Giske Opheim, Anja van Der Kolk, Karin Markenroth Bloch, Albert Colon, Kathryn Davis, et al.. 7T Epilepsy Task Force Consensus Recommendations on the Use of 7T MRI in Clinical Practice. Neurology, American Academy of Neurology, 2021, 96 (7), pp.327-341. ⟨10.1212/WNL.0000000000011413⟩. ⟨hal-03501353⟩

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